<SEC-DOCUMENT>0000874015-21-000166.txt : 20211103
<SEC-HEADER>0000874015-21-000166.hdr.sgml : 20211103
<ACCEPTANCE-DATETIME>20211103153703
ACCESSION NUMBER:		0000874015-21-000166
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		66
CONFORMED PERIOD OF REPORT:	20210930
FILED AS OF DATE:		20211103
DATE AS OF CHANGE:		20211103

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IONIS PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0000874015
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				330336973
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19125
		FILM NUMBER:		211375114

	BUSINESS ADDRESS:	
		STREET 1:		2855 GAZELLE COURT
		CITY:			CARLSBAD
		STATE:			CA
		ZIP:			92010
		BUSINESS PHONE:		7609319200

	MAIL ADDRESS:	
		STREET 1:		2855 GAZELLE COURT
		CITY:			CARLSBAD
		STATE:			CA
		ZIP:			92010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ISIS PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>form10q.htm
<DESCRIPTION>IONIS PHARMACEUTICALS INC 10-Q 9-30-2021
<TEXT>
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  <tr>
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<div style="text-align: center;"><span style="font-size: 8pt; font-family: 'Times New Roman', Times, serif;"> </span><br /></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(Registrant&#8217;s telephone number, including area code)</div>
<div style="text-align: center;"><span style="font-size: 8pt; font-family: 'Times New Roman', Times, serif;"> </span><br /></div>
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<div><br /></div>
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<div style="text-align: left; text-indent: 18pt;"><span style="font-size: 8pt; font-family: 'Times New Roman', Times, serif;"> </span><br /></div>
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  <tr>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. <ix:nonNumeric name="dei:EntityCurrentReportingStatus" id="Fact_e17a2f79f1774635891b72e330a0cad6" contextRef="c20210101to20210930">Yes</ix:nonNumeric>&#xA0;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#x2612;</span> No <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#x2610;</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (&#167;232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). <ix:nonNumeric name="dei:EntityInteractiveDataCurrent" id="Fact_bc9950b537434176b4d700a3e75638d9" contextRef="c20210101to20210930">Yes</ix:nonNumeric>&#xA0;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#x2612;</span> No <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#x2610;</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer,&#8221; &#8220;smaller reporting company,&#8221; and &#8220;emerging growth company&#8221; in Rule 12b-2 of the Exchange Act.</div>
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<table cellpadding="0" cellspacing="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z8e20a65954074216b948d5b7afd00d36">
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  <tr>
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    <td style="width: 50%; vertical-align: top;">&#160;</td>
  </tr>
  <tr>
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  <tr>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#x2610;</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Indicate by check mark whether the registrant is a shell company (as defined in Rule 12(b)-2 of the Securities Exchange Act of 1934). Yes <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><ix:nonNumeric name="dei:EntityShellCompany" id="Fact_573f8411fb4f400da714635a3926f154" contextRef="c20210101to20210930" format="ixt-sec:boolballotbox">&#x2610;</ix:nonNumeric></span> No <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#x2612;</span></div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The number of shares of voting common stock outstanding as of October 27, 2021 was <ix:nonFraction name="dei:EntityCommonStockSharesOutstanding" id="Fact_84d73b47edfc434eb2e5178d97427724" contextRef="c20211027" unitRef="U001" decimals="INF" scale="0" format="ixt:numdotdecimal">141,210,015</ix:nonFraction>.</div>
<div><br /></div>
<div>
<div><br /></div>
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<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
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<div></div>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">FORM 10-Q</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">INDEX</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z6f476ee46a5b480b80f6d54ce1af8a69">
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">PART I</div></td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">FINANCIAL INFORMATION</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">ITEM 1:</div></td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Financial Statements:</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Condensed Consolidated Balance Sheets as of September 30, 2021 and December 31, 2020 (unaudited) (as revised)</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Condensed Consolidated Statements of Operations for the three and nine months ended&#xA0;September 30, 2021 and 2020 (unaudited) (as revised)</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Condensed Consolidated Statements of Comprehensive Loss for the three and nine months ended&#xA0;September 30, 2021 and 2020 (unaudited) (as revised)</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Condensed Consolidated Statements of Stockholders&#8217; Equity for the three and nine months ended&#xA0;September 30, 2021 and 2020 (unaudited) (as revised)</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Condensed Consolidated Statements of Cash Flows for the nine months ended&#xA0;September 30, 2021 and 2020 (unaudited) (as revised)</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Notes to Condensed Consolidated Financial Statements (unaudited)</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">ITEM 2:</div></td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations:</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Overview</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">31</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Results of Operations</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">35</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 14.85pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Liquidity and Capital Resources</div></td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">41</div></td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
  </tr>
  <tr>
    <td style="width: 9.88%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">ITEM 3:</div></td>
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    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 7.92%; vertical-align: bottom; background-color: #FFFFFF;">&#160;</td>
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  <tr>
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    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">43</div></td>
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    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
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    <td style="width: 7.92%; vertical-align: bottom; background-color: #CCEEFF;"><div style="text-align: right; margin-right: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">43</div></td>
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    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
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    <td style="width: 82.21%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
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</table>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">TRADEMARKS</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">&#8220;</span>Ionis,&#8221; the Ionis logo, and other trademarks or service marks of Ionis Pharmaceuticals, Inc. appearing in this report are the property of Ionis Pharmaceuticals, Inc. &#8220;Akcea,&#8221; the Akcea logo, and other trademarks or service marks of Akcea Therapeutics, Inc. appearing in this report are the property of Akcea Therapeutics, Inc., Ionis&#8217; wholly owned subsidiary. This report contains additional trade names, trademarks and service marks of others, which are the property of their respective owners. Solely for convenience, trademarks and trade names referred to in this report may appear without the &#174; or TM symbols.</div>
<div><br /></div>
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<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"><!--PROfilePageNumberReset%Num%3%%%-->IONIS PHARMACEUTICALS, INC.</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">CONDENSED CONSOLIDATED BALANCE SHEETS</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(in thousands, except share data)</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Unaudited)</div>
<div><br /></div>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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  <tr>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Current liabilities:</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AccountsPayableCurrent" id="Fact_e36e66d0552f404099023f535d194dfe" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">8,357</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EmployeeRelatedLiabilitiesCurrent" id="Fact_552968f4f2a9496e83f175a2ee89b95c" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">32,320</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accrued liabilities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AccruedLiabilitiesCurrent" id="Fact_213f5a6701c24aa0979bad8e60ab97c3" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">90,161</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income taxes payable</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AccruedIncomeTaxesCurrent" id="Fact_2af0ce9cd98b44bd81fc94205bb5c219" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">450</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AccruedIncomeTaxesCurrent" id="Fact_7acc385f5ade40c4a52676f52d77facb" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,324</ix:nonFraction></div></td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Current portion of long-term obligations</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:LongTermObligationsCurrent" id="Fact_bfee8ed3f29a415ba60a766b5e0cc4b7" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">3,109</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityCurrent" id="Fact_09d676ed2f6648e5b73076a656df1277" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">97,925</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityCurrent" id="Fact_0b483c68b6994735bd21436d4b811df6" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">108,376</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total current liabilities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:LiabilitiesCurrent" id="Fact_b563c92d4e8b4add87b63f57c52a0e82" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">279,778</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:LiabilitiesCurrent" id="Fact_d521a592d7c446a7b398adb17b375e32" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">598,898</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Long-term deferred contract revenue</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityNoncurrent" id="Fact_8aa6408241e44715ba99551864adcae8" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">362,887</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityNoncurrent" id="Fact_ede8dfed22c34e9582c277c64ee5a671" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">424,046</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-indent: 0pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_17a2fd610eef4cd7a40de4f517482a78" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction> percent</span> convertible senior notes, net</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ConvertibleDebtNoncurrent" id="Fact_a398a9b03d9944b0a160b5b317b0ca9e" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">618,341</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ConvertibleDebtNoncurrent" id="Fact_6c57d7bc997a408eac5f0d23f91ceea6" contextRef="c20201231_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-indent: 0pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_65f01bf923dd44568923a6ad8fa6fbdd" contextRef="c20201231_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_4a872f1b79fe480980648870d88ebb8f" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction></ix:nonFraction> percent</span> convertible senior notes, net</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ConvertibleDebtNoncurrent" id="Fact_714a80b1e06f495582600aaf17011943" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">541,768</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ConvertibleDebtNoncurrent" id="Fact_28e26d3aa3364b35803b96f04b984592" contextRef="c20201231_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">540,136</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Long-term obligations, less current portion</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:LongTermObligationsNoncurrent" id="Fact_fd5cf7d013b54a0388cfec028fd6a1c3" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">21,628</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:LongTermObligationsNoncurrent" id="Fact_54d2771a1e14483ab99a8f4e34dd5224" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">23,409</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Long-term mortgage debt</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:LongTermLoansFromBank" id="Fact_5af98209ca0a49319c15718880999db5" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">59,955</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:LongTermLoansFromBank" id="Fact_b3ea6b13b4de4225adb6586558c16a06" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">59,984</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total liabilities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:Liabilities" id="Fact_b675286a500340028e4203fe4698ca8a" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,884,357</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:Liabilities" id="Fact_f7cd0990ec2c4e71bcb30f7b03262cba" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,646,473</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Stockholders&#8217; equity:</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total stockholders&#8217; equity</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquity" id="Fact_88e09c1d71dc4fa5bb36f4591af70f7e" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">530,536</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquity" id="Fact_54e7a9222a6849019c33f1fa21e47093" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">743,282</ix:nonFraction></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 4px;"><div style="text-align: left; text-indent: -9pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total liabilities and stockholders&#8217; equity</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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  </tr>
</table>
<div><br /></div>
<div><br /></div>
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z5fcfbe45c6fd4589877bc78b7f8b7d47">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">See accompanying notes.</div>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>3</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
<div></div>
</div>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(in thousands, except for per share amounts)</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Unaudited)</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="zebe87e8b912244f88d0c9608c862f974" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Revenue:</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Commercial revenue:</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_5be3788d99f54fdfaee577a7cda5700b" contextRef="c20210701to20210930_ProductOrServiceAxis_LicensingAndOtherRoyaltiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,729</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_8fd333eb68924256a711503ecfe6689a" contextRef="c20210701to20210930_ProductOrServiceAxis_ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">48,273</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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  <tr>
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  <tr>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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  <tr>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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  <tr>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Shares used in computing basic and diluted net loss per share</div></td>
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  </tr>
</table>
<div><br /></div>
<div><br /></div>
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zbd6965ed143443279db0330e263d7930">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#160;See accompanying notes.</div>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>4</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(in thousands)</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Unaudited)</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z9165bc987dc543d5b6c728132ebeb3e0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
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    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:ProfitLoss" id="Fact_956abcf640b64e40a411493d69205818" contextRef="c20210701to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">82,466</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:ProfitLoss" id="Fact_47e41b95caab4e92bb28995bd44b3aad" contextRef="c20200701to20200930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">36,614</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:ProfitLoss" id="Fact_1cb4dda56dc9437a83410034c76f7b28" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">253,210</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:ProfitLoss" id="Fact_32ee817a2d9342f89ee6f07b5e4a1b4e" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">124,056</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unrealized gains (losses) on debt securities, net of tax</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" id="Fact_1564f577660349f28871c96d31b381d4" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">6,321</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" id="Fact_7f32c82581ad4b949e2e07adbccdd78e" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">5,803</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Currency translation adjustment</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax" id="Fact_e9b531ac4e7e466f809b4e8a0d95361e" contextRef="c20210701to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">23</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax" id="Fact_b162ec084f6c46ccaef6685d9c1854ba" contextRef="c20200701to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">275</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax" id="Fact_769ab52bea87434eb4b048adcbc4add4" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">45</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax" id="Fact_5a98d17953ba47578caa9b15a11c588f" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">357</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Comprehensive loss</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" id="Fact_f0bdb8167ba5440599f8ff8f4600c9fe" contextRef="c20210701to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">84,107</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
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  <tr>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
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  </tr>
</table>
<div><br /></div>
<div><br /></div>
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z08c43118140a494eaeee29d689d326f0">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">See accompanying notes.</div>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>5</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
<div></div>
</div>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS</span>&#8217;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"> EQUITY</span></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended&#xA0;September 30, 2020 and 2021</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(In thousands)</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Unaudited)</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="zada5500f42fa46eda8855a9928be6fe2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
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    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Common Stock</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Total Ionis</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Stockholders</span>&#8217;</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Deficit</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:SharesIssued" id="Fact_8f9f94f1d3d940a68541e958de1f55f0" contextRef="c20210930_StatementEquityComponentsAxis_CommonStockMember" unitRef="U001" decimals="-3" scale="3" format="ixt:numdotdecimal">141,184</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_ba66578036484b5f968843707bc07ed1" contextRef="c20210930_StatementEquityComponentsAxis_AdditionalPaidInCapitalMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,942,348</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_459e8dddf67049ffbc89a031afcfb160" contextRef="c20210930_StatementEquityComponentsAxis_AccumulatedOtherComprehensiveIncomeMember" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">27,437</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_f3febeb396b8498887a5e227b0d9203b" contextRef="c20210930_StatementEquityComponentsAxis_RetainedEarningsMember" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">1,384,516</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_5da31e271bbc4395b26f5d34fd4e692d" contextRef="c20210930_StatementEquityComponentsAxis_ParentMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">530,536</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_192d6c524908459d8333a666b536f1b0" contextRef="c20210930_StatementEquityComponentsAxis_NoncontrollingInterestMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_410eb94491b24411ae562ce3bd42c127" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">530,536</ix:nonFraction></div></td>
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  </tr>
</table>
<div><br /></div>
<div><br /></div>
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zf910efbd34a340be888100386553c699">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2019 and 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">See accompanying notes.</div>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>6</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
<div></div>
</div>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS</span>&#8217;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"> EQUITY</span></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended&#xA0;September 30, 2020 and 2021</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(In thousands)</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Unaudited)</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="zcd17ac17bbbb417ea532ce2ccc2bf28a" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Common Stock</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Accumulated</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Total Ionis</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Stockholders</span>&#8217;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Total</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Stockholders</span>&#8217;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Description</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Shares</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Amount</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Paid in Capital</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 20%; padding-bottom: 4px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Balance at <span style="text-indent: 0pt;">September 30, 2020</span> (as revised*)</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_e666ab14cb1d46a8ab6b5d73f509f39a" contextRef="c20201231_StatementEquityComponentsAxis_AdditionalPaidInCapitalMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,895,519</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 20%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" id="Fact_2a106fa3693243e4a00bab4a18a8e58a" contextRef="c20210101to20210930_StatementEquityComponentsAxis_NoncontrollingInterestMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" id="Fact_c98a8e4405804809b78076ea7b9cb360" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">98,419</ix:nonFraction></div></td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 20%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Balance at <span style="text-indent: 0pt;">September 30, 2021</span></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_917d5671182346668c95217db75e76ee" contextRef="c20210930_StatementEquityComponentsAxis_AdditionalPaidInCapitalMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,942,348</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_fa4a48ced0104d2191700f0e0ee802e8" contextRef="c20210930_StatementEquityComponentsAxis_AccumulatedOtherComprehensiveIncomeMember" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">27,437</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_96709c8e0b654fd68efeba13e41328d2" contextRef="c20210930_StatementEquityComponentsAxis_RetainedEarningsMember" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">1,384,516</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_04977ab266ad4984b87556846576b5ac" contextRef="c20210930_StatementEquityComponentsAxis_ParentMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">530,536</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_35428b618e4b4f81aec4b954d6da953f" contextRef="c20210930_StatementEquityComponentsAxis_NoncontrollingInterestMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 7%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_de4f347943c8427f88258b2383bfaa30" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">530,536</ix:nonFraction></div></td>
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  </tr>
</table>
<div><br /></div>
<div><br /></div>
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="ze8e70f48ebba4249a60dea06331dbf93">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2019 and 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">See accompanying notes.</div>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>7</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
<div></div>
</div>
<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(in thousands)</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Unaudited)</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z3c53975ce9164583b28461968afd99e6" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Operating activities:</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:ProfitLoss" id="Fact_f7c36546ee144c2c86ebae7331367498" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">253,210</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:ProfitLoss" id="Fact_a21016941dc0429abc056d42872b32b2" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">124,056</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amortization of patents</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AmortizationOfIntangibleAssets" id="Fact_edc8ad178aa7466a8d83a15fca3ea881" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,740</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amortization of premium on investments, net</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amortization of debt issuance costs</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AmortizationOfFinancingCosts" id="Fact_0996ae3cb47d4deda2a70a7fe98905e0" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">3,586</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AmortizationOfFinancingCosts" id="Fact_0c9f58357fb646578e9fa6d8e42f1be2" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,388</ix:nonFraction></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Stock-based compensation expense</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ShareBasedCompensation" id="Fact_04aaa2990d5a40ad8fdb1b5232b70a08" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">98,419</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Gain on investments</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss on early retirement of debt</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:GainsLossesOnExtinguishmentOfDebt" id="Fact_44125a628aae4adebaf473e4c0ba9a0d" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">8,627</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:GainsLossesOnExtinguishmentOfDebt" id="Fact_989bd9cb17ef42079efaf478c47898d3" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash losses related to patents</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ImpairmentOfIntangibleAssetsFinitelived" id="Fact_7fcd200b638b455db39131034fdc6876" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,150</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ImpairmentOfIntangibleAssetsFinitelived" id="Fact_fe5c9b55fb8549bebb24e58da0204a34" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">616</ix:nonFraction></div></td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DeferredIncomeTaxExpenseBenefit" id="Fact_8414c778f38f421ba72eccd5272fd411" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DeferredIncomeTaxExpenseBenefit" id="Fact_21582d84c78941ef9bc300c0128beed5" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,649</ix:nonFraction></div></td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:IncreaseDecreaseInContractWithCustomerAsset" id="Fact_16676ffc3ca64894b557287e56466f06" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">67,136</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:IncreaseDecreaseInContractWithCustomerAsset" id="Fact_4adb47def1984cd7bbd6593823908452" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">24,057</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
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  <tr>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income taxes (payable) receivable</div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accounts payable</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accrued compensation</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accrued liabilities and other current liabilities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Deferred contract revenue</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInContractWithCustomerLiability" id="Fact_5d444769c22d417199294bd747e46936" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">71,610</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInContractWithCustomerLiability" id="Fact_7536a4e7a5c548658c9c6c4190e7e76b" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">73,970</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net cash used in operating activities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Investing activities:</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Purchases of short-term investments</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt" id="Fact_083200534ca3433a9d3c58296e5b5402" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">930,963</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Proceeds from sale of short-term investments</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" id="Fact_421423d1ea9a4d73aef63e7e59de4afb" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,051,857</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Purchases of property, plant and equipment</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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  <tr>
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  <tr>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Financing activities:</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Proceeds from equity, net</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" id="Fact_ddb0c2b46432418f9be1b92d0e804ae9" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">11,564</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Proceeds from issuance of <span style="text-indent: 0pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_3138ef97a61942e0a73ffee4ad82bbd3" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction> percent</span> convertible senior notes</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ProceedsFromConvertibleDebt" id="Fact_63b58d44bc79485085334e3af704ba72" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">632,500</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ProceedsFromConvertibleDebt" id="Fact_afd0c226ad5b41fcac1ac223d1546d24" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-indent: 0pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_e3e6bf77e51c401da062cd5576df22de" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction> percent</span> convertible senior notes issuance costs</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:PaymentsOfDebtIssuanceCosts" id="Fact_797c95633ae147b7a427fdf70b12d025" contextRef="c20210101to20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">15,525</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:PaymentsOfDebtIssuanceCosts" id="Fact_47efa238799d4f988461bdfacb77a7e2" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Repurchase of $<span style="text-indent: 0pt;"><ix:nonFraction name="us-gaap:DebtInstrumentRepurchasedFaceAmount" id="Fact_d7ce1bc0695e4b6d81a528bbbd7d508b" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">247.9</ix:nonFraction></span> million principal amount of <span style="text-indent: 0pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_e747ab98c8114028b343c3416a56f706" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction> percent</span> convertible senior notes</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:ProceedsFromIssuanceOfWarrants" id="Fact_4e30fdaa4dc640ff8c2d5caf82210c86" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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  <tr>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Cash and cash equivalents at beginning of period</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" id="Fact_f005ffe7399e4372b86484b39e4de899" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">397,664</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" id="Fact_6c5f411c5f5446ed84bf5042679097db" contextRef="c20191231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">683,287</ix:nonFraction></div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 4px;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Cash and cash equivalents at end of period</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest paid</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
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    <td valign="bottom" style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="za7dd6f784f134e56afc8374dec3de54e">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">See accompanying notes.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>8</span></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Unaudited)</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">1.&#160; Basis of Presentation</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We prepared the unaudited interim condensed consolidated financial statements for the three and </span>nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#xA0;</span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> on the same basis as the audited financial statements for the year ended </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, with the exception of our retrospective adoption of Accounting Standards Update, or ASU, 2020-06, which simplifies</span> the accounting for convertible debt instruments<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. See Note 2, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Polices</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Convertible Debt, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">for details of our adoption of this guidance. We included all normal recurring adjustments in the financial statements, which we considered necessary for a fair presentation of our financial position at such dates and our operating results and cash flows for those periods. Our operating results for the interim periods may not be indicative of what our operating results will be for the entire year. For more complete financial information, these financial statements, and notes thereto, should be read in conjunction with the audited financial statements for the year ended </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission, or SEC.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In our condensed consolidated financial statements, we included the accounts of Ionis Pharmaceuticals, Inc. and the consolidated results of our wholly owned subsidiary, Akcea Therapeutics, Inc. and its wholly owned subsidiaries (&#8220;we&#8221;, &#8220;us&#8221; or &#8220;our&#8221;). We formed Akcea in December 2014. </span>In July 2017, Akcea completed an <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">initial public offering, or IPO, which reduced our ownership of Akcea&#8217;s common stock below </span><ix:nonFraction name="us-gaap:MinorityInterestOwnershipPercentageByParent" id="Fact_ec7fb54350ee4762b85ff0ac101ed744" contextRef="c20170731_OwnershipAxis_AkceaTherapeuticsIncMember_RangeAxis_MaximumMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">100</ix:nonFraction> percent<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span>&#xA0;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In October 2020, we completed a merger transaction with Akcea such that following the completion of the merger, Akcea became our wholly owned subsidiary. We will refer to this transaction as the Akcea Merger throughout the remainder of this document. </span>We reflected changes in our ownership percentage in our financial statements as an adjustment to noncontrolling interest in the period the changes occurred.</div>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2.&#160; Significant Accounting Policies</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We generally recognize revenue when we have satisfied all contractual obligations and are reasonably assured of collecting the resulting receivable. We are often entitled to bill our customers and receive payment from our customers in advance of recognizing the revenue. In the instances in which we have received payment from our customers in advance of recognizing revenue, we include the amounts in deferred revenue on our condensed consolidated balance sheet.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We earn commercial revenue primarily in the form of royalty payments on net sales of SPINRAZA. We will also recognize as commercial revenue sales milestone payments and royalties we earn under our other partnerships.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we began commercializing TEGSEDI in North America through a distribution agreement with Swedish Orphan Biovitrum AB, or Sobi. In January 2021, we began commercializing TEGSEDI and WAYLIVRA in Europe through a distribution agreement with Sobi. Under our agreements, we are responsible for supplying finished goods inventory to Sobi and Sobi is responsible for selling each medicine to the end customer. As a result of these agreements, we earn a distribution fee on net sales from Sobi for each medicine.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Prior to the second quarter of 2021 in North America, we sold TEGSEDI through exclusive distribution agreements with third-party logistics companies, or 3PLs, that took title to TEGSEDI. The 3PLs then distributed TEGSEDI to a specialty pharmacy and a specialty distributor, which we collectively refer to as wholesalers, who then distributed TEGSEDI to health care providers and patients. In the United States, or U.S., we had a single 3PL as our sole customer and in Canada we also had a single 3PL as our sole customer. Prior to 2021 in Europe, we sold TEGSEDI and WAYLIVRA to hospitals and pharmacies, which were our customers, using 3PLs as distributors.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our collaboration agreement with PTC Therapeutics International Limited, or PTC, PTC is responsible for commercializing TEGSEDI and WAYLIVRA in Latin America and Caribbean countries. In the third quarter of 2021, we earned a $<ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_6d6400e8e7974acaa88660f5c1b84671" contextRef="c20210701to20210930_ProductOrServiceAxis_ProductMember_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInAugust2018WithPtcTherapeuticsMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">4</ix:nonFraction> million milestone payment from PTC when WAYLIVRA was approved in Brazil, which we included in TEGSEDI and WAYLIVRA revenue in our condensed consolidated statement of operations.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Research and development revenue under collaborative agreements</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We often enter into collaboration agreements to license and sell our technology on an exclusive or non-exclusive basis. Our collaboration agreements typically contain multiple elements, or performance obligations, including technology licenses or options to obtain technology licenses, research and development, or R&amp;D, services, and manufacturing services.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">See <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Note 5, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, for collaborations with substantive changes that occurred in 2021. Additionally, see </span>Note 6, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span>, in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for a summary of each of our material collaborative agreements.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Steps to Recognize Revenue</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We use a five-step process to determine the amount of revenue we should recognize and when we should recognize it. The five-step process is as follows:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">1.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Identify the contract</div></td>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accounting rules require us to first determine if we have a contract with our partner, including confirming that we have met each of the following criteria:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We and our partner approved the contract and we are both committed to perform our obligations;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have identified our rights, our partner&#8217;s rights and the payment terms;</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have concluded that the contract has commercial substance, meaning that the risk, timing, or amount of our future cash flows is expected to change as a result of the contract; and</div></td>
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    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We believe collectability of the consideration is probable.</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;">2</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;">.</span></td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Identify the performance obligations</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We next identify our performance obligations, which represent the distinct goods and services we are required to provide under the contract. We typically have only <ix:nonFraction name="ions:RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract" id="Fact_a5d99bad3ce4453ea2bcc34d06e92ad6" contextRef="c20210101to20210930" unitRef="U005" decimals="INF" scale="0" format="ixt-sec:numwordsen">one</ix:nonFraction> performance obligation at the inception of a contract, which is to perform R&amp;D services.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Often we enter into a collaboration agreement in which we provide our partner with an option to license a medicine in the future. We may also provide our partner with an option to request that we provide additional goods or services in the future, such as active pharmaceutical ingredient, or API. We evaluate whether these options are material rights at the inception of the agreement. If we determine an option is a material right, we will consider the option a separate performance obligation. Historically, we have concluded that the options we grant to license a medicine in the future or to provide additional goods and services as requested by our partner are not material rights because these items are contingent upon future events that may not occur and are not priced at a significant discount. When a partner exercises its option to license a medicine or requests additional goods or services, then we identify a new performance obligation for that item.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In some cases, we deliver a license at the start of an agreement. If we determine that our partner has full use of the license and we do not have any additional material performance obligations related to the license after delivery, then we consider the license to be a separate performance obligation.</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">3.</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Determine the transaction price</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We then determine the transaction price by reviewing the amount of consideration we are eligible to earn under the collaboration agreement, including any variable consideration. Under our collaboration agreements, consideration typically includes fixed consideration in the form of an upfront payment and variable consideration in the form of potential milestone payments, license fees and royalties. At the start of an agreement, our transaction price usually consists of only the upfront payment. We do not typically include any payments we may receive in the future in our initial transaction price because the payments are not probable and are contingent on certain future events. We reassess the total transaction price at each reporting period to determine if we should include additional payments in the transaction price.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Milestone payments are our most common type of variable consideration. We recognize milestone payments using the most likely amount method because we will either receive the milestone payment or we will not, which makes the potential milestone payment a binary event. The most likely amount method requires us to determine the likelihood of earning the milestone payment. We include a milestone payment in the transaction price once it is probable we will achieve the milestone event. Most often, we do not consider our milestone payments probable until we or our partner achieve the milestone event because the majority of our milestone payments are contingent upon events that are not within our control and/or are usually based on scientific progress which is inherently uncertain. For example, in the third quarter of 2021, we earned a $<ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_3989775da20c4185b63f6872c87e6832" contextRef="c20210701to20210930_ProductOrServiceAxis_PelacarsenMember_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">25</ix:nonFraction> million milestone payment from Novartis when Novartis achieved <ix:nonFraction name="ions:PercentageEnrollmentInPhase3Study" id="Fact_c6f75a8c4d084642bbeaefe4dc2b1613" contextRef="c20210930_ProductOrServiceAxis_PelacarsenMember_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">50</ix:nonFraction> percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We did not consider the milestone payment probable until Novartis achieved the milestone event because it was contingent on Novartis&#8217; enrollment of patients and was not within our control. We recognized the milestone payment in full in the period the milestone event was achieved because we did not have any remaining performance obligations related to the milestone payment.</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">4.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Allocate the transaction price</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Next, we allocate the transaction price to each of our performance obligations. When we have to allocate the transaction price to more than one performance obligation, we make estimates of the relative stand-alone selling price of each performance obligation because we do not typically sell our goods or services on a stand-alone basis. We then allocate the transaction price to each performance obligation based on the relative stand-alone selling price. We do not reallocate the transaction price after the start of an agreement to reflect subsequent changes in stand-alone selling prices.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We may engage a third party, independent valuation specialist to assist us with determining a stand-alone selling price for collaborations in which we deliver a license at the start of an agreement. We estimate the stand-alone selling price of these licenses using valuation methodologies, such as the relief from royalty method. Under this method, we estimate the amount of income, net of taxes, for the license. We then discount the projected income to present value. The significant inputs we use to determine the projected income of a license could include:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated future product sales;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated royalties we may receive from future product sales;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated contractual milestone payments we may receive;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated expenses we may incur;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated income taxes; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">A discount rate.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We typically estimate the selling price of R&amp;D services by using our internal estimates of the cost to perform the specific services. The significant inputs we use to determine the selling price of our R&amp;D services include:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated number of internal hours we will spend performing these services;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of work we will perform;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of work that we will contract with third parties to perform; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of API we will use.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For purposes of determining the stand-alone selling price of the R&amp;D services we perform and the API we will deliver, accounting guidance requires us to include a markup for a reasonable profit margin.</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">5.</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Recognize revenue</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize revenue in one of two ways, over time or at a point in time. We recognize revenue over time when we are executing on our performance obligation over time and our partner receives benefit over time. For example, we recognize revenue over time when we provide R&amp;D services. We recognize revenue at a point in time when our partner receives full use of an item at a specific point in time. For example, we recognize revenue at a point in time when we deliver a license or API to a partner.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For R&amp;D services that we recognize over time, we measure our progress using an input method. The input methods we use are based on the effort we expend or costs we incur toward the satisfaction of our performance obligation. We estimate the amount of effort we expend, including the time we estimate it will take us to complete the activities, or costs we incur in a given period, relative to the estimated total effort or costs to satisfy the performance obligation. This results in a percentage that we multiply by the transaction price to determine the amount of revenue we recognize each period. This approach requires us to make numerous estimates and use significant judgement. If our estimates or judgements change over the course of the collaboration, they may affect the timing and amount of revenue that we recognize in the current and future periods.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following are examples of when we typically recognize revenue based on the types of payments we receive.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize royalty revenue, including royalties from SPINRAZA sales, in the period in which the counterparty sells the related product and recognizes the related revenue, which in certain cases may require us to estimate our royalty revenue.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our distribution agreements with Sobi we concluded that our performance obligation is to provide services to Sobi over the term of the agreement, which includes supplying finished goods inventory to Sobi and because we retained the marketing authorization for TEGSEDI and WAYLIVRA we are responsible for leading the global commercial strategy for each medicine. We view this performance obligation as a series of distinct activities that are substantially the same. Therefore, we recognize as revenue the price Sobi pays us for the inventory when we deliver the finished goods inventory to Sobi. We also recognize distribution fee revenue based on Sobi&#8217;s net sales of TEGSEDI and WAYLIVRA. Under our agreements with Sobi, Sobi does not generally have a right of return.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Prior to our distribution agreements with Sobi, we recognized TEGSEDI and WAYLIVRA commercial revenue in the period when our customer obtained control of our products, which occurred at a point in time upon transfer of title to the customer. We classified payments to customers or other parties in the distribution channel for services that were distinct and priced at fair value as selling, general and administrative, or SG&amp;A, expenses in our condensed consolidated statements of operations. We classified payments to customers or other parties in the distribution channel that did not meet those criteria as a reduction of revenue, as discussed further below. We excluded from revenues taxes collected from customers relating to TEGSEDI and WAYLIVRA commercial revenue and remitted these amounts to governmental authorities.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Reserves for TEGSEDI and WAYLIVRA commercial revenue</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our distribution agreements with Sobi, Sobi is responsible for any applicable reserves.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Prior to our distribution agreements with Sobi, w</span>e recorded TEGSEDI and WAYLIVRA commercial revenue at our net sales price, or transaction price. We included in our transaction price estimated reserves for discounts, returns, chargebacks, rebates and other allowances that we offered within contracts between us and our customers, wholesalers, distributors, health care providers and other indirect customers. We estimated our reserves using the amounts we have earned or we could claim on the associated sales. We classified our reserves as a reduction of accounts receivable when we were not required to make a payment or as a current liability when we were required to make a payment. In certain cases, our estimates included a range of possible outcomes that were probability weighted for relevant factors such as our historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, our reserves reflected our best estimates under the terms of our respective contracts. When calculating our reserves and related TEGSEDI and WAYLIVRA commercial revenue, we only recognized amounts to the extent that we considered it probable that we would not have to reverse a significant amount of the cumulative sales we previously recognized in a future period. Under our agreements with Sobi, we transferred all reserves to Sobi. See our revenue recognition policy in Note 1, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Organization and Significant Accounting Policies</span>, of our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for additional details regarding how we accounted for the reserves related to TEDSEDI and WAYLIVIRA product sales prior to our agreements with Sobi.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Research and development revenue under collaboration agreements:</span></div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Upfront payments</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">When we enter into a collaboration agreement and receive an upfront payment, we typically record the entire upfront payment as deferred revenue if our only performance obligation is for R&amp;D services we will provide in the future. We amortize the upfront payment into revenue as we perform the R&amp;D services. For example, under our collaboration agreement with Roche to develop IONIS-FB-L<sub>Rx</sub> for the treatment of complement-mediated diseases, we received a $<ix:nonFraction name="ions:UpfrontPaymentReceived" id="Fact_72588160d9344e3d91319fe6a66f7d24" contextRef="c20181001to20181231_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInOctober2018WithRocheMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">75</ix:nonFraction> million upfront payment in the fourth quarter of 2018. We allocated the upfront payment to our single performance obligation, R&amp;D services. We are amortizing the $<ix:nonFraction name="ions:UpfrontPaymentReceived" id="Fact_df2e1cb511f24d2a84b6cc2d7d4dc617" contextRef="c20181001to20181231_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInOctober2018WithRocheMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">75</ix:nonFraction> million upfront payment using an input method over the estimated period of time we are providing R&amp;D services.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are required to include additional consideration in the transaction price when it is probable. We typically include milestone payments for R&amp;D services in the transaction price when they are achieved. We include these milestone payments when they are achieved because typically there is considerable uncertainty in the research and development processes that trigger these payments. Similarly, we include approval milestone payments in the transaction price once the medicine is approved by the applicable regulatory agency. We will recognize sales-based milestone payments in the period in which we achieve the milestone under the sales-based royalty exception allowed under accounting rules.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize milestone payments that relate to an ongoing performance obligation over our period of performance. For example, in the fourth quarter of 2020, we achieved a $<ix:nonFraction name="ions:RevenueFromContractWithCustomerTransactionPriceAdditions" id="Fact_4419a9d643c14dde9c2d40f4d61b0e4c" contextRef="c20201001to20201231_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">7.5</ix:nonFraction> million milestone payment from Biogen when we advanced a target under our 2018 strategic collaboration. We added this payment to the transaction price and allocated it to our R&amp;D services performance obligation. We are recognizing revenue related to this milestone payment over our estimated period of performance.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversely, we recognize in full those milestone payments that we earn based on our partners&#8217; activities when our partner achieves the milestone event and we do not have a performance obligation. For example, in the third quarter of 2021, we recognized a $<ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_107fd5f1da9a4e39b86811c4af02521a" contextRef="c20210701to20210930_ProductOrServiceAxis_PelacarsenMember_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">25</ix:nonFraction> million milestone payment from Novartis when Novartis achieved <ix:nonFraction name="ions:PercentageEnrollmentInPhase3Study" id="Fact_ebcdcb33fb824c78b652963a02868afa" contextRef="c20210930_ProductOrServiceAxis_PelacarsenMember_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">50</ix:nonFraction> percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We recognized the milestone payment in full in the third quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We generally recognize as revenue the total amount we determine to be the relative stand-alone selling price of a license when we deliver the license to our partner. This is because our partner has full use of the license and we do not have any additional performance obligations related to the license after delivery. For example, in the fourth quarter of 2020, we earned a $<ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_432ed8399d7347559e4b9fd7f84313ae" contextRef="c20201001to20201231_ProductOrServiceAxis_Ion455Member_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJuly2015WithAstrazenecaMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">30</ix:nonFraction> million license fee from AstraZeneca when AstraZeneca licensed ION455, an investigational medicine in development to treat nonalcoholic steatohepatitis, or NASH.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize sublicense fee revenue in the period in which a party, who has already licensed our technology, further licenses the technology to another party because we do not have any performance obligations related to the sublicense.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Amendments to Agreements</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">From time to time we amend our collaboration agreements. When this occurs, we are required to assess the following items to determine the accounting for the amendment:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If the additional goods and/or services are distinct from the other performance obligations in the original agreement; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If the goods and/or services are sold at a stand-alone selling price.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If we conclude the goods and/or services in the amendment are distinct from the performance obligations in the original agreement and at a stand-alone selling price, we account for the amendment as a separate agreement. If we conclude the goods and/or services are not distinct and are sold at a stand-alone selling price, we then assess whether the remaining goods or services are distinct from those already provided. If the goods and/or services are distinct from what we have already provided, then we allocate the remaining transaction price from the original agreement and the additional transaction price from the amendment to the remaining goods and/or services. If the goods and/or services are not distinct from what we have already provided, we update the transaction price for our single performance obligation and recognize any change in our estimated revenue as a cumulative adjustment.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, in May 2015, we entered into an exclusive license agreement with Bayer to develop and commercialize IONIS-FXI<sub>Rx</sub> for the prevention of thrombosis. As part of the agreement, Bayer paid us a<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> $</span><ix:nonFraction name="ions:UpfrontPaymentReceived" id="Fact_b0a5ed9e0b0d4e29b24c119065c51524" contextRef="c20150501to20150531_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">100</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million upfront payment. At the onset of the agreement, we were responsible for completing a Phase 2 study of IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> in people with end-stage renal disease on hemodialysis and for providing an initial supply of API. In February 2017, we amended our agreement with Bayer to advance IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and to initiate development of fesomersen (IONIS-FXI-L</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">), which Bayer licensed. As part of the 2017 amendment, Bayer paid us $</span><ix:nonFraction name="ions:UpfrontPaymentReceived" id="Fact_f85da3614c52436e9a2747089ce8bf2a" contextRef="c20170201to20170228_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementAmendedInFebruary2017WithBayerMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">75</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million. We are also eligible to receive milestone payments and tiered royalties on gross margins of IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and fesomersen. Under the 2017 amendment, we concluded we had a new agreement with </span><ix:nonFraction name="ions:RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations" id="Fact_76a7435f661f45b28342f251870de7ff" contextRef="c20170228_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementAmendedInFebruary2017WithBayerMember" unitRef="U005" decimals="INF" scale="0" format="ixt-sec:numwordsen">three</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> performance obligations. These performance obligations were to deliver the license of fesomersen, to provide R&amp;D services and to deliver API. We allocated the $</span><ix:nonFraction name="ions:RevenueFromContractWithCustomerTransactionPrice" id="Fact_5d22f781b2fa41009a4196e97f84a1e7" contextRef="c20170228_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementAmendedInFebruary2017WithBayerMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">75</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million transaction price to these performance obligations. Refer to Note 6, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span>in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020&#xA0;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">for further discussion of the Bayer collaboration.</span></div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Multiple agreements</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">From time to time, we may enter into separate agreements at or near the same time with the same partner. We evaluate such agreements to determine whether we should account for them individually as distinct arrangements or whether the separate agreements should be combined and accounted for together. We evaluate the following to determine the accounting for the agreements:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the agreements were negotiated together with a single objective;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the amount of consideration in one contract depends on the price or performance of the other agreement; or</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the goods and/or services promised under the agreements are a single performance obligation.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our evaluation involves significant judgment to determine whether a group of agreements might be so closely related that accounting guidance requires us to account for them as a combined arrangement.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, in the second quarter of 2018, we entered into <ix:nonFraction name="ions:NumberOfAgreementsWithCollaborationPartner" id="Fact_c0d9a811936e47c2b113f70412abe1a4" contextRef="c20180401to20180630_MajorCustomersAxis_BiogenIncMember" unitRef="U006" decimals="INF" scale="0" format="ixt-sec:numwordsen">two</ix:nonFraction> separate agreements with Biogen at the same time: a new strategic neurology collaboration agreement and a stock purchase agreement, or SPA. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We evaluated the Biogen agreements to determine whether we should treat the agreements separately or combine them. We considered that the agreements were negotiated concurrently and in contemplation of one another. Based on these facts and circumstances, we concluded that we should evaluate the provisions of the agreements on a combined basis. </span></div>
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<div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Contracts Receivable</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Our contracts receivable balance represents the amounts we have billed our partners or customers and that are due to us unconditionally for goods we have delivered or services we have performed. When we bill our partners or customers with payment terms based on the passage of time, we consider the contracts receivable to be unconditional. We typically receive payment within </span><span style="-sec-ix-hidden:Fact_cb46feec840d4d05b86df2a2af3b44c3">one quarter</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> of billing our partner or customer</span>.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As of September 30, 2021, approximately <ix:nonFraction name="us-gaap:ConcentrationRiskPercentage1" id="Fact_ddb9c9779caa4c7ba7a8628627b81f91" contextRef="c20210101to20210930_ConcentrationRiskByBenchmarkAxis_AccountsReceivableMember_ConcentrationRiskByTypeAxis_CreditConcentrationRiskMember_MajorCustomersAxis_ThreeSignificantCustomersMember" unitRef="U003" decimals="3" scale="-2" format="ixt:numdotdecimal">58.3</ix:nonFraction> percent of our contracts receivables were from <ix:nonFraction name="ions:NumberOfSignificantCustomers" id="Fact_1a88c8e3635d4a64afd7542090bb8bb4" contextRef="c20210101to20210930" unitRef="U007" decimals="INF" scale="0" format="ixt-sec:numwordsen">three</ix:nonFraction> significant customers. As of December 31, 2020, approximately <ix:nonFraction name="us-gaap:ConcentrationRiskPercentage1" id="Fact_2797753f496a4c3a9e250ecbc9db8bec" contextRef="c20200101to20201231_ConcentrationRiskByBenchmarkAxis_AccountsReceivableMember_ConcentrationRiskByTypeAxis_CreditConcentrationRiskMember_MajorCustomersAxis_TwoSignificantCustomersMember" unitRef="U003" decimals="3" scale="-2" format="ixt:numdotdecimal">99.5</ix:nonFraction> percent of our contracts receivables were from <ix:nonFraction name="ions:NumberOfSignificantCustomers" id="Fact_61c499808edf4f65970284a4fd7b4782" contextRef="c20200101to20201231" unitRef="U007" decimals="INF" scale="0" format="ixt-sec:numwordsen">two</ix:nonFraction> significant customers.</div>
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<div style="text-align: justify; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Unbilled SPINRAZA Royalties</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our unbilled SPINRAZA royalties represent our right to receive consideration from Biogen in advance of when we are eligible to bill Biogen for SPINRAZA royalties. We include these unbilled amounts in other current assets on our condensed consolidated balance sheet.</div>
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<div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Deferred Revenue</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We are often entitled to bill our customers and receive payment from our customers in advance of our obligation to provide services or transfer goods to our partners. In these instances, we include the amounts in deferred revenue on our condensed consolidated balance sheet.</span> During the three months ended&#xA0;September 30, 2021 and 2020, we recognized $<ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" id="Fact_a6fb915664d048758471b4263bdbfedd" contextRef="c20210701to20210930" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">21.1</ix:nonFraction> million and $<ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" id="Fact_8467a8264e824b68904b44a564361380" contextRef="c20200701to20200930" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">22.5</ix:nonFraction> million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">During the </span>nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#xA0;</span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, we recognized $</span><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" id="Fact_5f0eaf8c9d8c408da05cc1e442f052d3" contextRef="c20210101to20210930" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">71.9</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million and $</span><ix:nonFraction name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" id="Fact_51a5fbfebaa247199fd1c1ee337783af" contextRef="c20200101to20200930" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">84.1</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. </span>For further discussion, refer to our revenue recognition policy above.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Cost of Sales</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our cost of sales includes manufacturing costs, transportation and freight costs and indirect overhead costs associated with the manufacturing and distribution of our products. We also may include certain period costs related to manufacturing services and inventory adjustments in cost of sales. </div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Cash, Cash Equivalents and Investments</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We consider all liquid investments with maturities of three months or less when we purchase them to be cash equivalents. Our short-term investments have initial maturities of greater than three months from date of purchase. We classify our short-term debt investments as &#8220;available-for-sale&#8221; and carry them at fair market value based upon prices on the last day of the fiscal period for identical or similar items. We record unrealized gains and losses on debt securities as a separate component of comprehensive income (loss) and include net realized gains and losses in gain (loss) on investments in our condensed consolidated statement of operations. We use the specific identification method to determine the cost of securities sold.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>14</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We also have equity investments of less than 20 percent ownership in publicly and privately held biotechnology companies that we received as part of a technology license or partner agreement. At September 30, 2021, we held equity investments in <ix:nonFraction name="ions:NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment" id="Fact_8037e90f29fb43ae9797ff009a688387" contextRef="c20210930" unitRef="U008" decimals="INF" scale="0" format="ixt-sec:numwordsen">three</ix:nonFraction> publicly held companies, Antisense Therapeutics Limited, or ATL, Bicycle Therapeutics plc, or Bicycle, and ProQR Therapeutics N.V., or ProQR. We also held equity investments in <ix:nonFraction name="ions:NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment" id="Fact_e003aeab75174162b833cf14b3a44106" contextRef="c20210930" unitRef="U008" decimals="INF" scale="0" format="ixt-sec:numwordsen">seven</ix:nonFraction> privately held companies, Aro Biotherapeutics, Atlantic Pharmaceuticals Limited, Dynacure SAS, Empirico, Inc., Flamingo Therapeutics BV, YourBio Health, Inc. (formerly Seventh Sense Biosystems) and Suzhou-Ribo Life Science Co, Ltd.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are required to measure and record our equity investments at fair value and to recognize the changes in fair value in our condensed consolidated statement of operations. We account for our equity investments in privately held companies at their cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. For example, during the second and fourth quarters of 2020, we revalued our investments in <ix:nonFraction name="ions:NumberOfInvestmentsInPrivatelyHeldCompaniesThatWereRevalued" id="Fact_1d052d9ce42e45d89c9a5e9b00144f66" contextRef="c20200401to20201231" unitRef="U009" decimals="INF" scale="0" format="ixt-sec:numwordsen">three</ix:nonFraction> privately held companies, Dynacure, Suzhou-Ribo and Aro Biotherapeutics because the companies sold additional equity securities that were similar to the equity we own. These observable price changes resulted in us recognizing a $<ix:nonFraction name="us-gaap:GainLossOnInvestments" id="Fact_db63fed8d9ef462ba313eb95dec39cc7" contextRef="c20200401to20201231_FinancialInstrumentAxis_DynacureSasMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">6.3</ix:nonFraction> million gain on our investment in Dynacure, a $<ix:nonFraction name="us-gaap:GainLossOnInvestments" id="Fact_4c7cacc292da45b4b4d1f5ac19e9efcb" contextRef="c20200401to20201231_FinancialInstrumentAxis_SuzhouRiboLifeScienceCoLtdMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">3.0</ix:nonFraction> million gain on our investment in Suzhou-Ribo and a $<ix:nonFraction name="us-gaap:GainLossOnInvestments" id="Fact_70661b1998e04974912c20ed82ebb966" contextRef="c20200401to20201231_FinancialInstrumentAxis_AroBiotherapeuticsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">5.5</ix:nonFraction> million gain on our investment in Aro Biotherapeutics in our condensed consolidated statement of operations during 2020 because the sales were at higher prices compared to our recorded value.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Inventory Valuation</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We reflect our inventory on our condensed consolidated balance sheet at the lower of cost or net realizable value under the first-in, first-out method, or FIFO. We capitalize the costs of raw materials that we purchase for use in producing our medicines because until we use these raw materials, they have alternative future uses, which we refer to as clinical raw materials. We include in inventory raw material costs for medicines that we manufacture for our partners under contractual terms and that we use primarily in our clinical development activities and drug products. We can use each of our raw materials in multiple products and, as a result, each raw material has future economic value independent of the development status of any single medicine. For example, if one of our medicines failed, we could use the raw materials for that medicine to manufacture our other medicines. We expense these costs as R&amp;D expenses when we begin to manufacture API for a particular medicine if the medicine has not been approved for marketing by a regulatory agency. Our raw materials- commercial inventory includes API for our commercial medicines. We capitalize material, labor and overhead costs as part of our raw materials- commercial inventory.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We obtained the first regulatory approval for TEGSEDI in July 2018 and for WAYLIVRA in May 2019. At September 30, 2021, our physical inventory for TEGSEDI and WAYLIVRA included API that we produced prior to when we obtained regulatory approval. As such, this API has no cost basis as we had previously expensed the costs as R&amp;D expenses.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We review our inventory periodically and reduce the carrying value of items we consider to be slow moving or obsolete to their estimated net realizable value based on forecasted demand compared to quantities on hand. We consider several factors in estimating the net realizable value, including shelf life of our inventory, alternative uses for our medicines in development and historical write-offs. For the nine months ended&#xA0;September 30, 2021 and 2020, we recorded an immaterial amount of inventory write-offs.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our inventory consisted of the following (in thousands):</div>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:InventoryFinishedGoods" id="Fact_70a3a016ecb849cd9021230823cf224d" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">3,005</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; width: 76%; padding-bottom: 4px;"><div style="text-align: justify; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total inventory</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:InventoryNet" id="Fact_6f6a7ebaae1b4d95ace7fcfcf1fba210" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">22,930</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:InventoryNet" id="Fact_3e4c02edf53745679ae7e698216e7837" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">21,965</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We determine if an arrangement contains a lease at inception. We currently only have operating leases. We recognize a right-of-use operating lease asset and associated short- and long-term operating lease liability on our condensed consolidated balance sheet for operating leases greater than one year. Our right-of-use assets represent our right to use an underlying asset for the lease term and our lease liabilities represent our obligation to make lease payments arising from the lease arrangement. We recognize our right-of-use operating lease assets and lease liabilities based on the present value of the future minimum lease payments we will pay over the lease term. We determine the lease term at the inception of each lease, and in certain cases our lease term could include renewal options if we concluded we were reasonably certain that we will exercise the renewal option. When we exercise a lease option that was not previously included in the initial lease term, we reassess our right-of-use asset and lease liabilities for the new lease term.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As our current leases do not provide an interest rate implicit in the lease, we used our incremental borrowing rate, based on the information available on the date we adopted Topic 842 (January 2019), as of the lease inception date or at the lease option extension date in determining the present value of future payments. We recognize rent expense for our minimum lease payments on a straight-line basis over the expected term of our lease. We recognize period expenses, such as common area maintenance expenses, in the period we incur the expense.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In September 2021, we entered into an operating lease agreement for office space located in Boston, Massachusetts. We determined that the lease commencement date is the date in which the space is ready for our occupancy, which we expect will be in the fourth quarter of 2021. </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We are leasing this space under a non-cancelable operating lease with an initial term ending </span><ix:nonNumeric name="us-gaap:LesseeOperatingLeaseTermOfContract" id="Fact_ebc0dcab157845e3aa9c4dd6f5db0c5e" contextRef="c20210930_PropertyPlantAndEquipmentByTypeAxis_BuildingMember" format="ixt-sec:durmonth">91</ix:nonNumeric><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> months following the lease commencement date and an option to extend the lease for an additional </span><ix:nonNumeric name="us-gaap:LesseeOperatingLeaseRenewalTerm" id="Fact_de98a8c5b77a4ba1a8b3e6ddfcf68209" contextRef="c20210930_PropertyPlantAndEquipmentByTypeAxis_BuildingMember" format="ixt-sec:durwordsen">five-year</ix:nonNumeric><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> term. Under the lease agreement, we will receive a </span><ix:nonNumeric name="ions:LesseeOperatingLeaseFreeRentPeriod" id="Fact_0275138594624bfaab5a87b2a241e309" contextRef="c20210101to20210930_PropertyPlantAndEquipmentByTypeAxis_BuildingMember" format="ixt-sec:durwordsen">seven-month</ix:nonNumeric><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> free rent period, which will commence on the lease commencement date. Our lease payments over the initial term total $</span><ix:nonFraction name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue" id="Fact_15a6a1a451574b6b934f79a4416b0c7d" contextRef="c20210930_PropertyPlantAndEquipmentByTypeAxis_BuildingMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">6.8</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million. We will recognize a right-of-use lease asset and lease liability in the fourth quarter of 2021 upon the lease commencement date. Since we did not have the right to occupy the premises as of September 30, 2021, there was no accounting impact in the third quarter.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our research and development expenses include wages, benefits, facilities, supplies, external services, clinical trial and manufacturing costs and other expenses that are directly related to our research and development operations. We expense research and development costs as we incur them. When we make payments for research and development services prior to the services being rendered, we record those amounts as prepaid assets on our condensed consolidated balance sheet and we expense them as the services are provided.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We capitalize costs consisting principally of outside legal costs and filing fees related to obtaining patents. We amortize patent costs over the useful life of the patent, beginning with the date the U.S. Patent and Trademark Office, or foreign equivalent, issues the patent. </span>We review our capitalized patent costs regularly to ensure that they include costs for patents and patent applications that have future value. When we identify patents and patent applications that we are not actively pursuing, we write off any associated costs<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We account for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In addition, deferred tax assets are recorded for the future benefit of utilizing net operating losses and research and development credit carryforwards. We record a valuation allowance when necessary to reduce our net deferred tax assets to the amount we expect to realize.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We evaluate our deferred tax assets regularly to determine whether adjustments to the valuation allowance are appropriate due to changes in facts or circumstances, such as changes in expected future pre-tax earnings, tax law, interactions with taxing authorities and developments in case law. In making this evaluation, we rely on our recent history of pre-tax earnings. Our material assumptions are our forecasts of future pre-tax earnings and the nature and timing of future deductions and income represented by the deferred tax assets and liabilities, all of which involve the exercise of significant judgment.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We assessed our valuation allowance requirements and recorded a valuation allowance against all of Ionis&#8217; U.S. federal net deferred tax assets in the fourth quarter of 2020, due to uncertainties related to our ability to realize the tax benefits associated with these assets. We based our determination largely on Akcea rejoining the Ionis U.S. consolidated federal tax group in the fourth quarter of 2020. Due to Akcea&#8217;s historical and projected financial statement losses, and the negative impact we expect this to have on Ionis&#8217; consolidated taxable income, there is uncertainty of generating sufficient consolidated pre-tax income in future periods to realize the Ionis deferred tax benefits. We also expect that Ionis&#8217; pre-tax income in future periods may be lower due to increased research and development expenses associated with our pipeline of wholly owned medicines. We continue to maintain a valuation allowance against all our consolidated U.S. federal and state net deferred tax assets.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Long-lived Assets</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We evaluate long-lived assets, which include property, plant and equipment and patent costs, for impairment on at least a quarterly basis and whenever events or changes in circumstances indicate that we may not be able to recover the carrying amount of such assets.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Use of Estimates</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We prepare our condensed consolidated financial statements in conformity with accounting principles generally accepted in the </span>U.S. that require us to make estimates and assumptions that affect the amounts reported in our condensed consolidated financial statements and accompanying notes. Actual results could differ from our estimates.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic and Diluted Net Loss Per Share</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Basic net loss per share</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the three and nine months ended&#xA0;September 30, 2021 by dividing our net loss by our weighted-average number of common shares outstanding during the period. For the first nine months of 2021, we did not have to consider Akcea results separately in our calculation because we owned <ix:nonFraction name="us-gaap:MinorityInterestOwnershipPercentageByParent" id="Fact_13943e6576ca415a83b7d65c86a49bff" contextRef="c20210930_OwnershipAxis_AkceaTherapeuticsIncMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">100</ix:nonFraction> percent of Akcea for the entire period. Our basic net loss per share for the three and nine months ended September 30, 2021 was $<ix:nonFraction name="us-gaap:EarningsPerShareBasic" id="Fact_aab817918ee7462eafc4e0247e0ea5c8" contextRef="c20210701to20210930" unitRef="U004" decimals="2" sign="-" scale="0" format="ixt:numdotdecimal">0.58</ix:nonFraction> and $<ix:nonFraction name="us-gaap:EarningsPerShareBasic" id="Fact_61b85f922d4f4d538dbebcaac8baaa55" contextRef="c20210101to20210930" unitRef="U004" decimals="2" sign="-" scale="0" format="ixt:numdotdecimal">1.80</ix:nonFraction>, respectively.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In the third quarter of 2020, prior to the Akcea Merger, we calculated our basic net loss per share for the three and nine months ended&#xA0;September 30, 2020 by calculating our net loss for Ionis on a stand-alone basis plus our share of Akcea&#8217;s net loss for the period to determine our total net loss attributable to our common stockholders. To calculate the portion of Akcea&#8217;s net loss attributable to our ownership, we multiplied Akcea&#8217;s net loss per share by the weighted average shares we owned in Akcea during the period. As a result of this calculation, our total net loss available to Ionis common stockholders for the calculation of net loss per share is different than our net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders in the condensed consolidated statements of operations.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the three months ended September 30, 2020 as follows (in thousands, except per share amounts):</div>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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</ix:continuation></ix:continuation></ix:continuation><ix:continuation id="Text_a838c16397fe42809cbf730b7587011d3" continuedAt="Text_a838c16397fe42809cbf730b7587011d4"><ix:continuation id="Text_28e70739ca474e7fa54b44587f6e924c11" continuedAt="Text_28e70739ca474e7fa54b44587f6e924c12"><ix:continuation id="Text_3165b5b7299e467ea88fe36bd1114513223" continuedAt="Text_3165b5b7299e467ea88fe36bd1114513224">
<div><br /></div>
</ix:continuation></ix:continuation></ix:continuation><ix:continuation id="Text_a838c16397fe42809cbf730b7587011d4" continuedAt="Text_a838c16397fe42809cbf730b7587011d5"><ix:continuation id="Text_28e70739ca474e7fa54b44587f6e924c12" continuedAt="Text_28e70739ca474e7fa54b44587f6e924c13"><ix:continuation id="Text_3165b5b7299e467ea88fe36bd1114513224" continuedAt="Text_3165b5b7299e467ea88fe36bd1114513225">
<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#xA0;</span>September 30, 2020 as follows (in thousands, except per share amounts):</div>
</ix:continuation></ix:continuation></ix:continuation><ix:continuation id="Text_a838c16397fe42809cbf730b7587011d5" continuedAt="Text_a838c16397fe42809cbf730b7587011d6"><ix:continuation id="Text_28e70739ca474e7fa54b44587f6e924c13" continuedAt="Text_28e70739ca474e7fa54b44587f6e924c14"><ix:continuation id="Text_3165b5b7299e467ea88fe36bd1114513225" continuedAt="Text_3165b5b7299e467ea88fe36bd1114513226">
<div><br /></div>
</ix:continuation></ix:continuation></ix:continuation><ix:continuation id="Text_a838c16397fe42809cbf730b7587011d6" continuedAt="Text_a838c16397fe42809cbf730b7587011d7"><ix:continuation id="Text_28e70739ca474e7fa54b44587f6e924c14" continuedAt="Text_28e70739ca474e7fa54b44587f6e924c15"><ix:continuation id="Text_3165b5b7299e467ea88fe36bd1114513226" continuedAt="Text_3165b5b7299e467ea88fe36bd1114513227">
<table cellpadding="0" cellspacing="0" id="z829b7fd73abe4d0c8c02eb55723b4acb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%;"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Akcea&#8217;s net loss attributable to our ownership</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; stand-alone net income</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:NetIncomeLoss" id="Fact_fe81f96af8d64d43aa22c9e8898d3879" contextRef="c20200101to20200930_StatementBusinessSegmentsAxis_IonisCoreMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">18,235</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss available to Ionis common stockholders</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic" id="Fact_7fc30ef6106c4f99b6f1d86ceb042c8b" contextRef="c20200101to20200930" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">89,941</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
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    <td valign="bottom" style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Weighted average shares outstanding</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" id="Fact_6c28a82b0628460eb97a165705793181" contextRef="c20200101to20200930" unitRef="U001" decimals="-3" scale="3" format="ixt:numdotdecimal">139,497</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%; padding-bottom: 4px;"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic net loss per share</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:EarningsPerShareBasic" id="Fact_d812881305f747cb8ebb3e5bc9b3e57f" contextRef="c20200101to20200930" unitRef="U004" decimals="2" sign="-" scale="0" format="ixt:numdotdecimal">0.64</ix:nonFraction></div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z729f964a8a84426883f8b1deee9b51f1">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>17</span></div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Diluted net loss per share</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the three and nine months ended&#xA0;September 30, 2021 and 2020, we incurred a net loss; therefore, we did not include dilutive common equivalent shares in the computation of diluted net loss per share because the effect would have been anti-dilutive. Common stock from the following would have had an anti-dilutive effect on net loss per share:</div>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_e04081c13bbe48d3bb9b3d0cca81d860" contextRef="c20200930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_eccc4161cecb4e0e9bd2f79ccde27795" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction></ix:nonFraction> percent convertible senior notes, or <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_2d011315162b43398edc4d43f61dfe90" contextRef="c20200930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_040223863f694143aeafc77acbcabb62" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction></ix:nonFraction>% Notes;</div></td>
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  <tr>
    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Note hedges related to the <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_00ed48c13a3e41a59f57e78e32a2e336" contextRef="c20200930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_5765a5913d9b40179d92f2285226cd54" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction></ix:nonFraction>% Notes;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z59e22ca8a35544a79ebbedf7c6346417">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_2c91e3dbf4c247db8bb02e5a71a288f5" contextRef="c20200930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_85a6f8e5d22944cab33b8c94b685e2ff" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction></ix:nonFraction> percent convertible senior notes, or <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_29da08684780446a9af06d1ccf34f0cf" contextRef="c20200930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_8680389508fd4e4d989957a2899f1991" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction></ix:nonFraction>% Notes;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z539f9c2b28eb4676a4b27d0fbf14f0cb">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dilutive stock options;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z7a3ed3c754f540b493056e2df93ae913">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unvested restricted stock units, or RSUs;</div></td>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unvested performance restricted stock units, or PRSUs; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Employee Stock Purchase Plan, or ESPP.</div></td>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the three and nine months ended&#xA0;September 30, 2021, common stock from the following would also have had an anti-dilutive effect on net loss per share:</div>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_acf69492fc724c92b962b1e11e2eaa4d" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction> percent convertible senior notes, or <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_0a206797b8c743759065e28eac72a546" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes; and</div></td>
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    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Note hedges related to the <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_f1a39fa9afdb444ca040fa8fd4e57b4a" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additionally as of September 30, 2021, we had warrants related to our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_2ad3f2367557405a8c6d2324e912a59a" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% and <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_abddc1cdda9749a6b8af5dd8ac5eb3c8" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes outstanding. We will include the shares issuable under these warrants in our calculation of diluted earnings per share when the average market price per share of our common stock for the reporting period exceeds the strike price of the warrants.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Convertible Debt</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Adoption of ASU 2020-06</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In August 2020, the FASB issued ASU 2020-06, which simplifies</span> the accounting for convertible debt instruments<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, amends the guidance on derivative scope exceptions for contracts in an entity&#8217;s own equity, and modifies the guidance on diluted earnings per share calculations. We adopted ASU 2020-06 on January 1, 2021 under the full retrospective approach, which required us to revise our prior period financial statements. This guidance impacted our accounting for outstanding convertible debt. At January 1, 2021, we had </span><ix:nonFraction name="ions:DebtInstrumentNumberOfConvertibleNotes" id="Fact_feca9c31aa8246a4bebd7d1ae9c28967" contextRef="c20210930" unitRef="U010" decimals="INF" scale="0" format="ixt-sec:numwordsen">two</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> outstanding convertible notes, our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_6df698f4de8b432ebbeb7cd454cebc09" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes, which mature in December 2024, and our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_90499cc2339b43db9ba672cad9902593" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes, which mature in November 2021. In April 2021, we completed a $</span><ix:nonFraction name="us-gaap:DebtInstrumentFaceAmount" id="Fact_0bb87b712f7e4635a04dfd6f1efd9ba4" contextRef="c20210430_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">632.5</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million offering of </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_86cb2192e9474434a9cdba865ffcb45a" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes primarily to repurchase a majority of our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_d9a9b5ccd2e241aea3049d8912578267" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes. We accounted for our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_4b3e2efa837e43aca813ae5a58a76e2e" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes under ASU 2020-06 at issuance. Refer to Note 6, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Convertible Debt</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, for further information.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The updated guidance eliminates the cash conversion accounting model we previously followed in Accounting Standard Codification, or ASC, 470-20, which required us to separate each of our convertible debt instruments at issuance into two units of accounting, a liability component, based on our nonconvertible debt borrowing rate at issuance, and an equity component. Under ASU 2020-06, we now account for each of our convertible debt instruments as a single unit of accounting, a liability, because we concluded that the conversion features do not require bifurcation as a derivative under ASC 815-15 and our convertible debt instruments were not issued at a substantial premium. Since we adopted ASU 2020-06 using the full retrospective approach, we were required to apply the guidance to all convertible debt instruments we had outstanding as of January 1, 2019. We recomputed the basis of each convertible debt instrument as if we accounted for each as a single unit of accounting at issuance. This update included recalculating the amortization of debt issuance costs using an updated effective interest rate. As a result of adopting ASU 2020-06, we recorded a cumulative adjustment to decrease our additional paid in capital and our accumulated deficit at January 1, 2019. We have updated these financial statements to reflect the cumulative adjustment for the periods presented. We have labeled our prior period financial statements &#8220;as revised&#8221; to indicate the change required under the new accounting guidance. Below is a summary of the change in our balance sheet at December 31, 2020 and statement of operations from the three and nine months ended&#xA0;September 30, 2020 under the ASC 470-20 legacy guidance compared to the new ASU 2020-06 guidance we adopted:</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the adjustments we made to the condensed consolidated balance sheet we originally reported at December 31, 2020 to adopt ASU 2020-06 (in thousands):</div>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under ASU 2020-06, our revised ending balances for our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_53d5707cc0fc4da9a17647ff9964271b" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes and <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_6ea99ebfe6ac4e35a3bd9a5e68d9c561" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes as of December 31, 2020 represent the principal balance of each convertible debt instrument less debt issuance costs. Additionally, because we have deferred tax assets related to our convertible debt instruments, we also adjusted these amounts as part of our adoption of ASU 2020-06. However, because we have a full valuation allowance on our deferred tax assets, there was <ix:nonFraction name="us-gaap:DeferredIncomeTaxAssetsNet" id="Fact_7bc51642648e4faea1beb838bbfe5b86" contextRef="c20201231_AdjustmentsForNewAccountingPronouncementsAxis_AccountingStandardsUpdate202006Member_RestatementAxis_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" unitRef="U002" decimals="-3" scale="3" format="ixt-sec:numwordsen">no</ix:nonFraction> impact to our condensed consolidated balance sheet related to our deferred tax assets.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following tables summarize the adjustments we made to the condensed consolidated statement of operations we originally reported for the three and nine months ended&#xA0;September 30, 2020 to adopt ASU 2020-06 (in thousands):</div>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:InterestExpense" id="Fact_af5d65dbbd2045b79080b2f435019bfb" contextRef="c20200701to20200930_RestatementAxis_ScenarioPreviouslyReportedMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">11,321</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:InterestExpense" id="Fact_1a6d4ffbad614d0bbbc3ea7913cc8139" contextRef="c20200701to20200930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,428</ix:nonFraction></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss before income tax expense</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income tax expense</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:IncomeTaxExpenseBenefit" id="Fact_01f3f73df1284f1eb5784541666a6508" contextRef="c20200701to20200930_RestatementAxis_ScenarioPreviouslyReportedMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,648</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:IncomeTaxExpenseBenefit" id="Fact_ca1e1f4d7a1e4fd78686f1227702e809" contextRef="c20200701to20200930_AdjustmentsForNewAccountingPronouncementsAxis_AccountingStandardsUpdate202006Member_RestatementAxis_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,416</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
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<div><br /></div>
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<table cellpadding="0" cellspacing="0" id="z2f5855359501402b9fbfba586eb0b9b9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
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    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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  <tr>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:InterestExpense" id="Fact_f4de743095ce4b4187436b820237e4cf" contextRef="c20200101to20200930_RestatementAxis_ScenarioPreviouslyReportedMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">33,484</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss before income tax benefit (expense)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income tax benefit (expense)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic and diluted net loss per share</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:EarningsPerShareDiluted" id="Fact_adfc11c5a81e4ae5a67cc4a3998032ad" contextRef="c20200101to20200930_RestatementAxis_ScenarioPreviouslyReportedMember" unitRef="U004" decimals="2" sign="-" scale="0" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:EarningsPerShareBasic" id="Fact_6a536b8e661443a4965c228a126f806b" contextRef="c20200101to20200930_RestatementAxis_ScenarioPreviouslyReportedMember" unitRef="U004" decimals="2" sign="-" scale="0" format="ixt:numdotdecimal">0.80</ix:nonFraction></ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EarningsPerShareDiluted" id="Fact_642eae4d1a99477598361deb73621340" contextRef="c20200101to20200930_AdjustmentsForNewAccountingPronouncementsAxis_AccountingStandardsUpdate202006Member_RestatementAxis_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:EarningsPerShareBasic" id="Fact_9e9c598f05cf4daa99569d14542d9215" contextRef="c20200101to20200930_AdjustmentsForNewAccountingPronouncementsAxis_AccountingStandardsUpdate202006Member_RestatementAxis_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">0.16</ix:nonFraction></ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:EarningsPerShareDiluted" id="Fact_e40d720448814fb480117c88d940d23e" contextRef="c20200101to20200930" unitRef="U004" decimals="2" sign="-" scale="0" format="ixt:numdotdecimal"><ix:nonFraction name="us-gaap:EarningsPerShareBasic" id="Fact_abc6941baa6345948fbb2bab907aa9f5" contextRef="c20200101to20200930" unitRef="U004" decimals="2" sign="-" scale="0" format="ixt:numdotdecimal">0.64</ix:nonFraction></ix:nonFraction></div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under ASU 2020-06, our revised interest expense is lower because we are no longer recording non-cash interest expense related to a debt discount. This decrease was partially offset by the increase in interest expense related to the amortization of debt issuance costs because we no longer allocate a portion of our debt issuance costs to stockholders&#8217; equity at issuance. Instead, the entire debt issuance costs were recorded as a contra-liability on our condensed consolidated balance sheet at issuance and we are amortizing them over the contractual term using an updated effective interest rate. Our updated effective interest rates for our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_75e35b87dc90426cac3e1c34a422a276" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes and <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_84a6218ff6e54d3b8f561b2b2ebbd72f" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes were <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateEffectivePercentage" id="Fact_7633d12dfa8442d8a4437aeea1756c96" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="3" scale="-2" format="ixt:numdotdecimal">1.4</ix:nonFraction> percent and <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateEffectivePercentage" id="Fact_92c0796756f644e590bfc328a74e9974" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="3" scale="-2" format="ixt:numdotdecimal">0.5</ix:nonFraction> percent, respectively.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>19</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following tables summarize the adjustments we made to our condensed consolidated statements of stockholders&#8217; equity we originally reported at December 31, 2020 and 2019 to adopt ASU 2020-06 (in thousands):</div>
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<table cellpadding="0" cellspacing="0" id="z5aeb3ee1a3364575838aa3c32258a09d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
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    <td colspan="10" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_0b6ab93303a845b88a28c8c630d82b4e" contextRef="c20201231_StatementEquityComponentsAxis_AdditionalPaidInCapitalMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,895,519</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 64%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" id="Fact_fd8d539202b546e9ab9cdddf775db90f" contextRef="c20201231_RestatementAxis_ScenarioPreviouslyReportedMember_StatementEquityComponentsAxis_RetainedEarningsMember" unitRef="U002" decimals="-3" scale="3" sign="-" format="ixt:numdotdecimal">1,249,368</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Call Spread</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In conjunction with the issuance of our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_2de199144db84606922afa28c32d16ec" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes and <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_f0716a76728945aeacfc77c73b2d1ec7" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes in April 2021 and December 2019, respectively, we entered into call spread transactions, which were comprised of purchasing note hedges and selling warrants. We account for the note hedges and warrants as separate freestanding financial instruments and treat each instrument as a separate unit of accounting. We determined that the note hedges and warrants do not meet the definition of a liability using the guidance contained in ASC Topic 480, therefore we account for the note hedges and warrants using the Derivatives and Hedging &#8211; Contracts in Entity&#8217;s Own Equity accounting guidance contained in ASC Topic 815. We determined that the note hedges and warrants meet the definition of a derivative, are indexed to our stock and meet the criteria to be classified in shareholders&#8217; equity. We recorded the aggregate amount paid for the note hedges and the aggregate amount received for the warrants as additional paid-in capital in our condensed consolidated balance sheet. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#8217; equity at each reporting period.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Segment Information</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In 2021, we began operating as a single segment, Ionis operations, because our chief decision maker reviews operating results on an aggregate basis and manages our operations as a single operating segment. Previously, we had operated as <ix:nonFraction name="us-gaap:NumberOfOperatingSegments" id="Fact_56f94f7bab79457e9475cbf5fff3ef54" contextRef="c20210101to20210930" unitRef="U011" decimals="INF" scale="0" format="ixt-sec:numwordsen">two</ix:nonFraction> operating segments, Ionis Core and Akcea Therapeutics. We completed the Akcea Merger in October 2020 and fully integrated Akcea&#8217;s operations into ours as of January 1, 2021.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Stock-based Compensation Expense</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We measure stock-based compensation expense for equity-classified awards, principally related to stock options, RSUs, PRSUs and stock purchase rights under our ESPP based on the estimated fair value of the award on the date of grant. We recognize the value of the portion of the award that we ultimately expect to vest as stock-based compensation expense over the requisite service period in our condensed consolidated statements of operations. We reduce stock-based compensation expense for estimated forfeitures at the time of grant and revise in subsequent periods if actual forfeitures differ from those estimates. We use the Black-Scholes model to estimate the fair value of stock options granted and stock purchase rights under our ESPP.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">On the grant date, we use our stock price and assumptions regarding a number of variables to determine the estimated fair value of stock-based payment awards. These variables include, but are not limited to, our expected stock price volatility over the term of the awards, and actual and projected employee stock option exercise behaviors.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize compensation expense for stock options granted, RSUs, PRSUs and stock purchase rights under the ESPP using the accelerated multiple-option approach. Under the accelerated multiple-option approach (also known as the graded-vesting method), we recognize compensation expense over the requisite service period for each separately vesting tranche of the award as though the award were in substance multiple awards, which results in the expense being front-loaded over the vesting period.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we amended and restated the Akcea 2015 equity plan, including renaming the plan as the Ionis Pharmaceuticals, Inc. 2020 Equity Incentive Plan, or 2020 Plan. As a result, all employees are now under an Ionis stock plan and subject to the same Black-Scholes assumptions.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>20</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the nine months ended&#xA0;September 30, 2021 and 2020, we used the following weighted-average assumptions in our Black-Scholes calculations:</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Employee Stock Options:</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Ionis Board of Director Stock Options:</div>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">ESPP:</div>
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  <tr>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br /></div>
</ix:continuation></ix:continuation><ix:continuation id="Text_b4712a5f94e446d094d5e0dc5979034621" continuedAt="Text_b4712a5f94e446d094d5e0dc5979034622"><ix:continuation id="Text_3165b5b7299e467ea88fe36bd1114513306" continuedAt="Text_3165b5b7299e467ea88fe36bd1114513307">
<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">RSU&#8217;s:</div>
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<div><br /></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The fair value of RSUs is based on the market price of our common stock on the date of grant. The RSUs we have granted to employees vest annually over a <ix:nonNumeric name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="Fact_27893998ace24d7cb0e5fa8a728fcf92" contextRef="c20210101to20210930_AwardTypeAxis_RestrictedStockUnitsRSUMember_GranteeStatusAxis_ShareBasedPaymentArrangementEmployeeMember" format="ixt-sec:durwordsen">four-year</ix:nonNumeric> period. The RSUs we granted to our board of directors prior to June 2020 vest annually over a <ix:nonNumeric name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="Fact_0b9e4755a19545e988f3c011792dba0c" contextRef="c20210101to20210930_AwardTypeAxis_RestrictedStockUnitsRSUMember_GranteeStatusAxis_ShareBasedPaymentArrangementBoardOfDirectorMember_RangeAxis_MaximumMember" format="ixt-sec:durwordsen">four-year</ix:nonNumeric> period. RSUs granted after June 2020 to our board of directors fully vest after <ix:nonNumeric name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="Fact_6ad8053af26d4d419b4294b9cd273b8f" contextRef="c20210101to20210930_AwardTypeAxis_RestrictedStockUnitsRSUMember_GranteeStatusAxis_ShareBasedPaymentArrangementBoardOfDirectorMember_RangeAxis_MinimumMember" format="ixt-sec:durwordsen">one year</ix:nonNumeric>. The weighted-average grant date fair value of RSUs granted to employees and our board of directors for the nine months ended&#xA0;September 30, 2021 was $<ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" id="Fact_7654fd0b1d374d55b0c76914d3cd1ad7" contextRef="c20210101to20210930_AwardTypeAxis_RestrictedStockUnitsRSUMember_GranteeStatusAxis_ShareBasedPaymentArrangementEmployeeMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">59.15</ix:nonFraction> and $<ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" id="Fact_53cd36368c8649bc95a677825ddc025f" contextRef="c20210101to20210930_AwardTypeAxis_RestrictedStockUnitsRSUMember_GranteeStatusAxis_ShareBasedPaymentArrangementBoardOfDirectorMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">39.42</ix:nonFraction> per share, respectively.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">PRSU&#8217;s:</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning in 2020, we added PRSU awards to the compensation for our Chief Executive Officer, Dr. Brett Monia. Under the terms of the grants, <span style="-sec-ix-hidden:Fact_3ea144f70898401099a1731ad0c7e39f"><span style="-sec-ix-hidden:Fact_b531c97d5a394e3f8a5454ecd82ddb93"><span style="-sec-ix-hidden:Fact_b2b6dbe875764e78b9cce0b8464216dd">one third</span></span></span> of the PRSUs may vest at the end of <ix:nonFraction name="ions:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods" id="Fact_22182278d2c74c399b1aa1ec24dcb90a" contextRef="c20210101to20210930_AwardTypeAxis_PerformanceSharesMember_GranteeStatusAxis_ChiefExecutiveOfficerMember" unitRef="U012" decimals="INF" scale="0" format="ixt-sec:numwordsen">three</ix:nonFraction> separate performance periods spread over the <ix:nonNumeric name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="Fact_eaaa26558fcd4695b1458629faf19186" contextRef="c20210101to20210930_AwardTypeAxis_PerformanceSharesMember_GranteeStatusAxis_ChiefExecutiveOfficerMember" format="ixt-sec:durwordsen">three years</ix:nonNumeric> following the date of grant (i.e., the one-year period commencing on the date of grant and ending on the first anniversary of the date of grant; the two-year period commencing on the date of grant and ending on the second anniversary of the date of grant; and the three-year period commencing on the date of grant and ending on the third anniversary of the date of grant) based on our relative total shareholder return, or TSR, as compared to a peer group of companies, and as measured, in each case, at the end of the applicable performance period. Under the terms of the grants <ix:nonFraction name="ions:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest" id="Fact_a18106d46f494438a0e064c9f9a96fbd" contextRef="c20210101to20210930_AwardTypeAxis_PerformanceSharesMember_GranteeStatusAxis_ChiefExecutiveOfficerMember" unitRef="U001" decimals="INF" scale="0" format="ixt-sec:numwordsen">no</ix:nonFraction> number of PRSUs is guaranteed to vest and the actual number of PRSUs that will vest at the end of each performance period may be anywhere from <ix:nonFraction name="ions:ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest" id="Fact_2200a3292de944e78e0d6c8d840bacb1" contextRef="c20210101to20210930_AwardTypeAxis_PerformanceSharesMember_GranteeStatusAxis_ChiefExecutiveOfficerMember_RangeAxis_MinimumMember" unitRef="U003" decimals="INF" scale="-2" format="ixt-sec:numwordsen">zero </ix:nonFraction>percentto <ix:nonFraction name="ions:ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest" id="Fact_ce7480294faa46eab25c9b702916942c" contextRef="c20210101to20210930_AwardTypeAxis_PerformanceSharesMember_GranteeStatusAxis_ChiefExecutiveOfficerMember_RangeAxis_MaximumMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">150</ix:nonFraction> percent of the target number depending on our relative TSR.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We determined the fair value of Dr. Monia&#8217;s PRSUs using a Monte Carlo model because the performance target is based on our relative TSR, which represents a market condition. We are recognizing the grant date fair value of these awards as stock-based compensation expense using the accelerated multiple-option approach over the vesting period. The weighted-average grant date fair value of PRSUs granted to Dr. Monia for the nine months ended&#xA0;September 30, 2021 was $<ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" id="Fact_f686380f406d44659451af43ea4a98c6" contextRef="c20210101to20210930_AwardTypeAxis_PerformanceSharesMember_GranteeStatusAxis_ChiefExecutiveOfficerMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">77.17</ix:nonFraction> per share.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>21</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes stock-based compensation expense for the three and nine months ended&#xA0;September 30, 2021 and 2020 (in thousands).</div>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As of September 30, 2021, total unrecognized estimated non-cash stock-based compensation expense related to non-vested stock options, RSUs and PRSUs was $<ix:nonFraction name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" id="Fact_6ffe2ab146ea4bd888ad8a1bb3fc3738" contextRef="c20210930_AwardTypeAxis_EmployeeStockOptionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">65.3</ix:nonFraction> million, $<ix:nonFraction name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" id="Fact_221a3013ba19446cad9c335f9391fa1a" contextRef="c20210930_AwardTypeAxis_RestrictedStockUnitsRSUMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">72.2</ix:nonFraction> million and $<ix:nonFraction name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" id="Fact_1a5a87c9d0c04b5799a90b3d2965c63f" contextRef="c20210930_AwardTypeAxis_PerformanceSharesMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">2.5</ix:nonFraction> million, respectively. Our actual expenses may differ from these estimates because we will adjust our unrecognized non-cash stock-based compensation expense for future forfeitures. We expect to recognize the cost of non-cash stock-based compensation expense related to our non-vested stock options, RSUs and PRSUs over a weighted average amortization period of <ix:nonNumeric name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" id="Fact_13a68deb2d8d496a9b99b31f4abcfe12" contextRef="c20210101to20210930_AwardTypeAxis_EmployeeStockOptionMember" format="ixt-sec:duryear">1.2</ix:nonNumeric> years, <ix:nonNumeric name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" id="Fact_94356ff2a4564b669110ba6365630dc9" contextRef="c20210101to20210930_AwardTypeAxis_RestrictedStockUnitsRSUMember" format="ixt-sec:duryear">1.4</ix:nonNumeric> years and <ix:nonNumeric name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" id="Fact_715166969b8f40d5bb56857e5eca4ce6" contextRef="c20210101to20210930_AwardTypeAxis_PerformanceSharesMember" format="ixt-sec:duryear">1.2</ix:nonNumeric> years, respectively.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Amendments to Equity Plans</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">2020 Equity Incentive Plan</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In the second quarter of 2021, our Compensation Committee approved an amendment to the 2020 Plan. The amendment decreased the total number of shares of common stock authorized for issuance under the 2020 Plan from approximately <ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" id="Fact_c725ef99a0654fd099161ea69e8e3b7b" contextRef="c20210331_PlanNameAxis_EquityIncentivePlan2020Member" unitRef="U001" decimals="-5" scale="6" format="ixt:numdotdecimal">2.6</ix:nonFraction> million to <ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" id="Fact_1e7317698cde42ae8bcd303cc30d95b3" contextRef="c20210630_PlanNameAxis_EquityIncentivePlan2020Member" unitRef="U001" decimals="-5" scale="6" format="ixt:numdotdecimal">1.6</ix:nonFraction> million. We assumed the 2020 Plan in connection with Ionis&#8217; reacquisition of all of the outstanding shares of Akcea Therapeutics, Inc. as part of the Akcea Merger.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">2011 Equity Incentive Plan</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In the second quarter of 2021, after receiving approval from our stockholders, we amended our 2011<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Equity Incentive Plan, or 2011 Plan. The amendment increased the total number of shares of common stock authorized for issuance under the 2011 Plan from </span><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" id="Fact_19751977d6914fdeb8ae8fc8b3793956" contextRef="c20210331_PlanNameAxis_EquityIncentivePlan2011Member" unitRef="U001" decimals="-5" scale="6" format="ixt:numdotdecimal">23.0</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million to </span><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" id="Fact_1ae1d3a7b3684c05b0dd254ea676c1c1" contextRef="c20210630_PlanNameAxis_EquityIncentivePlan2011Member" unitRef="U001" decimals="-5" scale="6" format="ixt:numdotdecimal">29.7</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million and added a fungible share counting ratio whereby the share reserve will be reduced by </span><ix:nonFraction name="ions:IncreaseDecreaseInFungibleShareReserveForEachShareIssuedPursuantToFullValueAward" id="Fact_7544f5b62c3145299dcc93d45d3d4873" contextRef="c20210630_PlanNameAxis_EquityIncentivePlan2011Member" unitRef="U001" decimals="1" sign="-" scale="0" format="ixt:numdotdecimal">1.7</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> shares for each share of common stock issued pursuant to a full value award (i.e., RSU or PRSU) and increased by </span><ix:nonFraction name="ions:IncreaseDecreaseInFungibleShareReserveForEachShareReturningFromFullValueAward" id="Fact_be820ead4e68481cbf45eb7a1f887ed2" contextRef="c20210630_PlanNameAxis_EquityIncentivePlan2011Member" unitRef="U001" decimals="1" scale="0" format="ixt:numdotdecimal">1.7</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> shares for each share of common stock returning from a full value award.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Impact of Recently Issued Accounting Standards</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As disclosed in the &#8220;Convertible Debt&#8221; policy above within this footnote, we adopted the simplified accounting for convertible debt instrument guidance (ASU 2020-06) on January 1, 2021. Refer to the section above for the impact of adoption. We do not expect any other recently issued accounting standards to have a material impact to our financial results.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">3.&#160; Investments</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the contract maturity of the available-for-sale securities we held as of September 30, 2021:</div>
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<table cellpadding="0" cellspacing="0" id="z7875b171477b495f9658297c72093cc6" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage" id="Fact_b3c2ee50dd694d208197df43360458a9" contextRef="c20210930" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">26</ix:nonFraction></div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">After <span style="text-indent: 0pt;"><ix:nonNumeric name="ions:MaximumContractMaturityPeriodRange2" id="Fact_812c571149d64b329fe4410606d76c7a" contextRef="c20210101to20210930" format="ixt-sec:durwordsen">two years</ix:nonNumeric></span> but within <span style="text-indent: 0pt;"><span style="-sec-ix-hidden:Fact_f12cc57cfa544d218ac6c26f9aae5797">three and a half years</span></span></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage" id="Fact_8cd01e7f5688446294ec6f1b2d7e38df" contextRef="c20210930" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">16</ix:nonFraction></div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 88%; padding-bottom: 4px;"><div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage" id="Fact_6217a171f5784696968b178278e97ffa" contextRef="c20210930" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">100</ix:nonFraction></div></td>
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</table>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br /></div>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As illustrated above, at September 30, 2021, <ix:nonFraction name="ions:AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage" id="Fact_ecfa1cb8a4484b48a192e8436b1431fe" contextRef="c20210930" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">84</ix:nonFraction> percent of our available-for-sale securities had a maturity of less than <ix:nonNumeric name="ions:MaximumContractMaturityPeriodRange2" id="Fact_34c87d75876e42c988ffebc06f56b6a3" contextRef="c20210101to20210930" format="ixt-sec:durwordsen">two years</ix:nonNumeric>.</div>
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<div><br /></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">All of our available-for-sale securities are available to us for use in our current operations. As a result, we categorize all of these securities as current assets even though the stated maturity of some individual securities may be one year or more beyond the balance sheet date.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We invest in available-for-sale securities</span> with strong credit ratings and an investment grade rating at or above A-1, P-1 or F-1 by Standard &amp; Poor&#8217;s, or S&amp;P, Moody&#8217;s or Fitch, respectively.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had an ownership interest of less than 20 percent in <ix:nonFraction name="ions:NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment" id="Fact_b7edbc55e46842cb916a4ced56279788" contextRef="c20210930" unitRef="U008" decimals="INF" scale="0" format="ixt-sec:numwordsen">seven</ix:nonFraction> private companies and <ix:nonFraction name="ions:NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment" id="Fact_8144a98eb4174391a5f3065f3f804da4" contextRef="c20210930" unitRef="U008" decimals="INF" scale="0" format="ixt-sec:numwordsen">three</ix:nonFraction> public companies with which we conduct business. The privately held companies are Aro Biotherapeutics, Atlantic Pharmaceuticals Limited, Dynacure SAS, Empirico, Inc., Flamingo Therapeutics BV, YourBio Health, Inc. and Suzhou-Ribo Life Science Co, Ltd. The publicly traded companies are Antisense Therapeutics Ltd., Bicycle and ProQR.</div>
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<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>22</span></div>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following is a summary of our investments (in thousands):</div>
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<div style="text-align: left;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </span><br /></div>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Gross Unrealized</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"><span style="text-indent: 0pt;">September 30, 2021</span></div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Gains</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Losses</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Fair Value</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Available-for-sale securities:</span></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities (2)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_7842515e18104a5cafcff84ddb01d951" contextRef="c20210930_FinancialInstrumentAxis_CorporateDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">447,173</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_18ba7ad7166c418da8278eb1c1894a6f" contextRef="c20210930_FinancialInstrumentAxis_USGovernmentAgenciesDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">96</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_e9cc451da55c4d1c9aa3ad82c7ca9aae" contextRef="c20210930_FinancialInstrumentAxis_USGovernmentAgenciesDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">7</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_9e8a5c54173d453cb9fb728033354336" contextRef="c20210930_FinancialInstrumentAxis_USGovernmentAgenciesDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">83,719</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury (2)</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_cf007fb70961423eb9a3dd191872008b" contextRef="c20210930_FinancialInstrumentAxis_USTreasurySecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">89,275</ix:nonFraction></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_6c641805a540462f9d84d76f2727c1e9" contextRef="c20210930_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">103</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_119b425fc08349cfbe3d5f2787dfca82" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">5,028</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_60331df909a04d32a24d6b9d5d17cd03" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_e14c8b798e654a2ab567476189066f11" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_48196ae3d4df4f8195e5c9e5179b69ee" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">5,026</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of one year or less</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_3e165eb36915445a94e7bca3626be047" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">766,259</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_3c026731cf6c4d2c9f3bb6487eb52874" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,547</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_cbaf34a8cf1344ed8d1c9bd3764052c6" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">91</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_401ef7ec0ee84b33b734c6646f73945d" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">767,715</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_e739ce406a594fdab205b3f709378b35" contextRef="c20210930_FinancialInstrumentAxis_CorporateDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">366,907</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_1465e0f748cd4bfaa10d9f2bc25757c3" contextRef="c20210930_FinancialInstrumentAxis_CorporateDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,181</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_28d6823308c14eabb012545df1bbf47e" contextRef="c20210930_FinancialInstrumentAxis_CorporateDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">475</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_dff0a77ea162428eac31903b7ae1af1c" contextRef="c20210930_FinancialInstrumentAxis_CorporateDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">367,613</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_4069992e62e44ec39ab5806e1ac879fa" contextRef="c20210930_FinancialInstrumentAxis_USGovernmentAgenciesDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">73,028</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_13b8b3118986468c94cef784db3d7d85" contextRef="c20210930_FinancialInstrumentAxis_USGovernmentAgenciesDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_2aa6d352ef954e92b94b3e1d7fb0194a" contextRef="c20210930_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">8</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_e6854048f6c941b08d43417760c49b8d" contextRef="c20210930_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">65</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_d4953054b98b42dba9d5bed9a4393226" contextRef="c20210930_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">41,110</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_86d01f3a3d2546d5a63bacc435eafa71" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">6,169</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_908bc226da6b49d3ac3ca3bfc29507b9" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_68b66be688e0476694e34ca6f3bd8721" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">26</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_07ec3f05fd0e447092c976290e113a2c" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">6,143</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of more than one year</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_2b2ee63d727e423482b317c18a37ce81" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">585,770</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_22456af2bd1a42a5aaa84149b3a6373e" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,435</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_3f93907b739e4f8a80f71070bbbc98e2" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">774</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_33930b14001f46ccb9bf26b44f06a253" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">586,431</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_c63efe923e13426992c34154ca0ceb66" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,352,029</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_4d9475d7048b443985ccf0e54c482dde" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,982</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_abe680e773e045d898d7e780327a8001" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">865</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_ed64a9779a3842959199d38607dc68f6" contextRef="c20210930_FinancialInstrumentAxis_DebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,354,146</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Equity securities:</span></div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNi" id="Fact_c9668cdfca24444facba84f5586a8b21" contextRef="c20210930_FinancialInstrumentAxis_EquitySecuritiesPubliclyTradedCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">13,169</ix:nonFraction></div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in deposits and other assets (4)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiCost" id="Fact_642c9681829a411280b706605512aec4" contextRef="c20210930_FinancialInstrumentAxis_EquitySecuritiesPrivateCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">15,615</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedGain" id="Fact_5465f26f407f4c8cbf1a7f4bc78d58bb" contextRef="c20210101to20210930_FinancialInstrumentAxis_EquitySecuritiesPrivateCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">16,707</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedLoss" id="Fact_8f26e7f4482346919fb9fd971a0e1bd2" contextRef="c20210101to20210930_FinancialInstrumentAxis_EquitySecuritiesPrivateCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNi" id="Fact_c86ece7c238c409db75f4e86d57eaa03" contextRef="c20210930_FinancialInstrumentAxis_EquitySecuritiesPrivateCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">32,322</ix:nonFraction></div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiCost" id="Fact_74700e6175be499286aad7c1da529560" contextRef="c20210930_FinancialInstrumentAxis_EquitySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">27,512</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedGain" id="Fact_023010caa8f343509b0246de63732628" contextRef="c20210101to20210930_FinancialInstrumentAxis_EquitySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">18,642</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedLoss" id="Fact_b4350186c9724e47b1cac8c01c4216b9" contextRef="c20210101to20210930_FinancialInstrumentAxis_EquitySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">663</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNi" id="Fact_10dc545d20404abda7146b5a706c0e00" contextRef="c20210930_FinancialInstrumentAxis_EquitySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">45,491</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px;"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale and equity securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiCost" id="Fact_6c45e37635ae4e82a8fe9a524ce7bc4f" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,379,541</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedGain" id="Fact_5ab4e59a3fb946b2bfa63a42fd6cc9c5" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">21,624</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="ions:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedLoss" id="Fact_571cea17cf8743fbb59b7749cbf08cd2" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,528</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNi" id="Fact_29d056dd0bc546a5b95f13a73db1588f" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,399,637</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Losses</div></td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_2130cf6d51914dc0afd1eccb0e4dfdad" contextRef="c20201231_FinancialInstrumentAxis_USGovernmentAgenciesDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">94,586</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury (2)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_d8fc413c165c4a2c8aa4472257c08e29" contextRef="c20201231_FinancialInstrumentAxis_USTreasurySecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">307,576</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_c7bb5d4884cd42d0a8a8ff87cdcd691a" contextRef="c20201231_FinancialInstrumentAxis_USTreasurySecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">233</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_32a3a41f82bb44c799d99e85af07437d" contextRef="c20201231_FinancialInstrumentAxis_USTreasurySecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">9</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_4ed162913c2d4a49b2bae214aa82a90e" contextRef="c20201231_FinancialInstrumentAxis_USTreasurySecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">307,800</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_e6152f86899e46e196de685960cf0520" contextRef="c20201231_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">104,271</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_976e0d2fac214a4a8ce8d68be3812eda" contextRef="c20201231_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">196</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_e332742abab244fa8bc1de590d821dcc" contextRef="c20201231_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">12</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_072984a5e1e94320b84fd889d20ca860" contextRef="c20201231_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">104,455</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_a7ab9739b25b4394ab74500c2a29c823" contextRef="c20201231_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">5,191</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_41c6c9ee3b0e47fb92892c59f6b90756" contextRef="c20201231_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_706d28fef2024eca9d1840a75a6914ff" contextRef="c20201231_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">7</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_e8fe0e2b39a24133b8d962321697a512" contextRef="c20201231_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">5,184</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of one year or less</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_5d62eb1de663460d8a9d559d81878a58" contextRef="c20201231_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfOneYearOrLessMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,025,454</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_5a7c49cad6044951b9d764adb62179ca" contextRef="c20201231_FinancialInstrumentAxis_USTreasurySecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">50,697</ix:nonFraction></div></td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_ce80a712118d48bca2b5173f22d877be" contextRef="c20201231_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_7f14ae8a216045b6b0f1cba03a06d496" contextRef="c20201231_FinancialInstrumentAxis_OtherDebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of more than one year</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_9edb30f88d124e4f98e5fc6733baa317" contextRef="c20201231_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">5,600</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_bd78e79378ff4eecb24ada86ee7d4685" contextRef="c20201231_FinancialInstrumentAxis_DebtSecuritiesMember_InvestmentSecondaryCategorizationAxis_SecuritiesWithMaturityOfMoreThanOneYearMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">493,847</ix:nonFraction></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" id="Fact_d8842e093daf4aa8a441e191da86ea99" contextRef="c20201231_FinancialInstrumentAxis_DebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,513,770</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" id="Fact_4a16a27e0c4144fea9d33948c111d40b" contextRef="c20201231_FinancialInstrumentAxis_DebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">8,577</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" id="Fact_5d60bf6074c241728013af9aebe4f553" contextRef="c20201231_FinancialInstrumentAxis_DebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">140</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_282a1da5440143508a579978a45d2601" contextRef="c20201231_FinancialInstrumentAxis_DebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,522,207</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Equity securities:</span></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in other current assets (3)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiCost" id="Fact_b8a712e5f4af42cdb9018ff5937f5e79" contextRef="c20201231_FinancialInstrumentAxis_EquitySecuritiesPubliclyTradedCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">4,712</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedGain" id="Fact_8b35758c336d4c378e03fdeaeaa046d7" contextRef="c20200101to20201231_FinancialInstrumentAxis_EquitySecuritiesPubliclyTradedCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedLoss" id="Fact_d23a46f787e04e259237398f99054fea" contextRef="c20200101to20201231_FinancialInstrumentAxis_EquitySecuritiesPubliclyTradedCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,681</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNi" id="Fact_8651c4c7cf0b40ec9603b79cfd50d43b" contextRef="c20201231_FinancialInstrumentAxis_EquitySecuritiesPubliclyTradedCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,031</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in deposits and other assets (4)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiCost" id="Fact_2faff3973c0f4ab0bd4fcffd3307bce8" contextRef="c20201231_FinancialInstrumentAxis_EquitySecuritiesPrivateCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">15,062</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedGain" id="Fact_e3dee8ea479d4e8fbda5e68ba7814a7e" contextRef="c20200101to20201231_FinancialInstrumentAxis_EquitySecuritiesPrivateCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">15,938</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedLoss" id="Fact_53a829bbd230481e83c9e355f575a8b7" contextRef="c20200101to20201231_FinancialInstrumentAxis_EquitySecuritiesPrivateCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNi" id="Fact_90b3f028c4c64df180eb902de39038aa" contextRef="c20201231_FinancialInstrumentAxis_EquitySecuritiesPrivateCompaniesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">31,000</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiCost" id="Fact_cfbea931b88e4baf9112a7e54d02cbfc" contextRef="c20201231_FinancialInstrumentAxis_EquitySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">19,774</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedGain" id="Fact_5e7e8a83411f4b40bf00d16a3e60d487" contextRef="c20200101to20201231_FinancialInstrumentAxis_EquitySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">15,938</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedLoss" id="Fact_d45ad7a12cac403ea2d5a2edb37a0eed" contextRef="c20200101to20201231_FinancialInstrumentAxis_EquitySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,681</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="ions:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedLoss" id="Fact_bf106be9d5824af3aa9e4c635557fb8a" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,821</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNi" id="Fact_ecad1868d9ae4c4cb68ebd3c78a85d30" contextRef="c20201231" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,555,238</ix:nonFraction></div></td>
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    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:footnote id="Foot_305e1d6b0b66460686148b2ce6e01d9b" footnoteRole="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US">We hold our available-for-sale securities at amortized cost.</ix:footnote></div></td>
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</ix:continuation></ix:continuation><ix:continuation id="Text_1ce0da17baa649fb9107511331abf23524" continuedAt="Text_1ce0da17baa649fb9107511331abf23525"><ix:continuation id="Text_1b9ea2f9ba0f40fc96053166724cf72310" continuedAt="Text_1b9ea2f9ba0f40fc96053166724cf72311">
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:footnote id="Foot_20cf8a92586d4d88bc45b040cb662025" footnoteRole="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" continuedAt="Foot_4b4aa9ea11694b5dbe993cee6237a3131">Our equity securities included in other current assets consisted of our investments in <ix:nonFraction name="ions:NumberOfPubliclyTradedCompaniesInWhichEntityHasEquityInvestmentIncludedInOtherCurrentAssets" id="Fact_602d828e78234435b39c13dda2bf144d" contextRef="c20210930" unitRef="U008" decimals="INF" scale="0" format="ixt-sec:numwordsen">two</ix:nonFraction></ix:footnote><ix:continuation id="Foot_4b4aa9ea11694b5dbe993cee6237a3131" continuedAt="Foot_4b4aa9ea11694b5dbe993cee6237a3132"> publicly traded companies, ProQR and Bicycle, which we classify as Level 1 and Level 3 investments, respectively. We recognize publicly traded equity securities at fair value. In the nine months ended September 30, 2021, we recognized a $<ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedGain" id="Fact_cec1b18fe8e84d1ba09baf2edef0616b" contextRef="c20210101to20210930_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_BicycleTherapeuticsPlcMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">1.9</ix:nonFraction></ix:continuation><ix:continuation id="Foot_4b4aa9ea11694b5dbe993cee6237a3132" continuedAt="Foot_4b4aa9ea11694b5dbe993cee6237a3133"> million unrealized gain and a $<ix:nonFraction name="us-gaap:EquitySecuritiesFvNiUnrealizedLoss" id="Fact_8c163df244e8495f8c0396f6ec856bf4" contextRef="c20210101to20210930_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_ProqrTherapeuticsNVMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.7</ix:nonFraction></ix:continuation><ix:continuation id="Foot_4b4aa9ea11694b5dbe993cee6237a3133"> million unrealized loss on our condensed consolidated statement of operations related to our investments in Bicycle and ProQR, respectively. In the nine months ended September 30, 2020, our equity securities included in other current assets only consisted of ProQR.</ix:continuation></div></td>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>23</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The following is a summary of our investments we consider to be temporarily impaired at </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> (in thousands, except for number of investments). </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">All of these investments have less than 12 months of temporary impairment.</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> We believe that the decline in value of these securities is temporary and is primarily related to the change in market interest rates since purchase. We believe it is more likely than not that we will be able to hold our debt securities to maturity. Therefore, we anticipate full recovery of our debt securities&#8217; amortized cost basis at maturity.</span></div>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" id="Fact_e4661c6247f5413ab8050ef2bf3c8ecd" contextRef="c20210930_FinancialInstrumentAxis_USTreasurySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">90</ix:nonFraction></div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%; white-space: nowrap;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions" id="Fact_b00952cfabe040dab55c4f7be6d0f5f0" contextRef="c20210930_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember" unitRef="U009" decimals="0" scale="0" format="ixt:numdotdecimal">432</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" id="Fact_da278c73e9ad479c95a7d4f24fad4115" contextRef="c20210930_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">95</ix:nonFraction></div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions" id="Fact_804d594e36e3489c8b70f36830cbc576" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember" unitRef="U009" decimals="0" scale="0" format="ixt:numdotdecimal">3</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months" id="Fact_0f2a894c607e464dadba386f1f9a5154" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">11,168</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" id="Fact_5c92092395bb4dff86c2075c0fcd369c" contextRef="c20210930_FinancialInstrumentAxis_OtherDebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">28</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%; padding-bottom: 4px; white-space: nowrap;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total temporarily impaired securities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions" id="Fact_94da6cd8b29c481aac1cc09221536180" contextRef="c20210930" unitRef="U009" decimals="0" scale="0" format="ixt:numdotdecimal">616</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months" id="Fact_6aab871af6e244aa8ba86e499764e60e" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">647,954</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" id="Fact_a75019878f0a4a339dcbd69636d6162a" contextRef="c20210930" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">865</ix:nonFraction></div></td>
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  </tr>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">4.&#160; Fair Value Measurements</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We use a three-tier fair value hierarchy to prioritize the inputs used in our fair value measurements. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical assets, which includes our money market funds and treasury securities classified as available-for-sale securities and our investment in equity securities in publicly held biotechnology companies; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable, which includes our fixed income securities and commercial paper classified as available-for-sale securities; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring us to develop our own assumptions. We classify most of our securities as Level 2. We obtain the fair value of our Level 2 investments from our custodian bank or from a professional pricing service. We validate the fair value of our Level 2 investments by understanding the pricing model used by the custodian banks or professional pricing service provider and comparing that fair value to the fair value based on observable market prices.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The following tables present the major security types we held at </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> that we regularly measure and carry at fair value. As of </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">our Bicycle investment was subject to trading restrictions that extend to the third quarter of 2022; as a result, we included a lack of marketability discount in valuing this investment, which is a Level 3 input. </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">As of </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span>we did <ix:nonFraction name="us-gaap:AssetsFairValueDisclosure" id="Fact_50974ba8ecc24eb6b84f3a61bbcce955" contextRef="c20201231_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember" unitRef="U002" decimals="-3" scale="3" format="ixt-sec:numwordsen">no</ix:nonFraction>t have any investments that we valued using Level 3 inputs<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. The following tables segregate each security type by the level within the fair value hierarchy of the valuation techniques we utilized to determine the respective securities&#8217; fair value (in thousands):</span></div>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 8pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">At</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Quoted Prices in</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Active Markets</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Level 1)</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Significant Other</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Observable Inputs</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Level 2)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Significant</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Unobservable Inputs</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Level 3)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Cash equivalents (1)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies (2)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_4ce9866198094ab9bb0fba527e9f7a46" contextRef="c20210930_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_USGovernmentAgenciesDebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">156,628</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_2e48b747b93e49a19ff9c8c29a110e0c" contextRef="c20210930_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_USTreasurySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_a2102c4b8ddf44179d1593de5f225b5c" contextRef="c20210930_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_USTreasurySecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_c11eb07ea3324e24902d31be146e2aba" contextRef="c20210930_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">182,344</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_5239338c06b14e6a85429a23967f6b00" contextRef="c20210930_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel1Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_d3641150e44941fa942aa4dc4b80dcba" contextRef="c20210930_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_USStatesAndPoliticalSubdivisionsMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">182,344</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_5a3e302889e04832960498aaf3fc8b2b" contextRef="c20210930_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_OtherDebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">11,169</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_0dfa9dad994240f3bfc133e3f1806e42" contextRef="c20210930_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_OtherDebtSecuritiesMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">11,169</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNi" id="Fact_7130a91908584a7c9eff44721af2d068" contextRef="c20210930_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_ProqrTherapeuticsNVMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: justify; text-indent: -8.9pt; margin-left: 22.55pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AssetsFairValueDisclosure" id="Fact_fb2ce086644c437499ac32ea8b2ab24d" contextRef="c20210930_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,166,215</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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<table cellpadding="0" cellspacing="0" id="z8685d6d12380471680284300fc5d34af" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 8pt;"></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNi" id="Fact_d4c5e9d825a04573948d40fecaafe4a3" contextRef="c20201231_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel1Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_ProqrTherapeuticsNVMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">2,031</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:EquitySecuritiesFvNi" id="Fact_cb78c50644f34cb6b9de0f25ce8bab73" contextRef="c20201231_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_ProqrTherapeuticsNVMember" unitRef="U002" decimals="-3" scale="3" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AssetsFairValueDisclosure" id="Fact_d10b8ac2b6094eee93ba19fb477f4516" contextRef="c20201231_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel1Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">581,653</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:AssetsFairValueDisclosure" id="Fact_568137f2518f467bb9256c293c42f530" contextRef="c20201231_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember" unitRef="U002" decimals="-3" scale="3" format="ixt:numdotdecimal">1,163,710</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
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</ix:continuation></ix:continuation><ix:continuation id="Text_4f94d72bc30846c291571ca4806583ed9" continuedAt="Text_4f94d72bc30846c291571ca4806583ed10"><ix:continuation id="Text_b5f2d09f01f74c82a13e999393c1e28d5" continuedAt="Text_b5f2d09f01f74c82a13e999393c1e28d6">
<div><br /></div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following footnotes reference lines on our condensed consolidated balance sheet:</div>
</ix:continuation></ix:continuation><ix:continuation id="Text_4f94d72bc30846c291571ca4806583ed11" continuedAt="Text_4f94d72bc30846c291571ca4806583ed12"><ix:continuation id="Text_b5f2d09f01f74c82a13e999393c1e28d7" continuedAt="Text_b5f2d09f01f74c82a13e999393c1e28d8">
<div><br /></div>
</ix:continuation></ix:continuation><ix:continuation id="Text_4f94d72bc30846c291571ca4806583ed12" continuedAt="Text_4f94d72bc30846c291571ca4806583ed13"><ix:continuation id="Text_b5f2d09f01f74c82a13e999393c1e28d8" continuedAt="Text_b5f2d09f01f74c82a13e999393c1e28d9">
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z08636678ca3744a5a0b54544580f25a2">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1)</td>
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</ix:continuation></ix:continuation><ix:continuation id="Text_4f94d72bc30846c291571ca4806583ed13" continuedAt="Text_4f94d72bc30846c291571ca4806583ed14"><ix:continuation id="Text_b5f2d09f01f74c82a13e999393c1e28d9" continuedAt="Text_b5f2d09f01f74c82a13e999393c1e28d10">
<div><br /></div>
</ix:continuation></ix:continuation><ix:continuation id="Text_4f94d72bc30846c291571ca4806583ed14" continuedAt="Text_4f94d72bc30846c291571ca4806583ed15"><ix:continuation id="Text_b5f2d09f01f74c82a13e999393c1e28d10" continuedAt="Text_b5f2d09f01f74c82a13e999393c1e28d11">
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  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:footnote id="Foot_f8be77aa66f84482abc56f1b540c3aca" footnoteRole="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US">Included in short-term investments.</ix:footnote></div></td>
  </tr>
</table>
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<div><br /></div>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z3bbfd84abaf444c49c684502f472abc2">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(3)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:footnote id="Foot_67f6ff09f4d443248a7bd7fe03ce1bd9" footnoteRole="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US">Included in other current assets on our condensed consolidated balance sheet.</ix:footnote></div></td>
  </tr>
</table>
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<div><br /></div>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zb7fb400c39394709977a3bad9f57b0f5">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(4)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:footnote id="Foot_f0cb78a83b31476988ccfd169edddb78" footnoteRole="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" continuedAt="Foot_a65dd84220584774965dd30ccf042d951">$<ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_7c6438ff23cb483388e555ffaff96ce9" contextRef="c20201231_BalanceSheetLocationAxis_CashAndCashEquivalentsMember_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_CorporateDebtSecuritiesMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">10.0</ix:nonFraction></ix:footnote><ix:continuation id="Foot_a65dd84220584774965dd30ccf042d951"> million was included in cash and cash equivalents, with the difference included in short-term investments.</ix:continuation></div></td>
  </tr>
</table>
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<div><br /></div>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z1b70c638a13043e8b0c38074ee3b1eb2">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(5)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:footnote id="Foot_2009e9e101cd4940acd892bb1ca9a15f" footnoteRole="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" continuedAt="Foot_35c94d0544004bdabc8bce4878d470341">$<ix:nonFraction name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" id="Fact_e1137a0d228f4c288dbe6225420e82af" contextRef="c20201231_BalanceSheetLocationAxis_CashAndCashEquivalentsMember_FairValueByMeasurementFrequencyAxis_FairValueMeasurementsRecurringMember_FinancialInstrumentAxis_USTreasurySecuritiesMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">17.5</ix:nonFraction></ix:footnote><ix:continuation id="Foot_35c94d0544004bdabc8bce4878d470341"> million included in cash and cash equivalents on our condensed consolidated balance sheet, with the difference included in short-term investments on our condensed consolidated balance sheet.</ix:continuation></div></td>
  </tr>
</table>
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<div style="text-align: left; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Convertible Notes</div>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_9f5be1954e89462eb0b4b557e590a667" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes, <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_dfc304a4577d4a8b8ccf97e7be8f9791" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes and <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_b605dc05faaa4ecf92f3388ccd8e6140" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes had a fair value of $<ix:nonFraction name="us-gaap:NotesPayableFairValueDisclosure" id="Fact_08dde5b870bf48ad8f56230371fe5c23" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">61.9</ix:nonFraction> million, $<ix:nonFraction name="us-gaap:NotesPayableFairValueDisclosure" id="Fact_886896b6a5b643a387fb328dcc366ca9" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">504.3</ix:nonFraction> million and $<ix:nonFraction name="us-gaap:NotesPayableFairValueDisclosure" id="Fact_e2d5869342504cbea6cdb10162937afd" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel2Member" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">581.4</ix:nonFraction> million at September 30, 2021, respectively. We determine the fair value of our notes based on quoted market prices for these notes, which are Level 2 measurements because the notes do not trade regularly.</div>
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<div><ix:nonNumeric name="us-gaap:CollaborativeArrangementDisclosureTextBlock" id="Text_49a5ba0585764afaa86538e52aa60f04" contextRef="c20210101to20210930" escape="true" continuedAt="Text_ca90e68712b747d4bb61595982e4e8a41">
<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">5.&#160; Collaborative Arrangements and Licensing Agreements</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Below, we have included our Biogen and Novartis collaborations, which are our only collaborations with substantive changes during </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">2021</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> from those included in Note 6 of our audited financial statements included in our Annual Report on Form 10-K for the year ended </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">December 31, 2020</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span></div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Strategic Partnership</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Biogen</div>
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<div><br /></div>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have several strategic collaborations with Biogen focused on using antisense technology to advance the treatment of neurological disorders. These collaborations combine our expertise in creating antisense medicines with Biogen&#8217;s expertise in developing therapies for neurological disorders. We developed and licensed to Biogen SPINRAZA, our approved medicine to treat people with spinal muscular atrophy, or SMA. We and Biogen are currently developing <ix:nonFraction name="ions:NumberOfMedicinesBeingDeveloped" id="Fact_92d0ca6977364d5fb2c03318547a94af" contextRef="c20210930_TypeOfArrangementAxis_CollaborativeArrangementsAndLicensingAgreementsBiogenMember" unitRef="U013" decimals="INF" scale="0" format="ixt-sec:numwordsen">eight</ix:nonFraction> investigational medicines to treat neurodegenerative diseases under these collaborations, including medicines in development to treat people with ALS, Alzheimer&#8217;s disease<sub>&#xA0;</sub>and Parkinson&#8217;s disease. In addition to these medicines, our collaborations with Biogen include a substantial research pipeline that addresses a broad range of neurological diseases. From inception through September 30, 2021, we have received more than $<ix:nonFraction name="ions:CumulativePaymentsReceived" id="Fact_4de0101278b94f98a15dfb2c4990f91e" contextRef="c20210930_RangeAxis_MinimumMember_TypeOfArrangementAxis_CollaborativeArrangementsAndLicensingAgreementsBiogenMember" unitRef="U002" decimals="-8" scale="9" format="ixt:numdotdecimal">3.0</ix:nonFraction> billion from our Biogen collaborations.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>25</span></div>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">During the three and nine months ended September 30, 2021 and 2020, we earned the following revenue from our relationship with Biogen (in millions, except percentage amounts):</div>
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<table cellpadding="0" cellspacing="0" id="z315a39dc03974fd4a97d17595dd4ee4d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -27pt; margin-left: 27pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">SPINRAZA royalties (commercial revenue)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_58894b647a204f3f9befa22c21936367" contextRef="c20210701to20210930_ProductOrServiceAxis_SpinrazaRoyaltiesMember_TypeOfArrangementAxis_CollaborativeArrangementsAndLicensingAgreementsBiogenMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">66.6</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_8ef36b11d0eb42bbb715301764db5835" contextRef="c20200701to20200930_ProductOrServiceAxis_SpinrazaRoyaltiesMember_TypeOfArrangementAxis_CollaborativeArrangementsAndLicensingAgreementsBiogenMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">74.2</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_ea81f77e846e484588deec9130e7b93b" contextRef="c20210101to20210930_ProductOrServiceAxis_SpinrazaRoyaltiesMember_TypeOfArrangementAxis_CollaborativeArrangementsAndLicensingAgreementsBiogenMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">198.7</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our condensed consolidated balance sheet at September 30, 2021 and December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#xA0;</span>included deferred revenue of $<ix:nonFraction name="us-gaap:ContractWithCustomerLiability" id="Fact_5178e097d0c342cf84072f17ad124e39" contextRef="c20210930_TypeOfArrangementAxis_CollaborativeArrangementsAndLicensingAgreementsBiogenMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">412.5</ix:nonFraction> million and $<ix:nonFraction name="us-gaap:ContractWithCustomerLiability" id="Fact_7b83a105f51e48c19c4fa834b14d4660" contextRef="c20201231_TypeOfArrangementAxis_CollaborativeArrangementsAndLicensingAgreementsBiogenMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">465.8</ix:nonFraction> million, respectively, related to our relationship with Biogen.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">During the first nine months of 2021, we did not have any changes to our performance obligations, transaction price or the timing in which we expect to recognize revenue under our Biogen collaborations.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we earned a $<ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_ab91654b7168476fa5495fb1d76b719d" contextRef="c20210401to20210630_ProductOrServiceAxis_Ion541Member_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">10</ix:nonFraction> million milestone payment from Biogen when Biogen advanced ION541, an investigational medicine targeting ATXN2 to treat patients with ALS. We recognized the milestone payment in full in the second quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment. We will achieve the next payment of $<ix:nonFraction name="ions:NextPotentialPayment" id="Fact_11c23dc721af4581b81256e8aebe8b08" contextRef="c20210930_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">8</ix:nonFraction> million if Biogen advances one of the medicines under our 2013 strategic neurology collaboration.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Research, Development and Commercialization Partner</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Novartis</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In January 2017, we initiated a collaboration with Novartis to develop and commercialize pelacarsen. In February 2019, Novartis licensed pelacarsen. Novartis is responsible for conducting and funding future development and regulatory activities for pelacarsen, including a global Phase 3 cardiovascular outcomes study that Novartis initiated in the fourth quarter 2019. In connection with Novartis&#8217; license of pelacarsen, we and Novartis established a more definitive framework under which the companies would negotiate the co-commercialization of pelacarsen in selected markets. Included in this framework is an option by which Novartis could solely commercialize pelacarsen in exchange for Novartis paying us increased sales milestone payments based on sales of pelacarsen. </span>From inception through September 30, 2021, we have received $<ix:nonFraction name="ions:CumulativePaymentsReceived" id="Fact_2938d79a4b3c47b286252da2424125bd" contextRef="c20210930_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">425</ix:nonFraction> million from our Novartis collaboration.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In August 2021, we earned a $<ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" id="Fact_e27d9cae2e1a40f8980e10b04c448140" contextRef="c20210801to20210831_ProductOrServiceAxis_PelacarsenMember_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">25</ix:nonFraction> million milestone payment from Novartis when Novartis achieved <ix:nonFraction name="ions:PercentageEnrollmentInPhase3Study" id="Fact_092d43ef205349efa8c7192680ff095c" contextRef="c20210831_ProductOrServiceAxis_PelacarsenMember_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">50</ix:nonFraction> percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We recognized the milestone payment in full in the third quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment. We will achieve the next payment of up to $<ix:nonFraction name="ions:NextPotentialMilestonePayment" id="Fact_603840c12ecb496fb48940a580e535f3" contextRef="c20210930_RangeAxis_MaximumMember_TypeOfArrangementAxis_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">75</ix:nonFraction> million if Novartis advances regulatory activities for pelacarsen.</div>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Technology Enhancement Collaboration</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Bicycle License Agreement</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we entered into a collaboration agreement with Bicycle and obtained an option to license its peptide technology to potentially increase the delivery capabilities of our LIgand Conjugated Antisense, or LICA, medicines. In July 2021, we paid $<ix:nonFraction name="ions:PaymentsMadeUnderCollaborationAgreement" id="Fact_b1103b414744474e997e226653acb242" contextRef="c20210701to20210731_TypeOfArrangementAxis_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">42</ix:nonFraction> million when we exercised our option to license Bicycle&#8217;s technology, which included an equity investment in Bicycle. As part of our stock purchase, we entered into a lockup agreement with Bicycle that restricts our ability to trade our Bicycle shares for <ix:nonNumeric name="ions:LockUpAgreementTermOfTradingRestriction" id="Fact_501f9f66c9b54e6784e28e4c91caa9b9" contextRef="c20210101to20210930_TypeOfArrangementAxis_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" format="ixt-sec:durwordsen">one year</ix:nonNumeric>. In the third quarter of 2021, we recorded a $<ix:nonFraction name="ions:InvestmentInEquitySecuritiesFvNi" id="Fact_c0773e3d43774633a971fd5b3d343942" contextRef="c20210701to20210930_TypeOfArrangementAxis_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">7.2</ix:nonFraction> million equity investment for the shares we received in Bicycle. We recognized the remaining $<ix:nonFraction name="us-gaap:ResearchAndDevelopmentExpense" id="Fact_f730ce02f51044fe8fb4f9f360c7bdc8" contextRef="c20210701to20210930_TypeOfArrangementAxis_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">34.8</ix:nonFraction> million as R&amp;D expense in the third quarter of 2021. From inception through September 30, 2021, we have paid $<ix:nonFraction name="ions:CumulativePaymentsMade" id="Fact_2b8ef3a5d6eb46b8841edde8f1e60995" contextRef="c20210930_TypeOfArrangementAxis_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" unitRef="U002" decimals="-6" scale="6" format="ixt:numdotdecimal">45</ix:nonFraction> million under our collaboration agreement with Bicycle.</div>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">6. Convertible Debt</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_6084a279781c4f6f9d255000ab9021c3" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction> Percent</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Convertible Senior Notes and Call Spread</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we completed a $<ix:nonFraction name="us-gaap:DebtInstrumentFaceAmount" id="Fact_31b7ba9c70ea47c98e3db30445a91628" contextRef="c20210430_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">632.5</ix:nonFraction> million offering of convertible senior notes. We used a portion of the net proceeds from the issuance of the <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_9dafbe4ac36f4acab7c5417e2b16fdb9" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes to repurchase $<ix:nonFraction name="us-gaap:DebtInstrumentRepurchasedFaceAmount" id="Fact_367cca58a7ca4ff88703902e4e0bd9d7" contextRef="c20210430_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">247.9</ix:nonFraction> million in principal of our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_daaf05b5284740438b6e8f119ed98382" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes for $<ix:nonFraction name="us-gaap:RepaymentsOfConvertibleDebt" id="Fact_b88be17da074442d8e0174eda1c066ff" contextRef="c20210401to20210430_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">257.0</ix:nonFraction> million.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_851b6e16263b47a8a5a3b794b32dee59" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>%</span> Notes outstanding (amounts in millions except interest rate and price per share data):</div>
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<table cellpadding="0" cellspacing="0" id="z3b52a1ba8b4145968e1b88032485ff68" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_c94bff2160504f00b4aff81b982396f8" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>%</span> Notes</div></td>
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    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Outstanding principal balance</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unamortized debt issuance costs</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DeferredFinanceCostsNet" id="Fact_8ceb1a5736644a6b89bc5c24ba652acf" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">14.2</ix:nonFraction></div></td>
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    <td valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Maturity date</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; background-color: #CCEEFF;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="-sec-ix-hidden:Fact_109f9369bddf4793b7c1ba8f66869fde">April 2026</span></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: top;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest rate</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top;"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_dce4bbae7b2a40908908ca4da1034984" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction> percent</div></td>
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    <td valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective interest rate</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; background-color: #CCEEFF;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateEffectivePercentage" id="Fact_e393d99c85b54051913a784296da3887" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="3" scale="-2" format="ixt:numdotdecimal">0.5</ix:nonFraction> percent</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversion price per share</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentConvertibleConversionPrice1" id="Fact_b923c911082f4a9dbe578941ab6ba57e" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">57.84</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective conversion price per share with call spread</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtInstrumentConvertibleConversionPriceIncludingCallSpread" id="Fact_b9aacb5cbdd246a29518869cf1580bba" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">76.39</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
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    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total shares of common stock subject to conversion</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtInstrumentConvertibleSharesSubjectToConversion" id="Fact_36af5452ef2d4158ba6f36e437b52979" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U001" decimals="-5" scale="6" format="ixt:numdotdecimal">10.9</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In conjunction with the April 2021 offering, we entered into a call spread transaction, which was comprised of purchasing note hedges and selling warrants, to minimize the impact of potential economic dilution upon conversion of our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_a1c65db2db5e45bf9144abb23a3708cd" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes by increasing the effective conversion price on our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_47594a78eeb74261b797d8f322986fa4" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes. We increased our effective conversion price to $<ix:nonFraction name="ions:DebtInstrumentConvertibleConversionPriceIncludingCallSpread" id="Fact_adfab887b13140eda35dd28df11ca681" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">76.39</ix:nonFraction> with the same number of underlying shares as our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_1e893f3eccd04fa886b5729d9095bb3a" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes. The call spread cost us $<ix:nonFraction name="ions:CallSpread" id="Fact_9cea2f5d760e42c0a7580446a66d3538" contextRef="c20210401to20210430" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">46.9</ix:nonFraction> million, of which $<ix:nonFraction name="us-gaap:PaymentsForHedgeFinancingActivities" id="Fact_36a469c4005348aa8141ff489585a08c" contextRef="c20210401to20210430" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">136.7</ix:nonFraction> million was for the note hedge purchase, offset by $<ix:nonFraction name="us-gaap:ProceedsFromIssuanceOfWarrants" id="Fact_9dc32db714544a28860e525c4fab30e8" contextRef="c20210401to20210430" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">89.8</ix:nonFraction> million we received for selling the warrants. Similar to our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_327d187d871445adb18503b7c83d8bb1" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes, our note hedges are subject to adjustment. Additionally, our note hedges are exercisable upon conversion of the <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_1bb651c30fc64b0db83da188f8aae2f8" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes. The note hedges will expire upon maturity of the <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_ca5f6c96b1124b2989fd762efdf51a1e" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes, or April 2026. The note hedges and warrants are separate transactions and are not part of the terms of our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_01da5b0bd9a8481f8816fdd4ee0aa0c5" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes. The holders of the <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_7c0a89b92f644ec1a10cc74660014eab" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>% Notes do not have any rights with respect to the note hedges and warrants.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recorded the amount we paid for the note hedges and the amount we received for the warrants in additional paid-in capital in our condensed consolidated balance sheet. See our Call Spread accounting policy in Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, in the Notes to the Condensed Consolidated Financial Statements. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#8217; equity at each reporting period.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_76ff515a60454ce18e1a9984840953ae" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction> Percent Convertible Senior Notes and Call Spread</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_e999f0a79cc5454dbb35d79507c6bf14" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):</div>
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<table cellpadding="0" cellspacing="0" id="z935b910ae74347ea89d8185168cb25be" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
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    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Outstanding principal balance</div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unamortized debt issuance costs</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DeferredFinanceCostsNet" id="Fact_3f38f311c31c47e9afa1a4b179a0fa8a" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">7.1</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Maturity date</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; background-color: #CCEEFF;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="-sec-ix-hidden:Fact_c5b254d960d242d380e7e1f35dc8b7ec">December 2024</span></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest rate</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top;"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_f28004647502413bae9a04a5c327033e" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction> percent</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective interest rate</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; background-color: #CCEEFF;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateEffectivePercentage" id="Fact_a9ed75c8530a4cdd980eb1dc32b37ca0" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="3" scale="-2" format="ixt:numdotdecimal">0.5</ix:nonFraction> percent</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversion price per share</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:DebtInstrumentConvertibleConversionPrice1" id="Fact_6424592d0e3847f9b21c7950d9891db7" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">83.28</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective conversion price per share with call spread</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtInstrumentConvertibleConversionPriceIncludingCallSpread" id="Fact_257883a038234987a42360f37188d9b5" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">123.38</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total shares of common stock subject to conversion</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtInstrumentConvertibleSharesSubjectToConversion" id="Fact_ed9c5d233d3b47b992cb88b28e7d96fe" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U001" decimals="-5" scale="6" format="ixt:numdotdecimal">6.6</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
</table>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br /></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In conjunction with the issuance of our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_fce48022202d43bb90824a8ab622ba1e" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes in December 2019, we entered into a call spread transaction, which was comprised of purchasing note hedges and selling warrants, to minimize the impact of potential economic dilution upon conversion of our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_74c63dcb37a94b7c96fcda23934eccde" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes by increasing the effective conversion price on our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_5e16fd8ed7c44c38864b21191b33ad87" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. We increased our effective conversion price to $</span><ix:nonFraction name="ions:DebtInstrumentConvertibleConversionPriceIncludingCallSpread" id="Fact_706c33f17c1047e2b303834e2dfa9903" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U004" decimals="2" scale="0" format="ixt:numdotdecimal">123.38</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> with the same number of underlying shares as our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_8ada2275fc3149ba9239349b360d3ff0" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes. The call spread cost us $</span><ix:nonFraction name="ions:CallSpread" id="Fact_376edf8306554bc9be15b3e5059f9689" contextRef="c20191201to20191231" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">52.6</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million, of which $</span><ix:nonFraction name="us-gaap:PaymentsForHedgeFinancingActivities" id="Fact_63109fd55a644feaa1ceeef8ebde9e37" contextRef="c20191201to20191231" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">108.7</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million was for the note hedge purchase, offset by $</span><ix:nonFraction name="us-gaap:ProceedsFromIssuanceOfWarrants" id="Fact_821561db37bf489ea047c585d83d7fb2" contextRef="c20191201to20191231" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">56.1</ix:nonFraction><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million we received for selling the warrants. Similar to our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_8508261275f046e4bd44878636855c30" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, our note hedges are subject to adjustment. Additionally, our note hedges are exercisable upon conversion of the </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_a599520206b24338ba155a460138e93b" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. The note hedges will expire upon maturity of the </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_9d674b898cb1469d9b4c18232244d3d9" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, or December 2024. The note hedges and warrants are separate transactions and are not part of the terms of our </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_dcf07dd5cb7a40b58bbb604e293f91c3" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. The holders of the </span><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_cf200a768fcb4dcb9dda4aaad67a8130" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> do not have any rights with respect to the note hedges and warrants.</span></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>27</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recorded the amount we paid for the note hedges and the amount we received for the warrants in additional paid-in capital in our condensed consolidated balance sheet. See our Call Spread accounting policy in Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, in the Notes to the Condensed Consolidated Financial Statements. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#8217; equity at each reporting period.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_fd23717a1d4d4ec2ae3decc69589c581" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction> Percent Convertible Senior Notes</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_e4f1e352ad994f57a4cc8c35adf0de01" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):</div>
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<table cellpadding="0" cellspacing="0" id="z7723d01c0e3041f2a71949bbf69f07ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Outstanding principal balance</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unamortized debt issuance costs</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Maturity date</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; background-color: #CCEEFF;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="-sec-ix-hidden:Fact_cca8f6878ebf4cc88a7c1b64303ba443">November 2021</span></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest rate</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective interest rate</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversion price per share</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total shares of common stock subject to conversion</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:DebtInstrumentConvertibleSharesSubjectToConversion" id="Fact_8af5d11f46454146aa553d52586888c0" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U001" decimals="-5" scale="6" format="ixt:numdotdecimal">0.9</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we repurchased $<ix:nonFraction name="us-gaap:DebtInstrumentRepurchasedFaceAmount" id="Fact_5733913e61d243aba64ac5cdde17967a" contextRef="c20210430_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">247.9</ix:nonFraction> million in aggregate principal amount of our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_7dce99cb33884aa695f60d9714cdbc63" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes in privately negotiated transactions. As a result of the repurchase, we recognized an $<ix:nonFraction name="us-gaap:GainsLossesOnExtinguishmentOfDebt" id="Fact_475d555508dd44ec879d8264ff4f449f" contextRef="c20210401to20210430_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">8.6</ix:nonFraction> million non-cash loss on early retirement of debt, reflecting the early retirement of a significant portion of our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_c7210172079a44a29a43562f67ccf9c3" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes. The non-cash loss on the early retirement of our debt is the difference between the amount paid to retire our <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_a41d730fa97348cbb6f1560579771061" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes and the net carrying balance of the liability at the time that we retired the debt.</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Other Terms of Convertible Senior Notes</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_b2fc1c75f5c641f2b66eff5bf9e11829" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">0</ix:nonFraction>%, <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_c98e7aaf45cf42a78ac646beebca0a17" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="5" scale="-2" format="ixt:numdotdecimal">0.125</ix:nonFraction>% and <ix:nonFraction name="us-gaap:DebtInstrumentInterestRateStatedPercentage" id="Fact_081e13ee19fb4f5e954bcb24cbc4843c" contextRef="c20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">1</ix:nonFraction>% Notes are convertible under certain conditions, at the option of the note holders. We can settle conversions of the notes, at our election, in cash, shares of our common stock or a combination of both. We may not redeem the notes prior to maturity, and we do not have to provide a sinking fund for them. Holders of the notes may require us to purchase some or all of their notes upon the occurrence of certain fundamental changes, as set forth in the indentures governing the notes, at a purchase price equal to <ix:nonFraction name="ions:DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" id="Fact_01965def6c8647aa98fa503feb99c304" contextRef="c20210101to20210930_DebtInstrumentAxis_ConvertibleSeniorNotes1PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal"><ix:nonFraction name="ions:DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" id="Fact_d0a7473945cc459e81637c010df801c1" contextRef="c20210101to20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0125PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal"><ix:nonFraction name="ions:DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" id="Fact_236a491df6914133bf71b4e04a765967" contextRef="c20210101to20210930_DebtInstrumentAxis_ConvertibleSeniorNotes0PercentMember" unitRef="U003" decimals="2" scale="-2" format="ixt:numdotdecimal">100</ix:nonFraction></ix:nonFraction></ix:nonFraction> percent of the principal amount of the notes to be purchased, plus any accrued and unpaid interest.</div>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">7. Severance and Retention Costs</div>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Akcea Merger</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As a result of the Akcea Merger in October 2020, we began recognizing severance and retention expenses in the fourth quarter of 2020. The following table summarizes our total estimated severance and retention expenses related to the Akcea Merger (in millions):</div>
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<table cellpadding="0" cellspacing="0" id="z5de3073085ac47a4b7f1a66274084b66" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Severance and</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Retention Expenses</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total estimated expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringAndRelatedCostExpectedCost1" id="Fact_1853d9be11764da089b0a86b823568e3" contextRef="c20210930_RestructuringCostAndReserveAxis_AkceaAcquisitionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">27.2</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expenses incurred from inception to September 30, 2021</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringAndRelatedCostCostIncurredToDate1" id="Fact_56aa49260fd44e3c8cd22adb414f90fd" contextRef="c20210930_RestructuringCostAndReserveAxis_AkceaAcquisitionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">27.0</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Remaining estimated expenses to be recognized through October 2021</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringAndRelatedCostExpectedCostRemaining1" id="Fact_cd9f592582f348ccb6e78e621bb98ee6" contextRef="c20210930_RestructuringCostAndReserveAxis_AkceaAcquisitionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.2</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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</table>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes our severance and retention expenses related to the Akcea Merger that we recognized during the three and nine months ended September 30, 2021 (in millions):</div>
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<table cellpadding="0" cellspacing="0" id="ze5de025aab5946f4bbc66473886c29cf" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_31224d223cf448fd9bb4a6e7831acf14" contextRef="c20210101to20210930_IncomeStatementLocationAxis_ResearchDevelopmentAndPatentExpensesMember_RestructuringCostAndReserveAxis_AkceaAcquisitionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">5.1</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_dbe130fede1e4e62bf962c75d7b67835" contextRef="c20210701to20210930_IncomeStatementLocationAxis_SellingGeneralAndAdministrativeExpensesMember_RestructuringCostAndReserveAxis_AkceaAcquisitionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.6</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_f55d36ebc257444cb275c63441e1d184" contextRef="c20210101to20210930_IncomeStatementLocationAxis_SellingGeneralAndAdministrativeExpensesMember_RestructuringCostAndReserveAxis_AkceaAcquisitionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">6.6</ix:nonFraction></div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_e35edf6df6f9497eb511d3d5e0c2e968" contextRef="c20210101to20210930_RestructuringCostAndReserveAxis_AkceaAcquisitionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">11.7</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>28</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention reserve amounts related to the Akcea Merger that we included in accrued compensation for the period indicated (in millions):</div>
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    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net amount expensed during the period</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 4px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringReserve" id="Fact_087d09c605f64b60823973a7d3614130" contextRef="c20210930_RestructuringCostAndReserveAxis_AkceaAcquisitionMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">5.8</ix:nonFraction></div></td>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br /></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The reserve adjustments during the period primarily related to forfeitures of severance and retention payments as a result of employee terminations before they earned the amounts.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Restructured European Operations</div>
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<div><br /></div>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we entered into a distribution agreement with Sobi for TEGSEDI and WAYLIVRA in Europe. As a result, we restructured our European Operations, or Restructured European Operations. In the fourth quarter of 2020, we began recognizing severance and retention expenses related to our Restructured European Operations. The following table summarizes our total severance and retention expenses related to our Restructured European Operations (in millions):</div>
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<div><br /></div>
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<table cellpadding="0" cellspacing="0" id="z9be2de7500a0491aab6b3e3f46abbfc3" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Severance and</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Retention Expenses</div></td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total estimated expenses</div></td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention expenses related to our Restructured European Operations that we recognized during the three and nine months ended September 30, 2021 (in millions):</div>
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  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_eeb113f9cfda482cab770f1500577a24" contextRef="c20210701to20210930_IncomeStatementLocationAxis_ResearchDevelopmentAndPatentExpensesMember_RestructuringCostAndReserveAxis_RestructuredEuropeanOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.5</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_ced0d1e7fbf3472eb0cbe69211b7905f" contextRef="c20210101to20210930_IncomeStatementLocationAxis_ResearchDevelopmentAndPatentExpensesMember_RestructuringCostAndReserveAxis_RestructuredEuropeanOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.6</ix:nonFraction></div></td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_79c8dcd4b4184f8e8ea6c2869efc01fa" contextRef="c20210701to20210930_IncomeStatementLocationAxis_SellingGeneralAndAdministrativeExpensesMember_RestructuringCostAndReserveAxis_RestructuredEuropeanOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.1</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_010df762dc9e44718372a7b031fc7562" contextRef="c20210101to20210930_IncomeStatementLocationAxis_SellingGeneralAndAdministrativeExpensesMember_RestructuringCostAndReserveAxis_RestructuredEuropeanOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">1.1</ix:nonFraction></div></td>
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    <td valign="bottom" style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_b05244c202044be39d750dcf774f6fd6" contextRef="c20210701to20210930_RestructuringCostAndReserveAxis_RestructuredEuropeanOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.6</ix:nonFraction></div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="ions:RestructuringReserveRestructuringChargesNetOfReserveAdjustments" id="Fact_81e558e410144fa492f5b01a187ac0a7" contextRef="c20210101to20210930_RestructuringCostAndReserveAxis_RestructuredEuropeanOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">1.7</ix:nonFraction></div></td>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention reserve amounts related to our Restructured European Operations that we included in accrued compensation for the period indicated (in millions):</div>
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  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning balance as of January 1, 2021</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net amount expensed during the period</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts paid during the period</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:PaymentsForRestructuring" id="Fact_5e368d6f9c2742778852284af134f3dc" contextRef="c20210101to20210930_RestructuringCostAndReserveAxis_RestructuredEuropeanOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">13.4</ix:nonFraction></div></td>
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  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 4px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringReserve" id="Fact_45774756320a4dfaab2e0a8bec94a1f0" contextRef="c20210930_RestructuringCostAndReserveAxis_RestructuredEuropeanOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.7</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
  </tr>
</table>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br /></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The reserve adjustments during the period primarily related to tax expense adjustments.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>29</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Restructured North American TEGSEDI Operations</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we entered into a distribution agreement with Sobi for TEGSEDI in North America. Under the terms of the distribution agreement, we will retain the marketing authorizations for TEGSEDI in the U.S. and Canada. We will continue to supply commercial product to Sobi and manage regulatory and manufacturing processes, as well as relationships with key opinion leaders. We will also continue to lead the TEGSEDI global commercial strategy. Sobi will otherwise have responsibility for commercializing TEGSEDI in the U.S. and Canada.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In connection with restructuring our North American TEGSEDI operations, or Restructured North American TEGSEDI Operations, we enacted a plan to reorganize our Akcea workforce in North America to better align with the needs of our business and to focus on our wholly owned pipeline.</div>
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</ix:continuation><ix:continuation id="Text_3b817c03de954e9687f8ba21b2e8529440" continuedAt="Text_3b817c03de954e9687f8ba21b2e8529441"><ix:nonNumeric name="us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock" id="Text_53553433b7fa41ef9da229bb5ed56510" contextRef="c20210101to20210930_RestructuringCostAndReserveAxis_RestructuredNorthAmericanTegsediOperationsMember" escape="true" continuedAt="Text_55a601ce4bef4f95ac1cabf01322198f1">
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance expenses related to our Restructured North American TEGSEDI Operations that we recognized during the second quarter of 2021 (in millions):</div>
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<table cellpadding="0" cellspacing="0" id="zef341a1ee1b841938437d2f593f97b1e" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">June 30, 2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringCharges" id="Fact_b86d2fb4ecc04e0480b58976b309ca56" contextRef="c20210401to20210630_IncomeStatementLocationAxis_ResearchDevelopmentAndPatentExpensesMember_RestructuringCostAndReserveAxis_RestructuredNorthAmericanTegsediOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">2.3</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringCharges" id="Fact_3325d50c375342088e7a6bb4192d21c2" contextRef="c20210401to20210630_IncomeStatementLocationAxis_SellingGeneralAndAdministrativeExpensesMember_RestructuringCostAndReserveAxis_RestructuredNorthAmericanTegsediOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">7.1</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringCharges" id="Fact_b4401298e05b46ab918177f9caebcd06" contextRef="c20210401to20210630_RestructuringCostAndReserveAxis_RestructuredNorthAmericanTegsediOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">9.4</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognized all severance expenses related to our Restructured North American TEGSEDI Operations during the three months ended June 30, 2021.</div>
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<div style="display:none;"><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance reserve amounts related to our Restructured North American TEGSEDI Operations that we included in accrued compensation for the period indicated (in millions):</div>
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<table cellpadding="0" cellspacing="0" id="z0f09e5d288f64f2eab0b8cf3ba594c84" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning balance as of January 1, 2021</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringReserve" id="Fact_219a2c99a34f4ba5927d0f26181d90c4" contextRef="c20201231_RestructuringCostAndReserveAxis_RestructuredNorthAmericanTegsediOperationsMember" unitRef="U002" decimals="-6" scale="6" format="ixt:zerodash">&#8212;</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts expensed during the period</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringCharges" id="Fact_30dd8de7e6294511b14088f0edd83620" contextRef="c20210101to20210930_RestructuringCostAndReserveAxis_RestructuredNorthAmericanTegsediOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">9.4</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts paid during the period</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(<ix:nonFraction name="us-gaap:PaymentsForRestructuring" id="Fact_2af66b39542147acb53b27f2a2276b3d" contextRef="c20210101to20210930_RestructuringCostAndReserveAxis_RestructuredNorthAmericanTegsediOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">9.2</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
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    <td valign="bottom" style="vertical-align: top; width: 88%; padding-bottom: 4px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><ix:nonFraction name="us-gaap:RestructuringReserve" id="Fact_50bd73fd4a8941c19ad7a50f0f98020d" contextRef="c20210930_RestructuringCostAndReserveAxis_RestructuredNorthAmericanTegsediOperationsMember" unitRef="U002" decimals="-5" scale="6" format="ixt:numdotdecimal">0.2</ix:nonFraction></div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
  </tr>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>30</span></div>
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    <td style="width: 72pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ITEM 2.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">MANAGEMENT&#8217;S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS</div></td>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">In this Report on Form 10-Q, unless the context requires otherwise, &#8220;Ionis,&#8221; &#8220;Company,&#8221; &#8220;we,&#8221; &#8220;our,&#8221; and &#8220;us,&#8221; means Ionis Pharmaceuticals, Inc. and its wholly owned subsidiary, Akcea Therapeutics, Inc.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Forward-Looking Statements</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">In addition to historical information contained in this Report on Form 10-Q, the Report includes forward-looking statements regarding our business and the therapeutic and commercial potential of SPINRAZA (nusinersen), TEGSEDI (inotersen), WAYLIVRA (volanesorsen) and our technologies and products in development. Any statement describing our goals, expectations, financial or other projections, intentions or beliefs, is a forward-looking statement and should be considered an at-risk statement. Such statements are subject to certain risks and uncertainties, including those related to the impact COVID-19 could have on our business, and including those inherent in the process of discovering, developing and commercializing medicines that are safe and effective for use as human therapeutics, and in the endeavor of building a business around such medicines. Our forward-looking statements also involve assumptions that, if they never materialize or prove correct, could cause our results to differ materially from those expressed or implied by such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in this report and described in additional detail in our annual report on Form 10-K for the year ended December 31, 2020, which is on file with the U.S. Securities and Exchange Commission and is available from us, and those identified within Part II Item 1A. Risk Factors of this Report. Although our forward-looking statements reflect the good faith judgment of our management, these statements are based only on facts and factors currently known by us. As a result, you are cautioned not to rely on these forward-looking statements.</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Overview</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are a leader in RNA-targeted therapy and believe our medicines are pioneering new markets, changing standards of care and transforming the lives of people with devastating diseases. Our clinical pipeline of potential first-in-class and/or best-in-class medicines address a broad range of diseases. We are primarily focused on two core franchises: neurology and cardiometabolic. Our commercial products SPINRAZA, TEGSEDI and WAYLIVRA, are approved in major markets around the world. Within our late-stage pipeline, we have seven Phase 3 programs ongoing with five medicines: tofersen for SOD1-ALS, eplontersen (IONIS-TTR-L<sub>Rx</sub>) for transthyretin, or TTR, amyloidosis, olezarsen (IONIS-APOCIII-L<sub>Rx</sub>) for familial chylomicronemia syndrome, or FCS, and severe hypertriglyceridemia, or sHTG, pelacarsen for lipoprotein(a), or Lp(a), driven cardiovascular disease and ION363 for amyotrophic lateral sclerosis, or ALS, with mutations in the fused in sarcoma gene, or FUS.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our multiple sources of revenue and strong balance sheet provide us with substantial financial strength. Our financial strength enables us to execute on our capital allocation strategy, which is focused on internal investment in three key areas: our wholly owned pipeline, building our commercial capabilities and broadening the reach of our technology. We believe investing in these areas moves us closer to our goal of 12 or more marketed products in 2026 and will drive the greatest value for patients and shareholders.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Commercial Medicines</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">SPINRAZA is the global market leader for the treatment of patients of all ages with spinal muscular atrophy, or SMA, a progressive, debilitating and often fatal genetic disease. Biogen, our partner responsible for commercializing SPINRAZA worldwide, reported that as of September 30, 2021, more than 11,000 patients were on SPINRAZA therapy in markets around the world. Through September 30, 2021, we have earned more than $1.5 billion in revenues from our SPINRAZA collaboration, including more than $1.1 billion in royalties on sales of SPINRAZA.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>31</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">TEGSEDI is a once weekly, self-administered subcutaneous medicine approved in the U.S., Europe, Canada and Brazil for the treatment of patients with polyneuropathy caused by hereditary TTR amyloidosis, or hATTR, a debilitating, progressive, and fatal disease. We launched TEGSEDI in the U.S. and the European Union, or EU, in late 2018. In 2021, we began selling TEGSEDI in Europe through our distribution agreement with Sobi. Additionally, in the second quarter of 2021, Sobi also began distributing TEGSEDI in the U.S. and Canada. In Latin America, PTC, through its exclusive license agreement with us, is commercializing TEGSEDI in Brazil and is working towards access in additional Latin American countries.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">WAYLIVRA is a once weekly, self-administered, subcutaneous medicine that received conditional marketing authorization in May 2019 from the European Commission, or EC, as an adjunct to diet in adult patients with genetically confirmed FCS and at high risk for pancreatitis. We launched WAYLIVRA in the EU in the third quarter of 2019. In 2021, we began selling WAYLIVRA in Europe through our distribution agreement with Sobi. Through our exclusive license agreement with PTC, we are working to expand access to WAYLIVRA across Latin America, beginning in Brazil. In the third quarter of 2021, the National Health Surveillance Agency (Ag&#234;ncia Nacional de Vigil&#226;ncia Sanit&#225;ria), or ANVISA, approved WAYLIVRA in Brazil. As a result of the approval, we earned a $4 million milestone payment from PTC.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our distribution agreements with Sobi, we retained the marketing authorizations for TEGSEDI and WAYLIVRA. We will continue to supply commercial product to Sobi and manage regulatory and manufacturing processes, as well as relationships with key opinion leaders. We will also continue to lead the TEGSEDI and WAYLIVRA global commercial strategy. In connection with the agreements, we restructured our European operations in the first quarter of 2021 and we restructured our North American TEGSEDI operations in the second quarter of 2021.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Medicines in Phase 3 Studies</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We currently have seven Phase 3 programs, which include:</div>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Tofersen: In October 2021, Biogen reported that tofersen did not meet the primary clinical endpoint in the Phase 3 VALOR study; however, trends favoring tofersen were seen across multiple secondary and exploratory measures of disease activity and clinical function</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Given the high unmet medical need, </span>Biogen will expand its ongoing early access program, or EAP, to the broader SOD1-ALS population</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Biogen is actively engaging with regulators, the medical community, patient advocacy groups and other key stakeholders around the world to determine potential next steps</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The Phase 3 ATLAS study in patients with presymptomatic SOD1-ALS is ongoing</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Eplontersen: We achieved full enrollment in the NEURO-TTRansform Phase 3 study with data expected mid-2022 and enrollment is ongoing in the CARDIO-TTRansform Phase 3 study</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Pelacarsen: In August 2021, Novartis achieved 50 percent enrollment in Novartis&#8217; Lp(a) HORIZON Phase 3 cardiovascular outcome study</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">ION363: In April 2021, we initiated a Phase 3 study in patients with FUS-ALS, the most common cause of juvenile-onset ALS</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Olezarsen: Enrollment is ongoing in the BALANCE Phase 3 study in patients with FCS and in October 2021, we initiated the Phase 3 CORE study in patients with sHTG</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">COVID-19</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As a company focused on improving the health of people around the world, our priority during the COVID-19 pandemic is the safety of our employees, their families, the healthcare workers who work with us and the patients who rely on our medicines. We are also focused on maintaining the quality of our studies and minimizing the impact to timelines. While the COVID-19 pandemic has impacted some areas of our business, we believe our mitigation efforts and financial strength will enable us to continue to manage through the pandemic and execute on our strategic initiatives. Because the situation is extremely fluid, we are continuing to evaluate the impact COVID-19 could have on our business, including the impact on our commercial products and the medicines in our pipeline.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Financial Highlights</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following is a summary of our financial results (in millions):</div>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: top;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: top;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
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    <td valign="bottom" style="vertical-align: top; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
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    <td valign="bottom" style="vertical-align: top;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: top;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
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    <td valign="bottom" style="vertical-align: top; width: 52%; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total revenue</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">133.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">160.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">370.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">439.0</div></td>
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    <td valign="bottom" style="vertical-align: top; width: 52%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total operating expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">218.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">196.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">621.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">588.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: top; width: 52%; background-color: #CCEEFF;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss from operations</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(85.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(36.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(250.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(149.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: top; width: 52%;"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(82.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(36.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(253.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(124.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
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<div><br /></div>
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zfd851b8e603a441ea72c7834a0e76718">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our commercial revenue for the first nine months of 2021 included SPINRAZA royalties, TEGSEDI and WAYLIVRA revenue and licensing and royalties. Our revenue from SPINRAZA royalties decreased during the first nine months of 2021 compared to the same period in 2020. As a result of our distribution agreements with Sobi for TEGSEDI and WAYLIVRA, our commercial revenue from product sales shifted to revenue from distribution fees based on net sales generated by Sobi. We completed the transition of our TEGSEDI and WAYLIVRA commercial operations in Europe and our TEGSEDI commercial operations in North America to Sobi in the first and second quarters of 2021, respectively.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We earn our R&amp;D revenue from multiple sources that can fluctuate depending on the timing of events. Our R&amp;D revenue decreased in the first nine months of 2021 compared to the same period in 2020 primarily because we earned more milestone payments in the first nine months of 2020 than in the same period in 2021. In the third quarter of 2021, we earned a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 study of pelacarsen. We expect our R&amp;D revenue to increase in the fourth quarter of 2021 compared to the first three quarters of 2021 as several of our partnered programs advance.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our operating expenses increased in the first nine months of 2021 over the same period last year, principally due to our investments in advancing our late-stage wholly owned pipeline, including advancing the Phase 3 program for eplontersen and start-up costs associated with the initiation of the Phase 3 study for a second indication for olezarsen. Additionally, we recognized $35 million in R&amp;D expense in the third quarter of 2021 for licensing Bicycle&#8217;s technology. These increases were partially offset by a decrease in our SG&amp;A expenses, including non-cash compensation expense, primarily due to cost savings we realized from integrating Akcea and restructuring our commercial operations.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We expect our operating expenses to continue to increase during the fourth quarter of 2021 compared to the first three quarters of 2021 as we continue to advance our strategic priorities, including our wholly owned pipeline. For example, in the fourth quarter of 2021, we expect to incur additional R&amp;D expenses related to the Phase 3 CORE study for olezarsen </span>in patients with sHTG.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We ended the third quarter of 2021, with $2.0 billion in cash and short-term investments. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In April 2021, we issued $632.5 million of 0% senior convertible notes due in April 2026 and repurchased $247.9 million of our 1% senior convertible notes. In conjunction with these transactions, we also executed a call spread to increase the effective conversion price of the 0% senior convertible notes to $76.39. We intend to pay the remaining principal balance of our 1% senior convertible notes with $62 million of cash at maturity in November 2021. We believe our strong financial position should enable us to continue to execute on our corporate goals throughout this year and beyond, including developing and commercializing medicines within our wholly owned pipeline.</span></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>33</span></div>
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<div style="text-align: left;"><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Recent Business Updates</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Third Quarter 2021 Marketed Products Highlights</div>
<div><br /></div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">SPINRAZA&#174;: the global market leader for the treatment of spinal muscular atrophy (SMA) patients of all ages</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z477a2e3bfe3343a78b736e4fd6707f6d">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$444 million in worldwide sales in the third quarter</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z13a6798deb23400db79d1fde96e3e538">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">More than 11,000 patients worldwide on therapy at the end of the third quarter across commercial, expanded access and clinical trial settings</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Biogen plans to initiate the Phase 3b ASCEND study evaluating the potential benefit of an investigational higher dose of nusinersen in children, teens and adults with later-onset SMA previously treated with Evrysdi&#174; (risdiplam)</div></td>
  </tr>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">TEGSEDI&#174; and WAYLIVRA&#174;: important medicines approved for the treatment of patients with severe rare diseases</div></td>
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">TEGSEDI achieved innovative drug pricing in Brazil reflecting the significant unmet medical need and prevalence of TTR polyneuropathy in Brazil</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zbe2dd5654f874d04a607427afdfd846e">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">WAYLIVRA was approved in Brazil as the first and only treatment for patients with familial chylomicronemia syndrome</div></td>
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<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Third Quarter 2021 and Recent Events</div>
<div><br /></div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Advancing Ionis&#8217; leading cardiovascular and metabolic disease pipeline</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z18aa65c857174e4d80eeaeb153b96377">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Initiated the Phase 3 CORE study of olezarsen (IONIS-APOCIII-L<sub>Rx</sub>) in patients with severe hypertriglyceridemia (sHTG)</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z0cd428b13d9942738ed6f7cc07fdd27e">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Reached 50 percent enrollment in the Phase 3 Lp(a) HORIZON outcome study of pelacarsen for patients with established cardiovascular disease and elevated Lp(a), resulting in a $25 million payment from Novartis</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zccd2e8a6f0604a3594d7e096b244fff5">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Achieved full enrollment in the Bayer Phase 2b RE-THINc ESRD study of fesomersen (IONIS-FXI-L<sub>Rx</sub>), with data expected in the first half of 2022</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z3a585240e69d464eb473d667ed5f58e4">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Achieved proof-of-mechanism, a strong indication of proof-of-concept and good safety and tolerability in a Phase 2 study and a preliminary assessment from an open-label extension study of cimdelirsen (IONIS-GHR-L<sub>Rx</sub>) in acromegaly patients uncontrolled on standard of care therapy, supporting continued development. Data from the ongoing open-label extension study and monotherapy study are expected in 2022. The results from the Phase 2 study of cimdelirsen are posted to Ionis&#8217; website</div></td>
  </tr>
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<div><br /></div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Addressing substantial unmet medical need with Ionis&#8217; broad neurological disease pipeline</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z896dd01b711a47ed844b8c46d5cc4bf3">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The Biogen Phase 3 VALOR study of tofersen in patients with SOD1-ALS did not meet the primary endpoint of change from baseline to week 28 in the ALS Functional Rating Scale-Revised (ALSFRS-R); however, signs of reduced disease progression across multiple secondary and exploratory endpoints were observed</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z6117dd83f69b4bf998b4ae0ea1a5ab3c">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Achieved full enrollment in the Phase 3 NEURO-TTRansform study of eplontersen in patients with TTR polyneuropathy, with data expected in mid-2022</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z477fc2e6ffd649bea1db509a480008e1">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Reported data from the Biogen Phase 1/2 study of IONIS-MAPT<sub>Rx</sub> in patients with Alzheimer&#8217;s disease, demonstrating durable, time and dose-dependent reductions in CSF tau protein; IONIS-MAPT<sub>Rx</sub> was generally well tolerated</div></td>
  </tr>
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<div><br /></div>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Investing in expanding the reach of Ionis&#8217; technology</div></td>
  </tr>
</table>
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z230e7514c444417a8c7b15758682cf30">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Entered a license agreement with Bicycle Therapeutics for exclusive rights to Bicycle&#8217;s peptide technology targeting transferrin receptor 1 to expand the capabilities of Ionis&#8217; LICA technology</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="za41671b73bb344e2a1432432b7a507d6">
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Entered a license agreement with Flamingo Therapeutics for the development and commercialization of programs from Ionis&#8217; oncology pipeline</div></td>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>34</span></div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Business Segment</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In 2021, we began operating as a single segment, Ionis operations, because our chief decision maker reviews operating results on an aggregate basis and manages our operations as a single operating segment. Previously, we had operated as two operating segments, Ionis Core and Akcea Therapeutics. We completed the Akcea Merger in October 2020 and fully integrated Akcea&#8217;s operations into ours as of January 1, 2021.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Critical Accounting Estimates</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We prepare our condensed consolidated financial statements in conformity with accounting principles generally accepted in the U.S. As such, we make certain estimates, judgments and assumptions that we believe are reasonable, based upon the information available to us. These judgments involve making estimates about the effect of matters that are inherently uncertain and may significantly impact our quarterly or annual results of operations and financial condition. Each quarter, our senior management reviews the development, selection and disclosure of such estimates with the audit committee of our board of directors. The following are our significant accounting estimates, which we believe are the most critical to aid in fully understanding and evaluating our reported financial results:</div>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Assessing the propriety of revenue recognition and associated deferred revenue; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Determining the appropriate cost estimates for unbilled preclinical studies and clinical development activities</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In the first quarter of 2021, we determined the estimation of our income taxes was no longer a critical accounting estimate because we recorded a valuation allowance against the entirety of our net deferred tax assets in the fourth quarter of 2020. We recorded the expected impact from the valuation allowance on our tax provision for 2021.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">There have been no other material changes to our critical accounting policies and estimates from the information provided in Item 7, &#8220;Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations&#8221; included in our Annual Report on Form 10-K for the year ended</span>&#xA0;December 31, 2020.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Results of Operations</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Revenue</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Total revenues for the three and nine months ended September 30, 2021 were $</span>133.1<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million and $</span>370.5<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million, respectively, compared to $</span>160.1<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million and $</span>439.0<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million for the same periods in 2020 and were comprised of the following (amounts in millions):</span></div>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
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    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
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    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">46.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">50.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">95.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">255.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">269.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amortization from upfront payments</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">16.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">18.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">56.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">68.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Milestone payments</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">28.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">43.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">48.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">73.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">License fees</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other services</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total R&amp;D revenue</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">48.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">64.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">115.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">170.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 81pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total revenue</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">133.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">160.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">370.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">439.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>35</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
<div></div>
</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our commercial revenue for the first nine months of 2021 included SPINRAZA royalties, TEGSEDI and WAYLIVRA revenue and licensing and royalties. Our revenue from SPINRAZA royalties decreased during the first nine months of 2021 compared to the same period in 2020. As a result of our distribution agreements with Sobi for TEGSEDI and WAYLIVRA, our commercial revenue from product sales shifted to revenue from distribution fees based on net sales generated by Sobi. We completed the transition of our TEGSEDI and WAYLIVRA commercial operations in Europe and our TEGSEDI commercial operations in North America to Sobi in the first and second quarters of 2021, respectively. Additionally, in the third quarter of 2021, we earned a $4 million milestone payment from PTC when WAYLIVRA was approved in Brazil.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We earn our R&amp;D revenue from multiple sources that can fluctuate depending on the timing of events. Our R&amp;D revenue decreased in the first nine months of 2021 compared to the same period in 2020 primarily because we earned more milestone payments in the first nine months of 2020 than in the same period in 2021. In the third quarter of 2021, we earned a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 study of pelacarsen. We expect our R&amp;D revenue to increase in the fourth quarter of 2021 compared to the first three quarters of 2021 as several of our partnered programs advance.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Operating Expenses</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our operating expenses were as follows (in millions):</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z591980edffe94e76959a91345a5df9b9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Operating expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">185.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">150.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">453.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Restructuring expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">24.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total operating expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">188.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">150.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">522.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">453.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">30.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">45.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">98.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">135.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total operating expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">218.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">196.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">621.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">588.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Operating expenses, excluding non-cash compensation expense related to equity awards, for the first nine months of 2021 increased compared to the same period in 2020. The increase was principally due to our investments in advancing our late-stage wholly owned pipeline, including advancing the Phase 3 program for eplontersen and start-up costs associated with the initiation of the Phase 3 study for a second indication for olezarsen. Additionally, in the third quarter of 2021, we recognized $35 million in R&amp;D expense for licensing Bicycle&#8217;s technology as discussed above. We also incurred approximately $24 million in costs related to the Akcea Merger and restructuring our commercial operations, primarily comprised of severance and retention costs. These increases were partially offset by a decrease in our SG&amp;A expenses, primarily due to cost savings we realized from integrating Akcea and restructuring our commercial operations.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We expect our operating expenses to increase during the fourth quarter of 2021 compared to the first three quarters of 2021 as we continue to advance our strategic priorities, including our wholly owned pipeline. For example, in the fourth quarter of 2021, we expect to incur additional R&amp;D expenses related to the Phase 3 CORE study for </span>olezarsen<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#xA0;</span>in patients with sHTG.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">To analyze and compare our results of operations to other similar companies, we believe it is important to exclude non-cash compensation expense related to equity awards from our operating expenses. We believe non-cash compensation expense related to equity awards is not indicative of our operating results or cash flows from our operations. Further, we internally evaluate the performance of our operations excluding it.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Cost of Sales</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our cost of sales consisted of manufacturing costs, including certain fixed costs, transportation and freight, indirect overhead costs associated with the manufacturing and distribution of TEGSEDI and WAYLIVRA and certain associated period costs. Prior to the regulatory approval of TEGSEDI and WAYLIVRA, we expensed as R&amp;D expense a significant portion of the cost of producing TEGSEDI and WAYLIVRA that we are using in the commercial launches. We expect cost of sales to increase as we deplete these inventories.</div>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>36</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
<div></div>
</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our cost of sales were as follows (in millions):</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z243d987a3d334b7d83f3bd671552c075" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Cost of sales, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total cost of sales</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our cost of sales, excluding non-cash compensation expense related to equity awards, for the first nine months of 2021 were consistent with the same period in 2020.</div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Research, Development and Patent Expenses</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our research, development and patent expenses consist of expenses for antisense drug discovery, antisense drug development, manufacturing and development chemistry and R&amp;D support expenses.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table sets forth information on research, development and patent expenses (in millions):</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z334e713f84d740c0ac9e4f661f2a5cf6" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">159.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">99.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">383.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">287.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Restructuring expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total research, development and patent expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">161.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">99.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">391.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">287.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">23.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">25.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">72.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">76.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total research, development and patent expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">184.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">125.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">463.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">364.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Antisense Drug Discovery</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We use our proprietary antisense technology to generate information about the function of genes and to determine the value of genes as drug discovery targets. We use this information to direct our own antisense drug discovery research, and that of our partners. Antisense drug discovery is also the function that is responsible for advancing our antisense core technology. This function is also responsible for making investments in complementary technologies to expand the reach of our technology.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As we continue to advance our antisense technology, we are investing in our drug discovery programs to expand our pipeline.</div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our antisense drug discovery expenses were as follows (in millions):</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z17d23f64273949c9848976a50caf1662" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Antisense drug discovery expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">55.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">20.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">105.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">57.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">17.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">18.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total antisense drug discovery expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">61.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">123.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">75.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Antisense drug discovery expenses, excluding non-cash compensation expense related to equity awards, increased for the first nine months of 2021 compared to the same period in 2020. In the third quarter of 2021, we recognized $35 million in R&amp;D expense for licensing Bicycle&#8217;s technology as discussed above. This increase was also due to expenses we incurred related to advancing our research programs and investments we made to enhance our antisense technology.</div>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>37</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
<div></div>
</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Antisense Drug Development</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table sets forth drug development expenses, including expenses for our marketed medicines and those in Phase 3 development for which we have incurred significant costs (in millions):</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z5855266691354c958ddd996124e94e8d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">TEGSEDI</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">WAYLIVRA</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.0</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">23.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">75.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">65.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">20.9</div></td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">61.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">54.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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  <tr>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">82.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
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    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">219.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">161.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">32.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total antisense drug development expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">251.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">199.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Our development expenses, excluding non-cash compensation expense related to equity awards, increased for the first nine months of 2021 compared to the same period in 2020 primarily due to our broad Phase 3 program for </span>eplontersen<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, which we initiated in late 2019. Additionally, we advanced other medicines in our wholly owned pipeline, including olezarsen, for which we initiated a Phase 3 program in patients with FCS in the fourth quarter of 2020 and incurred start-up costs associated with the initiation of a Phase 3 program in patients with sHTG in the fourth quarter of 2021 and ION363, for which we initiated a Phase 3 program in patients with FUS-ALS in the second quarter of 2021. In addition, our development overhead expenses increased year-over-year to support the growth of our Phase 3 programs and other mid-stage pipeline activities.</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We may conduct multiple clinical trials on a drug candidate, including multiple clinical trials for the various indications we may be studying. Furthermore, as we obtain results from trials, we may elect to discontinue clinical trials for certain drug candidates in certain indications in order to focus our resources on more promising drug candidates or indications. Our Phase 1 and Phase 2 programs are clinical research programs that fuel our Phase 3 pipeline. When our medicines are in Phase 1 or Phase 2 clinical trials, they are in a dynamic state in which we may adjust the development strategy for each medicine. Although we may characterize a medicine as &#8220;in Phase 1&#8221; or &#8220;in Phase 2,&#8221; it does not mean that we are conducting a single, well-defined study with dedicated resources. Instead, we allocate our internal resources on a shared basis across numerous medicines based on each medicine&#8217;s particular needs at that time. This means we are constantly shifting resources among medicines. Therefore, what we spend on each medicine during a particular period is usually a function of what is required to keep the medicines progressing in clinical development, not what medicines we think are most important. For example, the number of people required to start a new study is large, the number of people required to keep a study going is modest and the number of people required to finish a study is large. However, such fluctuations are not indicative of a shift in our emphasis from one medicine to another and cannot be used to accurately predict future costs for each medicine. And, because we always have numerous medicines in preclinical and early stage clinical research, the fluctuations in expenses from medicine to medicine, in large part, offset one another. If we partner a medicine, it may affect the size of a trial, its timing, its total cost and the timing of the related costs.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Manufacturing and Development Chemistry</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expenditures in our manufacturing and development chemistry function consist primarily of personnel costs, specialized chemicals for oligonucleotide manufacturing, laboratory supplies and outside services. Our manufacturing and development chemistry function is responsible for providing drug supplies to antisense drug development and our collaboration partners. Our manufacturing procedures include testing to satisfy good laboratory and good manufacturing practice requirements.</div>
<div><br /></div>
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<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>38</span></div>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our manufacturing and development chemistry expenses were as follows (in millions):</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="ze51708f3d2624358b22f40178b72f58c" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Manufacturing and development chemistry expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">31.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">38.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Restructuring expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total manufacturing and development chemistry expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">32.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">38.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total manufacturing and development chemistry expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">41.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">47.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Manufacturing and development chemistry expenses, excluding non-cash compensation expense related to equity awards, decreased for the first nine months of 2021 compared to the same period in 2020. In the first nine months of 2020, we manufactured API for olezarsen and eplontersen.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">R&amp;D Support</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In our research, development and patent expenses, we include support costs such as rent, repair and maintenance for buildings and equipment, utilities, depreciation of laboratory equipment and facilities, amortization of our intellectual property, informatics costs, procurement costs and waste disposal costs. We call these costs R&amp;D support expenses.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table sets forth information on R&amp;D support expenses (in millions):</div>
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<table cellpadding="0" cellspacing="0" id="z5e081e182a4e4750888b68b37584e5b4" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
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    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Personnel costs</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Occupancy</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Patent expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Insurance</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Computer software and licenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Restructuring expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
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    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total R&amp;D support expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">34.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">30.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">12.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total R&amp;D support expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">16.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">47.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">42.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">R&amp;D support expenses, excluding non-cash compensation expense related to equity awards, increased for the first nine months of 2021 compared to the same period in 2020. The increase was primarily related to increased personnel and occupancy costs to support investments in our technology and advancing our pipeline.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Selling, General and Administrative Expenses</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative, or SG&amp;A, expenses include personnel and outside costs associated with the pre-commercialization and commercialization activities for our medicines and costs to support our company, our employees and our stockholders including, legal, human resources, investor relations, and finance. Additionally, we include in selling, general and administrative expenses such costs as rent, repair and maintenance of buildings and equipment, depreciation and utilities costs that we need to support the corporate functions listed above. We also include fees we owe under our in-licensing agreements related to SPINRAZA.</div>
<div><br /></div>
<div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
<div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>39</span></div>
</div>
<div style="page-break-after:always;"><hr style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;" /></div>
<div></div>
</div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table sets forth information on SG&amp;A expenses (in millions):</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z736f3fb8543d4106a7c85362321c1827" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expenses, excluding non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">23.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">48.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">106.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">158.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Restructuring expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">16.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total selling, general and administrative expenses, excluding non-cash compensation related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">24.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">48.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">122.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">158.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash compensation expense related to equity awards</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">20.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">57.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total selling, general and administrative expenses</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">31.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">68.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">148.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">215.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">SG&amp;A expenses, excluding non-cash compensation expense related to equity awards, decreased for the first nine months of 2021 compared to the same period in 2020 due to operating efficiencies achieved from the Akcea integration and restructuring our commercial operations. Non-cash compensation expense related to equity awards decreased for the first nine months of 2021 compared to the same period in 2020 due to reduced headcount as a result of the Akcea Merger and restructuring our commercial operations.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Investment Income</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Investment income for the three and nine months ended&#xA0;September 30, 2021 was $0.9 million and $8.2 million, respectively, compared to $6.5 million and $25.9 million for the same periods in 2020. The decrease in investment income was primarily due to a decline in interest rates during the three and nine months ended&#xA0;September 30, 2021 compared to the same periods in 2020.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Interest Expense</div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table sets forth information on interest expense (in millions):</div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z404fdb5fc0c64a0f96cdf8b27c278eb5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"></div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="6" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Convertible notes:</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Non-cash amortization of the debt discount and debt issuance costs</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%;"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest expense payable in cash</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest on mortgages for primary R&amp;D and manufacturing facilities</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.8</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total interest expense</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.4</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z57ff5fdd1e4a412d81a3583922704597">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Gain on Investments</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recorded a gain on investments of $4.9 million for the nine months ended September 30, 2021 compared to $10.7 million for the same period in 2020. During the nine months ended September 30, 2021, we revalued our investments in Bicycle and ProQR and recognized gains of $1.9 million and $2.0 million on our investments, respectively. During the nine months ended September 30, 2020, we revalued our investments in <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Dynacure and Suzhou-Ribo because the companies sold additional equity securities that were similar to those we own. These observable price changes resulted in us recognizing a $6.3 million gain on our investment in Dynacure and a $3 million gain on our investment in Suzhou-Ribo in our condensed consolidated statement of operations during</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> the nine months ended September 30, 2020.</span></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>40</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Early Retirement of Debt</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As a result of the debt offering and debt repurchase completed in April 2021, we recorded an $8.6 million non-cash loss on early retirement of debt, reflecting the early retirement of a significant portion of our 1% Notes. The non-cash loss on the early retirement of our debt is the difference between the amount we paid to retire our 1% Notes and the net carrying balance of the liability at the time that we retired the debt.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Income Tax Expense (Benefit)</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recorded an income tax benefit of $1.3 million and $0.9 million for the three and nine months ended September 30, 2021, respectively.&#160; The income tax benefit recorded for the three months ended September 30, 2021 relates primarily to a reduction in our estimated state income tax liability.&#160; We recorded income tax expense of $5.1 million and $4.1 million for the three and nine months ended September 30, 2020, respectively.&#160; The income tax expense recorded for the first nine months of 2020 relates primarily to Ionis&#8217; standalone income for the period.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Net Loss</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We had a net loss of $82.5 million and $253.2 million for the three and nine months ended&#xA0;September 30, 2021, respectively, compared to $36.6 million and $124.1 million for the same periods in 2020. Our net loss increased for the nine months ended&#xA0;September 30, 2021, compared to the same period in 2020 primarily due to decreased revenue and increased expenses year-over-year, as discussed above in the revenue and expenses sections, respectively.</div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Net Loss Attributable to Noncontrolling Interest in Akcea Therapeutics, Inc.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">During the first nine months of 2020, we owned approximately 76 percent of Akcea. The shares of Akcea third parties owned represented an interest in Akcea&#8217;s equity that we did not control. However, because we maintained overall control of Akcea through our voting interest, we reflected Akcea&#8217;s results of operations in our condensed consolidated financial statements. We reflected the noncontrolling interest attributable to other owners of Akcea&#8217;s common stock in a separate line called &#8220;Net loss attributable to noncontrolling interest in Akcea&#8221; on our statement of operations. Our noncontrolling interest in Akcea on our statement of operations for the three and </span>nine months ended September 30, 2020, was a loss of $12.1 million and $34.3 million, respectively. After we completed the Akcea Merger in October 2020, we no longer recorded any adjustment related to noncontrolling interest for Akcea&#8217;s net loss.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Net Loss Attributable to Our Common Stockholders<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and Net Loss per Share</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We had a net loss attributable to our common stockholders of $82.5 million and $253.2 million for the three and nine months ended&#xA0;September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, respectively. </span>We had a net loss attributable to our common stockholders of $24.5 million and $89.7 million for the same periods in 2020.&#160; <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Basic and diluted net loss per share for the three and </span>nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#xA0;</span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> were $</span>0.58<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and $</span>1.80<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, respectively, compared to $</span>0.18<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and $</span>0.64<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> for the same periods in 2020.</span></div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Liquidity and Capital Resources</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We have financed our operations primarily from research and development collaborative agreements. We also finance our operations from commercial revenue from SPINRAZA royalties and TEGSEDI and WAYLIVRA commercial revenue. From our inception through </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, we have earned approximately</span> $5.4&#xA0;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">billion in revenue. We have also financed our operations through the sale of our equity securities and the issuance of long-term debt. From the time we were founded through</span>&#xA0;September 30, 2021, we have raised net proceeds of approximately $2.0 billion from the sale of our equity securities. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Additionally, from our inception through </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, we have borrowed approximately</span> $2.1 billion under long-term debt arrangements to finance a portion of our operations.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our cash, cash equivalents and short-term investments, debt obligations and working capital increased from December 31, 2020 to September 30, 2021, primarily as a result of issuing $632.5 million of 0% Notes (due in April 2026) and repurchasing $247.9 million of our 1% Notes in April 2021.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>41</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes our contractual obligations as of September 30, 2021. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The table provides a breakdown of when obligations become due. We provide a more detailed description of the major components of our debt in the paragraphs following the table:</span></div>
<div><br /></div>
<table cellpadding="0" cellspacing="0" id="z6702752ce62c4ddfb5004bc07448d8d7" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
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    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Contractual Obligations</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="10" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Payments Due by Period (in millions)</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
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    <td valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(selected balances described below)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Total</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Less than 1 year</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; padding-bottom: 2px;">&#160;</td>
    <td colspan="2" valign="bottom" style="vertical-align: bottom; border-bottom: #000000 solid 2px;"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">More than 1 year</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0% Notes (principal payable)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">632.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">632.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.125% Notes (principal and interest payable)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">551.2</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">550.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
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    <td valign="bottom" style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1% Notes (principal and interest payable)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">62.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">62.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Building mortgage payments (principal and interest payable)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">74.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">71.5</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Operating leases</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">27.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3.7</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">23.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%; padding-bottom: 2px;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other obligations (principal and interest payable)</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.0</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.9</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;">&#160;</td>
  </tr>
  <tr>
    <td valign="bottom" style="vertical-align: bottom; width: 64%; padding-bottom: 4px; background-color: #CCEEFF;"><div style="text-align: left; text-indent: -10pt; margin-left: 10pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,348.6</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">69.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;">&#160;</td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,279.3</div></td>
    <td colspan="1" valign="bottom" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;">&#160;</td>
  </tr>
</table>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our contractual obligations consist primarily of our convertible debt. In addition, we also have facility mortgages, facility leases, equipment financing arrangements and other obligations. Due to the uncertainty with respect to the timing of future cash flows associated with our unrecognized tax benefits, we are unable to make reasonably reliable estimates of the period of cash settlement with the respective taxing authorities. Therefore, we have excluded our gross unrecognized tax benefits from our contractual obligations table above. We have not entered into, nor do we currently have, any off-balance sheet arrangements (as defined under SEC rules).</div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Convertible Debt and Call Spread</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Refer to our Convertible Debt and Call Spread accounting policies in Note 2, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, and Note 6, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Convertible Debt</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, in the Notes to our condensed consolidated financial statements for the significant terms of each convertible debt instrument.</span></div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Research and Development and Manufacturing Facilities</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In July 2017, we purchased the building that houses our primary R&amp;D facility for $79.4 million and our manufacturing facility for $14.0 million. We financed the purchase of these two facilities with mortgage debt of $60.4 million in total. Our primary R&amp;D facility mortgage has an interest rate of 3.88 percent. Our manufacturing facility mortgage has an interest rate of 4.20 percent. During the first five years of both mortgages, we are only required to make interest payments. Both mortgages mature in August 2027.</div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Operating Leases</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In September 2021, we entered into an operating lease agreement for office space located in Boston, Massachusetts with an initial term ending 91 months following the lease commencement date. We included our contractual obligations related to this operating lease agreement in the table above. Refer to the <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Note 2, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">in the Notes of our condensed consolidated financial statements for the significant terms of the operating lease agreement</span>.</div>
<div><br /></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Other Obligations</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In addition to contractual obligations, we had outstanding purchase orders as of September 30, 2021&#xA0;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">for the purchase of services, capital equipment and materials as part of our normal course of business.</span></div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We may enter into additional collaborations with partners which could provide for additional revenue to us and we may incur additional cash expenditures related to our obligations under any of the new agreements we may enter into. We currently intend to use our cash, cash equivalents and short-term investments to finance our activities. However, we may also pursue other financing alternatives, like issuing additional shares of our common stock, issuing debt instruments, refinancing our existing debt, or securing lines of credit. Whether we use our existing capital resources or choose to obtain financing will depend on various factors, including the future success of our business, the prevailing interest rate environment and the condition of financial markets generally.</div>
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    <td style="width: 72pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ITEM 3.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK</div></td>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are exposed to changes in interest rates primarily from our investments in certain short-term investments. We primarily invest our excess cash in highly liquid short-term investments of the U.S. Treasury and reputable financial institutions, corporations, and U.S. government agencies with strong credit ratings. We typically hold our investments for the duration of the term of the respective instrument. We do not utilize derivative financial instruments, derivative commodity instruments or other market risk sensitive instruments, positions or transactions to manage exposure to interest rate changes. Accordingly, we believe that, while the securities we hold are subject to changes in the financial standing of the issuer of such securities, we are not subject to any material risks arising from changes in interest rates, foreign currency exchange rates, commodity prices, equity prices or other market changes that affect market risk sensitive instruments.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are also exposed to changes in foreign currency exchange rates as we have foreign subsidiaries with functional currencies other than the U.S. dollar. We translate our subsidiaries&#8217; functional currencies into our reporting currency, the U.S. dollar. As a result, our financial position, results of operations and cash flows can be affected by market fluctuations in the foreign currencies to U.S. dollar exchange rate, which are difficult to predict. A hypothetical 10 percent change in foreign exchange rates during any of the periods presented would not have had a material impact on our condensed consolidated financial statements.</div>
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    <td style="width: 72pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ITEM 4.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">CONTROLS AND PROCEDURES</div></td>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We maintain disclosure controls and procedures that are designed to ensure that information we are required to disclose in our Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SEC&#8217;s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. We design and evaluate our disclosure controls and procedures recognizing that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance and not absolute assurance of achieving the desired control objectives.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As of our most recently completed fiscal year and as of the end of the period covered by this Quarterly Report on Form 10-Q, we carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer. Based on our evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of September 30, 2021. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">There have been no significant changes in our internal controls or in other factors that could significantly affect internal controls subsequent to</span>&#xA0;September 30, 2021.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We also performed an evaluation of any changes in our internal controls over financial reporting that occurred during our last fiscal quarter and that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting. We conducted this evaluation under the supervision of and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer. That evaluation did not identify any changes in our internal controls over financial reporting that occurred during our latest fiscal quarter and that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">PART II &#8212; OTHER INFORMATION</div>
<div><br /></div>
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    <td style="width: 72pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ITEM 1.</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">LEGAL PROCEEDINGS</div></td>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">From time to time, we are involved in legal proceedings arising in the ordinary course of our business. Periodically, we evaluate the status of each legal matter and assess our potential financial exposure. If the potential loss from any legal proceeding is considered probable and the amount can be reasonably estimated, we accrue a liability for the estimated loss. Significant judgment is required to determine the probability of a loss and whether the amount of the loss is reasonably estimable. The outcome of any proceeding is not determinable in advance. As a result, the assessment of a potential liability and the amount of accruals recorded are based only on the information available to us at the time. As additional information becomes available, we reassess the potential liability related to the legal proceeding, and may revise our estimates.</div>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">On August 5, 2021, four purported former stockholders of Akcea filed an action in the Delaware Court of Chancery captioned John Makris, et al. v. Ionis Pharmaceuticals, Inc., et al., C.A. No. 2021-0681, or the &#8220;Delaware Action.&#8221;&#160; The plaintiffs in the Delaware Action assert claims against (i) former members of Akcea&#8217;s board of directors; and (ii) Ionis, or collectively, the &#8220;Defendants.&#8221; The plaintiffs assert putatively direct claims on behalf of a purported class of former Akcea stockholders. The plaintiffs in the Delaware Action assert that the Defendants breached their fiduciary duties in connection with the October 2020 take-private transaction that we and Akcea entered into in which Akcea became a wholly owned subsidiary of Ionis. We believe that the claims asserted in the Delaware Action are without merit and plan to file a motion to dismiss in November 2021 pursuant to an agreed upon scheduling order that has been entered by the Court.</div>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">RISK FACTORS</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Investing in our securities involves a high degree of risk. You should carefully consider the following information about the risks described below, together with the other information contained in this report and in our other public filings in evaluating our business. If any of the following risks actually occur, our business could be materially harmed, and our financial condition and results of operations could be materially and adversely affected. As a result, the trading price of our securities could decline, and you might lose all or part of your investment. We have marked with an asterisk those risk factors that reflect substantive changes from the risk factors included in our Annual Report on Form 10-K for the year ended December 31, 2020.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Summary of Risk Factors</div>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">There are a number of risks related to our business and our securities. Some of the principal risks related to our business include the following:</div>
<div><br /></div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the impact on our operations and financial condition from the effects of the current COVID-19 pandemic;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our ability to generate substantial revenue from the sale of our medicines;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our and our partners&#8217; ability to compete effectively;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the availability of adequate coverage and payment rates for our medicines;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our ability to successfully manufacture our medicines;</div></td>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our ability to successfully develop and obtain marketing approvals for our medicines;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our ability to secure and maintain effective corporate partnerships;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our ability to sustain cash flows and achieve consistent profitability;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our ability to protect our intellectual property;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our ability to maintain the effectiveness of our personnel; and</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z6add792615d8408ea60e45dc273ccbfb">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the other factors set forth below.</div></td>
  </tr>
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<div><br /></div>
<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Risks Related to the COVID-19 Pandemic</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Our business could be materially adversely affected by the effects of health epidemics. To date, we believe the impacts of the recent COVID-19 pandemic on our business are limited and manageable.*</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 40.5pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our business could be materially adversely affected by health epidemics in regions where we or our partners are commercializing our medicines, have concentrations of clinical trial sites or other business operations, and could cause significant disruption in the operations of third-party manufacturers and contract research organizations upon whom we rely. For example, since December 2019, a novel strain of coronavirus, SARS-CoV-2, causing a disease referred to as COVID-19, has spread worldwide. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic, or the COVID-19 Pandemic, and the U.S. government-imposed restrictions on travel between the U.S., Europe and certain other countries. In addition, the Governor of the State of California and the Governor of the Commonwealth of Massachusetts, the states in which our offices are located, each declared a state of emergency related to the spread of COVID-19 and issued executive orders that directed residents to stay at home.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 40.5pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In response to these public health directives and orders, in March 2020, we implemented work-from-home policies for most of our employees globally and generally suspended business-related travel.&#160; In the U.S., as vaccinations have become more widely available, states have lifted restrictions implemented as part of the pandemic response and reopened their economies. In June 2021, the Governor of California terminated the vast majority of executive actions that were put in place beginning in March 2020, leaving only a subset of provisions that facilitate the ongoing recovery. In May 2021, the Commonwealth of Massachusetts also lifted most of its pandemic restrictions. We have modified our policies for our employees in California, Massachusetts, and internationally to align with current local guidance.&#160; We believe the effects of these work-from-home and travel policies have had a limited impact on our business.</div>
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<div style="text-align: justify; text-indent: 40.5pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">These public health directives and orders have impacted our and our partners&#8217; sales efforts. For example, some physician and hospital policies that have been put in place as a result of the COVID-19 Pandemic restrict in-person access by third parties, which has in some cases impacted our commercialization efforts for TEGSEDI and WAYLIVRA. Additionally, Biogen has reported that as a result of the COVID-19 Pandemic, SPINRAZA sales revenues have decreased in part because SPINRAZA doses have been delayed due, directly or indirectly, to the COVID-19 Pandemic, and that future SPINRAZA sales revenues may be adversely affected by continued dosing delays. These and similar, and perhaps more severe, disruptions in our or our partner&#8217;s commercial operations could materially impact our business, operating results and financial condition in the future.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 40.5pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Quarantines, shelter-in-place, executive and similar government orders, or the perception that such orders, shutdowns or other restrictions on the conduct of business operations could occur, could impact personnel at third-party manufacturing facilities in the U.S. and other countries, or the availability or cost of materials, which would disrupt our supply chain.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have experienced impacts to our clinical trial operations due to the COVID-19 Pandemic; however, we believe such impacts are limited and manageable. Some examples of these impacts include:</div>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z736bbcd734bf42c0906793e5ee8817d3">
  <tr>
    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">we have experienced some impact on clinical site initiation and patient enrollment due to restrictions imposed as a result of the COVID-19 Pandemic;</div></td>
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    <td style="width: 54pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">o</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, in March 2020, we instituted a temporary suspension of enrollment for new subjects in our Phase 3 studies of eplontersen based on advice from our trial advisory committee; however, enrollment has resumed.</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z43621f6d67b2489b9f8b14838acffbb1">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">some patients have not been able to meet protocol requirements, as quarantines have impeded patient movement and interrupted healthcare services;</div></td>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">we have experienced some delays in site initiations due to principle investigators and site staff focusing on and prioritizing COVID-19 patient care; and</div></td>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">we have experienced some delays in necessary interactions with regulators, ethics committees and other important agencies and contractors due to limitations in employee resources or forced furlough of government or contractor personnel.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The spread of COVID-19 has caused a broad impact globally. While the potential economic impact brought by, and the duration of, the COVID-19 Pandemic may be difficult to assess or predict, it could result in significant disruption of global financial markets, reducing our ability to access capital, which could in the future negatively affect our liquidity. In addition, a recession or market correction resulting from the spread of COVID-19 could materially affect our business and has and could continue to affect the value of our securities.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The global COVID-19 Pandemic continues to rapidly evolve. While we have not yet experienced material adverse effects to our business as a result of the COVID-19 Pandemic, the ultimate impact of the COVID-19 Pandemic or a similar health epidemic is highly uncertain and subject to change. As such, we do not yet know the full extent of delays or impacts on our business, our clinical trials, healthcare systems or the global economy as a whole. However, these effects could have a material impact on our operations, and we will continue to monitor the COVID-19 Pandemic closely.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Risks Related to the Commercialization of our Medicines</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">We have limited experience as a company in commercializing medicines, and we may have to invest significant resources to develop these capabilities. If we are unable to establish effective marketing, sales and distribution capabilities or enter into agreements with third parties to market, sell and distribute our medicines, we may not be able to generate revenue from our medicines.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have limited experience as a company in the marketing, sale and distribution of pharmaceutical products and there are significant risks involved in building and managing a sales organization, including our ability to hire, retain and incentivize qualified individuals, generate sufficient sales leads, provide adequate training to sales and marketing personnel and effectively manage a geographically dispersed sales and marketing team. Any failure to effectively manage our internal sales, marketing and distribution capabilities would adversely impact the commercialization of our medicines. In addition, we may not be able to enter into collaborations or hire consultants or external service providers to assist us in sales, marketing and distribution functions on acceptable financial terms, or at all. Even if we are able to engage third parties to market, sell and distribute our medicines, our product revenues and profitability may be lower if we rely on such third parties for these functions than if we were to perform them on our own. We also will likely have little control over such third parties, and any of them may fail to devote the necessary resources and attention to market, sell and distribute our medicines effectively. If we are not successful in commercializing our medicines, either on our own or through arrangements with one or more third parties, we may not be able to generate revenue from our medicines.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If the market does not accept our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development, we are not likely to generate substantial revenues or become consistently profitable.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Even if our medicines are authorized for marketing, including SPINRAZA, TEGSEDI and WAYLIVRA, our success will depend upon the medical community, patients and third-party payers accepting our medicines as medically useful, cost-effective, safe and convenient. Even when the FDA or foreign regulatory authorities authorize our or our partners&#8217; medicines for commercialization, doctors may not prescribe our medicines to treat patients. Furthermore, we and our partners may not successfully commercialize additional medicines.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additionally, in many of the markets where we or our partners may sell our medicines in the future, if we or our partners cannot agree with the government or other third-party payers regarding the price we can charge for our medicines, then we may not be able to sell our medicines in that market. Similarly, cost control initiatives by governments or third-party payers could decrease the price received for our medicines or increase patient coinsurance to a level that makes our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development, economically unviable.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The degree of market acceptance for our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development, depends upon a number of factors, including the:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">receipt and scope of marketing authorizations;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z178c92b50ab74ef4b70fd41ee78cb21a">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">establishment and demonstration in the medical and patient community of the efficacy and safety of our medicines and their potential advantages over competing products;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">cost and effectiveness of our medicines compared to other available therapies;</div></td>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">patient convenience of the dosing regimen for our medicines; and</div></td>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">reimbursement policies of government and third-party payers.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Based on the profile of our medicines, physicians, patients, patient advocates, payers or the medical community in general may not accept or use any medicines that we may develop.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, the product label for TEGSEDI in the U.S. has a boxed warning for thrombocytopenia and glomerulonephritis, requires periodic blood and urine monitoring, and TEGSEDI is only available through a Risk Evaluation and Mitigation Strategy, or REMS, program. Our main competition in the U.S. market for TEGSEDI is patisiran, marketed by Alnylam Pharmaceuticals, Inc. Although patisiran requires intravenous administration and pre-treatment with steroids, it does not have a boxed warning or REMS. Additionally, the product label for WAYLIVRA in the EU requires regular blood monitoring. In each case, these label requirements could negatively affect our ability to attract and retain patients for these medicines. We believe that the enhanced monitoring we have implemented to support early detection and management of these issues can help mitigate safety issues so that patients can continue treatment. Since implementation of the enhanced monitoring, serious platelet events have been infrequent. While we believe we can better maintain patients on TEGSEDI and WAYLIVRA through our patient-centric commercial approach where we or our partner plan to have greater involvement with physicians and patients, if we or our partner cannot effectively maintain patients on TEGSEDI or WAYLIVRA, including due to limitations or restrictions on the ability to conduct periodic blood and urine monitoring of our patients as a result of the current COVID-19 Pandemic, we may not be able to generate substantial revenue from TEGSEDI or WAYLIVRA sales.</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If we or our partners fail to compete effectively, our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development, will not contribute significant revenues.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our competitors engage in drug discovery throughout the world, are numerous, and include, among others, major pharmaceutical companies and specialized biopharmaceutical firms. Other companies are engaged in developing antisense technology. Our competitors may succeed in developing medicines that are:</div>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zc497d3842d2b4e25a0c017257010cfd1">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">priced lower than our medicines;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z570cd8243eec420ab8715ee73480b479">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">reimbursed more favorably by government and other third-party payers than our medicines;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="ze346775eb7cf40169cccb9ff099c788c">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">safer than our medicines;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z366ea023086f4122bb039cdd34794e5f">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">more effective than our medicines; or</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="za9a8e027061146c7a33eb4a6ecf6e961">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">more convenient to use than our medicines.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">These competitive developments could make our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development, obsolete or non-competitive.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Certain of our partners are pursuing other technologies or developing other medicines either on their own or in collaboration with others, including our competitors, to treat the same diseases our own collaborative programs target. Competition may negatively impact a partner&#8217;s focus on and commitment to our medicines and, as a result, could delay or otherwise negatively affect the commercialization of our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Many of our competitors have substantially greater financial, technical and human resources than we do. In addition, many of these competitors have significantly greater experience than we do in conducting preclinical testing and human clinical studies of new pharmaceutical products, in obtaining FDA and other regulatory authorizations of such products and in commercializing such products. Accordingly, our competitors may succeed in obtaining regulatory authorization for products earlier than we do.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">There are several pharmaceutical and biotechnology companies engaged in the development or commercialization in certain geographic markets of products against targets that are also targets of products in our development pipeline. For example:</div>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Onasemnogene abeparvovec and risdiplam compete with SPINRAZA;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Patisiran, tafamidis and tafamidis meglumine compete with TEGSEDI;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Vutrisiran and acoramidis could compete with TEGSEDI and </span>eplontersen<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">;</span></div></td>
  </tr>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">ARO-APOC3, lomitapide and gemcabene could compete with WAYLIVRA and olezarsen; and</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zceee991433724994b11c51226c6ea3f1">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Arimoclomol, ultomiris, mastinib and trehalose could compete with tofersen and ION363.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Specifically, SPINRAZA faces competition from onasemnogene abeparvovec, a gene therapy product that was approved in the U.S. in May 2019 and in the EU in May 2020 for the treatment of SMA, as well as risdiplam, an oral product for the treatment of SMA that was approved in the U.S. in August 2020. Biogen has disclosed that SPINRAZA revenue has decreased due in part to lower sales volumes as a result of increased competition and that future sales of SPINRAZA may be adversely affected by the commercialization of competing products. SPINRAZA injection for intrathecal use is an antisense medicine indicated for the treatment of SMA patients of all ages approved in over 50 countries.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additionally, companies that are developing medicines that target the same patient populations as our medicines in development may compete with us to enroll participants in the clinical trials for such medicines, which could make it more difficult for us to complete enrollment for these clinical trials.</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Certain of our medicines may compete with our other medicines, which could reduce our expected revenues.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Certain of our medicines inhibit the production of the same protein. For example, WAYLIVRA inhibits the production of the same protein as olezarsen and TEGSEDI inhibits the production of the same protein as eplontersen. We believe the enhancements we incorporated into olezarsen and eplontersen can provide greater patient convenience by allowing for significantly lower doses and less frequent administration compared to WAYLIVRA and TEGSEDI, respectively. As such, to the extent physicians and patients elect to use olezarsen or eplontersen instead of WAYLIVRA or TEGSEDI, respectively, it will reduce the revenue we derive from those medicines. In addition, while vupanorsen, olezarsen and WAYLIVRA use different mechanisms of action, if vupanorsen and olezarsen can effectively lower triglyceride levels in patients, including patients with FCS, WAYLIVRA, vupanorsen and olezarsen may compete with each other.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Our medicines could be subject to regulatory limitations following approval.*</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Following approval of a medicine, we and our partners must comply with comprehensive government regulations regarding the manufacture, marketing and distribution of medicines. Promotional communications regarding prescription medicines must be consistent with the information in the product&#8217;s approved labeling. We or our partners may not obtain the labeling claims necessary or desirable to successfully commercialize our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The FDA and foreign regulatory bodies have the authority to impose significant restrictions on an approved medicine through the product label and on advertising, promotional and distribution activities. For example:</div>
<div><br /></div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">in the U.S., TEGSEDI&#8217;s label contains a boxed warning for thrombocytopenia and glomerulonephritis;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z2319bf4c095a469ba668cf77868ce0dd">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">TEGSEDI requires periodic blood and urine monitoring; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">in the U.S., TEGSEDI is available only through a REMS program.</div></td>
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<div style="text-align: justify; text-indent: 39.6pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Prescription medicines may be promoted only for the approved indications in accordance with the approved label. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a company that is found to have improperly promoted off-label uses may be subject to significant liability.</div>
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<div style="text-align: justify; text-indent: 39.6pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In addition, when approved, the FDA or a foreign regulatory authority may condition approval on the performance of post-approval clinical studies or patient monitoring, which could be time consuming and expensive. For example, in connection with the conditional marketing approval for WAYLIVRA in the EU, we are required to conduct a post-authorization safety study to evaluate the safety of WAYLIVRA on thrombocytopenia and bleeding in FCS patients taking WAYLIVRA. If the results of such post-marketing studies are not satisfactory, the FDA, EC or other foreign regulatory authority may withdraw marketing authorization or may condition continued marketing on commitments from us or our partners that may be expensive and time consuming to fulfill.</div>
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<div style="text-align: justify; text-indent: 39.6pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If we or others identify side effects after any of our medicines are on the market, or if manufacturing problems occur subsequent to regulatory approval, or if we, our manufacturers or our partners fail to comply with regulatory requirements, we or our partners may, among other things, lose regulatory approval and be forced to withdraw products from the market, need to conduct additional clinical studies, incur restrictions on the marketing, distribution or manufacturing of the product, and/or change the labeling of our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA.</div>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">We depend on our collaboration with Biogen for the development and commercialization of SPINRAZA.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have entered into a collaborative arrangement with Biogen to develop and commercialize SPINRAZA. We entered into this collaboration primarily to:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">fund our development activities for SPINRAZA;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zb322f73054c54dd69c7bae7068eb8f13">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">seek and obtain regulatory approvals for SPINRAZA; and</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z96c299bd9626491895cd1066edc57765">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">successfully commercialize SPINRAZA.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are relying on Biogen to obtain additional regulatory approvals for SPINRAZA, manufacture and successfully commercialize SPINRAZA. In general, we cannot control the amount and timing of resources that Biogen devotes to our collaboration. If Biogen fails to further develop SPINRAZA, obtain additional regulatory approvals for SPINRAZA, manufacture or commercialize SPINRAZA, or if Biogen&#8217;s efforts are not effective, our business may be negatively affected.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our collaboration with Biogen may not continue for various reasons. Biogen can terminate our collaboration at any time. If Biogen stops developing or commercializing SPINRAZA, we would have to seek or spend additional funding, and SPINRAZA&#8217;s commercialization may be harmed or delayed.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our collaboration with Biogen may not result in the continued successful commercialization of SPINRAZA. If Biogen does not continue to successfully commercialize SPINRAZA, we will receive limited revenues for SPINRAZA.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">We are relying on third parties to market, sell and distribute TEGSEDI and WAYLIVRA.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have entered into agreements with third parties to commercialize TEGSEDI and WAYLIVRA as follows:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we entered into a distribution agreement with Sobi to commercialize TEGSEDI in the U.S. and Canada;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z45035a9a8d6c4d2ca173211141fecc64">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we entered into a distribution agreement with Sobi to commercialize TEGSEDI and WAYLIVRA in Europe; and</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z7b6163b6f89541e683161352fda768a9">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In August 2018, we granted PTC the exclusive right to commercialize TEGSEDI and WAYLIVRA in Latin America and certain Caribbean countries.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are relying on Sobi and PTC to effectively market, sell and distribute TEGSEDI and WAYLIVRA and have less control over sales efforts and may receive less revenue than if we commercialized TEGSEDI or WAYLIVRA by ourselves. If Sobi or PTC does not successfully commercialize TEGSEDI or WAYLIVRA, including as a result of delays or disruption caused by the current COVID-19 Pandemic, we may receive limited revenue for TEGSEDI or WAYLIVRA in the U.S., Canada, Europe, Latin America or certain Caribbean countries, which could have a material adverse effect on our business, prospects, financial condition and results of operations.</div>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Our operations are subject to additional healthcare laws.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our operations are subject to additional healthcare laws, including federal and state anti-kickback laws, false claims laws, transparency laws, such as the federal Sunshine Act, and health information privacy and security laws, which are subject to change at any time.&#160; For example, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">in November 2020, the U.S. Department of Health and Human Services issued a final rule modifying the anti-kickback law safe harbors for Medicare Part D plans, pharmacies, and pharmaceutical benefit managers.</span> Efforts to ensure that our operations comply with current applicable healthcare laws and regulations involve substantial costs. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. Penalties for violations of applicable healthcare laws and regulations may include significant civil, criminal and administrative penalties, damages, disgorgement, fines, imprisonment, exclusion of products from government funded healthcare programs, such as Medicare and Medicaid, and additional reporting requirements and oversight if we enter into a corporate integrity agreement or similar agreement to resolve allegations of non-compliance with these laws. In addition, violations may also result in reputational harm, diminished profits and future earnings.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If government or other third-party payers fail to provide adequate coverage and payment rates for our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development, our revenue will be limited.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In both domestic and foreign markets, sales of our current and future products will depend in part upon the availability of coverage and reimbursement from third-party payers. The majority of patients in the U.S. who would fit within our target patient populations for our medicines have their healthcare supported by a combination of Medicare coverage, other government health programs such as Medicaid, managed care providers, private health insurers and other organizations. Coverage decisions may depend upon clinical and economic standards that disfavor new medicines when more established or lower cost therapeutic alternatives are already available or subsequently become available. Assuming coverage is approved, the resulting reimbursement payment rates might not be enough to make our medicines affordable. Accordingly, SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development, will face competition from other therapies and medicines for limited financial resources. We or our partners may need to conduct post-marketing studies to demonstrate the cost-effectiveness of any future products to satisfy third-party payers. These studies might require us to commit a significant amount of management time and financial and other resources. Third-party payers may never consider our future products as cost-effective. Adequate third-party coverage and reimbursement might not be available to enable us to maintain price levels sufficient to realize an appropriate return on investment in product development.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Third-party payers, whether foreign or domestic, or governmental or commercial, are developing increasingly sophisticated methods of controlling healthcare costs. In addition, in the U.S., no uniform policy of coverage and reimbursement for medicines exists among third-party payers. Therefore, coverage and reimbursement for medicines can differ significantly from payer to payer. For example, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively, the Affordable Care Act, was passed in March 2010, and substantially changed the way healthcare is financed by both governmental and private insurers, and continues to significantly impact the U.S. pharmaceutical industry. There have been judicial and Congressional challenges to certain aspects of the Affordable Care Act, as well as efforts to repeal or replace certain aspects of the Affordable Care Act. On December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that the individual mandate was unconstitutional and remanded the case back to the District Court to determine whether the remaining provisions of the Affordable Care Act are invalid as well. However, in March 2020, before the District Court could rule on the remaining provisions of the Affordable Care Act, the U.S. Supreme Court agreed to review the case. In June 2021, the Supreme Court dismissed the case on the basis that the states and individuals that brought the lawsuit did not have standing to challenge the law.&#160; It is unclear how future litigation and healthcare reform measures will impact the Affordable Care Act and our business.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Further, we believe that future coverage, reimbursement and pricing will likely be subject to increased restrictions both in the U.S. and in international markets. In the U.S., recent health reform measures have resulted in reductions in Medicare and other healthcare funding, and there have been several recent U.S. Congressional inquiries, legislation and executive orders designed to, among other things, reduce drug prices (e.g., by supporting drug price negotiation in Medicare Parts B and D, with those negotiated prices also available to commercial plans, and progressing legislation to slow price increases over time on existing drugs), increase competition (e.g., by supporting legislation to speed the entry of biosimilar and generic drugs, including shortening the period of exclusivity, policies in Medicare Part B to increase the prescribing of biosimilars by physicians, and a prohibition on &#8220;pay-for-delay&#8221; agreements and anti-competitive practices by drug manufacturers), lower out-of-pocket drug costs for patients (e.g., by capping Medicare Part D beneficiary out-of-pocket pharmacy expenses), and foster scientific innovation to promote better health care and improved health (e.g., by</span>&#xA0;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">investing in public and private research and incentivizing the market to promote discovery of valuable and accessible new treatments). At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing. Third-party coverage and reimbursement for medicines may not be available or adequate in either the U.S. or international markets, and third-party payers, whether foreign or domestic, or governmental or commercial, may allocate their resources to address the current COVID-19 Pandemic or experience delays or disruptions in their ability to devote resources to coverage and reimbursement matters related to our products or medicines as a result of the COVID-19 Pandemic, which would negatively affect the potential commercial success of our products, our revenue and our profits.</span></div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If we cannot manufacture our medicines or contract with a third party to manufacture our medicines at costs that allow us to charge competitive prices to buyers, we cannot market our products profitably.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">To successfully commercialize any of our medicines, we would need to optimize and manage large-scale commercial manufacturing capabilities either on a standalone basis or through a third-party manufacturer. We rely on third-party manufacturers to supply the drug substance and drug product for TEGSEDI and drug product for WAYLIVRA. Any delays or disruption to our own or third-party commercial manufacturing capabilities, including any interruption to our supply chain as a result of the current COVID-19 Pandemic, could limit the commercial success of our medicines. In addition, as our drug development and commercial pipeline increases and matures, we will have a greater need for clinical trial and commercial manufacturing capacity. For example, we have plans to expand our manufacturing infrastructure to support our wholly owned pipeline. If we are not successful in executing this expansion, it could limit our ability to meet our manufacturing requirements and commercial objectives in the future.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additionally, we have limited experience manufacturing pharmaceutical products of the chemical class represented by our medicines, called oligonucleotides, on a commercial scale for the systemic administration of a medicine. There are a small number of suppliers for certain capital equipment and raw materials that we use to manufacture our medicines, and some of these suppliers will need to increase their scale of production to meet our projected needs for commercial manufacturing. Further, we must continue to improve our manufacturing processes to allow us to reduce our drug costs. We or our partners may not be able to manufacture our medicines at a cost or in quantities necessary to make commercially successful products.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Also, manufacturers, including us, must adhere to the FDA&#8217;s cGMP regulations and similar regulations in foreign countries, which the applicable regulatory authorities enforce through facilities inspection programs. We, our partners and our contract manufacturers may not comply or maintain compliance with cGMP, or similar foreign regulations. Non-compliance could significantly delay or prevent receipt of marketing authorizations for our medicines, including authorizations for SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development, or result in enforcement action after authorization that could limit the commercial success of our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Risks Related to the Development and Regulatory Approval of our Medicines</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If we or our partners fail to obtain regulatory approval for our medicines and additional approvals for SPINRAZA, TEGSEDI and WAYLIVRA, we or our partners cannot sell them in the applicable markets.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We cannot guarantee that any of our medicines will be considered safe and effective or will be approved for commercialization. In addition, it is possible that SPINRAZA, TEGSEDI and WAYLIVRA may not be approved in additional markets or for additional indications. We and our partners must conduct time-consuming, extensive and costly clinical studies to demonstrate the safety and efficacy of each of our medicines before they can be approved or receive additional approvals for sale. We and our partners must conduct these studies in compliance with FDA regulations and with comparable regulations in other countries.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We and our partners may not obtain necessary regulatory approvals on a timely basis, if at all, for our medicines. It is possible that regulatory agencies will not approve our medicines for marketing or SPINRAZA, TEGSEDI or WAYLIVRA in additional markets or for additional indications. If the FDA or another regulatory agency believes that we or our partners have not sufficiently demonstrated the safety or efficacy of any of our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, or our medicines in development, the agency will not approve the specific medicine or will require additional studies, which can be time consuming and expensive and which will delay or harm commercialization of the medicine. For example, in August 2018 we received a complete response letter from the FDA regarding the new drug application for WAYLIVRA in which the FDA determined that the safety concerns identified with WAYLIVRA in our clinical development program outweighed the expected benefits of triglyceride lowering in patients with FCS. We also received a Non-W from Health Canada for WAYLIVRA in November 2018.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The FDA or other comparable foreign regulatory authorities can delay, limit or deny approval of a medicine for many reasons, including:</div>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">such authorities may disagree with the design or implementation of our clinical studies;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">we or our partners may be unable to demonstrate to the satisfaction of the FDA or other regulatory authorities that a medicine is safe and effective for any indication;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">such authorities may not accept clinical data from studies conducted at clinical facilities that have deficient clinical practices or that are in countries where the standard of care is potentially different from the U.S.;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">we or our partners may be unable to demonstrate that our medicine&#8217;s clinical and other benefits outweigh its safety risks to support approval;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">such authorities may disagree with the interpretation of data from preclinical or clinical studies;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">such authorities may find deficiencies in the manufacturing processes or facilities of third-party manufacturers who manufacture clinical and commercial supplies for our medicines, or may delay the inspection of such facilities due to restrictions related to the COVID-19 Pandemic; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the approval policies or regulations of such authorities or their prior guidance to us or our partners during clinical development may significantly change in a manner rendering our clinical data insufficient for approval.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Failure to receive marketing authorization for our medicines, or failure to receive additional marketing authorizations for SPINRAZA, TEGSEDI or WAYLIVRA, or delays in these authorizations, could prevent or delay commercial introduction of the medicine, and, as a result, could negatively impact our ability to generate revenue from product sales.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If the results of clinical testing indicate that any of our medicines are not suitable for commercial use, we may need to abandon one or more of our drug development programs.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Drug discovery and development has inherent risks and the historical failure rate for drugs is high. Antisense medicines are a relatively new approach to therapeutics. If we cannot demonstrate that our medicines are safe and effective for human use in the intended indication, we may need to abandon one or more of our drug development programs.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Even if our medicines are successful in preclinical and human clinical studies, the medicines may not be successful in late-stage clinical studies.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Successful results in preclinical or initial human clinical studies, including the Phase 2 results for some of our medicines in development, may not predict the results of subsequent clinical studies. If any of our medicines in Phase 3 clinical studies, including the studies of tofersen, pelacarsen, </span>eplontersen<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, olezarsen and ION363, do not show sufficient efficacy in patients with the targeted indication, or if such studies are discontinued for any other reason, it could negatively impact our development and commercialization goals for these medicines and our stock price could decline.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In the past, we have invested in clinical studies of medicines that have not met the primary clinical endpoints in their Phase 3 studies or have been discontinued for other reasons. For example, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">in October 2021, Biogen reported that tofersen did not meet the primary clinical endpoint in the Phase 3 VALOR study; however, trends favoring tofersen were seen across multiple secondary and exploratory measures of disease activity and clinical function. In addition, in March 2021, Roche decided to discontinue dosing in the Phase 3 GENERATION HD1 study of tominersen in patients with manifest Huntington&#8217;s disease based on the results of a pre-planned review of data from the Phase 3 study conducted by an unblinded Independent Data Monitoring Committee. Similar results could occur in clinical studies for our other medicines, including the studies of pelacarsen, </span>eplontersen<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, olezarsen and ION363.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">There are a number of factors that could cause a clinical study to fail or be delayed, including:</div>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the clinical study may produce negative or inconclusive results;</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">regulators may require that we hold, suspend or terminate clinical research for noncompliance with regulatory requirements;</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">we, our partners, the FDA or foreign regulatory authorities could suspend or terminate a clinical study due to adverse side effects of a medicine on subjects or lack of efficacy in the trial;</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">we, or our partners, may decide, or regulators may require us, to conduct additional preclinical testing or clinical studies;</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">enrollment in our clinical studies may be slower than we anticipate;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">we or our partners, including our independent clinical investigators, contract research organizations and other third-party service providers on which we rely, may not identify, recruit and train suitable clinical investigators at a sufficient number of study sites or timely enroll a sufficient number of study subjects in the clinical study;</div></td>
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    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the institutional review board for a prospective site might withhold or delay its approval for the study;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">enrollment in our clinical studies may be slower than we anticipate;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">people who enroll in the clinical study may later drop out due to adverse events, a perception they are not benefiting from participating in the study, fatigue with the clinical study process or personal issues;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zc069e8822cec47ecbf749de68078f851">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">a clinical study site may deviate from the protocol for the study;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the cost of our clinical studies may be greater than we anticipate;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our partners may decide not to exercise any existing options to license and conduct additional clinical studies for our medicines; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the supply or quality of our medicines or other materials necessary to conduct our clinical studies may be insufficient, inadequate or delayed.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The current COVID-19 Pandemic could make some of these factors more likely to occur.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In addition, our current medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, are chemically similar to each other. As a result, a safety observation we encounter with one of our medicines could have, or be perceived by a regulatory authority to have, an impact on a different medicine we are developing. This could cause the FDA and other regulators to ask questions or take actions that could harm or delay our ability to develop and commercialize our medicines or increase our costs. For example, the FDA or other regulatory agencies could request, among other things, any of the following regarding one of our medicines: additional information or commitments before we can start or continue a clinical study, protocol amendments, increased safety monitoring, additional product labeling information, and post-approval commitments. This happened in connection with the conditional marketing approval for WAYLIVRA in the EU, as the EC is requiring us to conduct a post-authorization safety study to evaluate the safety of WAYLIVRA on thrombocytopenia and bleeding in FCS patients taking WAYLIVRA. We have an ongoing open label extension, or OLE, study of WAYLIVRA in patients with FCS and an OLE study of TEGSEDI in patients with hATTR, and an EAP for WAYLIVRA. Adverse events or results from these studies or the EAPs could negatively impact our pending or future marketing approval applications for WAYLIVRA and TEGSEDI in patients with FCS or hATTR amyloidosis or the commercial opportunity for WAYLIVRA or TEGSEDI.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Any failure or delay in our clinical studies, including the studies of tofersen, pelacarsen, </span>eplontersen<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, olezarsen and ION363, could reduce the commercial potential or viability of our medicines.</span></div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">We depend on third parties to conduct our clinical studies for our medicines and any failure of those parties to fulfill their obligations could adversely affect our development and commercialization plans.*</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We depend on independent clinical investigators, contract research organizations and other third-party service providers to conduct our clinical studies for our medicines and expect to continue to do so in the future. For example, we use clinical research organizations, such as Pharmaceutical Research Associates, Inc., Icon Clinical Research Limited, Syneos Health, Inc., PPD and Medpace for the clinical studies for our medicines, including tofersen, pelacarsen, </span>eplontersen<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, olezarsen and ION363. We rely heavily on these parties for successful execution of our clinical studies, but do not control many aspects of their activities. For example, the investigators are not our employees. However, we are responsible for ensuring that these third parties conduct each of our clinical studies in accordance with the general investigational plan and approved protocols for the study. Third parties may not complete activities on schedule or may not conduct our clinical studies in accordance with regulatory requirements or our stated protocols. The failure of these third parties to carry out their obligations, including as a result of delays or disruption caused by the current COVID-19 Pandemic that may affect the third party&#8217;s ability to conduct the clinical studies for our medicines, or a termination of our relationship with these third parties, could delay or prevent the development, marketing authorization and commercialization of our medicines or additional marketing authorizations for TEGSEDI and WAYLIVRA.</span></div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Since corporate partnering is a significant part of our strategy to fund the advancement and commercialization of our development programs, if any of our collaborative partners fail to fund our collaborative programs, or if we cannot obtain additional partners, we may have to delay or stop progress on our drug development programs.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">To date, corporate partnering has played a significant role in our strategy to fund our development programs and to add key development resources. We plan to continue to rely on additional collaborative arrangements to develop and commercialize many of our unpartnered medicines. However, we may not be able to negotiate favorable collaborative arrangements for these drug programs. If we cannot continue to secure additional collaborative partners, our revenues could decrease and the development of our medicines could suffer.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our corporate partners are developing and/or funding many of the medicines in our development pipeline. For example, we are relying on:</div>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Roche for development and funding of tominersen;</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zbe3535eb0890485f909c82bc18c2e940">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Novartis for development and funding of pelacarsen; and</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zabd920ba956f4ce484ad170dfaa93deb">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Biogen for development and funding of tofersen.</div></td>
  </tr>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If any of these pharmaceutical companies stops developing and/or funding these medicines, our business could suffer and we may not have, or be willing to dedicate, the resources available to develop these medicines on our own. Our collaborators can terminate their relationships with us under certain circumstances, many of which are outside of our control. For example, as part of a reprioritization of its pipeline and strategic review of its rare disease business, GSK declined its option to license TEGSEDI and IONIS-FB-L<sub>Rx</sub>.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Even with funding from corporate partners, if our partners do not effectively perform their obligations under our agreements with them, it would delay or stop the progress of our drug development and commercial programs.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In addition to receiving funding, we enter into collaborative arrangements with third parties to:</div>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">conduct clinical studies;</div></td>
  </tr>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">seek and obtain marketing authorizations; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">manufacture, market and sell our medicines.</div></td>
  </tr>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Once we have secured a collaborative arrangement to further develop and commercialize one of our drug development programs, such as our collaborations with AstraZeneca, Bayer, Biogen, GSK, Janssen, Novartis, Pfizer and Roche, these collaborations may not continue or result in commercialized medicines, or may not progress as quickly as we first anticipated.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, a collaborator such as AstraZeneca, Bayer, Biogen, GSK, Janssen, Novartis, Pfizer or Roche, could determine that it is in its financial interest to:</div>
<div><br /></div>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">pursue alternative technologies or develop alternative products that may be competitive with the medicine that is part of the collaboration with us;</div></td>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">pursue higher-priority programs or change the focus of its own development programs; or</div></td>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z7e2612236211424e8208c954128c1961">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">choose to devote fewer resources to our medicines than it does for its own medicines.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If any of these occur, it could affect our partner&#8217;s commitment to the collaboration with us and could delay or otherwise negatively affect the commercialization of our medicines, including SPINRAZA, tominersen, pelacarsen and tofersen.</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If we do not progress in our programs as anticipated, the price of our securities could decrease.*</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">For planning purposes, we estimate and may disclose the timing of a variety of clinical, regulatory and other milestones, such as when we anticipate a certain medicine will enter clinical trials, when we anticipate completing a clinical study, or when we anticipate filing an application for, or obtaining, marketing authorization, or when we or our partners plan to commercially launch a medicine. We base our estimates on present facts and a variety of assumptions, many of which are outside of our control, including the current COVID-19 Pandemic. If we do not achieve milestones in accordance with our or our investors&#8217; or securities analysts&#8217; expectations, including milestones related to SPINRAZA, TEGSEDI, WAYLIVRA, tominersen, tofersen, pelacarsen, </span>eplontersen<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, olezarsen and ION363, the price of our securities could decrease.</span></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Risks Associated with our Businesses as a Whole</div>
<div><br /></div>
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Risks related to our financial condition</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">We have incurred losses, and our business will suffer if we fail to consistently achieve profitability in the future.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Because drug discovery and development requires substantial lead-time and money prior to commercialization, our expenses have generally exceeded our revenue since we were founded in January 1989. As of September 30, 2021, we had an accumulated deficit of approximately $1.4 billion and stockholders&#8217; equity of approximately $0.5 billion. Most of our historical losses resulted from costs incurred in connection with our research and development programs and from selling, general and administrative costs associated with our operations. Most of our income has come from collaborative arrangements, including commercial revenue from royalties and R&amp;D revenue, with additional income from research grants and the sale or licensing of our patents, as well as interest income. If we do not continue to earn substantial revenue, we may incur additional operating losses in the future. We may not successfully develop any additional medicines or achieve or sustain future profitability.</div>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If we fail to obtain timely funding, we may need to curtail or abandon some of our programs.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Many of our medicines are undergoing clinical studies or are in the early stages of research and development. Most of our drug programs will require significant additional research, development, manufacturing, preclinical and clinical testing, marketing authorizations, preclinical activities and commitment of significant additional resources prior to their successful commercialization. These activities will require significant cash. As of </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, we had cash, cash equivalents and short-term investments equal to $</span>2.0<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> billion. If we or our partners do not meet our goals to successfully commercialize our medicines, including SPINRAZA, TEGSEDI and WAYLIVRA, or to license certain medicines and proprietary technologies, we will need additional funding in the future. Our future capital requirements will depend on many factors, such as the following:</span></div>
<div><br /></div>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">successful commercialization of SPINRAZA, TEGSEDI and WAYLIVRA;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">additional marketing approvals for WAYLIVRA and TEGSEDI;</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z3b7f076c8ead43efa128f52ed740d1ac">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the profile and launch timing of our medicines, including TEGSEDI and WAYLIVRA;</div></td>
  </tr>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">changes in existing collaborative relationships and our ability to establish and maintain additional collaborative arrangements;</div></td>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">continued scientific progress in our research, drug discovery and development programs;</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z7b23fcb6104a4fe5abd10266ea056175">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the size of our programs and progress with preclinical and clinical studies;</div></td>
  </tr>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the time and costs involved in obtaining marketing authorizations;</div></td>
  </tr>
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">competing technological and market developments, including the introduction by others of new therapies that address our markets; and</div></td>
  </tr>
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<table style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z610f54617ef54d22a413d00776bf8f61">
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    <td style="width: 36pt;"></td>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">our manufacturing requirements and capacity to fulfill such requirements.</div></td>
  </tr>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If we need additional funds, we may need to raise them through public or private financing. Additional financing may not be available at all or on acceptable terms. If we raise additional funds by issuing equity securities, the shares of existing stockholders will be diluted and the price, as well as the price of our other securities, may decline. If adequate funds are not available or not available on acceptable terms, we may have to cut back on one or more of our research, drug discovery or development programs. Alternatively, we may obtain funds through arrangements with collaborative partners or others, which could require us to give up rights to certain of our technologies or medicines.</div>
<div><br /></div>
<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Risks related to our intellectual property</div>
<div><br /></div>
<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If we cannot protect our patent rights or our other proprietary rights, others may compete more effectively against us.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our success depends to a significant degree upon whether we can continue to develop, secure and maintain intellectual property rights to proprietary products and services. However, we may not receive issued patents on any of our pending patent applications in the U.S. or in other countries and we may not be able to obtain, maintain or enforce our patents and other intellectual property rights which could impact our ability to compete effectively. In addition, the scope of any of our issued patents may not be sufficiently broad to provide us with a competitive advantage. Furthermore, other parties may successfully challenge, invalidate or circumvent our issued patents or patents licensed to us so that our patent rights do not create an effective competitive barrier or revenue source.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We cannot be certain that the U.S. Patent and Trademark Office, or U.S. PTO, and courts in the U.S. or the patent offices and courts in foreign countries will consider the claims in our patents and applications covering SPINRAZA, TEGSEDI, WAYLIVRA, or any of our medicines in development as patentable. Method-of-use patents protect the use of a product for the specified method. This type of patent does not prevent a competitor from making and marketing a product that is identical to our product for an indication that is outside the scope of the patented method. Moreover, even if competitors do not actively promote their product for our targeted indications, physicians may prescribe these products off-label. Although off-label prescriptions may infringe or contribute to the infringement of method-of-use patents, the practice is common and such infringement is difficult to prevent, including through legal action.</div>
<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If we or any licensor partner loses or cannot obtain patent protection for SPINRAZA, TEGSEDI, WAYLIVRA, or any of our other medicines in development, it could have a material adverse impact on our business.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Intellectual property litigation could be expensive and prevent us from pursuing our programs.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">From time to time we have to defend our intellectual property rights. If we are involved in an intellectual property dispute, we may need to litigate to defend our rights or assert them against others. Disputes can involve arbitration, litigation or proceedings declared by the U.S. PTO or the International Trade Commission or foreign patent authorities. Even if resolved in our favor, litigation or other legal proceedings relating to intellectual property claims may cause us to incur significant expenses and could distract our technical and management personnel from their normal responsibilities. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments and if securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the price of our common stock.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If a third party claims that our medicines or technology infringe its patents or other intellectual property rights, we may have to discontinue an important product or product line, alter our products and processes, pay license fees or cease certain activities. We may not be able to obtain a license to needed intellectual property on favorable terms, if at all. There are many patents issued or applied for in the biotechnology industry, and we may not be aware of patents or patent applications held by others that relate to our business. This is especially true since patent applications in the U.S. are filed confidentially for the first 18 months. Moreover, the validity and breadth of biotechnology patents involve complex legal and factual questions for which important legal issues remain.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Risks related to our business strategy and personnel</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If we fail to successfully integrate Akcea&#8217;s business and operations, it may adversely affect our future results.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We believe our Akcea Merger will result in certain benefits, including a single vision and set of strategic priorities, led by one team, accelerating our next phase of growth and positioning us to more effectively deliver our medicines to patients. Following this transaction, Ionis now retains more value from Akcea&#8217;s pipeline and commercial medicines, further strengthening our financial position and supporting continued investments in our future. The success of the transaction will depend on our ability to realize these anticipated benefits. We may fail to realize the anticipated benefits of the Akcea Merger for a variety of reasons, including the following:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">failure to successfully manage relationships with partners, customers, distributors and suppliers;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">disruptions to Akcea&#8217;s commercial operations;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">potential incompatibility of technologies and systems;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">failure to leverage the capabilities of the combined company quickly and effectively;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">potential difficulties integrating and harmonizing business systems and processes;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">tax benefits of the combined structure may not be available or in the expected amounts; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">the loss of key employees.</div></td>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If our management transition is not successful our business could suffer.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In January 2020, Dr. Crooke, our founder and Chief Executive Officer, transitioned from Chief Executive Officer to Executive Chairman of our Board of Directors, and Dr. Monia, who was our Chief Operating Officer and a member of our team since our founding over 30 years ago, began serving as our Chief Executive Officer. Following the 2021 Annual Meeting of Stockholders, Dr. Crooke stepped down from the Board and now serves as a Strategic Advisor to the Company, providing strategic advice and continuing to participate in the Company&#8217;s scientific activities. If this transition is not successful, our business could suffer.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">The loss of key personnel, or the inability to attract and retain highly skilled personnel, could make it more difficult to run our business and reduce our likelihood of success.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We are dependent on the principal members of our management and scientific staff. We do not have employment agreements with any of our executive officers that would prevent them from leaving us. The loss of our management and key scientific employees might slow the achievement of important research and development goals. It is also critical to our success that we recruit and retain qualified scientific personnel to perform research and development work. We may not be able to attract and retain skilled and experienced scientific personnel on acceptable terms because of intense competition for experienced scientists among many pharmaceutical and health care companies, universities and non-profit research institutions. In addition, failure to succeed in clinical studies may make it more challenging to recruit and retain qualified scientific personnel. Similarly, we are dependent on the principal members of our staff responsible for marketing, sales and distribution activities. If we are not able to recruit and retain qualified </span>marketing and sales personnel, the sales of TEGSEDI and WAYLIVRA may be adversely affected.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Risks related to taxes</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Our ability to use our net operating loss carryovers and certain other tax attributes may be limited.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under the Internal Revenue Code of 1986, as amended, or the Code, a corporation is generally allowed a deduction for net operating losses, or NOLs, carried over from a prior taxable year. Under that provision, we can carryforward our NOLs to offset our future taxable income, if any, until such NOLs are used or expire. The same is true of other unused tax attributes, such as tax credits.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under the Tax Cut and Jobs Act of 2017, or the Tax Act, as modified by the Coronavirus Aid, Relief, and Economic Security Act, or the CARES Act, U.S. federal net operating losses incurred in 2018 and in future years may be carried forward indefinitely, but the deductibility of such U.S. federal net operating losses is limited to 80 percent of taxable income beginning in 2021. It is uncertain if and to what extent various states will conform to the federal Tax Act or the CARES Act. The CARES Act also reinstated the net operating loss carryback provisions whereby net operating losses incurred in calendar tax years 2018, 2019 and 2020 may be carried back to offset taxable income of the five tax years preceding the year of the loss.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In June 2020, California enacted Assembly Bill 85 (AB 85), which suspends NOLs and limits credit utilization to $5 million per year for the 2020, 2021 and 2022 tax years. AB 85 did not have a material impact on our 2020 tax provision, and we do not expect that it will materially impact our 2021 tax provision, but it is possible that it may in future years.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In addition, under Sections 382 and 383 of the Code, and corresponding provisions of state law, if a corporation undergoes an &#8220;ownership change,&#8221; which is generally defined as a greater than 50 percent change, by value, in its equity ownership over a three-year period, the corporation&#8217;s ability to use its pre-change net operating loss carryforwards and other pre-change tax attributes to offset its post-change income or taxes may be limited. We may experience ownership changes in the future as a result of subsequent shifts in our stock ownership, some of which may be outside of our control. If an ownership change occurs and our ability to use our net operating loss carryforwards or other tax attributes is materially limited, it would harm our future operating results by effectively increasing our future tax obligations. As a result of the Akcea Merger, we are subject to the Separate Return Limitation Year, or SRLY, rules. Under SRLY, our utilization of Akcea&#8217;s pre-merger net operating loss and tax credit carryforwards is limited to the amount of income that Akcea contributes to our consolidated taxable income. The Akcea pre-merger tax attributes cannot be used to offset any of the income that Ionis contributes to our consolidated taxable income. In addition, at the state level, there may be periods during which the use of net operating losses is suspended or otherwise limited, which could accelerate or permanently increase state taxes owed.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Our future taxable income could be impacted by changes in tax laws, regulations and treaties.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">A change in tax laws, treaties or regulations, or their interpretation, of any country in which we operate could materially affect us.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">We could be subject to additional tax liabilities.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are subject to U.S. federal, state, local and sales taxes in the U.S. and foreign income taxes, withholding taxes and transaction taxes in foreign jurisdictions. Significant judgment is required in evaluating our tax positions and our worldwide provision for taxes. During the ordinary course of business, there are many activities and transactions for which the ultimate tax determination is uncertain. In addition, our tax obligations and effective tax rates could be adversely affected by changes in the relevant tax, accounting and other laws, regulations, principles and interpretations, including those relating to income tax nexus, by recognizing tax losses or lower than anticipated earnings in jurisdictions where we have lower statutory rates and higher than anticipated earnings in jurisdictions where we have higher statutory rates, by changes in foreign currency exchange rates, or by changes in the valuation of our deferred tax assets and liabilities. We may be audited in various jurisdictions, and such jurisdictions may assess additional taxes, sales taxes and value-added taxes against us. Although we believe our tax estimates are reasonable, the final determination of any tax audits or litigation could be materially different from our historical tax provisions and accruals, which could have a material adverse effect on our operating results or cash flows in the period for which a determination is made.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">General Risk Factors</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">If the price of our securities continues to be highly volatile, this could make it harder for you to liquidate your investment and could increase your risk of suffering a loss.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The market price of our common stock, like that of the securities of many other biopharmaceutical companies, has been and is likely to continue to be highly volatile. These fluctuations in our common stock price may significantly affect the trading price of our securities. During the 12 months preceding </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, the market price of our common stock ranged from $</span>64.37<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> to $</span>33.52<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> per share. Many factors can affect the market price of our securities, including, for example, fluctuations in our operating results, announcements of collaborations, clinical study results, technological innovations or new products being developed by us or our competitors, the commercial success of our approved medicines, governmental regulation, marketing authorizations, changes in payers&#8217; reimbursement policies, developments in patent or other proprietary rights and public concern regarding the safety of our medicines.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The current COVID-19 Pandemic has caused a </span>significant disruption of global financial markets and has resulted in increased volatility in the trading price of our common stock. Additionally, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">broad market and industry factors may also materially harm the market price of our common stock irrespective of our operating performance. The stock market in general, and NASDAQ and the market for biotechnology companies in particular, have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of the particular companies affected. The trading prices and valuations of these stocks, and of ours, may not be predictable. A loss of investor confidence in the market for biotechnology or pharmaceutical stocks or the stocks of other companies which investors perceive to be similar to us, the opportunities in the biotechnology and pharmaceutical market or the stock market in general, could depress our stock price regardless of our business, prospects, financial conditions or results of operations.</span></div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Provisions in our certificate of incorporation, convertible notes documents, call spread hedge transaction documents and Delaware law may prevent stockholders from receiving a premium for their shares.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our certificate of incorporation provides for classified terms for the members of our board of directors. Our certificate also includes a provision that requires at least 66 2/3 percent of our voting stockholders to approve a merger or certain other business transactions with, or proposed by, any holder of 15 percent or more of our voting stock, except in cases where certain directors approve the transaction or certain minimum price criteria and other procedural requirements are met.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our certificate of incorporation also requires that any action required or permitted to be taken by our stockholders must be taken at a duly called annual or special meeting of stockholders and may not be taken by written consent. In addition, only our board of directors, chairman of the board or chief executive officer can call special meetings of our stockholders. We have in the past, and may in the future, implement a stockholders&#8217; rights plan, also called a poison pill, which could make it uneconomical for a third party to acquire our company on a hostile basis. In addition, our board of directors has the authority to fix the rights and preferences of, and issue shares of preferred stock, which may have the effect of delaying or preventing a change in control of our company without action by our stockholders.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The provisions of our convertible senior notes could make it more difficult or more expensive for a third party to acquire us. Upon the occurrence of certain transactions constituting a fundamental change, holders of the notes will have the right, at their option, to require us to repurchase all of their notes or a portion of their notes, which may discourage certain types of transactions in which our stockholders might otherwise receive a premium for their shares over the then current market prices.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In April 2021, we completed a $632.5 million offering of 0% Notes and used a portion of the net proceeds from the issuance of the 0% Notes to repurchase $247.9 million of our 1% Notes for $257.0 million. </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In December 2019, we entered into privately negotiated exchange and/or subscription agreements with certain new investors and certain holders of our existing 1% Notes to exchange $375.6 million of our 1% Notes for $439.3 million of our 0.125% Notes, and to issue $109.5 million of our 0.125% Notes. Additionally, in connection with the pricing of our 0% Notes and 0.125% Notes, we entered into call spread transactions in which we purchased note hedges and sold warrants. </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Terminating or unwinding the call spread transactions could require us to make substantial payments to the counterparties under those agreements or may increase our stock price. The costs or any increase in stock price that may arise from terminating or unwinding such agreements could make an acquisition of our company significantly more expensive to the purchaser.</span></div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">These provisions, as well as Delaware law, including Section 203 of the Delaware General Corporation Law, and other of our agreements, may discourage certain types of transactions in which our stockholders might otherwise receive a premium for their shares over then current market prices, and may limit the ability of our stockholders to approve transactions that they think may be in their best interests.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Future sales of our common stock in the public market could adversely affect the trading price of our securities.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Future sales of substantial amounts of our common stock in the public market, or the perception that such sales could occur, could adversely affect trading prices of our securities. For example, we may issue approximately 18.4 million shares of our common stock upon conversion of our 0% Notes, 0.125% Notes, and 1% Notes, up to 10.9 million shares in connection with the warrant transactions we entered into in connection with the issuance of our 0% Notes, and up to 6.6 million shares in connection with the warrant transactions we entered into in connection with the issuance of our 0.125% Notes, in each case subject to customary anti-dilution adjustments. The addition of any of these shares into the public market may have an adverse effect on the price of our securities.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In addition, pursuant to the call spread transactions we entered into in connection with the pricing of our 0% Notes and 0.125% Notes, the counterparties are likely to modify their hedge positions from time to time at or prior to the conversion or maturity of the notes by purchasing and selling shares of our common stock, other of our securities, or other instruments, including over-the-counter derivative instruments, that they may wish to use in connection with such hedging, which may have a negative effect on the conversion value of those notes and an adverse impact on the trading price of our common stock. The call spread transactions are expected generally to reduce potential dilution to holders of our common stock upon any conversion of our 0% Notes or 0.125% Notes or offset any cash payments we are required to make in excess of the principal amount of the converted 0% Notes or 0.125% Notes, as the case may be. However, the warrant transactions could separately have a dilutive effect to the extent that the market value per share of our common stock exceeds the applicable strike price of the warrants.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">We are exposed to potential product liability claims, and insurance against these claims may not be available to us at a reasonable rate in the future or at all.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our business exposes us to potential product liability risks that are inherent in the testing, manufacturing, marketing and sale of therapeutic products, including potential product liability claims related to SPINRAZA, TEGSEDI and WAYLIVRA, and our medicines in development. We have clinical study insurance coverage and commercial product liability insurance coverage. However, this insurance coverage may not be adequate to cover claims against us, or be available to us at an acceptable cost, if at all. Regardless of their merit or eventual outcome, product liability claims may result in decreased demand for our medicines, injury to our reputation, withdrawal of clinical study volunteers and loss of revenues. Thus, whether or not we are insured, a product liability claim or product recall may result in losses that could be material.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">We are dependent on information technology systems, infrastructure and data, which exposes us to data security risks.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are dependent upon our own and third-party information technology systems, infrastructure and data, including mobile technologies, to operate our business. The multitude and complexity of our computer systems may make them vulnerable to service interruption or destruction, disruption of data integrity, malicious intrusion, or random attacks. Likewise, data privacy or security incidents or breaches by employees or others may pose a risk that sensitive data, including our intellectual property, trade secrets or personal information of our employees, patients, customers or other business partners may be exposed to unauthorized persons or to the public. Cyber-attacks are increasing in their frequency, sophistication and intensity, with third-party phishing and social engineering attacks in particular increasing in connection with the COVID-19 Pandemic. Cyber-attacks could include the deployment of harmful malware, denial-of-service, social engineering and other means to affect service reliability and threaten data confidentiality, integrity and availability. Our business partners face similar risks and any security breach of their systems could adversely affect our security posture. A security breach or privacy violation that leads to disclosure or modification of or prevents access to patient information, including personally identifiable information or protected health information, could harm our reputation, compel us to comply with federal and state breach notification laws and foreign law equivalents, subject us to financial penalties and mandatory and costly corrective action, require us to verify the correctness of database contents and otherwise subject us to litigation or other liability under laws and regulations that protect personal data, any of which could disrupt our business and result in increased costs or loss of revenue. Moreover, the prevalent use of mobile devices that access confidential information increases the risk of data security breaches, which could lead to the loss of confidential information, trade secrets or other intellectual property. While we have invested, and continue to invest, in the protection of our data and information technology infrastructure, our efforts may not prevent service interruptions, or identify breaches in our systems, that could adversely affect our business and operations and result in the loss of critical or sensitive information, which could result in financial, legal, business or reputational harm to us. In addition, our liability insurance may not be sufficient in type or amount to cover us against claims related to security breaches, cyber-attacks and other related breaches.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Because we use biological materials, hazardous materials, chemicals and radioactive compounds, if we do not comply with laws regulating the protection of the environment and health and human safety, our business could be adversely affected.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our research, development and manufacturing activities involve the use of potentially harmful biological materials as well as materials, chemicals and various radioactive compounds that could be hazardous to human health and safety or the environment. We store most of these materials and various wastes resulting from their use at our facilities in Carlsbad, California pending ultimate use and disposal. We cannot completely eliminate the risk of contamination, which could cause:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">interruption of our research, development and manufacturing efforts;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">injury to our employees and others;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">environmental damage resulting in costly clean up; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">liabilities under federal, state and local laws and regulations governing health and human safety, as well as the use, storage, handling and disposal of these materials and resultant waste products.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In such an event, we may be held liable for any resulting damages, and any liability could exceed our resources. Although we carry insurance in amounts and types that we consider commercially reasonable, we do not have insurance coverage for losses relating to an interruption of our research, development or manufacturing efforts caused by contamination, and the coverage or coverage limits of our insurance policies may not be adequate. If our losses exceed our insurance coverage, our financial condition would be adversely affected.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Our business may be adversely affected by climate change, extreme weather events, earthquakes, pandemics, civil or political unrest, terrorism or other catastrophic events.*</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In recent years, extreme weather events and changing weather patterns have become more common. As a result, we are potentially exposed to varying natural disaster or extreme weather risks such as hurricanes, tornadoes, fires, droughts, floods, or other events that may result from the impact of climate change on the environment. The potential impacts of climate change may also include increased operating costs associated with additional regulatory requirements and investments in reducing energy, water use and greenhouse gas emissions. In addition, we manufacture most of our research and clinical supplies in a manufacturing facility located in Carlsbad, California. We manufacture the finished drug product for TEGSEDI and WAYLIVRA at third-party contract manufacturers. Biogen manufactures the finished drug product for SPINRAZA. The facilities and the equipment we, our partners and our contract manufacturers use to research, develop and manufacture our medicines would be costly to replace and could require substantial lead time to repair or replace. Our facilities or those of our partners or contract manufacturers may be harmed by natural disasters or other events outside our control, such as earthquakes, pandemics, war, civil or political unrest, deliberate acts of sabotage, terrorism or industrial accidents such as fire and explosion, whether due to human or equipment error, and if such facilities are affected by a disaster or other event, our development and commercialization efforts would be delayed. Although we possess property damage and business interruption insurance coverage, this insurance may not be sufficient to cover all of our potential losses and may not continue to be available to us on acceptable terms, or at all. In addition, our development and commercialization activities could be harmed or delayed by a shutdown of the U.S. government, including the FDA.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Our business is subject to changing regulations for corporate governance and public disclosure that has increased both our costs and the risk of noncompliance.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Each year we are required to evaluate our internal controls systems in order to allow management to report on and our Independent Registered Public Accounting Firm to attest to, our internal controls as required by Section 404 of the Sarbanes-Oxley Act. As a result, we continue to incur additional expenses and divert our management&#8217;s time to comply with these regulations. In addition, if we cannot continue to comply with the requirements of Section 404 in a timely manner, we might be subject to sanctions or investigation by regulatory authorities, such as the SEC, the Public Company Accounting Oversight Board, or PCAOB, or The Nasdaq Global Select Market. Any such action could adversely affect our financial results and the market price of our common stock.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The SEC and other regulators have continued to adopt new rules and regulations and make additional changes to existing regulations that require our compliance. On July 21, 2010, the Dodd-Frank Wall Street Reform and Protection Act, or the Dodd-Frank Act, was enacted. There are significant corporate governance and executive compensation-related provisions in the Dodd-Frank Act that require the SEC to adopt, or where the SEC has adopted, additional rules and regulations in these areas such as &#8220;say on pay&#8221; and proxy access. Stockholder activism, the current political environment and the current high level of government intervention and regulatory reform may lead to substantial new regulations and disclosure obligations, which may lead to additional compliance costs and impact the manner in which we operate our business.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>59</span></div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Negative conditions in the global credit markets and financial services and other industries may adversely affect our business.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The global credit markets, the financial services industry, the U.S. capital markets, and the U.S. economy as a whole are currently experiencing substantial turmoil and uncertainty characterized by unprecedented intervention by the U.S. federal government in response to the COVID-19 Pandemic. In the past, the failure, bankruptcy, or sale of various financial and other institutions created similar turmoil and uncertainty in such markets and industries. It is possible that a crisis in the global credit markets, the U.S. capital markets, the financial services industry or the U.S. economy may adversely affect our business, vendors and prospects, as well as our liquidity and financial condition. More specifically, our insurance carriers and insurance policies covering all aspects of our business may become financially unstable or may not be sufficient to cover any or all of our losses and may not continue to be available to us on acceptable terms, or at all. </span>A variety of risks associated with operating our business and marketing our medicines internationally could adversely affect our business.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In addition to our U.S. operations, we are commercializing TEGSEDI in the EU, Canada, Latin America and certain Caribbean countries, and WAYLIVRA in the EU, Latin America and certain Caribbean countries. We face risks associated with our international operations, including possible unfavorable regulatory, pricing and reimbursement, political, tax and labor conditions, which could harm our business. Because we have international operations, we are subject to numerous risks associated with international business activities, including:</div>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">compliance with differing or unexpected regulatory requirements for our medicines and foreign employees;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">complexities associated with managing multiple payer reimbursement regimes, government payers or patient self-pay systems;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">difficulties in staffing and managing foreign operations;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">in certain circumstances, increased dependence on the commercialization efforts and regulatory compliance of third-party distributors or strategic partners;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">foreign government taxes, regulations and permit requirements;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">U.S. and foreign government tariffs, trade restrictions, price and exchange controls and other regulatory requirements;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">anti-corruption laws, including the Foreign Corrupt Practices Act, or the FCPA, and its equivalent in foreign jurisdictions;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">economic weakness, including inflation, natural disasters, war, events of terrorism, political instability or public health issues or pandemics, such as the current COVID-19 Pandemic, in particular foreign countries or globally;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">fluctuations in currency exchange rates, which could result in increased operating expenses and reduced revenue, and other obligations related to doing business in another country;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">compliance with tax, employment, privacy, immigration and labor laws, regulations and restrictions for employees living or traveling abroad;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">workforce uncertainty in countries where labor unrest is more common than in the U.S.; and</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">changes in diplomatic and trade relationships.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The United Kingdom&#8217;s exit from the E.U. could increase these risks.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our business activities outside of the U.S. are subject to the FCPA and similar anti-bribery or anti-corruption laws, regulations or rules of other countries in which we operate, including the United Kingdom&#8217;s Bribery Act 2010. In many other countries, the healthcare providers who prescribe pharmaceuticals are employed by their government, and the purchasers of pharmaceuticals are government entities; therefore, any dealings with these prescribers and purchasers may be subject to regulation under the FCPA. There is no certainty that all employees and third-party business partners (including our distributors, wholesalers, agents, contractors and other partners) will comply with anti-bribery laws. In particular, we do not control the actions of manufacturers and other third-party agents, although we may be liable for their actions. Violation of these laws may result in civil or criminal sanctions, which could include monetary fines, criminal penalties, and disgorgement of past profits, which could have an adverse impact on our business and financial condition.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>60</span></div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">The impact on us of the vote by the United Kingdom to leave the European Union cannot be predicted.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The withdrawal of the UK from the EU, commonly referred to as &#8220;Brexit,&#8221; may adversely impact our ability to obtain regulatory approvals of our medicines in the EU, result in restrictions or imposition of taxes and duties for importing our medicines into the EU, and may require us to incur additional expenses in order to develop, manufacture and commercialize our medicines in the EU.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Following the result of a referendum in 2016, the UK left the EU on January 31, 2020. Pursuant to the formal withdrawal arrangements agreed between the UK and the EU, the UK was subject to a transition period that ended December 31, 2020, or the Transition Period, during which EU rules continued to apply. A trade and cooperation agreement, or the Trade and Cooperation Agreement, that outlines the future trading relationship between the UK and the EU was agreed in December 2020.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Since a significant proportion of the regulatory framework in the UK applicable to our business and our medicines is derived from EU directives and regulations, Brexit has had, and may continue to have, a material impact upon the regulatory regime with respect to the development, manufacture, importation, approval and commercialization of our medicines in the UK or the EU. For example, Great Britain is no longer covered by the centralized procedures for obtaining EU-wide marketing authorization from the EMA, and a separate marketing authorization will be required to market our medicines in Great Britain. It is currently unclear whether the Medicines &amp; Healthcare products Regulatory Agency in the UK is sufficiently prepared to handle the increased volume of marketing authorization applications that it is likely to receive. Any delay in obtaining, or an inability to obtain, any marketing approvals, as a result of Brexit or otherwise, would delay or prevent us from commercializing our medicines in the UK or the EU.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">While the Trade and Cooperation Agreement provides for the tariff-free trade of medicinal products between the UK and the EU, there may be additional non-tariff costs to such trade which did not exist prior to the end of the Transition Period. Further, should the UK diverge from the EU from a regulatory perspective in relation to medicinal products, tariffs could be put into place in the future. We could therefore, both now and in the future, face significant additional expenses (when compared to the position prior to the end of the Transition Period) to operate our business.</div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>61</span></div>
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    <td style="width: 72pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ITEM 2.</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS</div></td>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Not applicable.</div>
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    <td style="width: 72pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ITEM 3.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">DEFAULT UPON SENIOR SECURITIES</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Not applicable.</div>
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    <td style="width: 72pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ITEM 4.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">MINE SAFETY DISCLOSURES</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Not applicable.</div>
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  </tr>
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<div><br /></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Not applicable.</div>
<div><br /></div>
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<div><br /></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>62</span></div>
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    <td style="width: 8.46%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 1.5%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
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    <td style="width: 8.46%; vertical-align: top; background-color: #CCEEFF;"><div style="text-align: left; margin-left: 4.5pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">31.1</div></td>
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    <td style="width: 8.46%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
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  <tr>
    <td style="width: 8.46%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 1.5%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
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  <tr>
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    <td style="width: 8.46%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
    <td style="width: 1.5%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span>63</span></div>
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<div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">SIGNATURES</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.</div>
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      <div style="font-weight: bold;">CONFIDENTIAL</div>
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    <div style="font-weight: bold;">CERTAIN IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THE EXHIBIT BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) WOULD BE COMPETITIVELY HARMFUL IF PUBLICLY DISCLOSED.&#160; SUCH EXCLUDED INFORMATION HAS BEEN MARKED WITH
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            <div>ARTICLE 1 RESEARCH AND DEVELOPMENT</div>
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            <div style="text-align: right;">2</div>
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            <div style="text-align: right;">2</div>
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            <div>Collaboration Programs</div>
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            <div style="text-align: right;">2</div>
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            <div>1.4.</div>
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            <div>Collaboration Targets</div>
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            <div style="text-align: right;">9</div>
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        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>1.7.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Drug Discovery and Drug Development Terms</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">10</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>1.8.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Additional Activities Requested by Biogen</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">11</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>1.9.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Biogen&#8217;s Participation in Regulatory Meetings</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">13</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>1.10.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Impact of [***] Development Path</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">14</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>1.11.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Research and Development Management</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">14</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>ARTICLE 2 EXCLUSIVITY COVENANTS</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">16</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>2.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Exclusivity; Right of First Negotiation</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">16</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>2.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Effect of Exclusivity on Indications</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">20</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>2.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Consequences of Ionis-Discovered High Interest Target Development Candidate</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">20</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>ARTICLE 3 EXCLUSIVE OPTION</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">21</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>3.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Option</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">21</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>3.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Restrictions on Ionis&#8217; Right to Grant Diagnostic Rights; Right to Negotiate Diagnostic Rights</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">22</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top;">
            <div>ARTICLE 4 LICENSE GRANTS</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">23</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>4.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>License Grants to Biogen</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">23</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>4.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Assignment of Ionis Product-Specific Patents; Grant Back to Ionis</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">25</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>4.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Enabling Licenses</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">26</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>4.4.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Licenses to Ionis for Biogen Results.</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">29<br>
            </div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>4.5.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Right to Obtain Direct License from Biogen to Ionis Partner; Sublicensees of Ionis</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">30</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>4.6.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Ownership of and Assistance with Regulatory Filings</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">30</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>4.7.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Subcontracting</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">31</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>4.8.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Technology Transfer after the License Effective Date</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">31</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>ARTICLE 5 DEVELOPMENT, MANUFACTURING AND COMMERCIALIZATION</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">34</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>5.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Biogen Diligence</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">34</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">i</font></div>
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        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="z9e5e5b8aa13a4515a1fa85a5eebaa947">

        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>5.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Global Safety Database; Pharmacovigilance Agreement</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">36</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>5.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Research and Manufacturing Records</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">38</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>ARTICLE 6 FINANCIAL PROVISIONS</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">38</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>6.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Option Fee</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">38</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>6.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Milestone Payments for Achievement of Pre-Licensing Milestone Events</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">38</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>6.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>License Fee</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">39</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>6.4.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Milestone Payments for Achievement of Post-Licensing Milestone Events</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">39</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>6.5.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Limitations on Milestone Payments; Exceptions; Notice</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">39</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>6.6.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Royalty Payments to Ionis</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">40</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>6.7.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Reverse Royalty Payments to Biogen for a Discontinued Product</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">43</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>6.8.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Third Party Payment Obligations</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">43</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>6.9.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Payments</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">45</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>6.10.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Audits</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">46</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>6.11.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Taxes</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">46</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>6.12.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Interest</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">47</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top;">
            <div>ARTICLE 7 INTELLECTUAL PROPERTY</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">47</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>7.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Ownership</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">47</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>7.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Prosecution and Maintenance of Patents</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">51</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>7.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Patent Costs</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">56</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>7.4.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Defense of Claims Brought by Third Parties</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">56</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>7.5.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Enforcement of Patents against Competitive Infringement</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255); text-align: right;">58</td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>7.6.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Other Infringement</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">60</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>7.7.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Patent Listing</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">61</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>7.8.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Joint Research Agreement under the Leahy-Smith America Invents Act</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">61</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>7.9.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Obligations to Third Parties</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">62</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>7.10.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Additional Right and Exceptions</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">62</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>7.11.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Patent Term Extension</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">62</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top;">
            <div>ARTICLE 8 REPRESENTATIONS AND WARRANTIES</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">62</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>8.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Representations and Warranties of Both Parties</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">62</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>8.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Representations and Warranties of Ionis</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">63</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>8.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Ionis Covenants</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">64</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>8.4.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>DISCLAIMER</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">65</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>ARTICLE 9 INDEMNIFICATION; INSURANCE</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">66</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>9.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Indemnification by Biogen</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">66</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">ii</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="ze92a5b02aeec489fbc09d0ddd2bfbfa7">

        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>9.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Indemnification by Ionis</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">66</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>9.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Procedure</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">67</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>9.4.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Insurance</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">67</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>9.5.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>LIMITATION OF CONSEQUENTIAL DAMAGES</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">68</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>ARTICLE 10 TERM; TERMINATION</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">68</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>10.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Agreement Term; Expiration</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">68</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>10.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Termination of the Agreement</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">68</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>10.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Alternative Remedies to Termination Available to Biogen Prior to the License Effective Date</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">73</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>10.4.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Consequences of Expiration or Termination of the Agreement</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">74</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top;">
            <div>ARTICLE 11 CONFIDENTIALITY</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">83</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>11.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Confidentiality; Exceptions</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">83</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>11.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Prior Confidentiality Agreement Superseded</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">83</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>11.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Authorized Disclosure</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">83</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>11.4.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Press Release; Publications; Disclosure of Agreement</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">84</div>
          </td>
        </tr>
        <tr>
          <td colspan="3" style="vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>ARTICLE 12 MISCELLANEOUS</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">89</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.1.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Dispute Resolution</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">89</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.2.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Governing Law; Jurisdiction; Venue; Service of Process</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">89</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.3.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Remedies</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">90</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.4.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Assignment and Successors</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">90</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.5.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Change of Control</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">91</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.6.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Protective Provisions</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">93</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.7.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Force Majeure</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">93</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.8.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Notices</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">94</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.9.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Export Clause</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">94</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.10.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Waiver</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">95</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.11.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Severability</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">95</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.12.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Entire Agreement</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">95</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.13.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Independent Contractors</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">95</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.14.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Interpretation</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">95</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.15.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Books and Records</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">96</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.16.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Further Actions</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">96</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.17.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Construction of Agreement</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">96</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.18.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Supremacy</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">96</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top;">&#160;</td>
          <td style="width: 6%; vertical-align: top;">
            <div>12.19.</div>
          </td>
          <td style="width: 85%; vertical-align: top;">
            <div>Counterparts</div>
          </td>
          <td style="width: 7%; vertical-align: top;">
            <div style="text-align: right;">96</div>
          </td>
        </tr>
        <tr>
          <td style="width: 2%; vertical-align: top; background-color: rgb(204, 238, 255);">&#160;</td>
          <td style="width: 6%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>12.20.</div>
          </td>
          <td style="width: 85%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div>Compliance with Laws</div>
          </td>
          <td style="width: 7%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">96</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">iii</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
    </div>
    <div style="text-align: center; font-weight: bold;">AMENDED AND RESTATED NEUROLOGY DRUG DISCOVERY AND DEVELOPMENT COLLABORATION, OPTION AND LICENSE AGREEMENT</div>
    <div>&#160;</div>
    <div style="text-align: justify; text-indent: 36pt;">This AMENDED AND RESTATED NEUROLOGY DRUG DISCOVERY AND DEVELOPMENT COLLABORATION, OPTION AND LICENSE AGREEMENT (the &#8220;<font style="font-weight: bold; font-style: italic;">Agreement</font>&#8221;) is entered
      into as of the 12th day of July, 2021 (the &#8220;<font style="font-weight: bold; font-style: italic;">Amendment Date</font>&#8221;) by and between <font style="font-weight: bold; font-variant: small-caps;">Ionis Pharmaceuticals, Inc. </font>(formerly known as
      Isis Pharmaceuticals, Inc.), a Delaware corporation, having its principal place of business at 2855 Gazelle Court, Carlsbad, CA 92010 (&#8220;<font style="font-weight: bold; font-style: italic;">Ionis</font>&#8221;), and<font style="font-weight: bold; font-variant: small-caps;"> Biogen MA Inc. </font>(formerly known as Biogen Idec MA Inc.), a Massachusetts corporation, having its principal place of business at 225 Binney Street, Cambridge, MA 02142 (&#8220;<font style="font-weight: bold; font-style: italic;">Biogen</font>&#8221;). Biogen and Ionis each may be referred to herein individually as a &#8220;<font style="font-weight: bold; font-style: italic;">Party</font>&#8221; or collectively as the &#8220;<font style="font-weight: bold; font-style: italic;">Parties</font>.&#8221;&#160;






      Capitalized terms used in this Agreement, whether used in the singular or the plural, have the meaning set forth in <font style="font-variant: small-caps;"><u>Appendix</u></font><u> 1</u>.&#160; All attached appendices and schedules are a part of this
      Agreement.</div>
    <div>&#160;</div>
    <div style="text-align: center;">RECITALS</div>
    <div>&#160;</div>
    <div style="text-align: justify; text-indent: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">WHEREAS</font><font style="font-size: 10pt;">, Ionis possesses certain Patent Rights, Know-How, technology and expertise with
        respect to antisense therapeutics, and has novel and valuable capabilities for the research, discovery, identification, synthesis and development of antisense therapeutics;</font></div>
    <div>&#160;</div>
    <div style="text-align: justify; text-indent: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">WHEREAS</font><font style="font-size: 10pt;">, Biogen has expertise in developing and commercializing human therapeutics, and Biogen
        is interested in developing and commercializing antisense therapeutics for up to three gene targets;</font></div>
    <div>&#160;</div>
    <div style="text-align: justify; text-indent: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">WHEREAS</font><font style="font-size: 10pt;">, Biogen desires Ionis to (a) identify a development candidate for each of the three
        gene targets, (b) develop the development candidates through completion of the first clinical trial designed to demonstrate proof of mechanism or proof of therapeutic benefit and (c) provide Biogen an option to obtain an exclusive license under
        this Agreement to develop, manufacture and commercialize Products in the Field;</font></div>
    <div>&#160;</div>
    <div style="text-align: justify; text-indent: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">WHEREAS</font><font style="font-size: 10pt;">, Biogen and Ionis entered into that certain Neurology Drug Discovery and Development
        Collaboration, Option and License Agreement, as amended (the &#8220;<font style="font-weight: bold; font-style: italic;">Original Agreement</font>&#8221;) dated December 10, 2012 (the &#8220;<font style="font-weight: bold; font-style: italic;">Effective Date</font>&#8221;);






        and</font></div>
    <div>&#160;</div>
    <div style="text-align: justify; text-indent: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">WHEREAS</font><font style="font-size: 10pt;">, Biogen and Ionis seek to amend and restate the Original Agreement in its entirety as
        set forth herein.</font></div>
    <div>&#160;</div>
    <div style="text-align: justify; text-indent: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">NOW, THEREFORE</font><font style="font-size: 10pt;">, in consideration of the respective covenants, representations, warranties and
        agreements set forth herein, the Parties hereto agree as follows:</font></div>
    <div>&#160;</div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <!--PROfilePageNumberReset%Num%2%%%-->
    <div style="text-align: center; font-weight: bold;">ARTICLE 1</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126714"></a><a name="z_Toc74129685"></a><a name="z_Toc74160238"></a>RESEARCH AND DEVELOPMENT</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2f6aa2c9920c4d28949920c535d401b7">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126715"></a><a name="z_Toc74129686"></a><a name="z_Toc74160239"></a><font style="font-weight: bold;">1.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Collaboration Overview</u></font><font style="font-size: 10pt;">.&#160; The intent of the collaboration is for Ionis to (a) conduct Collaboration Programs for each of
                the three Collaboration Targets, (b) generate at least one Development Candidate for each Collaboration Program; (c) advance each Development Candidate through the completion of the first PoC Trial under the applicable Collaboration
                Program; and (d) allow Biogen the opportunity to exercise an Option to further Develop and ultimately Commercialize Compounds and Products under such Collaboration Program under an exclusive license from Ionis.&#160; The purpose of this <u>Section






                  1.1</u> is to provide a high-level overview of the roles, responsibilities, rights and obligations of each Party under this Agreement, and therefore this <u>Section 1.1</u> is qualified in its entirety by the more detailed provisions of
                this Agreement set forth below.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z95fcc08c55d4490882a343b0550a1fe6">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126716"></a><a name="z_Toc74129687"></a><a name="z_Toc74160240"></a><font style="font-weight: bold;">1.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Collaboration Programs</u></font><font style="font-size: 10pt;">.&#160; Subject to and in accordance with the terms of this Agreement, Ionis and Biogen will be
                responsible for conducting three programs to discover, Develop, Manufacture and Commercialize Products (each, a &#8220;<font style="font-weight: bold; font-style: italic;">Collaboration Program</font>&#8221;), each to be focused on a different
                Collaboration Target, pursuant to which:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z6321bb25b3784c599ce9bece3bbc7a6c">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.2.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will use its Commercially Reasonable Efforts to (a) conduct drug discovery activities including drug screening, identification, characterization, optimization and other necessary activities according to the applicable Collaboration
              Program Research Plans to achieve Target Sanction status, (b) identify a Development Candidate for the applicable Collaboration Program, and (c) conduct drug development activities for each Development Candidate through completion of the
              first PoC Trial under a Collaboration Program in accordance with the applicable Development Plan; <font style="font-style: italic;">provided</font> that Ionis will not be required to commence work on more than [<a name="z_Hlk85627723"></a>***]






              Collaboration Programs in any rolling [***] month period; and</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4cbb97effe0b4bbaaab0f1b9467ba3ed">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.2.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>following the License Effective Date with respect to each Collaboration Program, Biogen will use its Commercially Reasonable Efforts to Develop, Manufacture and Commercialize at least one Product from each such Collaboration Program for
              which Biogen has exercised an Option in accordance with this Agreement.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z15afcd8494f14be3b9a915a70fecb6a2">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126717"></a><a name="z_Toc74129688"></a><a name="z_Toc74160241"></a><font style="font-weight: bold;">1.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>High Interest Targets</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf4b5286dcff54ec0b9d87cac1b244be6">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.3.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>High Interest Target List</u></font><font style="font-size: 10pt;">.&#160; Subject to the replacement rights set forth in <u>Section 1.3.2</u> below, the Parties
                will maintain, through the Neurology JSC, a list of mutually-agreed gene targets that are of high interest as potential Collaboration Targets (each such target, a &#8220;<font style="font-weight: bold; font-style: italic;">High Interest Target</font>&#8221;
                and such list the &#8220;<font style="font-weight: bold; font-style: italic;">High Interest Target List</font>&#8221;) according to the following procedure:</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z6ca8fb7ffaec4e0a8615b28358b9f2a1">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>As of the Effective Date, the Parties have agreed upon a written list containing the initial [***] High Interest Targets;</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z717dfe6de1ad486e8d5a333af4f31632">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>On [***], the number of High Interest Targets on the High Interest Target List will be reduced to [***] High Interest Targets.&#160; By [***], Biogen will provide Ionis a written notice designating the [***] gene targets (from the [***] gene
              targets listed on the High Interest Target List) that will remain as High Interest Targets;</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4a521285b5f04c2b8de686eb461bfd03">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Each time after the Effective Date that a Collaboration Target is designated under <u>Section 1.4.1</u>, <u>Section 1.4.2</u> or <u>Section 2.3</u>, the number of High Interest Targets for purposes of the High Interest Target List will
              be reduced by [***], and the High Interest Target so designated as a Collaboration Target will no longer be a High Interest Target for purposes of the High Interest Target List; and</div>
          </td>
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    </table>
    <div>&#160;</div>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">2</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7814cac4df734b30a997b9dcbd749c85">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Upon the earlier of the (i) [***]; and (ii) [***], the High Interest Target List will be dissolved and no gene target will thereafter be a High Interest Target.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4096dc6e9653423e95f916186b0d5ec2">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.3.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Replacement</u></font><font style="font-size: 10pt;">.&#160; At any time prior to the [***], Biogen may, in accordance with the terms of this Agreement, propose a
                replacement of a High Interest Target on the High Interest Target List, in which case Ionis and Biogen will mutually agree to replace such High Interest Target with a different gene target for purposes of the High Interest Target List; <font style="font-style: italic;">provided</font>, <font style="font-style: italic;">however</font>, that Ionis may only choose not to agree to replace a High Interest Target on the High Interest Target List with a gene target proposed by
                Biogen if, at the time of such proposal, [***], a &#8220;<font style="font-weight: bold; font-style: italic;">Dispositive Disagreement Condition</font>&#8221;).&#160; If Ionis notifies Biogen within [***] days after receipt of Biogen&#8217;s request to add a gene
                target as a High Interest Target that a Dispositive Disagreement Condition exists with respect to such gene target, the members of the Neurology JSC will discuss such Dispositive Disagreement Condition and work together in good faith to
                promptly repeat a similar process as set forth in this <u>Section 1.3.2</u> until Biogen and Ionis have selected a replacement target.&#160; With respect to any replacement under this <u>Section 1.3.2</u>, (A) the gene target substituted-in
                will thereafter be a High Interest Target on the High Interest Target List; and (B) the gene target removed will no longer be a High Interest Target on the High Interest Target List. The Parties acknowledge and agree that, as of August 4,
                2014, [***] has been designated as a Collaboration Target (as such term is defined in the Neurology II Agreement) that is an ALS Target (as such term is defined in the Neurology II Agreement) under the Neurology II Agreement and is no
                longer a Collaboration Target under this Agreement or the subject of this Agreement.</font></div>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z66e4d43b7b0e475e99d0e7aaf6b44bc7">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.3.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Replacement Limit</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding the foregoing, the Parties may not replace more than one High Interest Target in
                any rolling [***] month period, without Ionis&#8217; written consent (the &#8220;<font style="font-weight: bold; font-style: italic;">Replacement Limit</font>&#8221;); <font style="font-style: italic;">provided</font> that replacing-in another gene target
                under <u>Section 1.5.6</u> will not count for purposes of calculating the Replacement Limit.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z687fdf15e50b4fe3aef1cb3936dce78b">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126718"></a><a name="z_Toc74129689"></a><a name="z_Toc74160242"></a><font style="font-weight: bold;">1.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Collaboration Targets</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb267ff5a937e469a9edc299d7762c750">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.4.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Designation</u></font><font style="font-size: 10pt;">.&#160; The maximum number of Collaboration Targets will be three.&#160; Subject to the substitution rights set forth
                in <u>Section 1.4.2</u> below, as of the Effective Date, the first Collaboration Target is [***].&#160; At any time from [***] through [***], Biogen may designate the second Collaboration Target from the High Interest Target List, and at any
                time from [***] through the [***] anniversary of the Effective Date, Biogen may designate the third Collaboration Target from the High Interest Target List.</font></div>
          </td>
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    </table>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">3</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z55b4c6d64a144608bc9d99737e0259bd">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.4.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Substitution</u></font><font style="font-size: 10pt;">.&#160; With respect to any Collaboration Target that [***], Biogen may substitute such Collaboration Target
                with a gene target from the High Interest Target List by providing written notice to Ionis designating the gene target it is removing as a Collaboration Target and the High Interest Target from the High Interest Target List it is now
                designating as a Collaboration Target.&#160; Upon such substitution, (a) Ionis will begin a Collaboration Program on the High Interest Target so substituted-in as a Collaboration Target; and (b) Ionis&#8217; obligations, and Biogen&#8217;s rights, under
                this Agreement with respect to the removed gene target will terminate, and the removed gene target will no longer be a Collaboration Target.&#160; <font style="font-style: italic;">Notwithstanding the foregoing,</font> Biogen may not substitute
                more than [***] Collaboration Target (the &#8220;<font style="font-weight: bold; font-style: italic;">Substitution Limit</font>&#8221;), without Ionis&#8217; written consent; <font style="font-style: italic;">provided</font> that substituting-in an
                Accelerated Target under <u>Section 2.3</u> or another High Interest Target under <u>Section 1.5.6</u> or <u>Section 10.2.4(a)</u> will not count for purposes of calculating the Substitution Limit.</font></div>
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    <div>&#160;</div>
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        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126719"></a><a name="z_Toc74129690"></a><a name="z_Toc74160243"></a><font style="font-weight: bold;">1.5.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis&#8217; Research and Development Responsibilities</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.5.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Collaboration Program Research Plans</u></font><font style="font-size: 10pt;">.&#160; Ionis will carry out its drug discovery efforts for each Collaboration Program
                pursuant to the applicable Collaboration Program Research Plan in a manner consistent with its internal practices for other gene targets with the goal of achieving Target Sanction and identifying a Development Candidate for the applicable
                Collaboration Program as soon as practicable.&#160; Ionis will update each Collaboration Program Research Plan as needed and submit it to the Neurology JSC for its review and comment.&#160; In addition, once a Collaboration Program achieves Target
                Sanction, the Neurology JSC will begin preliminary discussions regarding an appropriate development plan for the contemplated Development Candidate under such Collaboration Program.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 72pt;">For each Collaboration Program, Ionis will provide the Neurology JSC:</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8aa09103529f4f6491e45733b58d2bdb">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>promptly (but no later than [***]) following the designation of a Collaboration Target, an initial research plan delineating the experiments that should be conducted to achieve Target Sanction for such Collaboration Target; and</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zef4f938dfd344d09a707979f632fe151">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>the initial plan approved by Ionis&#8217; RMC in connection with a Target Sanction under a Collaboration Program to identify a Development Candidate, as may be modified from time to time to address the discovery, research and optimization
              activities Ionis will conduct under the applicable Collaboration Program (together, each such plan under <u>Sections 1.5.1(a)</u> and <u>1.5.1(b)</u>, a &#8220;<font style="font-weight: bold; font-style: italic;">Collaboration Program Research
                Plan</font>&#8221;).</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 72pt;">Ionis will reasonably consider the comments provided by the Neurology JSC on each Collaboration Program Research Plan.</div>
    <div>&#160;</div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za1a6d18dfd114b0f8776453a810163b7">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref915123"></a><font style="font-weight: bold;">1.5.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Development Candidates; Development Plans; Option Acceleration</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4a82514423ba40fb8416db7d2a752456">

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          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref971919"></a><a name="z_Ref2042016"></a><font style="font-weight: bold;">(a)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will notify Biogen in writing within [***] days of designating a Development Candidate and will provide Biogen the applicable Development Candidate Data Package. For each Development Candidate under a Collaboration Program within
              [***] after designation of such Development Candidate, the Parties will mutually agree on an appropriate development plan for such Development Candidate through completion of the [***] (each, a &#8220;<font style="font-weight: bold; font-style: italic;">Development Plan</font>&#8221;) and will update <font style="font-variant: small-caps;"><u>Schedule 5.1.1</u></font> to add Specific Performance Milestone Events related to Biogen&#8217;s Development and Commercialization of the Development
              Candidate following the License Effective Date for the applicable Collaboration Program, which Specific Performance Milestone Events will be generally consistent with Biogen&#8217;s development timelines for its other drug development programs of
              similar stage and market potential.&#160; Prior to the License Effective Date with respect to a Collaboration Program, in the event the Parties are unable to agree upon the PoC Trial Design for a particular Collaboration Program, in lieu of
              mediation pursuant to <u>Section 12.1.2</u>, [***] will have final decision-making authority with respect to the PoC Trial Design. If the Parties are unable to agree upon the Specific Performance Milestone Events for a particular
              Collaboration Program, the matter will be resolved in accordance with <u>Section 12.1</u>, including, for the avoidance of doubt, mediation pursuant to <u>Section 12.1.2</u>, if necessary.&#160; Ionis will update each Development Plan as needed,
              but at least once Annually, and submit it to the Neurology JSC for its review and comment; <font style="font-style: italic;">provided</font>, <font style="font-style: italic;">however</font>, that [***], must be unanimously agreed to by the
              Neurology JSC.&#160; In addition, prior to the Initiation of the first Clinical Study under the Development Plan for a Collaboration Program, the Parties will endeavor to mutually agree on a communication plan regarding the public disclosure of
              data and results arising from such Collaboration Program; <font style="font-style: italic;">provided, that</font> if the Parties cannot agree on such a communication plan, then [***] will have final decision-making authority regarding any
              such communications occurring prior to the License Effective Date with respect to a Collaboration Program.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">5</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z639c5199ee73418d93569084977c8395">

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          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref970987"></a><a name="z_Ref2121807"></a><a name="z_Ref971562"></a><a name="z_Ref2018886"></a><font style="font-weight: bold;">(b)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>After designation of such Development Candidate, the Neurology JSC will agree on an initial estimate of the expected cost for Ionis to conduct the work [***] specified in the applicable Development Plan, including Ionis&#8217; expected [***] and
              [***] costs (each, a &#8220;<font style="font-weight: bold; font-style: italic;">Cost Estimate</font>&#8221;). The initial Cost Estimate [***] shall be agreed on by the Neurology JSC no later than [***] months prior to the anticipated [***]. Based on the
              Cost Estimates, the Neurology JSC will establish the [***] and [v] milestone payments for such Collaboration Program, which payments will be equal to (i) [***]; plus (ii) [***].&#160; The Parties will promptly negotiate in good faith using the
              Ionis/Biogen Preexisting Development Agreements as a basis for Cost Estimates and, if the total milestone payment [***] is more than $[***], the Parties will apportion such total milestone payment into smaller milestone payments in accordance
              with <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 1.5.2(b)</u>; <font style="font-style: italic;">provided, however</font>, that if [***], then the Neurology JSC shall determine whether and how to apportion such total
              milestone payment into smaller milestone payments.<font style="font-weight: bold; font-style: italic;">&#160;</font>Each such smaller milestone payment shall be payable by Biogen within [***] days after receipt of the applicable invoice by Biogen
              following [***]. If the total milestone payment [***] is $[***] or less, then such milestone payment shall become due in its entirety upon [***], and shall be payable by Biogen within [***] days after receipt of the applicable invoice by
              Biogen following [***].&#160; As part of this process, Ionis will provide the Neurology JSC with a good faith estimate of the cost to conduct the work necessary to develop such Development Candidates under the applicable Development Plan using a
              similar methodology as used under the Ionis/Biogen Preexisting Development Agreements.&#160; [***] months prior to the [***], using the process set forth above, the Neurology JSC will re-assess the total cost of such [***] and, if the cost has
              changed from the initial Cost Estimate, the Neurology JSC will adjust the applicable milestone payment accordingly, with any such adjustment to be agreed in writing to no later than the date that is [***] months prior to the [***]. Once there
              is less than [***] months prior to the [***], or such [***], if there are any changes to such [***] in accordance with this Agreement that result in an increase to the cost of such [***], then (A) if such cost is increased by more than [***],
              such increased costs will constitute an additional milestone payment to be paid in accordance with the provisions of this <u>Section 1.5.2(b)</u>, or (B) if such cost is increased by [***], such increase will not affect the milestone
              payments for such [***] established under this <u>Section 1.5.2(b)</u>, but instead will be handled in accordance with <u>Section 1.8</u>.&#160; For clarity, with respect to any increase in the cost of a [***] by more than [***]% under clause
              (A) of the preceding sentence, if such increased costs total $[***] or less and such [***], then such increased costs shall become due in their entirety immediately, and shall be payable by Biogen within [***] days after receipt of the
              applicable invoice by Biogen.&#160; Once the Neurology JSC has agreed on a Cost Estimate and/or the [***] milestone payments for such Collaboration Program are established under this <u>Section 1.5.2(b)</u> or <u>Section 1.8</u>, such agreement
              will be documented in a written side letter, in the form and format attached hereto as <font style="font-variant: small-caps;"><u>Appendix 3</u></font>, which shall be executed by both Parties.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z02fdd1de05e74e1b8cba208b3692663a">

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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will not be required to conduct any Development activities for a Development Candidate if an initial Development Plan, Specific Performance Milestone Events and the corresponding Cost Estimates have not been agreed to pursuant to
              this <u>Section 1.5.2</u>. Prior to such time as the Parties mutually agree on such Cost Estimate and/or the applicable [***] milestone payments and have executed a written side letter with respect to the foregoing in accordance with <u>Section






                1.5.2(b)</u>, Ionis may, in its discretion, commence Development activities for which it is responsible under this Agreement; <font style="font-style: italic;">provided, however</font>, that Biogen will not be responsible for any costs of
              such Development activities if commenced by Ionis prior to the execution of any such side letter unless and until such a side letter has been executed by the Parties, and in no event will Biogen be responsible for any amounts incurred by
              Ionis for such Development activities in excess of amounts set forth in the side letter executed by the Parties with respect to such Development activities.</div>
          </td>
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    </table>
    <div>&#160;</div>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">6</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf821802d820d4c4093854403834b43be">

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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If the PoC Trial for a Collaboration Program will be [***] or more, or require more than [***], then, if Ionis provides to Biogen the notice described in the following sentence, Ionis will not be required to conduct such PoC Trial for such
              Collaboration Program.&#160; Ionis will notify Biogen within [***] after finalization of the initial PoC Trial Design (or each time there is a material change thereto) for a Collaboration Program pursuant to <u>Section 1.5.2(a)</u> if Ionis
              elects not to conduct such PoC Trial for such Collaboration Program (such notice, an &#8220;<font style="font-weight: bold; font-style: italic;">Option Acceleration Notice</font>&#8221;).&#160; If Ionis has delivered an Option Acceleration Notice as provided
              in this <u>Section 1.5.2(d)</u>, Biogen will have [***] from its receipt of the data generated under the [***] for the first Phase 1 Trial for such Collaboration Program (an &#8220;<font style="font-weight: bold; font-style: italic;">Option
                Acceleration Deadline</font>&#8221;) to exercise its Option for the applicable Collaboration Program.&#160; If Biogen does not exercise its Option for the applicable Collaboration Program by the applicable Option Acceleration Deadline, Biogen&#8217;s Option
              under <u>Section 3.1</u> with respect to such Collaboration Program will expire and such Collaboration Program will terminate. In addition, after Biogen&#8217;s receipt of an Option Acceleration Notice with respect to a particular Collaboration
              Program, [***] will have final decision-making authority with respect to [***] to the extent related to the PoC Trial for the applicable Collaboration Program.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7b2317b67b004ed88ce99ad0cd5fe7d7">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2123402"></a><font style="font-weight: bold;">(e)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The Neurology JSC will attach each Development Plan and associated Cost Estimates to the minutes of the Neurology JSC for the first meeting following agreement regarding such Development Plan and Cost Estimates by the Parties.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z550b1fd52b624ce29b2b86afd8465b73">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.5.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Drug Development</u></font><font style="font-size: 10pt;">.&#160; Ionis will use Commercially Reasonable Efforts to conduct all activities under each Development Plan
                on the timeline set forth in the applicable Development Plan, including the following Development activities under this Agreement:</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4f1064d5a8174d6c9ddfd89b9ab13525">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to <u>Section 1.6</u> below, Develop each Development Candidate through [***]; <font style="font-style: italic;">provided, however,</font> that Ionis may discontinue such Development if at any time after having consulted, and
              having given good faith consideration to the recommendations of the Neurology JSC and a mutually-agreed Third Party expert, Ionis in good faith believes that continuing such Development would (i) pose an unacceptable risk or threat of harm in
              humans, or (ii) violate any Applicable Law, ethical principles, or principles of scientific integrity. Prior to discontinuing Development of a Development Candidate, Ionis will provide Biogen with reasonable advance notice of such
              discontinuation, including the grounds for Ionis&#8217; determination. If Ionis elects to discontinue Development of a Development Candidate pursuant to this <u>Section 1.5.3(a)</u>, Biogen may, in its discretion, elect to continue Development of
              the Development Candidate by providing Ionis with written notice of Biogen&#8217;s exercise of the Option within [***] after Ionis&#8217; written notice to Biogen of such discontinuation.&#160; If Biogen timely exercises its Option under this <u>Section
                1.5.3(a)</u>, then [***].</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">7</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za8704abc0e6d4f3690482e4b62db0d99">

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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold; font-style: italic;"><u>Phase 1 Trials</u></font><font style="font-size: 10pt;">.&#160; Each Phase 1<font style="font-weight: bold;">&#160;</font>Trial will be conducted in
                accordance with the applicable Phase 1 Trial Design set forth in the applicable Development Plan. Ionis will keep Biogen informed of the progress and status of each Phase 1 Trial.&#160; When [***] a Phase 1 Trial, Ionis will notify Biogen in
                writing within [***] days. Ionis will provide Biogen with the [***] as soon as practicable after such notice.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd288328495574194a5ae8cc1db97e276">

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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold; font-style: italic;"><u>PoC Trial</u></font><font style="font-size: 10pt;">.&#160; Each PoC<font style="font-weight: bold;">&#160;</font>Trial will be conducted in accordance
                with the PoC Trial Design set forth in the applicable Development Plan. Ionis will keep Biogen informed of the progress and status of each PoC Trial. When Ionis [***] a PoC Trial under the applicable Development Plan, Ionis will notify
                Biogen in writing within [***] days after such [***]. Ionis will provide Biogen with the [***] as soon as practicable after such notice.&#160; If Biogen exercises its Option prior to the Initiation of the first PoC Trial for a Collaboration
                Program, Biogen will keep Ionis informed of the progress and status of the PoC Trial for such Collaboration Program. When Biogen completes such PoC Trial, Biogen will notify Ionis in writing within [***] days after such completion, and will
                provide Ionis with [***] as soon as practicable after such notice.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z477201d60bed48c7bf3a0948e1c87f13">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.5.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Briefing of the Neurology JSC; Conduct of Research and Development</u></font><font style="font-size: 10pt;">.&#160; At each regularly scheduled meeting of the
                Neurology JSC, Ionis will provide to the Neurology JSC progress updates on (a) the status of each Collaboration Program generally; (b) Ionis&#8217; research activities on the High Interest Targets conducted pursuant to <u>Section 2.3</u>; (c)
                activities conducted under each Collaboration Program Research Plan, including progress towards Target Sanction or Development Candidate, as applicable; and (d) activities conducted under the Development Plans for each Development
                Candidate, in each case, together with a summary of data associated with Ionis&#8217; research and/or Development activities for each Collaboration Program.&#160; Ionis will conduct its work under each Collaboration Program in a good scientific
                manner, and in compliance with all applicable good laboratory practices and cGMP, and all Applicable Laws.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z0caf953abdb848d4887e7601d6388944">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.5.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Clinical Supplies by Ionis</u></font><font style="font-size: 10pt;">.&#160; Ionis, at its expense, will supply API (on its own or through a CMO approved by Biogen)
                and Clinical Supplies to support the Research and Development activities under each Collaboration Program Research Plan and each Development Plan through the License Effective Date for such Collaboration Program.&#160; If Biogen exercises an
                Option at least [***] prior to the planned Initiation of the PoC Trial for the applicable Collaboration Program, Biogen may elect to either have (a) Ionis supply Clinical Supplies for such PoC Trial (on its own or through a CMO approved by
                Biogen), in which case Biogen will pay Ionis an amount equal to [***], or (b) a CMO supply Clinical Supplies for such PoC Trial in accordance with the Manufacturing Agreement entered into with such CMO. If Biogen exercises an Option prior
                to, but less than [***] before, the planned Initiation of the PoC Trial for the applicable Collaboration Program, Ionis will supply Clinical Supplies for such PoC Trial (on its own or through a CMO approved by Biogen) and Biogen will pay
                Ionis an amount equal to [***].</font></div>
          </td>
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    </table>
    <div>&#160;</div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z91d86d044698487896fed7f268e1679d">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.5.6.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Collaboration with Third Parties</u></font><font style="font-size: 10pt;">.&#160; Ionis may engage one or more academic or non-profit institutions to conduct work
                under any Collaboration Program Research Plan or Development Plan or to conduct drug discovery activities to identify a High Interest Target Development Candidate pursuant to <u>Section 2.3</u>; <font style="font-style: italic;">provided</font>,
                <font style="font-style: italic;">however</font>, that (a) with respect to any such academic or non-profit institution engaged to conduct such activities with respect to a Collaboration Target, where such engagement occurs after the date
                such Collaboration Target is designated, or (b) with respect to any such academic or non-profit institution engaged to conduct such activities with respect to one of the remaining High Interest Targets, where such engagement occurs after
                the later of [***] or the date such High Interest Target is designated, (i) prior to engaging such academic or non-profit institution to conduct such activities, Ionis will consult with Biogen in good faith with respect to the terms of any
                agreement or amendment to an existing agreement to be entered into with such institution and consider Biogen&#8217;s comments with respect thereto in good faith and (ii) if Ionis enters into any such agreement or amendment on terms objected to by
                Biogen in a written notice provided to Ionis prior to the execution thereof, it shall promptly so notify Biogen, which notice will include a copy of such agreement or amendment, and within [***] days following Biogen&#8217;s receipt of such
                notice, Biogen may elect to replace the applicable High Interest Target or Collaboration Target with a different gene target in accordance with the procedures set forth in <u>Section 1.3.2</u> or <u>Section 1.4.2</u>, as applicable, and
                such replacement will not be counted for purposes of determining whether Biogen has exceeded the Replacement Limit or Substitution Limit, as applicable.</font></div>
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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc417c7c278d642818547c1f7f02198db">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126720"></a><a name="z_Toc74129691"></a><a name="z_Toc74160244"></a><font style="font-weight: bold;">1.6.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Research and Development Costs and Expenses</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd44f960e72384334bcff9b3999dc8a7b">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.6.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Research and Development Costs Paid by Ionis</u></font><font style="font-size: 10pt;">.&#160; Until the License Effective Date with respect to a Collaboration
                Program, Ionis will be responsible for all research and Development activities for each Development Candidate under the Collaboration Program Research Plan and Development Plan with respect to such Collaboration Program and, except as
                otherwise provided under <u>Section 1.6.2(a)</u>, all costs and expenses associated therewith.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z748aae2630d1477a99ebe978f850005d">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.6.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Development Costs Paid by Biogen</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z073f53715a094f92bd7c5fe08b7293a1">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Before the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; Prior to the License Effective Date with respect to a Collaboration Program, Biogen
                will be responsible for paying any Biogen-Approved Costs resulting from Biogen-Approved Changes using the payment mechanisms set forth in <u>Section 1.8</u>.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zeabbdc2500f74ec6836fb685b06e67e5">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Additional Activities Approved by Biogen</u></font><font style="font-size: 10pt;">.&#160; If, with respect to a particular Collaboration Program, Biogen desires that
                either Ionis or a Third Party </font><font style="font-size: 10pt;">[***] or conduct other work to support Approval of a Product, including</font><font style="font-size: 10pt;"> [***], prior to the License Effective Date with respect to
                such Collaboration Program, and Ionis agrees to perform such work, Biogen will pay the costs of conducting such work using the payment mechanism set forth in <u>Section 1.8</u>.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z3f65b31cc4284914bbb4a027e6a460af">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>After the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; After the License Effective Date with respect to a Collaboration Program, Biogen
                will be solely responsible for the costs and expenses related to the Development, Manufacture and Commercialization of Products with respect to such Collaboration Program, including any work performed by Ionis at Biogen&#8217;s request, and all
                supply chain planning and decision-making.&#160; All such work performed by Ionis at Biogen&#8217;s request will be conducted and reimbursed pursuant to a budget agreed upon by the Parties.</font></div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za1e94fc158ff4e308618f03d3ffcb8eb">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126721"></a><a name="z_Toc74129692"></a><a name="z_Toc74160245"></a><font style="font-weight: bold;">1.7.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Drug Discovery and Drug Development Terms</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z25818fa5cf7648e6a03464481e9bee3c">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.7.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The term for the conduct of the Drug Discovery Program will begin on the Effective Date and will end upon the earlier of (a) designation of a Development Candidate for each Collaboration Program and (b) the [***] anniversary of the
              Effective Date (the &#8220;<font style="font-weight: bold; font-style: italic;">Drug Discovery Term</font>&#8221;); <font style="font-style: italic;">provided</font>, <font style="font-style: italic;">however</font>, that if Ionis is still conducting
              work under a Collaboration Program Research Plan on the date of expiration of the Drug Discovery Term, the Drug Discovery Term will be automatically extended until the earlier of the (i) date on which Ionis completes all activities under each
              such Collaboration Program Research Plan and (ii) the [***] anniversary of the Effective Date; <font style="font-style: italic;">provided further </font>that if, as a result of Ionis&#8217; breach, Biogen has substituted a High Interest Target
              for a Collaboration Target pursuant to <u>Section 10.2.4(a)</u>, and Ionis is conducting activities under the applicable Collaboration Program Research Plan on the date on which the Drug Discovery Term would otherwise expire, the Drug
              Discovery Term will be extended for a reasonable period of time (not to exceed the [***] anniversary of the date of such substitution) to allow Ionis to complete such activities.</div>
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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zce3a6d8faadb447e99da878bde5ff7ee">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.7.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The term for the conduct of the Drug Development Program will begin on the designation of the first Development Candidate and will end upon the earlier of (a) [***] for a Development Candidate under each Collaboration Program, which the
              Parties estimate will be approximately [***] years after the Effective Date, (b) exercise by Biogen of each of its Options for each Collaboration Program; (c) the termination of the last Collaboration Program; and (d) mutual agreement of the
              Parties to terminate the Drug Development Program.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc21feff09cde495999aa2625ae1b8f6a">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.7.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Upon the end of the Drug Discovery Term, subject to <u>Section 1.7.4</u>, (a) Ionis will no longer have an obligation to perform any activities under <u>Section 1.5</u>; (b) any Collaboration Programs that have not reached the
              Development Candidate stage will no longer be Collaboration Programs and the applicable gene targets associated therewith will no longer be Collaboration Targets; (c) Ionis&#8217; obligations and Biogen&#8217;s rights under this Agreement with respect to
              such gene target and any ASOs targeting such gene target will then terminate, and Ionis will be free to Develop and Commercialize on its own or with a Third Party such gene target and any Compounds targeting such gene target; and (d) Ionis
              will own any data generated under the Collaboration Program for such gene target and any Compounds targeting such gene target.&#160; For clarity, except to the extent explicitly set forth in the foregoing, the expiration of the Drug Discovery Term
              will not affect Biogen&#8217;s rights or Ionis&#8217; obligations with respect to Collaboration Programs under this Agreement that have reached the Development Candidate stage by the end of the Drug Discovery Term, including, but not limited to, Ionis&#8217;
              obligation under <u>Section 1.5.3</u> to Develop each such Development Candidate under the remaining Collaboration Programs through the [***].</div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb098e8298ed147f1b33a86bc3e7577e8">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.7.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If, despite Ionis&#8217; Commercially Reasonable Efforts, by the end of the Drug Discovery Term, Ionis has not designated a Development Candidate for a particular Collaboration Program, then if at any time during the [***] period after the end
              of the Drug Discovery Term Ionis&#8217; RMC designates an ASO discovered by Ionis that is designed to bind to the RNA that encodes the Collaboration Target that was the subject of such Collaboration Program as a development candidate ready to start
              IND-Enabling Toxicology Studies (such ASO, a &#8220;<font style="font-weight: bold; font-style: italic;">Carryover Development Candidate</font>&#8221;), then, Ionis will notify Biogen and will provide Biogen with the data package presented to Ionis&#8217; RMC
              to approve such Carryover Development Candidate. Biogen will then have [***] days from its receipt of such package to elect to enter into an agreement (or amendment to this Agreement) for an option and license under the same terms as set
              forth in this Agreement (except that no additional upfront payment under <u>Section 6.1</u> will be due). If, within [***] days after Biogen&#8217;s receipt of such notice from Ionis, Biogen provides Ionis with written notice that it accepts such
              offer from Ionis for such Carryover Development Candidate, the Parties will execute an agreement (or amendment to this Agreement) regarding such Carryover Development Candidate containing the same terms as those described herein. If Biogen
              either <font style="color: rgb(0, 0, 0);">notifies </font>Ionis <font style="color: rgb(0, 0, 0);">that it declines the </font>offer for such Carryover Development Candidate,<font style="color: rgb(0, 0, 0);"> or </font>Biogen does not
              provide Ionis with written notice during such [***] day period that Biogen accepts such offer from Ionis for such Carryover Development Candidate, then Ionis will be free to research, develop, manufacture and commercialize such Carryover
              Development Candidate (and/or any other ASO designed to bind to the RNA that encodes the gene target targeted by such Carryover Development Candidate) by itself or with or for a Third Party.</div>
          </td>
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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z5c6eb72975b845e8b2f182d1b1609d4b">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126722"></a><a name="z_Toc74129693"></a><a name="z_Toc74160246"></a><a name="z_Ref2121655"></a><a name="z_Ref2041035"></a><font style="font-weight: bold;">1.8.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Additional Activities Requested by Biogen</u></font><font style="font-size: 10pt;">.&#160; Biogen will pay Ionis (a) costs resulting from requests from Biogen that
                Ionis perform additional work under this Agreement, including, the cost of Ionis&#8217; time incurred in performing such work at the then-applicable Ionis FTE Rate (&#8220;<font style="font-weight: bold; font-style: italic;">FTE Costs</font>&#8221;), the
                cost of </font><font style="font-size: 10pt;">[***], and any [***] incurred by Ionis in performing such work, or (b) Additional Plan Costs resulting from Biogen-Approved Changes (such costs, collectively &#8220;<font style="font-weight: bold; font-style: italic;">Biogen-Approved Costs</font>&#8221;).&#160; For clarity, the Biogen-Approved Costs shall include Additional Plan Costs for a </font><font style="font-size: 10pt;">[***] that result from changes to such [***] made after the
                milestone payment with respect to such [***] is agreed upon in writing by the Parties pursuant to <u>Section 1.5.2(b)</u>, if such cost is increased by [***] as described in <u>Section 1.5.2(b)</u>).&#160; For the avoidance of doubt, if such
                cost is increased by [***] as described in <u>Section 1.5.2(b)</u>), such increased costs will constitute an additional milestone payment to be paid in accordance with the provisions of <u>Section 1.5.2(b)</u>, and will not be handled
                under this <u>Section 1.8</u>.&#160; Ionis will permit Biogen to review, negotiate (with Ionis) and approve (including through the Neurology JSC) all Biogen-Approved Costs; <font style="font-style: italic;">provided</font> Biogen will provide
                a substantive, good faith response within [***] days of Ionis&#8217; request for approval.&#160; For clarity (1) this <u>Section 1.8</u> will not be used to establish the initial milestone payments under <u>Section 1.5.2(b)</u>, and (2) expenses
                paid under this <u>Section 1.8</u> are not subject to reconciliation.&#160; Once Biogen-Approved Costs are mutually agreed under this <u>Section 1.8</u>, such agreement will be documented in a written side letter, in the form and format
                attached hereto as <font style="font-variant: small-caps;"><u>Appendix 3</u></font>, which shall be executed by both Parties. Prior to such time as the Parties mutually agree on such Biogen-Approved Costs and have executed a written side
                letter with respect to the foregoing, Ionis may, in its discretion, commence Development activities for which it is responsible under this Agreement; <font style="font-style: italic;">provided, however</font>, that Biogen will not be
                responsible for any costs of such Development activities if commenced by Ionis prior to the execution of any such side letter unless and until such a side letter has been executed by the Parties, and in no event will Biogen be responsible
                for any amounts incurred by Ionis for such Development activities in excess of amounts set forth in the side letter executed by the Parties with respect to such Development activities.</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z6f6969b16d9d4d2ca8656ef2acf49ecd">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref365649070"></a><a name="z_Ref472542652"></a><font style="font-weight: bold;">1.8.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>For Biogen-Approved Costs resulting from [***], or from [***] that are made after the milestone payment with respect to such [***] is agreed upon in writing by the Parties pursuant to <u>Section 1.5.2(b)</u>, Biogen will pay Ionis for
              such Biogen-Approved Costs [***] within [***] days after receipt of the applicable invoice by Biogen following [***], or the date that Biogen agrees to such changes to such [***], as applicable; <font style="font-style: italic;">provided,
                however</font>, that if such Biogen-Approved Costs total more than $[***], the Parties will apportion such total Biogen-Approved Costs into smaller milestone payments in accordance with <font style="font-variant: small-caps;"><u>Schedule </u></font><u>1.5.2(b)</u>
              (or, if such Biogen-Approved Costs result from changes to a [***], then the Neurology JSC shall determine whether and how to apportion such Biogen-Approved Costs into smaller milestone payments).&#160; Each such smaller milestone payment shall be
              payable by Biogen within [***] days after receipt of the applicable invoice by Biogen following the event that triggered such milestone payment.&#160; If such Biogen-Approved Costs total $[***] or less, then such Biogen-Approved Costs shall become
              due in their entirety upon [***] or the date that the Parties agree to such Biogen-Approved Costs, if such [***], and shall be payable by Biogen within [***] days after receipt of the applicable invoice by Biogen following [***] or the date
              of such agreement regarding the Biogen-Approved Costs, as applicable.</div>
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        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref365649074"></a><font style="font-weight: bold;">1.8.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>For Biogen-Approved Costs resulting from [***], Biogen will pay Ionis, in accordance with any applicable [***] entered into by the Parties after the Effective Date, for [***]% of such Biogen-Approved Costs within [***] days after receipt
              of the applicable invoice by Biogen following Biogen&#8217;s request or approval for such [***], and the remaining [***]% within [***] days after receipt of the applicable invoice by Biogen following [***].</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc383b626a3924e0c88f3b043386d54e6">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref364770980"></a><a name="z_Ref364415807"></a><font style="font-weight: bold;">1.8.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>For any Biogen-Approved Cost that (i) has an Estimated Biogen-Approved Cost of less than [***] and (ii) does not result from [***], from [***] that are made after the milestone payment with respect to such [***] is agreed upon in writing
              by the Parties pursuant to <u>Section 1.5.2(b)</u> or from [***], Ionis will invoice Biogen directly for such Biogen-Approved Cost in advance, on a [***] basis based upon the applicable Estimated Biogen-Approved Costs and Biogen will pay the
              invoices submitted pursuant to this <u>Section 1.8.3</u> for such Biogen-Approved Costs within [***] days after receipt of the applicable invoice by Biogen.&#160; For purposes of this <u>Section 1.8.3</u>, &#8220;<font style="font-weight: bold; font-style: italic;">Measurement Period</font>&#8221; means each [***].</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zca8fd9f125e6475496642bd514215dc1">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref364771093"></a><font style="font-weight: bold;">1.8.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>For any Biogen-Approved Costs that (i) has an Estimated Biogen-Approved Cost of $[***] or more and (ii) does not result from [***], from [***] that are made after the milestone payment with respect to such [***] is agreed upon in writing
              by the Parties pursuant to <u>Section 1.5.2(b)</u> or from [***], Ionis will invoice Biogen directly for such Biogen-Approved Cost in advance on a [***] basis based upon the applicable Estimated Biogen-Approved Costs and Biogen will pay the
              invoices submitted pursuant to this <u>Section 1.8.4</u> for such Biogen-Approved Costs within [***] days after receipt of the applicable invoice by Biogen.&#160; For purposes of this <u>Section 1.8.4</u>, &#8220;<font style="font-weight: bold; font-style: italic;">Measurement Period</font>&#8221; means each [***].</div>
          </td>
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    <div>&#160;</div>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">12</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z91affe063c9c4f749e1b277d89d24dc6">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref365571046"></a><font style="font-weight: bold;">1.8.5.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Within [***] days after the end of the applicable Measurement Period, Ionis will provide Biogen<a name="z_Ref309141644"></a> with a written statement (i) reconciling the [***] the Estimated Biogen-Approved Costs and the [***] within the
              Biogen-Approved Costs (the &#8220;<font style="font-weight: bold; font-style: italic;">Actual Biogen-Approved Costs</font>&#8221;) incurred by Ionis during the just-ended Measurement Period and (ii) confirming that the FTE Costs portion of the Estimated
              Biogen-Approved Costs is a reasonable approximation of the actual FTE Costs incurred by Ionis during the just-ended Measurement Period. If the Estimated Biogen-Approved Costs exceed the Actual Biogen-Approved Costs for such period, Ionis will
              offset all such excess payments against any future invoices under this Agreement until Biogen has recouped all such overpayments.&#160; If the Estimated Biogen-Approved Costs are less than the Actual Biogen-Approved Costs for such period, Ionis
              will invoice Biogen for the remaining amounts owed to Ionis, and Biogen will pay such invoices within [***] days of receipt of such invoice. In the case where additional activities under this <u>Section 1.8</u> are performed by a Third
              Party, the Parties will arrange for the Third Party to directly bill Biogen and for Biogen to pay such Third Party directly.</div>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4a8770960d9640d79210dadb1261f889">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126723"></a><a name="z_Toc74129694"></a><a name="z_Toc74160247"></a><font style="font-weight: bold;">1.9.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Participation in Regulatory Meetings</u></font><font style="font-size: 10pt;">.&#160; Prior to the License Effective Date for each Collaboration Program:</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf903d7919d38404fa0a270872b9a59d4">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will not initiate discussions with a Regulatory Authority regarding the [***] for a Collaboration Program until Ionis and Biogen have mutually agreed upon such [***], as applicable.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd7e0a209242f4c44b37fa7941d7be63f">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>To the extent practical, prior to any scheduled meeting with a Regulatory Authority regarding the [***] for a Collaboration Program, (i) the Parties will discuss and mutually agree upon the timing and objectives for such meeting and (ii)
              Ionis will provide Biogen with (A) an invitation to attend at least one pre-meeting rehearsal with Ionis and (B) an opportunity to discuss the strategy for such meeting with Ionis.&#160; In addition, Ionis will allow Biogen to participate in any
              such meeting under the direction of Ionis.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za836c9db50114b9ba1067949d6f0bfee">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>In each case, to the extent regarding the [***] for a Collaboration Program, Ionis will promptly provide Biogen with (i) final copies of all material correspondence with and submission to any Regulatory Authority promptly following
              submission thereof, (ii) a copy of material communications received from a Regulatory Authority, and (iii) a copy of the minutes from each meeting with a Regulatory Authority.</div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z0ed4e87c87bf4faeb4563c979beb7bc2">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will provide Biogen with a draft of all correspondence with and submissions to any Regulatory Authority that materially impact the [***] for a Collaboration Program sufficiently in advance of providing such correspondence or
              submission to the applicable Regulatory Authority to enable Biogen to have a meaningful opportunity to provide comments on the contents thereof.&#160; The contents of such correspondence or submission to any Regulatory Authority must reflect the
              Development Plan.&#160; The Parties will mutually agree on the contents of all such correspondence or submissions; <font style="font-style: italic;">provided</font> that if mutual agreement is not obtained prior to a Regulatory Authority&#8217;s
              requirement for a response, Ionis will consider in good faith including any comments provided by Biogen to such correspondence or submissions.</div>
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        </tr>

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    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">13</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd0e6c5d674b84eb3bc4a0757a0e4dee7">

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          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126724"></a><a name="z_Toc74129695"></a><a name="z_Toc74160248"></a><font style="font-weight: bold;">1.10.</font></td>
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            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Impact of [</u></font><font style="font-size: 10pt;"><u>***</u></font><font style="font-size: 10pt; font-weight: bold;"><u>] Development Path</u></font><font style="font-size: 10pt;">.&#160; If the Parties mutually agree to amend a Development Plan where such amended plan contemplates [***], then the Parties will make appropriate changes to the operational terms of this Agreement (<u>e.g.</u>, [***])
                to reflect such [***] development plan, consistent with the comparable provisions necessary to support the development plan under the [***].</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z69358e1851b6405680c85c1f8dfffa41">

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          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126725"></a><a name="z_Toc74129696"></a><a name="z_Toc74160249"></a><font style="font-weight: bold;">1.11.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Research and Development Management</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z5e47d28280ad405890c5c45b604c9cdb">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.11.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Neurology JSC</u></font><font style="font-size: 10pt;">.&#160; The Parties will establish a joint steering committee (the &#8220;<font style="font-weight: bold; font-style: italic;">Neurology</font>&#160;<font style="font-weight: bold; font-style: italic;">JSC</font>&#8221;) to provide advice and make recommendations on the conduct of activities under each Collaboration Program. The Neurology JSC will consist of two
                representatives appointed by Ionis and two representatives appointed by Biogen. Each Neurology JSC member will be a senior scientific staff leader or have other experience and expertise appropriate for the stage of development of the
                Collaboration Programs. Each Party will designate one of its two representatives who is empowered by such Party to make decisions related to the performance of such Party&#8217;s obligations under this Agreement to act as the co-chair of the
                Neurology JSC. The co-chairs will be responsible for overseeing the activities of the Neurology JSC consistent with the responsibilities set forth in <u>Section 1.11.2</u>. <font style="font-variant: small-caps;"><u>Schedule</u></font><u>
                  1.11.1</u> sets forth certain Neurology JSC governance matters agreed to as of the Effective Date. The Neurology JSC will determine the Neurology JSC operating procedures at its first meeting, including the Neurology JSC&#8217;s policies for
                replacement of Neurology JSC members, policies for participation by additional representatives or consultants invited to attend Neurology JSC meetings, and the location of meetings, which will be codified in the written minutes of the first
                Neurology JSC meeting. Each Party will be responsible for the costs and expenses of its own employees or consultants attending Neurology JSC meetings. Ionis and Biogen will use reasonable efforts to schedule meetings of the Neurology JSC to
                take place at the same location and on the same dates as meetings of the joint development and steering committees under the Ionis/Biogen Additional Agreements, to maximize the use of each Party&#8217;s time, increase information sharing
                efficiencies and reduce the cost of additional travel, lodging and related expenses.&#160; Once a Development Candidate is designated under a Collaboration Program, the Parties will consider in good faith creating a separate subcommittee of the
                Neurology JSC to govern the activities under this Agreement with respect to such Collaboration Program.</font></div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2afa7f7061584331b18189a7d1e94d81">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.11.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Role of the Neurology JSC</u></font><font style="font-size: 10pt;">.&#160; Without limiting any of the foregoing, subject to <u>Section 1.11.3</u>, the Neurology JSC
                will perform the following functions, some or all of which may be addressed directly at any given Neurology JSC meeting:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbd43ece900d54d678ddeee8aa4ae44b6">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>maintain the list of Collaboration Targets and the High Interest Target List, as such lists may be updated from time to time in accordance with this Agreement, and attach such lists to the minutes of the next meeting of the Neurology JSC
              following any update to the High Interest Target List or Collaboration Targets;</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">14</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7a28cf314467400ea715a38e53a7d8f7">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>review and provide advice on the Collaboration Program Research Plan for each Collaboration Program, and the Development Plan for each Development Candidate;</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc7332839f9a74216930c480a29358604">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>review the overall progress of Ionis&#8217; efforts to achieve Target Sanction with respect to each Collaboration Program that has not achieved Target Sanction status;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc5a0858755bf49aba304f955c8574e59">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>review the overall progress of Ionis&#8217; efforts to discover, identify, optimize and select the Development Candidate for each Collaboration Program;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zef5cd6ad775e40698ac978020a7e841d">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>amend each Collaboration Program Research Plan for each Collaboration Program, and the Development Plan for each Development Candidate upon unanimous agreement;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zee8ca5d146a44f2b97eb39736b349578">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(f)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>agree on Cost Estimates and the [***] milestone payments under <u>Section 1.5.2(b)</u>;</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf4a3be2c93b843178db10725e2ca0d19">

        <tr>
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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(g)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>approve Biogen-Approved Costs pursuant to <u>Section 1.8</u>;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4d6755183cfd4f2dbe50f6887384f496">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(h)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>if the milestone payment agreed upon in writing by the Parties pursuant to <u>Section 1.5.2(b)</u> with respect to a [***] exceeds $[***], establishing whether and how such payment shall be apportioned into smaller milestone payments as
              described in <u>Section 1.5.2(b)</u>;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z6ceb9c85c4194a34a40dc20bb6401d39">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>if any Biogen-Approved Costs that result from [***] exceed $[***], establishing whether and how such payments shall be apportioned into smaller milestone payments as described in <u>Section 1.8.1</u>;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z39af06f458f341aeb65593f9d4465e4a">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(j)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>review and provide advice on the Phase 1 Trial Design and the PoC Trial Design for each Collaboration Program; and</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb2fdfa2b848d46348889c2adc5b0db60">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(k)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>such other review and advisory responsibilities as may be assigned to the Neurology JSC pursuant to this Agreement.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z22014567d12646228d3f706ed9d81168">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.11.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Decision-Making</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za38f5c5780c041c185ee37fca1febf59">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Decisions by the Neurology JSC will be made by unanimous consent, with each Party&#8217;s representatives having, collectively, one vote.&#160; At any given meeting of the Neurology JSC, quorum will have deemed to be reached if a voting
              representative of each Party is present or participating in such meeting.&#160; No action taken at any meeting of the Neurology JSC will be effective unless there is a quorum at such meeting.&#160; Unless otherwise specified in this Agreement, no
              action will be taken with respect to a matter for which the Neurology JSC has not reached unanimous consensus.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">15</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z3fcb5b3bbec244e5b28f1f541ce8e174">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will give due consideration to, and consider in good faith, the recommendations and advice of the Neurology JSC regarding the conduct of the Collaboration Program. Subject to <u>Section 1.5.1</u> and <u>Section 1.5.2(a)</u>, prior
              to the License Effective Date for a particular Collaboration Program, Ionis will have the final decision-making authority regarding [***]. After the License Effective Date for a particular Collaboration Program, Biogen will have the final
              decision-making authority regarding [***] for such Collaboration Program, <font style="font-style: italic;">provided, however</font>, that [***]. Except as otherwise permitted by <u>Section 1.5.2(a)</u> and <u>Section 1.11.2(e)</u>, the
              Neurology JSC will have no decision-making authority and will act as a forum for sharing information about the activities conducted by the Parties hereunder and as an advisory body, in each case only on the matters described in, and to the
              extent set forth in, this Agreement.</div>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2a85ba7793b64d86ba6602ef03dd3ee2">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref972097"></a><font style="font-weight: bold;">1.11.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Term of the Neurology JSC</u></font><font style="font-size: 10pt;">.&#160; Ionis&#8217; obligation to participate in the Neurology JSC, or any of its subcommittees, will
                terminate upon Biogen&#8217;s exercise (or expiration) of the Option for the last Collaboration Program. Thereafter, Ionis will have the right, but not the obligation, to participate in Neurology JSC meetings upon Ionis&#8217; request.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbdad1b7e99554c0eb6b539a8f52e7b35">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.11.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Alliance Managers</u></font><font style="font-size: 10pt;">.&#160; Each Party will appoint a representative to act as its alliance manager under this Agreement (each,
                an &#8220;<font style="font-weight: bold; font-style: italic;">Alliance Manager</font>&#8221;). Each Alliance Manager will be responsible for supporting the Neurology JSC and performing the activities listed in <font style="font-variant: small-caps;"><u>Schedule</u></font><u>
                  1.11.5</u>.</font></div>
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    </table>
    <div>&#160;</div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 2</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126726"></a><a name="z_Toc74129697"></a><a name="z_Toc74160250"></a>EXCLUSIVITY COVENANTS</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z990eebd715af4fc3a9c5469b8cdd3377">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126727"></a><a name="z_Toc74129698"></a><a name="z_Toc74160251"></a><a name="z_Ref959718"></a><font style="font-weight: bold;">2.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Exclusivity; Right of First Negotiation</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z5fcf8650567c40118e843f26bf2d14c2">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref914171"></a><font style="font-weight: bold;">2.1.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Exclusivity Covenants</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd6a6bf34f0594222b313da5c2469399c">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis&#8217; Exclusivity Covenants During the Drug Discovery Term for High Interest Targets</u></font><font style="font-size: 10pt;">.&#160; On a High Interest
                Target-by-High Interest Target basis, Ionis agrees that, except in the performance of its obligations or exercise of its rights under this Agreement and except as set forth in <u>Section 2.3,</u>&#160;<u>Section 2.1.2</u>, <u>Section 2.1.3</u>,
                <u>Section 10.4.2</u> or <u>Section 10.4.3</u>, it will not work for the benefit of any Third Party (including the grant of any license to any Third Party) with respect to the discovery, research, development, manufacture or
                commercialization of an <a name="z_cp_text_2_168"></a>ASO that is designed to bind to the RNA that encodes such High Interest Target in the Field from the Effective Date until the date on which the High Interest Target List is dissolved in
                accordance with <u>Section 1.3.1(d)</u>.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">16</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z58b007339cf641c9b0895ab4726265ac">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>The Parties&#8217; Exclusivity Covenants During the Option Period for Collaboration Targets</u></font><font style="font-size: 10pt;">.&#160; On a Collaboration
                Target-by-Collaboration Target basis, each Party agrees that, except in the performance of its obligations or exercise of its rights under this Agreement and except as set forth in <u>Section 2.1.2</u>, <u>Section 2.1.3</u>, <u>Section
                  10.4.2</u> or <u>Section 10.4.3</u>, it will not work independently or for or with any of its Affiliates or any Third Party (including the grant of any license to any Third Party) with respect to discovery, research, development,
                manufacture or commercialization of an <a name="z_cp_text_1_171"></a>ASO that is designed to bind to the RNA that encodes such Collaboration Target in the Field from the date such gene target was designated a Collaboration Target under
                this Agreement through the earlier of (i) the License Effective Date with respect to the Collaboration Program for such Collaboration Target and (ii) the expiration or earlier termination of the applicable Option Period.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zacab791f8f914097a615cb29bab3769e">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis&#8217; Exclusivity Covenant after the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; On a Collaboration Target-by-Collaboration Target basis,
                except as set forth in <u>Section 2.1.2</u>, <u>Section 2.1.3</u>, <u>Section 10.4.2</u> or <u>Section 10.4.3</u>, after the License Effective Date for the Collaboration Program with respect to the applicable Collaboration Target, Ionis
                will not <font style="color: rgb(0, 0, 0);">work independently or </font>for <font style="color: rgb(0, 0, 0);">or with any of its </font>Affiliates <font style="color: rgb(0, 0, 0);">or any Third </font>Party <font style="color: rgb(0, 0, 0);">(</font>including <font style="color: rgb(0, 0, 0);">the grant of any license to any Third </font>Party<font style="color: rgb(0, 0, 0);">) with respect to:</font></font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z03a322e5361545c5b65fca75bff064b1">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>discovery, research or development of an <a name="z_cp_text_1_173"></a>ASO that is designed to bind to the RNA that encodes such Collaboration Target in the Field until [***]; and</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z1fb90f83ebd0427d957b563fb761de6d">

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          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>on a country-by-country basis, commercializing an <a name="z_cp_text_1_175"></a>ASO that is designed to bind to the RNA that encodes such Collaboration Target in the Field until [***].</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7404510a13bc43e7b2e94da8375c4431">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Exclusivity Covenant After the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; After the License Effective Date for a particular
                Collaboration Program, Biogen&#8217;s exclusivity obligations under <u>Section 2.1.1(b)</u> with respect to the Collaboration Target that is the subject of such Collaboration Program will be extended and will continue for so long as and to the
                extent of Ionis&#8217; exclusivity obligations under <u>Section 2.1.1(c)</u>.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 72pt;">Except as expressly set forth in <u>Section 2.1.2</u>, <u>Section 2.1.3</u>, or <u>Section 10.4.3</u>, in no event will Ionis have the right to [***].</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z34e6df2a6b354a29882c4a826402831d">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">2.1.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Right of First Negotiation for Follow-On Compounds</u></font><font style="font-size: 10pt;">.&#160; On a Collaboration Program-by-Collaboration Program basis, during
                the period commencing on the Effective Date and ending upon (i) if the applicable Option is not exercised in accordance with this Agreement, [***] or (ii) if the applicable Option is exercised in accordance with this Agreement, </font><font style="font-size: 10pt;">[***] (such period, the &#8220;<font style="font-weight: bold; font-style: italic;">ROFN Period</font>&#8221;), Ionis hereby grants to Biogen a right of first negotiation to develop and commercialize any Follow-On Compound
                developed by or on behalf of Ionis, which right of first negotiation is granted on the following terms and conditions:</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">17</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z25658d672a2b4741aabeddb9ddafc957">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Within [***], Biogen may provide Ionis with a non-binding, good faith written notice expressing Biogen&#8217;s desire for Ionis to identify a Follow-On Compound with respect to the Collaboration Target that is the subject of such Collaboration
              Program (a &#8220;<font style="font-weight: bold; font-style: italic;">Follow-On Interest Notice</font>&#8221;). If (i) Biogen does not, within such [***] period, provide Ionis with a Follow-On Interest Notice, or (ii) Biogen does timely provide Ionis
              with a Follow-On Interest Notice but the Parties do not agree on a [***] related to such Follow-On Compound by 5:00 pm (Eastern Time) on the [***] following the License Effective Date for such Collaboration Program, then, Ionis may work
              independently or with any of its Affiliates or any Third Party with respect to the discovery, research, development and manufacture of a Follow-On Compound with respect to such Collaboration Target; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that during the ROFN Period, Ionis will not grant any license (or an option to obtain such a license) under any intellectual property owned, controlled or licensed by Ionis to make, use or sell
              any Follow-On Compound (a &#8220;<font style="font-weight: bold; font-style: italic;">Follow-On Agreement</font>&#8221;) with respect to such Collaboration Target <font style="font-style: italic;"><u>unless and until</u></font> Ionis provides a written
              notice to Biogen (a &#8220;<font style="font-weight: bold; font-style: italic;">Follow-On Negotiation Notice</font>&#8221;), which notice identifies [***].&#160; Ionis will not initiate negotiations regarding or enter into such a Follow-On Agreement with any
              Third Party until [***] (each, a &#8220;<font style="font-weight: bold; font-style: italic;">ROFN Termination Event</font>&#8221;).</div>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2fe5e4b398ee4712b5526fc88179e95f">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If Biogen or one of its Affiliates responds within [***] after its receipt of a Follow-On Negotiation Notice indicating that Biogen or one of its Affiliates desires to negotiate with Ionis regarding the proposed Follow-On Agreement, Ionis
              and Biogen or one of its Affiliates will negotiate in good faith with each other until the [***] after the date Ionis provided Biogen the Follow-On Negotiation Notice (or such other period as mutually agreed by the Parties) (the &#8220;<font style="font-weight: bold; font-style: italic;">Negotiation Period</font>&#8221;) regarding a mutually satisfactory Follow-On Agreement (which may take the form of an amendment to this Agreement). During the Negotiation Period, Ionis will make at
              least [***] to Biogen or its Affiliate setting forth all material business and legal terms on which Ionis would be willing to enter into the proposed Follow-On Agreement with Ionis; <font style="font-style: italic;">provided </font>that
              neither Party will have any obligation to enter into any such Follow-On Agreement. If the Negotiation Period expires before Biogen or its Affiliate and Ionis have entered into such a Follow-On Agreement, Ionis will have no further obligation
              to negotiate with Biogen or its Affiliates with respect to such Follow-On Agreement and Ionis will be free to negotiate and enter an agreement with a Third Party with respect to a Follow-On Agreement [***]; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that Ionis will not enter into any such Follow-On Agreement with any Third Party unless the terms and pricing of such Follow-On Agreement, [***] during the Negotiation Period. If, with respect to
              any Follow-On Compound that was the subject of the Follow-On Agreement previously discussed by the Parties, after the end of the Negotiation Period and prior to Ionis entering into a Follow-On Agreement with a Third Party, [***] regarding the
              Follow-On Compound, Ionis&#8217; obligations and Biogen&#8217;s rights under <u>Section 2.1.2(a)</u> and this <u>Section 2.1.2(b)</u> will reset and Ionis will provide Biogen with a new Follow-On Negotiation Notice.</div>
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    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">18</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
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          <td style="width: 72pt;"><br>
          </td>
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          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Any Follow-On Agreement entered into by Ionis with a Third Party in accordance with <u>Section 2.1.2(b)</u> will be a Permitted License to the extent related to the Follow-On Compound.</div>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zef3130fb31914501bec27d5983388d5d">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">Notwithstanding anything to the contrary in this </font><font style="font-size: 10pt;">Agreement<font style="color: rgb(0, 0, 0);">, until [</font>***],<font style="color: rgb(0, 0, 0);">&#160;</font>Ionis <font style="color: rgb(0, 0, 0);">will provide to </font>Biogen <font style="color: rgb(0, 0, 0);">a </font>Follow-On Negotiation Notice for <font style="color: rgb(0, 0, 0);">each [</font>***]






                <font style="color: rgb(0, 0, 0);">pursuant to this </font><font style="color: rgb(0, 0, 0);"><u>Section </u></font><u>2.1.2</u><font style="color: rgb(0, 0, 0);">, </font><font style="font-style: italic; color: rgb(0, 0, 0);">unless</font><font style="color: rgb(0, 0, 0);">&#160;</font>Ionis <font style="color: rgb(0, 0, 0);">enters into a </font>Follow-On Agreement <font style="color: rgb(0, 0, 0);">with a Third </font>Party <font style="color: rgb(0, 0, 0);">pursuant to this </font><font style="color: rgb(0, 0, 0);"><u>Section </u></font><u>2.1.2</u>&#160;<font style="color: rgb(0, 0, 0);">and the terms of such </font>agreement <font style="color: rgb(0, 0, 0);">do not permit </font>Ionis <font style="color: rgb(0, 0, 0);">to grant </font>Biogen <font style="color: rgb(0, 0, 0);">rights with respect to the applicable </font>Follow-On Compound<font style="color: rgb(0, 0, 0);">.</font></font></div>
          </td>
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    <div>&#160;</div>
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        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">2.1.3.</td>
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            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Limitations and Exceptions to Exclusivity Covenants</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zce05246fb7ba475f9f7765efc517df0c">

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          <td style="width: 72pt;"><br>
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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Notwithstanding anything to the contrary in this Agreement, Ionis&#8217; practice of the following will not violate <u>Section 2.1.1</u>:</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z18d2cdfada9349118f0b6f5faac3fa5f">

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          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The discovery, research, development, manufacture or commercialization of Gene-Editing Products or messenger RNA;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7cf4234cc67440208aef09c3a98e73fe">

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          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Any activities pursuant to the Prior Agreements as in effect on the Effective Date;</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9b1bb7c439834feca45c14c1110a5bfa">

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          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(iii)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The granting of, or performance of obligations under, Permitted Licenses;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb9ff26e3c81b49aab4daee2360931bfc">

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          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(iv)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The discovery, research, development, manufacture or commercialization of one or more Pre-Existing Competitive Products in accordance with <u>Section 12.5.1</u>; and</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9a95c7ed97224ffda1b1caaa4243a494">

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          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(v)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The limited continuation of discovery, research, development, manufacture or commercialization of Acquired Competitive Product(s) as permitted under <u>Section 12.5.2(a)</u> and in accordance with <u>Section 12.5.2(a)</u> and <u>Section
                12.6</u>.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd34c028680b349ebb06789812a5e643d">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Notwithstanding anything to the contrary in this Agreement, Biogen&#8217;s practice of the following will not violate <u>Section 2.1.1</u>:</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z285d730ada7a44f3a16a125f05c56cbd">

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          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The discovery, research, development, manufacture or commercialization of Gene-Editing Products or messenger RNA;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z310dd9bb844e49769d106f18432dd4e6">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The discovery, research, development, manufacture or commercialization of one or more Pre-Existing Competitive Products in accordance with <u>Section 12.5.1</u>; and</div>
          </td>
        </tr>

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    <div>&#160;</div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z96f4d2a79b084183bf5248f924dd6d1f">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(iii)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The limited continuation of discovery, research, development, manufacture or commercialization of Acquired Competitive Product(s) as permitted under <u>Section 12.5.2(a)</u> and in accordance with <u>Section 12.5.2(a)</u> and <u>Section
                12.6</u>.</div>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z3622dba96a4846cd8df1626e7439533c">

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          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126728"></a><a name="z_Toc74129699"></a><a name="z_Toc74160252"></a><font style="font-weight: bold;">2.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Effect of Exclusivity on Indications</u></font><font style="font-size: 10pt; color: rgb(0, 0, 0);">.&#160; The </font><font style="font-size: 10pt;">Compounds are
                designed to bind to the RNA that encodes a Collaboration Target in the Field with the intent of treating a neurological or neuromuscular disease. Ionis and Biogen are subject to exclusivity obligations under <u>Section 2.1</u>; <font style="font-style: italic;">however</font>, the Parties acknowledge and agree that each Party (on its own or with a Third Party) may continue to discover, research, develop, manufacture and commercialize products that are designed to bind
                to the RNA that encodes a gene that is <font style="font-style: italic;"><u>not</u></font> a Collaboration Target (or with respect to Ionis, that is <font style="font-style: italic;"><u>not</u></font> a High Interest Target, to the extent
                <u>Section 2.1.1(a)</u> still applies) for any indication, even if such products are designed to treat a neurological or neuromuscular disease.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zea01778e248c48e58f0534c58876f546">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126729"></a><a name="z_Toc74129700"></a><a name="z_Toc74160253"></a><font style="font-weight: bold;">2.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Consequences of Ionis-Discovered High Interest Target Development Candidate</u></font><font style="font-size: 10pt;">.&#160; Ionis may work for itself (but not for
                the benefit of a Third Party) to conduct drug discovery activities to identify a High Interest Target Development Candidate, including drug screening, identification, characterization, optimization, and, subject to <u>Section 1.5.6</u>,
                research collaborations with academic or non-profit institutions.&#160; Ionis will notify the Neurology JSC of any such activities and keep the Neurology JSC reasonably apprised of the status thereof.&#160; If Ionis designates a High Interest Target
                Development Candidate targeting a particular High Interest Target (such target, an &#8220;<font style="font-weight: bold; font-style: italic;">Accelerated Target</font>&#8221;), Ionis may notify Biogen in writing regarding Ionis&#8217; designation of such
                High Interest Target Development Candidate and will provide Biogen the applicable Development Candidate Data Package; <font style="font-style: italic;">provided</font>, <font style="font-style: italic;">however</font>, that unless
                otherwise agreed to by Biogen in writing, Ionis may not provide Biogen more than </font><font style="font-size: 10pt;">[***] in any rolling [***] month period.&#160; Within [***] following Biogen&#8217;s receipt of the applicable Development
                Candidate Data Package, Biogen may (a) if Biogen has not designated all three Collaboration Targets, designate the Accelerated Target as a Collaboration Target, or (b) if Biogen has designated all three Collaboration Targets, substitute-out
                a Collaboration Target in exchange for substituting-in the Accelerated Target as a Collaboration Target (pursuant to the procedures set forth in <u>Section 1.4.2</u>).&#160; If Biogen does not, within such [***] period, designate the
                Accelerated Target as a Collaboration Target pursuant to clause (a) or (b) of this <u>Section 2.3</u>, then, such Accelerated Target will no longer be a High Interest Target and Ionis may work independently or with any of its Affiliates or
                any Third Party with respect to the discovery, research, development, and commercialization of ASOs (or any other compounds) targeting such Accelerated Target.</font></div>
          </td>
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    <div>&#160;</div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 3</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126730"></a><a name="z_Toc74129701"></a><a name="z_Toc74160254"></a>EXCLUSIVE OPTION</div>
    <div>&#160;</div>
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          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126731"></a><a name="z_Toc74129702"></a><a name="z_Toc74160255"></a><font style="font-weight: bold;">3.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Option</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="ze80fb5df61d046b4871e5d9dc107cfdd">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">3.1.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Advance Data Disclosure</u></font><font style="font-size: 10pt;">.&#160; On or about 90 days before the date on which Ionis estimates that the database will be locked
                for the first PoC Trial for a particular Collaboration Program that is being conducted by Ionis (each an &#8220;<font style="font-weight: bold; font-style: italic;">Estimated Lock Date</font>&#8221;), Ionis will provide Biogen with a written notice of
                such Estimated Lock Date. If Biogen provides written notice to Ionis [***] after Biogen&#8217;s receipt of the notice regarding the Estimated Lock Date that Biogen has a good faith intention to exercise the Option for the applicable Collaboration
                Program under <u>Section 3.1.3</u>, then as soon as reasonably practicable after Ionis receives such notice from Biogen, Ionis will provide Biogen with an early preview of the information to be included in the [***] for the applicable
                Collaboration Program to the extent then in Ionis&#8217; possession and not already provided to Biogen, to assist Biogen with its decision of whether to exercise the Option. Within 15 Business Days after Biogen&#8217;s receipt of such data, Biogen will
                provide Ionis with a [***] notice of whether Biogen still intends to exercise the Option for the applicable Collaboration Program; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that
                Biogen&#8217;s failure to do so will not be deemed a breach of this Agreement.</font></div>
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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">3.1.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>PoC Trial Completion Notice</u></font><font style="font-size: 10pt;">.&#160; On a Collaboration Program-by-Collaboration Program basis where Ionis conducts the first
                PoC Trial, Ionis will provide to Biogen or its designated Affiliate (a) a copy of the most recent Investigator&#8217;s Brochure for the applicable Product, (b) written notice from Ionis regarding completion of the first PoC Trial, and (c) the PoC
                Data Package for such Collaboration Program, to the extent not already provided to Biogen under <u>Section 3.1.1</u> above (such notice and package, a &#8220;<font style="font-weight: bold; font-style: italic;">PoC Trial Completion Notice</font>&#8221;)






                promptly, and in any event within [***] days after database lock for the PoC Trial for such Collaboration Program.&#160; Within 15 days of receipt of the PoC Trial Completion Notice, Biogen or an Affiliate will notify Ionis of any omissions or
                deficiencies that Biogen or its Affiliate believes in good faith cause the PoC Trial Completion Notice to be incomplete (&#8220;<font style="font-weight: bold; font-style: italic;">Deficiency Notice</font>&#8221;). Ionis will promptly, and in any event
                within 15 days of receipt of the Deficiency Notice, resubmit a complete PoC Trial Completion Notice to Biogen or its designated Affiliate, including any information required to be included in the PoC Data Package that Biogen identified in
                the Deficiency Notice. If the Parties do not agree as to whether the PoC Trial Completion Notice is complete, the matter will be referred to the Executives for resolution. The Executives will meet promptly and negotiate in good faith to
                resolve the dispute and agree upon a complete PoC Trial Completion Notice.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
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        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref983704"></a><a name="z_Ref51657797"></a><font style="font-weight: bold;">3.1.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Option and Option Deadline</u></font><font style="font-size: 10pt;">.&#160; On a Collaboration Program-by-Collaboration Program basis, Ionis hereby grants to Biogen
                and its Affiliates an exclusive option to obtain the license set forth in <u>Section 4.1.1</u> with respect to such Collaboration Program (each an &#8220;<font style="font-weight: bold; font-style: italic;">Option</font>&#8221;). Each Option will be
                available to Biogen and its Affiliates until 5:00 pm (Eastern Time) on the [***] following Biogen&#8217;s receipt of a complete PoC Trial Completion Notice for the applicable Collaboration Program (the &#8220;<font style="font-weight: bold; font-style: italic;">Option Deadline</font>&#8221;); <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that if Biogen determines that an HSR Filing is required to be made under the HSR Act to exercise the
                Option and notifies Ionis of such determination within [***] after Biogen&#8217;s receipt of the complete PoC Trial Completion Notice, the Parties will promptly file an HSR Filing in accordance with <u>Section 3.1.4</u> and the Option Deadline
                will be extended until 5:00 pm (Eastern Time) on the fifth Business Day after the HSR Clearance Date. If, by the Option Deadline, Biogen or its designated Affiliate (a) notifies Ionis in writing that it wishes to exercise the applicable
                Option, and (b) pays to Ionis the license fee set forth in <u>Section 6.3</u>, Ionis will, and hereby does, grant to Biogen or its designated Affiliate the license set forth in <u>Section 4.1.1</u>. If, by the Option Deadline, Biogen or
                its designated Affiliate has not both (y) provided Ionis a written notice stating that Biogen is exercising its Option, and (z) paid Ionis the license fee in accordance with <u>Section 6.3</u>, then Biogen&#8217;s Option for the applicable
                Collaboration Program will expire and <u>Sections 10.4.2(a)</u>, <u>10.4.2(b)</u>, <u>10.4.2(c)</u> and <u>10.4.2(e)</u> will apply.</font></div>
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    <div>&#160;</div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
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        <tr>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">3.1.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>HSR Compliance</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z6cad92bdb7ae4729bf50c88884e37339">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
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          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>HSR Filing</u></font><font style="font-size: 10pt;">.&#160; If Biogen notifies Ionis pursuant to <u>Section 3.1.3</u> that an HSR Filing is required to exercise an
                Option under this Agreement, then each of Biogen and Ionis will, within five Business Days after such notice from Biogen (or such later time as may be agreed to in writing by the Parties), file with the United States Federal Trade
                Commission (&#8220;<font style="font-weight: bold; font-style: italic;">FTC</font>&#8221;) and the Antitrust Division of the United States Department of Justice (&#8220;<font style="font-weight: bold; font-style: italic;">DOJ</font>&#8221;), any HSR Filing
                required with respect to the transactions contemplated hereby. The Parties will cooperate with one another to the extent necessary in the preparation of any such HSR Filing. Each Party will be responsible for its own costs and expenses
                (other than filing fees, which Biogen will pay) associated with any HSR Filing.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z13e8db38c62d4d70b182de436c668eaa">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>HSR Clearance</u></font><font style="font-size: 10pt;">.&#160; In furtherance of obtaining HSR Clearance for an HSR Filing filed under <u>Section 3.1.4(a)</u>, Ionis
                and Biogen will use their respective commercially reasonable efforts to resolve as promptly as practicable any objections that may be asserted with respect to this Agreement or the transactions contemplated by this Agreement under any
                antitrust, competition or trade regulatory law. In connection with obtaining such HSR Clearance from the FTC, the DOJ or any other governmental authority, Biogen and its Affiliates will not be required to (i) sell, divest (including through
                a license or a reversion of licensed or assigned rights), hold separate, transfer or dispose of any assets, operations, rights, product lines, businesses or interest therein of Biogen or any of its Affiliates (or consent to any of the
                foregoing actions); or (ii) litigate or otherwise formally oppose any determination (whether judicial or administrative in nature) by a governmental authority seeking to impose any of the restrictions referenced in clause (i) above.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zdfba220af41448729cf7f9322ffefe1a">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126732"></a><a name="z_Toc74129703"></a><a name="z_Toc74160256"></a><font style="font-weight: bold;">3.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Restrictions on Ionis&#8217; Right to Grant Diagnostic Rights; Right to Negotiate Diagnostic Rights</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z903ba012a3f34503b04d007ab4f88e29">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">3.2.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>On a Product-by-Product basis, Ionis hereby grants to Biogen and its Affiliates an option (the &#8220;Diagnostic Option&#8221;) to negotiate during the Full Royalty Period the terms of an agreement under which [***]. The Diagnostic Option will be
              available to Biogen and its Affiliates until the expiration of the [***].</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za253acf6d03343b8930c0b9e6e1ae937">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">3.2.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>During the [***], Ionis (a) has the right to [***], and (b) will not [***].</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z0ce9b09e9ff84860aa9a8b922c4b809f">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">3.2.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If, during the [***], Ionis grants any Third Party a [***], then Ionis will promptly notify Biogen of such [***] and will offer Biogen a [***].</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">22</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 4</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126733"></a><a name="z_Toc74129704"></a><a name="z_Toc74160257"></a>LICENSE GRANTS</div>
    <div>&#160;</div>
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          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126734"></a><a name="z_Toc74129705"></a><a name="z_Toc74160258"></a><font style="font-weight: bold;">4.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>License Grants to Biogen</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z3d4002cc2de44e5e99bdbfb6c4bcab90">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2041731"></a><font style="font-weight: bold;">4.1.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Development and Commercialization Licenses</u></font><font style="font-size: 10pt;">.&#160; Subject to the terms and conditions of this Agreement, on a Collaboration
                Program-by-Collaboration Program basis, effective upon the License Effective Date for a particular Collaboration Program in accordance with this Agreement, Ionis grants to Biogen a worldwide, exclusive, royalty-bearing, sublicensable (in
                accordance with <u>Section 4.1.2</u> below) license under the Licensed Technology to research, Develop, Manufacture, have Manufactured (in accordance with <u>Section 4.1.2</u> below), register, market and Commercialize Products under such
                Collaboration Program in the Field.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2336f71329e3463bad76708757313095">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref914189"></a><font style="font-weight: bold;">4.1.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Sublicense Rights; CMO Licenses</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2f6435b21ef64d19b69c714b511cd18e">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement, and on a Collaboration Program-by-Collaboration Program basis, Biogen will have the right to grant sublicenses under the licenses granted under <u>Section 4.1.1</u> above and <u>Section






                4.3.1(b)</u> below:</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc0fdd2f50a974215bfb14cba3931ab0e">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>under the Ionis Core Technology Patents, Ionis Product-Specific Patents and Ionis Know-How, to an Affiliate of Biogen or a Third Party; and</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z62c067f81e4f4cfcba3ea1c5de0961b1">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>under the Ionis Manufacturing and Analytical Patents and Ionis Manufacturing and Analytical Know-How, solely to (A) [***] or (B) [***];</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 108pt; font-size: 12pt;"><font style="font-size: 10pt; font-style: italic;">provided </font><font style="font-size: 10pt;">that each such sublicense will be subject to, and consistent with, the terms and
        conditions of this Agreement. If, within [***] days of first learning of any breach of such sublicense terms, Biogen fails to take any action to enforce the sublicense terms of a sublicense granted pursuant to this <u>Section 4.1.2</u>, which
        failure would cause an adverse effect on Ionis, then Biogen hereby grants Ionis the right to enforce such sublicense terms on Biogen&#8217;s behalf and will cooperate with Ionis (which cooperation will be at Biogen&#8217;s sole expense and will include, Biogen
        joining any action before a court or administrative body filed by Ionis against such Sublicensee if and to the extent necessary for Ionis to have legal standing before such court or administrative body)<font style="font-weight: bold;">&#160;</font>in
        connection with enforcing such terms. Biogen will provide Ionis with a true and complete copy of any sublicense granted pursuant to this <u>Section 4.1.2</u> within [***] days after the execution thereof.</font></div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="ze053144bfe73416ba72fca43feccdf16">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>In connection with Biogen&#8217;s selecting and engaging one or more CMOs to supply Clinical Supplies under <u>Section 4.3.1(b)</u> or after the License Effective Date with respect to a Collaboration Program, or supply API and Finished Drug
              Product for Commercialization, Ionis will, at Biogen&#8217;s option, either (i) grant a license from Ionis to [***] under the [***] to the extent necessary for [***], which Ionis agrees it will grant to [***], or, (ii) permit Biogen to grant a
              sublicense from Biogen to [***].&#160; Each such manufacturing agreement between Biogen and a CMO will contain [***]. Biogen will provide Ionis with a true and complete copy of any manufacturing agreement entered into with a CMO within [***] days
              after the execution thereof.&#160; Notwithstanding the foregoing, if Ionis fails to comply with the terms of this <u>Section 4.1.2(b)</u> and does not cure such failure within 90 days after written notice from Biogen specifying the details of any
              such failure, then Biogen will have the right to [***].</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">23</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbc51530fc8644862b51a209850aa69a6">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Effect of Termination on Sublicenses</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z94c678cda02c4643b652a7402c92d9dd">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If this Agreement terminates for any reason, then any Sublicensee of Biogen will, from the effective date of such termination, automatically become a direct licensee of Ionis with respect to the rights sublicensed to the Sublicensee by
              Biogen; <font style="font-style: italic;">so long as</font> (i) such Sublicensee is not in breach of its sublicense agreement, (ii) such Sublicensee agrees in writing to comply with all of the terms of this Agreement to the extent applicable
              to the rights originally sublicensed to it by Biogen, and (iii) such Sublicensee agrees to pay directly to Ionis such Sublicensee&#8217;s payments under this Agreement to the extent applicable to the rights sublicensed to it by Biogen.&#160; Biogen
              agrees that it will confirm clause (i) of the foregoing in writing at the request and for the benefit of Ionis and if requested, the Sublicensee.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb6f15f3aa826457ca43d7d3c2345650a">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51591714"></a><font style="font-weight: bold;">(ii)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If this Agreement terminates for any reason, then any Sublicensee of Biogen under <u>Section 4.3.1(c)</u> and any Sublicensee of Ionis under <u>Section 4.5.2</u> will, from the effective date of such termination, automatically become a
              direct licensee of the applicable Party with respect to the rights sublicensed to the Sublicensee by the other Party hereunder; <font style="font-style: italic;">so long as </font>(A) such Sublicensee is not in breach of its sublicense
              agreement, (B) such Sublicensee agrees in writing to comply with all of the terms of this Agreement to the extent applicable to the rights originally sublicensed to such Sublicensee, and (C) with respect to Sublicensees of Ionis, such
              Sublicensee agrees to pay directly to Biogen such Sublicensee&#8217;s payments under <u>Section 4.4.2</u> to the extent applicable to the rights sublicensed to it by Ionis.&#160; Each Party agrees that it will confirm clause (A) of this <u>Section
                4.1.2(c)(ii)</u> in writing at the request and for the benefit of the other Party and if requested, the Sublicensee.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z19a31ea5079e418ab91c3ee2ee1b27e4">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.1.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>No Implied Licenses</u></font><font style="font-size: 10pt;">.&#160; All rights in and to the Licensed Technology not expressly licensed to Biogen under this
                Agreement are hereby retained by Ionis or its Affiliates. All rights in and to Biogen Technology not expressly licensed or assigned to Ionis under this Agreement, are hereby retained by Biogen or its Affiliates.&#160; Except as expressly
                provided in this Agreement, no Party will be deemed by estoppel or implication to have granted the other Party any license or other right with respect to any intellectual property.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">24</font></div>
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            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf7128f8437dc4f10a7fe7ec524955d54">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.1.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>License Conditions; Limitations</u></font><font style="font-size: 10pt;">.&#160; Subject to <u>Section 6.8</u>, any license granted under <u>Section 4.1.1</u> and
                the sublicense rights under <u>Section 4.1.2</u> are subject to and limited by (a) any applicable Third Party Obligations, (b) the Prior Agreements, and (c) the Ionis In-License Agreements, in each case to the extent the provisions of such
                obligations or agreements are specifically disclosed to Biogen in writing (or via electronic data room) prior to Biogen&#8217;s exercise of the applicable Option. Ionis will disclose to Biogen any Third Party Obligations Ionis believes apply to
                applicable Products each time Ionis provides Biogen with (x) the [***<u>]</u>; and (z) the [***<u>]</u>, and Biogen will have the right to elect to exclude any Third Party Patent Rights and Know-How to which such Third Party Obligations
                apply by providing Ionis written notice prior to the License Effective Date for a particular Collaboration Program. If, prior to the License Effective Date with respect to a Collaboration Program, Biogen provides Ionis with such a written
                notice to exclude certain Third Party Patent Rights and Know-How, such Third Party Patent Rights and Know-How will not be included in the Licensed Technology licensed with respect to the applicable Products under this Agreement. If Biogen
                does not provide Ionis with such a written notice to exclude such Third Party Patent Rights and Know-How prior to the License Effective Date for such Collaboration Program, then such Third Party Patent Rights and Know-How (and any Third
                Party Obligations to the extent applicable to Products) will be included in the Licensed Technology licensed with respect to the applicable Products under this Agreement.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z632537183988460682f36ab548d75a5e">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.1.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Trademarks for Products</u></font><font style="font-size: 10pt;">.&#160; If Biogen exercises an Option for a Collaboration Program hereunder, to the extent that (a)
                Ionis owns any trademark(s) specific to a Product under such Collaboration Program, which trademark(s) Ionis used prior to the License Effective Date for such Collaboration Program, and (b) Biogen reasonably believes such trademark(s) would
                be necessary or useful for the marketing and sale of the applicable Product, then upon Biogen&#8217;s request and at Biogen&#8217;s sole cost and expense relating to such assignment, Ionis will assign its rights and title to such trademark(s) to Biogen
                or one or more designated Affiliates sufficiently in advance of the First Commercial Sale of the Product to enable Biogen or its Affiliates to offer such Product for sale under such trademark(s).<font style="font-weight: bold;">&#160;</font>Other






                than trademarks owned by Ionis prior to such License Effective Date, Biogen or its designated Affiliate will be solely responsible for developing, selecting, searching, registering and maintaining, and, subject to <u>Section 10.4</u>, will
                be the exclusive owner of, all trademarks, trade dress, logos, slogans, designs, copyrights and domain names used on or in connection with Products.</font></div>
          </td>
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    <div>&#160;</div>
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        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126735"></a><a name="z_Toc74129706"></a><a name="z_Toc74160259"></a><font style="font-weight: bold;">4.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Assignment of Ionis Product-Specific Patents; Grant Back to Ionis</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z1ccfda3bc09c4fc8add3774ddb4d1191">

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          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.2.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>After Biogen has obtained the license for a particular Collaboration Program under <u>Section 4.1.1</u> and following review and consideration by the Joint Patent Committee, Ionis will assign to Biogen or one or more of its designated
              Affiliates, Ionis&#8217; ownership interest in (a) all Ionis Product-Specific Patents related to such Collaboration Program in the Field that are owned by Ionis (whether solely owned or jointly owned with one or more Third Parties), and (b) any
              Jointly-Owned Program Patents Covering Products related to such Collaboration Program, and thereafter, subject to <u>Section 7.2.4</u>, Ionis will have no further right to control any aspect of the Prosecution and Maintenance of such Ionis
              Product-Specific Patents and such Jointly-Owned Program Patents. The assignment of Patent Rights assigned in this <u>Section 4.2.1</u> will occur within [***] days of Biogen obtaining the applicable license under <u>Section 4.1.1</u>.</div>
          </td>
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    <div>&#160;</div>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">25</font></div>
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            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd75e6027fca5456e9784e0b8baa0ac6d">

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          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement (including Ionis&#8217; exclusivity covenants under <u>Section 2.1.1</u>), Biogen grants to Ionis a worldwide, sublicensable license under any Ionis Product-Specific Patents and
              Jointly-Owned Program Patents assigned to Biogen under <u>Section 4.2.1</u> [***], (b) to conduct activities under other Collaboration Program Research Plans and (c) to [***] to the extent permitted by this Agreement.</div>
          </td>
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    <div>&#160;</div>
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        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126736"></a><a name="z_Toc74129707"></a><a name="z_Toc74160260"></a><font style="font-weight: bold;">4.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Enabling Licenses</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z1b300055859544f4bfbbc0f7e0c4456e">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref969645"></a><font style="font-weight: bold;">4.3.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Licenses During the Option Period</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z26beb2eeddef425abe265724f20c6736">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement, Ionis hereby grants Biogen a worldwide, non-exclusive, sublicensable (but only as permitted in <u>Section 4.3.1(c)</u> below), royalty-free license under the Ionis Manufacturing and
              Analytical Know-How and Ionis Manufacturing and Analytical Patents solely to conduct Manufacturing and drug substance process and formulation development activities with respect to any Compound or Product under any Collaboration Program
              during the Option Period for such Collaboration Program; <font style="font-style: italic;">provided</font> that the grant of rights pursuant to this <u>Section 4.3.1(a)</u> shall not include the right to Manufacture any Compound or Product
              for Commercialization purposes.</div>
          </td>
        </tr>

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    <div>&#160;</div>
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        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement (including Biogen&#8217;s exclusivity covenants under <u>Section 2.1.1</u>), [***] for Biogen to conduct (i) Manufacturing of Compounds or Products under any Collaboration Program or (ii)
              any Biogen Activities that are Development activities with respect to any Collaboration Program in accordance with this Agreement, in each case ((i) and (ii) during the Option Period), Ionis hereby grants Biogen a worldwide, non-exclusive,
              sublicensable (but only as permitted in <u>Section 4.1.2</u> above), royalty-free license under the Licensed Technology. Biogen will [***] arising under any Third Party agreement as a result of granting Biogen the license under this <u>Section






                4.3.1(b)</u> within [***] days after Biogen&#8217;s receipt of the applicable invoice. For clarity, the grant of rights pursuant to this <u>Section 4.3.1(b)</u> shall not include the right to Commercialize any such Product or to Manufacture any
              such Product for Commercialization.</div>
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    <div>&#160;</div>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">26</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zac0fde10473b4f138c612bdac0674ec7">

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          <td style="width: 72pt;"><br>
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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Right to Sublicense</u></font><font style="font-size: 10pt;">.&#160; Biogen will have the right to grant sublicenses under the license granted under <u>Section






                  4.3.1(a)</u> above (i) in the case of a sublicense of Biogen&#8217;s right to conduct Manufacturing of Compounds or Products, other than any sublicense to conduct manufacturing in support of drug substance process and formulation development
                activities, solely to (A) [***] or (B) [***] and (ii) in the case of a sublicense of Biogen&#8217;s right to conduct drug substance process and formulation development activities, including manufacturing in support thereof, to any [***].&#160; If,
                within [***] days after first learning of any breach of such sublicense terms by any such Sublicensee, Biogen fails to take any action to enforce the sublicense terms of a sublicense granted pursuant to this <u>Section 4.3.1(c)</u>, which
                failure would cause an adverse effect on Ionis, then Biogen hereby grants Ionis the right to enforce such sublicense terms on Biogen&#8217;s behalf and will cooperate with Ionis (which cooperation will be at Biogen&#8217;s sole expense and will include
                Biogen joining any action before a court or administrative body filed by Ionis against such Sublicensee if and to the extent necessary to have legal standing before such court or administrative body) in connection with enforcing such
                terms.&#160; Biogen will provide Ionis with a true and complete copy of any sublicense granted to a Third Party pursuant to this <u>Section 4.3.1(c)</u> within [***] days after the execution thereof.&#160; For the avoidance of doubt, <u>Section
                  4.1.2(c)(ii)</u> shall apply to sublicenses granted under this <u>Section 4.3.1(c)</u>.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc7f6e0e03fc342c6af6681f3f16ef218">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.3.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Enabling Licenses to Biogen</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za7ac7834db1c41e3b116f5662021f272">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref969720"></a><font style="font-weight: bold;">(a)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement (including Biogen&#8217;s exclusivity covenants under <u>Section 2.1.1</u>), Ionis hereby grants Biogen an irrevocable, perpetual, worldwide, non-exclusive, sublicensable (subject to the
              restrictions set forth in <u>Section 4.3.2(c)</u>) license under any Ionis Program Technology Controlled by Ionis or its Affiliates at any time during the Agreement Term, to research, develop, manufacture, have manufactured and commercialize
              (i) a product that is being developed or commercialized by Biogen, its Affiliates or its Sublicensee under any Ionis/Biogen Additional Agreement or this Agreement, (ii) products that do not include an Oligonucleotide as an active
              pharmaceutical ingredient, and (iii) Gene-Editing Products. The licenses in clause (ii) and clause (iii) of this <u>Section 4.3.2(a)</u> and in <u>Section 4.3.2(b)</u> are royalty-free; <font style="font-style: italic;">except </font>that
              if a product that is not a Product being sold by Biogen, its Affiliates or Sublicensees is Covered by a Target Related Ionis Program Claim in a country, then on a country-by-country basis Biogen will pay to Ionis a royalty equal to [***]% of
              Net Sales of such product sold by Biogen, its Affiliates or Sublicensees so long as such product is Covered by such Target Related Ionis Program Claim in such country. A &#8220;<font style="font-weight: bold; font-style: italic;">Target Related
                Ionis Program Claim</font>&#8221; means a Valid Claim that (A) is within an Ionis Program Patent that is solely owned by Ionis, (B) Covers a product being sold by Biogen, its Affiliates or Sublicensee and (C) claims a gene target, or a method of
              modulating such gene target to achieve a prophylactic or therapeutic effect/benefit.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zfa3eec9ed8ae4b68bdc9022d010d985b">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref969715"></a><font style="font-weight: bold;">(b)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement (including Biogen&#8217;s exclusivity covenants under <u>Section 2.1.1</u>), Ionis hereby grants Biogen an irrevocable, perpetual, worldwide, non-exclusive, sublicensable (subject to the
              restrictions set forth in <u>Section 4.3.2(c)</u>) license under any Ionis Program Know-How and any Enabled Core Program Patents, in each case, Controlled by Ionis or its Affiliates at any time during the Agreement Term, to research,
              develop, manufacture, have manufactured and commercialize any product, including products that include an Oligonucleotide as an active pharmaceutical ingredient.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">27</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z07acafa18c594fa8a25bfbc9e466d4bf">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref969699"></a><font style="font-weight: bold;">(c)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Biogen may share any raw data included in the Ionis Program Know-How licensed to Biogen under <u>Sections 4.3.2(a)</u> and <u>4.3.2(b)</u> for use in connection with the performance of its obligations or exercise of its rights under this
              Agreement or any Ionis/Biogen Additional Agreement, and Biogen may share the conclusions drawn from or based on the review of such raw data with any Third Party. Other than in accordance with the foregoing sentence, Biogen shall not share
              with any Third Party that is not an academic or non-profit institution or a contractor acting on Biogen&#8217;s behalf any raw data included in such Ionis Program Know-How or any tangible embodiments thereof to the extent such raw data and tangible
              embodiments constitute Confidential Information of Ionis.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
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        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51654848"></a><font style="font-weight: bold;">4.3.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Enabling Licenses to Ionis</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zfaaaf8c96721404987d40122c0a9d03e">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref969769"></a><font style="font-weight: bold;">(a)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement (including Ionis&#8217; exclusivity covenants under <u>Section 2.1.1</u>), Biogen hereby grants Ionis an irrevocable, perpetual, worldwide, non-exclusive, sublicensable (subject to the
              restrictions set forth in <u>Section 4.3.3(c)</u>) license under any Biogen Program Technology Controlled by Biogen or its Affiliates at any time during the Agreement Term other than any Biogen Results licensed to Ionis under <u>Section
                4.4.1</u>, to research, develop, manufacture, have manufactured and commercialize (a) products that include an Oligonucleotide as an active pharmaceutical ingredient (other than products that include an Oligonucleotide that is designed to
              bind to the RNA that encodes the same target as a product that is being developed or commercialized by Biogen, its Affiliates or Sublicensee pursuant to an Option or exclusive license granted from Ionis under this Agreement or any
              Ionis/Biogen Additional Agreement) and (b) Gene-Editing Products. The licenses set forth in this <u>Section 4.3.3(a)</u> and in <u>Section 4.3.3(b)</u> are royalty-free; <font style="font-style: italic;">except</font> that if a product
              that is not a Discontinued Product being sold by Ionis, its Affiliates or Sublicensee is Covered by a Target Related Biogen Program Claim in a country, then on a country-by-country basis Ionis will pay to Biogen a royalty equal to [***]% of
              net sales of such product sold by Ionis, its Affiliates or Sublicensees, for so long as such product is Covered by such Target Related Biogen Program Claim in such country. For the purpose of the foregoing royalty calculation, &#8220;net sales&#8221;
              will be calculated [***]. The provisions of <u>Sections 6.9</u>, <u>6.10</u>, <u>6.11</u> and <u>6.12</u> shall apply, <font style="font-style: italic;">mutatis mutandis</font>, to any royalty payments by Ionis to Biogen under this <u>Section






                4.3.3(a)</u>. A &#8220;<font style="font-weight: bold; font-style: italic;">Target Related Biogen Program Claim</font>&#8221; means a Valid Claim that (i) is within a Biogen Program Patent that is solely owned by Biogen, (ii) Covers a product being
              sold by Ionis, its Affiliates or Sublicensee and (iii) claims a gene target, or a method of modulating such gene target to achieve a prophylactic or therapeutic effect/benefit.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">28</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z50f54f49571b42439ab598aa238726da">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref969774"></a><font style="font-weight: bold;">(b)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement (including Ionis&#8217; exclusivity covenants under <u>Section 2.1.1</u>), Biogen hereby grants Ionis an irrevocable, perpetual, worldwide, non-exclusive, sublicensable (subject to the
              restrictions set forth in <u>Section 4.3.3(c)</u>) license under any Biogen Program Know-How and any Enabled Core Program Patents, in each case, Controlled by Biogen or its Affiliates at any time during the Agreement Term, to research,
              develop, manufacture, have manufactured and commercialize any product, including products that do not include an Oligonucleotide as an active pharmaceutical ingredient.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8cbfdec62175427882f7907467621bc7">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref969757"></a><font style="font-weight: bold;">(c)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis may share any raw data included in the Biogen Program Know-How licensed to Ionis under <u>Sections 4.3.3(a)</u> and <u>4.3.3(b)</u> for use in the performance of its obligations or exercise of its rights under this Agreement or any
              Ionis/Biogen Additional Agreement, and Ionis may share the conclusions drawn from or based on the review of such raw data with any Third Party. Other than in accordance with the foregoing sentence, Ionis shall not share with any Third Party
              that is not an academic or non-profit institution or a contractor acting on Biogen&#8217;s behalf any raw data included in such Biogen Program Know-How or any tangible embodiments thereof to the extent such raw data and tangible embodiments
              constitute Confidential Information of Biogen.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf9d19ff00ab6439b9a765e5959aef376">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126737"></a><a name="z_Toc74129708"></a><a name="z_Toc74160261"></a><a name="z_Ref969874"></a><font style="font-weight: bold;">4.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Licenses to Ionis for Biogen Results</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb6ffa5203d6c47d2874de687fddb2009">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51654919"></a><font style="font-weight: bold;">4.4.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms and conditions of this Agreement, Biogen hereby grants Ionis an irrevocable, worldwide, non-exclusive, sublicensable license under the Biogen Results Controlled by Biogen or its Affiliate at any time during the
              Agreement Term, to research, develop, make, have made, import, export, use and sell <a name="z_cp_text_1_176"></a>(a) products that include an Oligonucleotide as an active pharmaceutical ingredient (other than products that include an
              Oligonucleotide that is designed to bind to the RNA that encodes the same target as a product that is being developed or commercialized by the Parties pursuant to an Option or exclusive license granted from Ionis under this Agreement or the
              Ionis/Biogen Additional Agreements)<a name="z_cp_text_1_177"></a> and (b) Gene-Editing Products.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4408c65fbf7f4c28a7a46efe0ae5ff5f">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126738"></a><font style="font-weight: bold;">4.4.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The license granted in Section 4.4.1 shall be [***] with respect to any [***].&#160; Such license will be [***] with respect to any [***] as follows: on a country-by-country, product-by-product and Biogen Manufacturing Program Patent-by-Biogen
              Manufacturing Program Patent basis, Ionis will pay to Biogen [***].&#160; If one or more Biogen Manufacturing Program Patents expires, is invalidated or otherwise ceases to Cover a product bearing royalties as set forth above, the applicable
              royalty rate under this Section 4.4.2 shall be recalculated to reflect the number of Biogen Manufacturing Program Patents then-Covering such product.&#160; For the purpose of the foregoing royalty calculation, [***] will be calculated as follows:&#160;
              [***].&#160; If Ionis grants a sublicense under this Section 4.4 to an entity that is an Ionis Affiliate at the time Ionis grants such sublicense, such applicable sublicense will [***].&#160; The provisions of Section 6.9, Section 6.10, Section 6.11
              and Section 6.12 shall apply, mutatis mutandis, to any royalty payments by Ionis to Biogen under this Section 4.4.2.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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      <div style="page-break-after:always;" id="DSPFPageBreak">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z3a04c04312364c72962ce25a3c3a675f">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74129709"></a><a name="z_Toc74160262"></a><a name="z_Toc74126739"></a><font style="font-weight: bold;">4.5.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt;"><u>Right to Obtain Direct License from Biogen to Ionis Partner; Sublicensees of Ionis</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zeffdbafa1f2f4b71a0cea48cfdf70c3f">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.5.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If requested by Ionis, Biogen shall grant a direct, [***] license under the Biogen Results to [***] on the same terms as set forth in Section 4.4 with respect to sublicenses of Ionis.&#160; Biogen shall endeavor in good faith to grant such
              license within [***] days of any such request by Ionis.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z35a5b6191a624e6da3b69a79947f7c7d">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126740"></a><font style="font-weight: bold;">4.5.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will have the right to grant sublicenses under the licenses granted under Section 4.4, provided that each such sublicense will be subject to, and consistent with, the terms and conditions of this Agreement.&#160; If, within [***] days
              after first learning of any breach of such sublicense terms, Ionis fails to take any action to enforce the sublicense terms of a sublicense granted pursuant to this Section 4.5.2, which failure would cause an adverse effect on Biogen, Ionis
              hereby grants Biogen the right to enforce such sublicense terms on Ionis&#8217; behalf and will cooperate with Biogen (which cooperation will be at Ionis&#8217; sole expense and will include, Ionis joining any action before a court or administrative body
              filed by Biogen against such Sublicensee if and to the extent necessary for Biogen to have legal standing before such court or administrative body) in connection with enforcing such terms.&#160; Ionis will provide Biogen with a true and complete
              copy of any sublicense granted pursuant to this Section 4.5.2 within [***] days after the execution thereof.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z0e6dd1abb09b44899b68d8133635a6dc">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126741"></a><a name="z_Toc74129710"></a><a name="z_Toc74160263"></a><font style="font-weight: bold;">4.6.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ownership of and Assistance with Regulatory Filings</u></font><font style="font-size: 10pt;">.&#160; If requested by Biogen, Ionis&#8217; and Biogen&#8217;s regulatory teams will
                meet and begin to prepare a plan, which plan will be complete no later than [***] prior to such anticipated filing date, for drafting and reviewing the sections of the NDA and MAA for the applicable Product (including establishing
                responsibilities for drafting and reviewing common technical document (&#8220;<font style="font-weight: bold; font-style: italic;">CTD</font>&#8221;) modules, authorship, plan activity timelines and associated costs and expenses) to ensure a smooth
                transition to Biogen, accelerate CTD completion and facilitate rapid NDA and MAA filing. The Parties will act in good faith and mutually agree upon each such plan; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that after exercising an Option for the applicable Collaboration Program, Biogen will have final decision-making authority with respect to the [***]. Once such plan is complete, each Party will use Commercially
                Reasonable Efforts to execute their respective tasks and responsibilities under such plan in the time frames set forth in such plan. After the License Effective Date for a particular Collaboration Program, if Biogen requests, Ionis will
                assist Biogen in preparing regulatory filings for the Product, under terms negotiated in good faith between Ionis and Biogen, including payment for Ionis&#8217; time at Ionis&#8217; then applicable FTE Rate plus any reasonable out of pocket expenses
                incurred by Ionis in providing such assistance.</font></div>
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    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">30</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2c456746200e470fbd727450131b67db">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126742"></a><a name="z_Toc74129711"></a><a name="z_Toc74160264"></a><font style="font-weight: bold;">4.7.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Subcontracting</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zdd44cd795bf14ad0a659f1338a6b6ba4">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.7.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Subject to the terms of this <u>Section 4.7</u>, each Party will have the right to engage Third Party subcontractors to perform certain of its obligations under this Agreement. Any subcontractor to be engaged by a Party to perform a
              Party&#8217;s obligations set forth in the Agreement will meet the qualifications typically required by such Party for the performance of work similar in scope and complexity to the subcontracted activity and will enter into such Party&#8217;s standard
              nondisclosure agreement consistent with such Party&#8217;s standard practices. Any Party engaging a subcontractor hereunder will remain responsible and obligated for such activities and will not grant rights to such subcontractor that interfere
              with the rights of the other Party under this Agreement.&#160; Each Party will be responsible for any income or non-income taxes that arise as a result of such Party&#8217;s use of any Third Party subcontractors hereunder, including payroll, income,
              withholding (including from subsequent payments)<a name="z_cp_text_1_178"></a> sales and use, VAT, customs, duties excise or property taxes, and such taxes will not be reimbursable expenditures.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf7cd3cb2265e4c1ab5aaee93d8c4ddd0">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.7.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis agrees that, where Biogen wishes to (sub)contract with a Third Party with respect to any of the rights granted under <u>Section 4.3.1(a)</u>, Ionis shall, within [***] days of any request by Biogen, provide Biogen with a letter of
              authorization as necessary for Biogen to be able to contract with such Third Party in accordance with the terms of this Agreement.&#160; Biogen will ensure that any Third Party (sub)contractors Biogen uses to conduct the process development or
              manufacturing activities contemplated by <u>Section 4.3.1(a)</u> will be obligated to assign to Biogen all right, title and interest in and to any inventions developed by such (sub)contractors in the performance of such activities.&#160; <a name="z_cp_text_1_180"></a>&#160; Biogen will not enter into any new agreement or other obligation with any Third Party, or amend an existing agreement with a Third Party, in each case that restricts, limits, diminishes or encumbers the rights
              granted to Ionis under the Manufacturing Process Development Terms.&#160; In addition, after the Amendment Date, Biogen will use reasonable efforts to include, in any agreement with a (sub)contractor that has substantial material obligations
              related to the Development, Manufacture or Commercialization of a Product, provisions requiring that, in the event the applicable Option with respect to a Collaboration Program of which such Products are the subject is terminated, expires
              unexercised or this Agreement is terminated, such (sub)contractor would enter into an agreement with Ionis with respect to such Product that is substantially similar to such (sub)contractor&#8217;s agreement with Biogen and would reasonably
              cooperate with Ionis to facilitate the transition of such Product to Ionis following such termination or expiration of such Option, including the transfer to Ionis of data and information in such (sub)contractor&#8217;s possession related to the
              Product.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zec8a4c193192487ea36357ec6dcfc2f4">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126743"></a><a name="z_Toc74129712"></a><a name="z_Toc74160265"></a><font style="font-weight: bold;">4.8.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Technology Transfer after the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; On a Collaboration Program-by-Collaboration Program basis, Ionis
                will promptly, but no later than [***] days after the License Effective Date for a Collaboration Program hereunder, deliver to Biogen or one or more designated Affiliates:</font></div>
          </td>
        </tr>

    </table>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">31</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z31841d3855c44c3d82aa5cbbfbb529b6">

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          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref959725"></a><font style="font-weight: bold;">4.8.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis Know-How</u></font><font style="font-size: 10pt;">.&#160; All Ionis Know-How in Ionis&#8217; possession that has not previously been provided hereunder, for use
                solely in accordance with the licenses granted under <u>Section 4.1.1</u> and <u>Section 10.4.1(b)</u>, and Ionis will and does hereby assign to Biogen all of Ionis&#8217; right, title and interest in and to the IND for the applicable
                Development Candidate, together with all Regulatory Materials (including drafts) that relate to the applicable Development Candidate and any orphan drug designations with respect to such Development Candidate, to the extent applicable; <font style="font-style: italic;">provided that</font>, (x) notwithstanding the foregoing, and subject to the provisions of <u>Section 2.1</u>, the Parties acknowledge that Ionis shall be permitted to use excerpts or portions of any such
                assigned Regulatory Materials in any other regulatory submissions, notifications, registrations, approvals and/or other filings and correspondence made to or with a Regulatory Authority in any country or jurisdiction related to products
                other than the Development Candidate, <font style="font-style: italic;">provided, further that </font>such excerpts or portions shall not include (i) any non-public data or information, in each case, related solely to the applicable
                Development Candidate, or (ii) any Confidential Information of Biogen, and (y) for clarity, such assignment of Ionis&#8217; right, title and interest in and to such Regulatory Materials shall not include the assignment of any Know-How (including
                any data) contained therein. If Ionis intends to use any excerpt or portion of any such assigned Regulatory Materials in accordance with clause (x) of the preceding sentence that are not in the public domain and do not relate to Ionis&#8217;
                antisense oligonucleotide chemistry platform, Ionis shall, at least [***] days in advance of the anticipated submission of such excerpt or portion to a Regulatory Authority, notify Biogen of such intent and provide to Biogen a copy of such
                proposed excerpt or portion for review and comment. The Parties shall discuss in good faith any comments of Biogen with respect to such proposed excerpt or portion prior to submission thereof. To assist with the transfer of such Ionis
                Know-How, Ionis will make its personnel reasonably available to Biogen during normal business hours for up to [***] ([***]) of Ionis&#8217; time for each Collaboration Program to transfer such Ionis Know-How under this <u>Section 4.8.1</u>.
                Thereafter, if requested by Biogen, Ionis will provide Biogen with a reasonable level of assistance in connection with such transfer, which Biogen will reimburse Ionis for its time incurred in providing such assistance at the
                then-applicable Ionis FTE Rate, plus any reasonable out-of-pocket expenses incurred by Ionis in providing such assistance.</font></div>
          </td>
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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zea5f8c594b374da48516ee3ece24a4c5">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.8.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis Manufacturing and Analytical Know-How</u></font><font style="font-size: 10pt;">.&#160; Solely for use by Biogen, its Affiliates or a Third Party acting on
                Biogen&#8217;s behalf to Manufacture API in Biogen&#8217;s own or an Affiliate&#8217;s manufacturing facility, all Ionis Manufacturing and Analytical Know-How in Ionis&#8217; Control relating to applicable Products, that is necessary for the exercise by Biogen,
                its Affiliates or a Third Party of the Manufacturing rights granted under <u>Section 4.1.1</u>. Upon Biogen&#8217;s request, subject to <u>Section 4.1.2</u>, Ionis will provide up to [***] for [***] ([***]) of its time for each Collaboration
                Program to transfer such Ionis Manufacturing and Analytical Know-How under this <u>Section 4.8.2</u> to any Third Party Manufacturing API, Clinical Supplies or Finished Drug Product on Biogen&#8217;s behalf solely to Manufacture API, Clinical
                Supplies or Finished Drug Product in accordance with the terms of this Agreement. Thereafter, if requested by Biogen, Ionis will provide Biogen with a reasonable level of assistance in connection with such transfer, for which assistance
                Biogen will reimburse Ionis for its time incurred in providing such assistance at the then-applicable Ionis FTE Rate, plus any reasonable out-of-pocket expenses incurred by Ionis in providing such assistance.</font></div>
          </td>
        </tr>

    </table>
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    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">32</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2ce1c1db49f8480f9b46e81bb68a71a2">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.8.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>API and Product</u></font><font style="font-size: 10pt;">.&#160; Upon Biogen&#8217;s written request, Ionis will sell to Biogen any bulk API, Clinical Supplies and Finished
                Drug Product, and any intermediates, impurity markers and reference standards relating to a Product in Ionis&#8217; possession at the time of the License Effective Date for the applicable Collaboration Program, at a price equal to [***].</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z98d28fe40f9e475fbd0ff18365b63bf3">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref959882"></a><font style="font-weight: bold;">4.8.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Trial Master File</u></font><font style="font-size: 10pt;">.&#160; Upon Biogen&#8217;s written request, Ionis will provide to Biogen or its designated Affiliate a copy of
                Ionis&#8217; trial master file for such Collaboration Program (such trial master file, the &#8220;<font style="font-weight: bold; font-style: italic;">Trial Master File</font>&#8221;) promptly, and in any event within [***] days after Ionis&#8217; receipt of such
                written request. Within [***] days after receipt of the Trial Master File, Biogen or an Affiliate may notify Ionis of any omissions or deficiencies that Biogen or its Affiliate believes in good faith cause the Trial Master File to be
                incomplete (such notice, a &#8220;<font style="font-weight: bold; font-style: italic;">Trial Master File Deficiency Notice</font>&#8221;). Ionis will promptly, and in any event within [***] days after receipt of the Trial Master File Deficiency Notice,
                resubmit a complete Trial Master File to Biogen or its designated Affiliate, including any information required to be included in a Trial Master File that Biogen requests be included in the Trial Master File. If the Parties do not agree as
                to whether the Trial Master File is complete, the matter will be referred to the Executives for resolution. The Executives will meet promptly and negotiate in good faith to resolve the dispute and agree upon a complete Trial Master File. If
                Ionis is the Commercializing Party of a Discontinued Product, this <u>Section 4.8.4</u> will apply to such Discontinued Product <font style="font-style: italic;">mutatis mutandis</font> such that Biogen will transfer to Ionis Biogen&#8217;s
                trial master file for such Discontinued Product.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7401e6e11c8340ceaa6c20692c5c8e10">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">4.8.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Results</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zeaba1ebae90a4af59aad115e0299dbc2">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Each Party shall share with the other Party on an Annual basis (preferably at in-person meetings) the results of such Party&#8217;s manufacturing process development activities, including all data, the identity and location of vendors,
              information and results received from vendors, and planned additional work, (i) in the case of Biogen, to the extent arising under the Manufacturing Process Development Terms (all Know-How and Patent Rights within the foregoing, the &#8220;<font style="font-weight: bold; font-style: italic;">Biogen Results</font>&#8221;) and (ii) in the case of Ionis, to the extent arising under or otherwise subject to a disclosure obligation of Ionis under this Agreement (all Know-How and Patent Rights
              within the foregoing, the &#8220;<font style="font-weight: bold; font-style: italic;">Ionis Results</font>&#8221; and, collectively with the Biogen Results, the &#8220;<font style="font-weight: bold; font-style: italic;">Results</font>&#8221;).&#160; All intellectual
              property matters with respect to the Results, including any Patent Rights therein, will be governed by the intellectual property provisions of this Agreement, and the Know-How and Patent Rights included in the Ionis Results shall constitute
              Ionis Manufacturing and Analytical Know-How and Ionis Manufacturing and Analytical Patent Rights, respectively, under this Agreement.&#160; If requested by either Party, Biogen and Ionis will establish a manufacturing committee to facilitate the
              exchange of Results between the Parties.&#160; For clarity, Biogen shall have the right, in its sole discretion, to determine whether to seek patent protection for any Biogen Results that are not jointly owned with Ionis, and Biogen shall control
              and be responsible for all aspects of the Prosecution and Maintenance of any Patent Right within such Biogen Results (each, a &#8220;<font style="font-weight: bold; font-style: italic;">Biogen Manufacturing Program Patent</font>&#8221;) in accordance
              with <u>Section 7.2.2(c)</u> of this Agreement.&#160; Biogen shall notify Ionis within [***] days if Biogen files a patent application Controlled by Biogen or its Affiliates that claims any Biogen Results and shall provide Ionis with a copy of
              such patent application.&#160; Ionis will have no obligation to incorporate any Biogen Results into Ionis&#8217; manufacturing process.</div>
          </td>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7d999bf30fa24b57af03ab3548458cdf">

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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>For clarity, the Manufacturing Process Development Terms, and not the enabling licenses set forth in <u>Section 4.3.2</u> and <u>Section 4.3.3</u>, shall govern with respect to all Results.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 5</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126744"></a><a name="z_Toc74129713"></a><a name="z_Toc74160266"></a>DEVELOPMENT, MANUFACTURING AND COMMERCIALIZATION</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb32b17a8384c467bbc2ba1f5abdd2eb9">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126745"></a><a name="z_Toc74129714"></a><a name="z_Toc74160267"></a><font style="font-weight: bold;">5.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen Diligence</u></font><font style="font-size: 10pt;">.&#160; Following the License Effective Date with respect to a Collaboration Program, Biogen will be solely
                responsible for all Development, Manufacturing and Commercialization activities, and for all costs and expenses associated therewith, with respect to the Development, Manufacture and Commercialization of the applicable Products; and Biogen
                will use Commercially Reasonable Efforts to Develop, Manufacture and Commercialize at least one Product from each Collaboration Program for which an Option has been exercised.&#160; If Biogen exercises an Option for a Product involving a
                Collaboration Target added in accordance with <u>Section 1.3.2</u> that is associated with [***], Biogen will use Commercially Reasonable Efforts to Develop such Product for use in a [***].</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf4c6f41f97324f2a8eae46147e25c266">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">5.1.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Specific Performance Milestone Events</u></font><font style="font-size: 10pt;">.&#160; Without limiting any of the foregoing, following the License Effective Date for
                a Collaboration Program, Biogen will use Commercially Reasonable Efforts to achieve the specific performance milestone events set forth in <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 5.1.1</u>, as such schedule may be
                updated from time to time in accordance with <u>Section 1.5.2(a)</u> (&#8220;<font style="font-weight: bold; font-style: italic;">Specific Performance Milestone Events</font>&#8221;) for a Product under such Collaboration Program on the timeline set
                forth in <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 5.1.1</u>; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, [***].</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z46fa72a971c949cfaada2824aa45ef51">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref962931"></a><font style="font-weight: bold;">5.1.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Integrated Development Plan</u></font><font style="font-size: 10pt;">.&#160; On a Product-by-Product basis, Biogen will prepare a Development and global integrated
                Product plan outlining key aspects of the Development of each Product through Approval as well as key aspects of worldwide regulatory strategy, market launch, and Commercialization, including Product sales and forecasts (each, an &#8220;<font style="font-weight: bold; font-style: italic;">Integrated Development Plan</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">IDP</font>&#8221;).&#160; Biogen will prepare the IDP no later than [***] after the License Effective Date
                for a Collaboration Program, and the IDP will contain information consistent <a name="z_cp_text_1_184"></a>in scope and content with the information Biogen&#8217;s senior management uses for internal decision-making for such Product. Once Biogen
                has prepared such plans, Biogen will update the IDP consistent with Biogen&#8217;s standard practice and provide such updates to Ionis [***]. Biogen and Ionis will meet [***] basis to discuss the draft of the IDP and Biogen will consider, in good
                faith, any proposals and comments made by Ionis for incorporation in the final IDP.&#160; Notwithstanding the foregoing, Biogen&#8217;s obligations to provide Ionis with information or reports with respect to a Product under this <u>Section 5.1.2</u>
                will terminate if [***].</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zaefd357917d243bfab9c81ec32564d90">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">5.1.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Investigator&#8217;s Brochure</u></font><font style="font-size: 10pt;">.&#160; After the License Effective Date with respect to a Collaboration Program, Ionis will provide
                to Biogen an up-to-date version of the Investigator&#8217;s Brochure for the applicable Product. After the License Effective Date with respect to a Collaboration Program, Biogen will keep Ionis reasonably informed with respect to the status,
                activities and progress of Development of Products by providing updated versions of the Investigator&#8217;s Brochure for each Product to Ionis [***] and when Development of such Product results in any substantive change to the safety or risk to
                the Product. Biogen&#8217;s obligations under this <u>Section 5.1.3</u> will terminate with respect to a Product if [***].</font></div>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9ab642ae202e4d8488b3bd02859211f8">

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          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref983797"></a><font style="font-weight: bold;">5.1.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Regulatory Matters</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z76727ab25e0d407da43d65e94ff44ab8">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref364713546"></a><a name="z_Ref983649"></a><font style="font-weight: bold;">(a)</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>IND-Holder</u></font><font style="font-size: 10pt;">. Subject to this <u>Section 5.1.4</u>, Ionis will be the IND-holder and will be responsible for all
                communications with Regulatory Authorities regarding the Collaboration Programs prior to the applicable License Effective Date.&#160; Biogen will be the IND-holder and holder of any orphan drug designation<a name="z_cp_text_1_190"></a> after the
                applicable License Effective Date for each Collaboration Program in accordance with <u>Section 3.1.3</u>, and, except as otherwise provided in this <u>Section 5.1.4</u>, shall thereafter have sole decision-making authority with respect to
                the matters set forth in this <u>Section 5.1.4</u>.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zacce3fd9295945c6a3a95f6732db153d">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Participation in Regulatory Meetings</u></font><font style="font-size: 10pt;">.&#160; With respect to a Collaboration Program, each Party will promptly provide the
                other Party with as much advance written notice as practicable of any meetings that such first Party has or plans to have with a Regulatory Authority regarding pre-approval or Approval matters for a Product under such Collaboration Program
                or that directly relate to Ionis&#8217; antisense oligonucleotide chemistry platform, and will allow two representatives of the other Party to participate in any such meetings under the direction of such first Party;<font style="font-style: italic;"> provided, however</font>, that, if such first Party is Ionis, Ionis may exclude Biogen from any portion of such meeting that does not pertain to such Product; and <font style="font-style: italic;">provided,</font>&#160;<font style="font-style: italic;">further</font>, that, if such first Party is Biogen, Biogen may exclude Ionis from any portion of such meeting that does not pertain to such Product or to Ionis&#8217; antisense oligonucleotide chemistry platform.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4e03d888187e4f3da4f864f266bed40a">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Regulatory Communications</u></font><font style="font-size: 10pt;">.&#160; With respect to a Collaboration Program, each Party will provide the other Party with
                copies of documents and communications submitted to (including drafts thereof) and received from Regulatory Authorities [***] that materially impact the Development or Commercialization of Products under such Collaboration Program for such
                other Party&#8217;s review and comment, and such first Party will consider in good faith including any comments provided by such other Party to such documents and communications. Each Party will promptly notify the other Party upon receipt of any
                such documents or communications from any Regulatory Authority [***].</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z6affd1115ec94e9d83068d3a17b28adc">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Class Generic Claims</u></font><font style="font-size: 10pt;">.&#160; To the extent Biogen intends to make any claims in a Product label or regulatory filing that are
                class generic to ASOs, Biogen will provide such claims and regulatory filings to Ionis in advance and will consider in good faith any proposals and comments made by Ionis; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that Biogen is not obligated to incorporate such proposals and comments in any such claims and regulatory filings.</font></div>
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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd6ba5ceb855245bb9b5c86ee35a53066">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">5.1.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Applicable Laws</u></font><font style="font-size: 10pt;">.&#160; Biogen will perform its activities pursuant to this Agreement in compliance with good laboratory and
                clinical practices and cGMP, in each case as applicable under the Laws and regulations of the country and the state and local government wherein such activities are conducted.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb9da23271f924188b1351d9af3300d94">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126746"></a><a name="z_Toc74129715"></a><a name="z_Toc74160268"></a><font style="font-weight: bold;">5.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Global Safety Database; Pharmacovigilance Agreement</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z545bcd3a3e2d448eb46e4ac4e31875b9">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">5.2.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Pharmacovigilance Agreement</u></font><font style="font-size: 10pt;">.&#160; As soon as reasonably practicable following designation of a particular Development
                Candidate, and in any event no later than [***] prior to the date on which Ionis anticipates filing an IND for the associated Product with a Regulatory Authority, the Parties will enter into a Safety Data Exchange Agreement relating to the
                collection, review, assessment, tracking, exchange and filing of information related to adverse events associated with such Product occurring prior to the First Commercial Sale in any country on terms substantially the same as the terms of
                the Safety Data Exchange Agreement to be entered into by the Parties with respect to adverse events associated with products developed under the Ionis/Biogen Additional Agreements.&#160; No later than [***] prior to the date on which Biogen
                reasonably anticipates that it will exercise an Option, Biogen will so notify Ionis and the pharmacovigilance departments of each of Ionis and Biogen will meet and determine the approach to be taken for the collection, review, assessment,
                tracking, exchange and filing of information related to adverse events associated with the applicable Product occurring after such First Commercial Sale, consistent with the provisions of this <u>Section 5.2</u>. Such approach will be
                documented in a separate and appropriate written pharmacovigilance agreement between the Parties which will control with respect to the subject matter covered therein (the &#8220;<font style="font-weight: bold; font-style: italic;">Pharmacovigilance






                  Agreement</font>&#8221;). Such agreement will specify that the owner of the IND for a Product will be the global commercial safety database owner for such Product with primary responsibility for maintaining such database, and that Ionis will be
                and remain the owner of the Ionis Internal ASO Safety Database with primary responsibility for maintaining such database. Such agreement will also specify that, prior to Biogen&#8217;s exercise of the applicable Option, Ionis will communicate
                updates on safety data regarding a Product to Biogen through monthly telephone calls between the drug safety representatives of Biogen and Ionis.&#160; Biogen and Ionis will jointly review and discuss safety issues arising under any
                Collaboration Program that may have implications on any Development Plan for such Collaboration Program.&#160; Biogen may suggest actions to address Product safety data or audit findings, and Ionis will consider all such suggestions in good
                faith. The Pharmacovigilance Agreement will be in accordance with, and will enable the Parties and their Affiliates or licensees or Sublicensees, as applicable, to fulfill, local and international regulatory reporting obligations to
                Regulatory Authorities and other Applicable Law.</font></div>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">36</font></div>
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        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zfefb3bea3a564505bfb476615b1f1d3c">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">5.2.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis&#8217; Antisense Safety Database</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2c57ad68b8df412caa6b4da8ebc9af04">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis maintains an internal database that includes information regarding the tolerability of its drug compounds, individually and as a class, including information discovered during pre-clinical and clinical development (the &#8220;<font style="font-weight: bold; font-style: italic;">Ionis Internal ASO Safety Database</font>&#8221;). In an effort to maximize understanding of the safety profile and pharmacokinetics of Ionis compounds, after the License Effective Date with respect
              to a Collaboration Program, Biogen will cooperate in connection with populating the Ionis Internal ASO Safety Database. To the extent collected by Biogen and in the form in which Biogen uses/stores such information for its own purposes,
              Biogen will provide Ionis with information concerning toxicology, pharmacokinetics, safety pharmacology study(ies), serious adverse events and other safety information related to Products as soon as practicable following the date such
              information is available to Biogen (but not later than [***] days after Biogen&#8217;s receipt of such information). In connection with any reported serious adverse event, Biogen will provide Ionis all serious adverse event reports, including
              initial, interim, follow-up, amended, and final reports. In addition, with respect to Products, Biogen will provide Ionis with copies of Annual safety updates filed with each IND and the safety sections of any final Clinical Study reports
              within [***] days following the date such information is filed or is available to Biogen, as applicable. Furthermore, Biogen will promptly provide Ionis with any supporting data and answer any follow-up questions reasonably requested by
              Ionis. All such information disclosed by Biogen to Ionis will be Biogen Confidential Information; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that Ionis may disclose any such Biogen
              Confidential Information to (i) Ionis&#8217; other partners pursuant to <u>Section 5.2.2(b)</u> below if such information is regarding class generic properties of ASOs, or (ii) any Third Party, in each case, so long as Ionis does not disclose the
              identity of a Product or Biogen. Biogen will deliver all such information to Ionis for the Ionis Internal ASO Safety Database to Ionis Pharmaceuticals, Inc., 2855 Gazelle Court, Carlsbad, California 92010, Attention: Chief Medical Officer (or
              to such other address/contact designated in writing by Ionis). Biogen will also cause its Affiliates and Sublicensees to comply with this <u>Section 5.2.2(a)</u>.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zcf7289beb3e74286a9f8182931e4f561">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>From time to time, Ionis utilizes the information in the Ionis Internal ASO Safety Database to conduct analyses to keep Ionis and its partners informed regarding class generic properties of ASOs, including with respect to safety. As such,
              if and when Ionis identifies safety or other related issues that may be relevant to a Product (including any potential class-related toxicity), Ionis will promptly (and in no event later than 5 Business Days following identification by Ionis)
              inform Biogen of such issues and, if requested, provide the data supporting Ionis&#8217; conclusions.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">37</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z60a981b5f4874e9487f419f2dd07b4c8">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74160269"></a><a name="z_Toc74126747"></a><a name="z_Toc74129716"></a><font style="font-weight: bold;">5.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Research and Manufacturing Records</u></font><font style="font-size: 10pt;">.&#160; Each Party shall maintain, consistent with its then-current internal policies and
                practices, and cause its employees and <a name="El23o1O"></a>subcontractors to maintain, consistent with its internal policies and Applicable Law, for at least ten years, records and laboratory notebooks, inventory, purchase and invoice
                records and Manufacturing records in each case with respect to the Products in sufficient detail and in a good scientific manner appropriate for <a name="DocXTextRef82"></a>(i) inclusion in filings with Regulatory Authorities for such
                Products, and (ii) obtaining and maintaining intellectual property rights and protections, <a name="El2eo1O"></a>including <a name="El2do1O"></a>Patent Rights for such Products. Such records and laboratory notebooks shall be complete and
                accurate in all material respects and shall fully and properly reflect all work done, data and developments made, and results achieved.&#160; Each Party shall allow the other Party, to the extent necessary for such regulatory or intellectual
                property protection purposes, to inspect or copy such records, subject to redaction by such Party.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 6</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126748"></a><a name="z_Toc74129717"></a><a name="z_Toc74160270"></a>FINANCIAL PROVISIONS</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z85e7dbf347ee469e8521468c3db91a54">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126749"></a><a name="z_Toc74129718"></a><a name="z_Toc74160271"></a><font style="font-weight: bold;">6.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Option Fee</u></font><font style="font-size: 10pt;">.&#160; In partial consideration for Biogen&#8217;s Options hereunder, within five Business Days following the Effective
                Date, Biogen will pay Ionis an Option fee equal to $10,000,000 for each of the three Collaboration Programs for an aggregate payment of $30,000,000.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z10c04385e0cd4790b0eac4905ad47114">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126750"></a><a name="z_Toc74129719"></a><a name="z_Toc74160272"></a><font style="font-weight: bold;">6.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Milestone Payments for Achievement of Pre-Licensing Milestone Events</u></font><font style="font-size: 10pt;">.&#160; As further consideration for Biogen&#8217;s Options,
                on a Collaboration Program-by-Collaboration Program basis, Biogen will pay to Ionis the milestone payments as set forth in <font style="font-variant: small-caps;"><u>Table 1</u></font> below when a milestone event (each, a &#8220;<font style="font-weight: bold; font-style: italic;">Pre-Licensing</font><font style="font-style: italic;">&#160;</font><font style="font-weight: bold; font-style: italic;">Milestone Event</font>&#8221;) listed in <font style="font-variant: small-caps;"><u>Table






                    1</u></font><font style="font-variant: small-caps;">&#160;</font>is first achieved by a Product under such Collaboration Program:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" border="0" align="center" style="border-collapse: collapse; width: 90%; color: #000000; font-family: 'Times New Roman'; font-size: 10pt; text-align: left;" id="z02352337625049199df632c81ebd48e5">

        <tr>
          <td colspan="1" style="background-color: #BFBFBF; border-bottom: 2px solid #000000; border-left: 2px solid #000000; border-top: 2px solid #000000; vertical-align: middle; width: 1%;">&#160;</td>
          <td colspan="2" style="background-color: #BFBFBF; border-bottom: 2px solid #000000; border-right: 2px solid #000000; border-top: 2px solid #000000; vertical-align: middle;">
            <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Table 1</u></div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="background-color: #D9D9D9; border-bottom: 2px solid #000000; border-left: 2px solid #000000; vertical-align: middle; width: 1%;">&#160;</td>
          <td style="background-color: #D9D9D9; border-bottom: 2px solid #000000; border-right: 2px solid #000000; vertical-align: middle; width: 44%;">
            <div style="font-weight: bold;">Pre-Licensing Milestone Event</div>
          </td>
          <td style="background-color: #D9D9D9; border-bottom: 2px solid #000000; border-right: 2px solid #000000; vertical-align: middle; width: 45%;">
            <div style="text-align: center; font-weight: bold;">Milestone Event Payment</div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="width: 1%; vertical-align: middle; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          <td style="width: 44%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 45%; vertical-align: middle; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">$[***]</div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="width: 1%; vertical-align: middle; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          <td style="width: 44%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 45%; vertical-align: middle; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***<u>]</u></div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="width: 1%; vertical-align: middle; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          <td style="width: 44%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 45%; vertical-align: middle; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***<u>]</u></div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: justify; margin-left: 36pt;">On a <a name="z_cp_text_1_191"></a>Collaboration Program-by-Collaboration Program basis, Biogen will pay to Ionis the Milestone Event payments as set forth in <font style="font-variant: small-caps;"><u>Table 1</u></font> after the applicable Milestone Event is first achieved by a Product under such Collaboration Program, even if Biogen has exercised the applicable Option prior to achievement of the Milestone Event; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that if Biogen exercises the Option prior to achievement of the [***] Milestone Event, then the milestone payment for achievement of the [***] Milestone
      Event will be [***].</div>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">38</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="ze3e3ca1c28c747eb84a6c83fc4695565">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126751"></a><a name="z_Toc74129720"></a><a name="z_Toc74160273"></a><font style="font-weight: bold;">6.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>License Fee</u></font><font style="font-size: 10pt;">.&#160; On an Option-by-Option basis, together with Biogen&#8217;s written notice to Ionis stating that Biogen is
                exercising such Option in accordance with this Agreement, Biogen will pay to Ionis a license fee of $[***]; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that if Biogen <a name="z_cp_text_1_194"></a>exercises the Option prior to the [***], the license fee for such Option will be [***].</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2af5d1607dd34745941b1234b387cc98">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126752"></a><a name="z_Toc74129721"></a><a name="z_Toc74160274"></a><font style="font-weight: bold;">6.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Milestone Payments for Achievement of Post-Licensing Milestone Events</u></font><font style="font-size: 10pt;">.&#160; On a Collaboration Program-by-Collaboration
                Program basis, Biogen will pay to Ionis the milestone payments as set forth in <font style="font-variant: small-caps;"><u>Table 2</u></font> below when a milestone event (each, a &#8220;<font style="font-weight: bold; font-style: italic;">Post-Licensing</font><font style="font-style: italic;">&#160;</font><font style="font-weight: bold; font-style: italic;">Milestone Event</font>&#8221;) listed in <font style="font-variant: small-caps;"><u>Table 2</u></font> is first achieved by a Product under such
                Collaboration Program:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" border="0" align="center" style="border-collapse: collapse; width: 90%; color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-size: 10pt; text-align: left;" id="zd11702628c9545b79925e0c0a5c92fe5">

        <tr>
          <td colspan="1" style="background-color: #BFBFBF; border-bottom: 2px solid #000000; border-left: 2px solid #000000; border-top: 2px solid #000000; vertical-align: middle; width: 1%;">&#160;</td>
          <td colspan="2" style="background-color: #BFBFBF; border-bottom: 2px solid #000000; border-right: 2px solid #000000; border-top: 2px solid #000000; vertical-align: middle;">
            <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Table 2</u></div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="background-color: #D9D9D9; border-bottom: 2px solid #000000; border-left: 2px solid #000000; vertical-align: middle; width: 1%;">&#160;</td>
          <td style="background-color: #D9D9D9; border-bottom: 2px solid #000000; border-right: 2px solid #000000; vertical-align: middle; width: 44%;">
            <div style="font-weight: bold;">Post-Licensing Milestone Event</div>
          </td>
          <td style="background-color: #D9D9D9; border-bottom: 2px solid #000000; border-right: 2px solid #000000; vertical-align: middle; width: 45%;">
            <div style="text-align: center; font-weight: bold;">Milestone Event Payment</div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="width: 1%; vertical-align: middle; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          <td style="width: 44%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 45%; vertical-align: middle; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">$[***]</div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="width: 1%; vertical-align: middle; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          <td style="width: 44%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 45%; vertical-align: middle; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">$[***]</div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="width: 1%; vertical-align: middle; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          <td style="width: 44%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 45%; vertical-align: middle; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">$[***]</div>
          </td>
        </tr>
        <tr>
          <td colspan="1" style="width: 1%; vertical-align: middle; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          <td style="width: 44%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 45%; vertical-align: middle; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">$[***]</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 36pt;">On a Collaboration Program-by-Collaboration Program basis, if Biogen exercises an Option prior to the [***], Biogen will pay to Ionis [***] upon the earlier of (a) [***]. For the avoidance of doubt,
      if such $[***] payment is paid pursuant to clause (b) of the preceding sentence, such payment will be in addition to the amount due upon the occurrence of the corresponding Post-Licensing Milestone Event under <font style="font-variant: small-caps;"><u>Table






          2</u></font> above.</div>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 36pt;">Notwithstanding anything to the contrary in this <u>Section 6.4</u>, if Biogen exercises an Option for a Product involving a Collaboration Target added in accordance with <u>Section 1.3.2</u>, and
      [***], then Biogen will pay to Ionis (i) [***] of the applicable amount set forth in <font style="font-variant: small-caps;"><u>Table 2</u></font> above when such Product achieves a Post-Licensing Milestone Event for the first time and (ii) [***] of
      the applicable amount set forth in <font style="font-variant: small-caps;"><u>Table 2</u></font> above when such Product achieves a Post-Licensing Milestone Event for the second time.</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9fe33d0adeff425dbe6f57a32aa2212c">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126753"></a><a name="z_Toc74129722"></a><a name="z_Toc74160275"></a><font style="font-weight: bold;">6.5.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Limitations on Milestone Payments; Exceptions; Notice</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc2ddf74247bd4ad4a523b7e0bc4da15b">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.5.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>On a Product-by-Product basis, the $[***] milestone payment is creditable against the first Milestone Event payment for [***]. For example, if the [***] Milestone Event is achieved by a Product in the [***], then the milestone payment for
              such Milestone Event is [***] the first to occur of the (a) [***] (b) [***] or (c) [***] milestone payments for such Product.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2202bea1e6f941199d0128ffdc66b13e">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.5.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>On a Collaboration Program-by-Collaboration Program basis, except as set forth in the second paragraph under <font style="font-variant: small-caps;"><u>Table 2</u></font> above, each milestone payment set forth in <font style="font-variant: small-caps;"><u>Table 1</u></font> and <font style="font-variant: small-caps;"><u>Table 2</u></font> above will be paid only once upon the first achievement of the Milestone Event regardless of how many Products under
              such Collaboration Program achieve such Milestone Event.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">39</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z1b35ea1f4d73405b849b7c91c3d4a7e3">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.5.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If a particular Milestone Event is not achieved because Development activities transpired such that achievement of such earlier Milestone Event was unnecessary or did not otherwise occur, then upon achievement of a later Milestone Event
              the Milestone Event payment applicable to such earlier Milestone Event will also be due. For example, if a Party proceeds directly to [***] without achieving the [***] then upon achieving the [***] Milestone Event, both the [***] and [***]
              Milestone Event payments are due.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf051808b71d64f7ebdf76cc26c865de5">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.5.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Each time a Milestone Event is achieved under this <u>ARTICLE 6</u>, Biogen will send Ionis, or Ionis will send Biogen, as the case may be, a written notice thereof promptly (but no later than [***]) following the date of achievement of
              such Milestone Event and such payment will be due within [***] of the date such notice was delivered.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zab8de83349194e5eb4ffc659a5a63984">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.5.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>For clarity, the provisions of this Agreement (including the milestone payments and license fees set forth in <u>Section 6.2</u>, <u>Section 6.3</u> and <u>Section 6.4</u>) shall not apply with respect to the Collaboration Program (as
              such term is defined in the Neurology II Agreement) for [***]; instead, royalties, milestone payments and license fees with respect to the [***] will be due in accordance with the Neurology II Agreement.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z1d2509445dc441f3a91629c7befbcc89">

        <tr>
          <td style="width: 0pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126754"></a><a name="z_Toc74129723"></a><a name="z_Toc74160276"></a><font style="font-weight: bold;">6.6.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Royalty Payments to Ionis</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z84fd04985ee84267a95b838b3e08ac27">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.6.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen Full Royalty</u></font><font style="font-size: 10pt;">.&#160; As partial consideration for the rights granted to Biogen hereunder, subject to the provisions of
                this <u>Section 6.6.1</u> and <u>Section 6.6.2</u>, Biogen will pay to Ionis royalties on a Collaboration Program-by-Collaboration Program basis, on Annual worldwide Net Sales of Products included in the applicable Collaboration Program
                sold by Biogen, its Affiliates or Sublicensees, on a country-by-country basis, in each case in the amounts as follows in <font style="font-variant: small-caps;"><u>Table 3</u></font> below (the &#8220;<font style="font-weight: bold; font-style: italic;">Biogen Full Royalty</font>&#8221;):</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" border="0" align="center" style="border-collapse: collapse; width: 90%; color: #000000; font-family: 'Times New Roman'; font-size: 10pt; text-align: left;" id="z875c2d2bf7a84479ad09a7dae447f66c">

        <tr>
          <td style="background-color: rgb(191, 191, 191); border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); vertical-align: top;" rowspan="1" colspan="4">
            <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Table 3</u></div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center; font-weight: bold;">Royalty</div>
            <div style="text-align: center; font-weight: bold;">Tier</div>
          </td>
          <td style="width: 1%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
          <td style="width: 69%; vertical-align: middle; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="font-weight: bold;">Annual Worldwide Net Sales of Products</div>
          </td>
          <td style="width: 10%; vertical-align: middle; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center; font-weight: bold;">Royalty</div>
            <div style="text-align: center; font-weight: bold;">Rate</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">1</div>
          </td>
          <td style="width: 1%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
          <td style="width: 69%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>For the portion of Annual worldwide Net Sales&#160; &#160; &#160; &#160; &lt; $[***]</div>
          </td>
          <td style="width: 10%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***]%</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">2</div>
          </td>
          <td style="width: 1%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
          <td style="width: 69%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>For the portion of Annual worldwide Net Sales&#160; &#160; &#160; &#160; <u>&gt;</u> $[***] but &lt; $[***]</div>
          </td>
          <td style="width: 10%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***]%</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">3</div>
          </td>
          <td style="width: 1%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
          <td style="width: 69%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>For the portion of Annual worldwide Net Sales&#160; &#160; &#160; &#160; <u>&gt;</u> $[***] but &lt; $[***]</div>
          </td>
          <td style="width: 10%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***]%</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">4</div>
          </td>
          <td style="width: 1%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
          <td style="width: 69%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div>For the portion of Annual worldwide Net Sales&#160; &#160; &#160; &#160; <u>&gt;</u> $[***]</div>
          </td>
          <td style="width: 10%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***]%</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">40</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <div style="text-align: justify;">Annual worldwide Net Sales will be calculated by [***].</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za3841c7c4cca4c6dadc797254933d830">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Biogen will pay Ionis royalties on Net Sales of Products arising from named patient and other similar programs under Applicable Laws, and Biogen will provide reports and payments to Ionis consistent with <u>Section 6.9</u>. No royalties
              are due on Net Sales of Products arising from compassionate use and other programs providing for the delivery of Product at no cost. The sales of Products arising from named patient, compassionate use, or other similar programs will not be
              considered a First Commercial Sale for purposes of calculating the Full Royalty Period.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4e5d6e4bb04143339f25e33fffd1f1c2">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>For purposes of clarification, any Ionis Product-Specific Patents assigned to Biogen as set forth in <u>Section 4.2.1</u> will still be considered Ionis Product-Specific Patents for determining the royalty term and applicable royalty
              rates under this <u>ARTICLE 6</u>.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8b25b15750624fb796f609fb5112fbbc">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>For clarity, the provisions of this Agreement (including <u>Section 6.6</u>) shall not apply to Net Sales of Products under the Collaboration Program (as such term is defined in the Neurology II Agreement) for [***]; instead, royalties,
              milestone payments and license fees with respect to the [***] will be due in accordance with the Neurology II Agreement.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc514b2eee78644908c5f77af2d8112b1">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.6.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Application of Royalty Rates</u></font><font style="font-size: 10pt;">.&#160; All royalties set forth under <u>Section 6.6.1</u> are subject to the provisions of
                this <u>Section 6.6.2</u>, and are payable as follows:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z19c1f719b7a244ca9996e1126fbe110a">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Full Royalty Period</u></font><font style="font-size: 10pt;">.&#160; Biogen&#8217;s obligation to pay Ionis the Biogen Full Royalty above with respect to a Product will
                continue on a country-by-country and Product-by-Product basis from the date of First Commercial Sale of such Product until the later of the date of expiration of (i) the last Valid Claim within the Licensed Patents Covering such Product in
                the country in which such Product is made, used or sold, (ii) the data exclusivity period conferred by the applicable Regulatory Authority in such country with respect to such Product (<u>e.g.</u>, such as in the case of an orphan drug), or
                (iii) the [***] anniversary of the First Commercial Sale of such Product in such country (such royalty period, the &#8220;<font style="font-weight: bold; font-style: italic;">Full Royalty Period</font>&#8221;).</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8802be80baae48dbbfdd2f19ed185551">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Competition from Generic Products</u></font><font style="font-size: 10pt;">.&#160; Subject to <u>Section 6.6.2(d)</u>, on a country-by-country and Product-by-Product
                basis, if, within the [***], a Generic Product is sold in a country, then the Biogen Full Royalty rate used to pay Ionis royalties on such Product in such country will be reduced to [***]% of the otherwise applicable Biogen Full Royalty
                rate. For the purpose of determining the [***] for a particular Product under this <u>Section 6.6.2(b)</u>, if requested by Biogen, Ionis and Biogen will meet and confer and mutually agree upon the Parties&#8217; best estimate of when the Full
                Royalty Period [***] in each country where Products are being sold.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">41</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd6fa38b629ce4d049c109928ac5672d0">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Reduced Royalty Period</u></font><font style="font-size: 10pt;">.&#160; Subject to <u>Section 6.6.2(d)</u>, on a country-by-country and Product-by-Product basis,
                after the expiration of the Full Royalty Period and until the end of the Reduced Royalty Period, in lieu of the royalty rates set forth in <font style="font-variant: small-caps;"><u>Table 3</u></font> of <u>Section 6.6.1</u>, Biogen will
                pay Ionis royalty rates (the &#8220;<font style="font-weight: bold; font-style: italic;">Biogen Reduced Royalty</font>&#8221;) on Net Sales of Products calculated on a Calendar Year-by-Calendar Year basis by [***]; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that the Biogen Reduced Royalty rate in each country will in no event exceed the [***].</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7d0dfdae875b4b339c2b47e351be2b95">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Limitation on Aggregate Reduction for Biogen Royalties</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8f4606cbdf32469f88c9a7dd97fffdd7">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>In no event will the aggregate royalty reductions under <u>Section 6.6.2(b)</u> and <u>Section 6.6.2(c)</u> reduce the royalties payable to Ionis on Net Sales of a Product in any given period to an amount that is less than [***] for such
              Product.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z3a71ee9b6b4f440a9a4d7f5982e97608">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>In no event will the aggregate royalty offsets under <u>Section 6.8.3(b)</u> and <u>Section 6.8.3(d)</u> reduce the royalties payable to Ionis on Net Sales of a Product in any given period to an amount that is less than the greater of
              [***].</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 144pt;">For example, if the Royalty Quotient during a given Calendar Year in the Reduced Royalty Period is less than [***]%, then the offsets under <u>Section 6.8.3(b)</u> and <u>Section 6.8.3(d)</u> will
      not apply during such Calendar Year but the full Royalty Quotient reduction pursuant to <u>Section 6.6.2(c)</u> will apply.</div>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 144pt;">As an additional example, if the Royalty Quotient during a given Calendar Year in the Reduced Royalty Period is [***], and the [***] in such Calendar Year are [***] of the applicable royalty rates
      in <font style="font-variant: small-caps;"><u>Table 3</u></font> of <u>Section 6.6.1</u>, then Biogen may apply the offsets under <u>Section 6.8.3(b)</u> and <u>Section 6.8.3(d)</u> until the actual royalty payment made to Ionis in such Calendar
      Year is equal to [***]% of the applicable royalty rates in <font style="font-variant: small-caps;"><u>Table 3</u></font> of <u>Section 6.6.1</u>.</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z00280851a9e0425da5e2f74bc5159ea8">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>End of Royalty Obligation</u></font><font style="font-size: 10pt;">.&#160; On a country-by-country and Product-by-Product basis, other than [***], Biogen&#8217;s obligation
                to make royalty payments hereunder for such Product in such country will end on the expiration of the Reduced Royalty Period in such country. &#8220;<font style="font-weight: bold; font-style: italic;">Reduced Royalty Period</font>&#8221; means, on a
                country by country basis, the period commencing upon the expiration of the [***] for such Product in such country and ending when the [***].</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">42</font></div>
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      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z14b9b8cde22b44fba849353d8818ccc9">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(f)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Royalty Examples</u></font><font style="font-size: 10pt;">.&#160; <font style="font-variant: small-caps;"><u>Schedule </u></font><u>6.6.2(f)</u> attached hereto
                contains examples of how royalties will be calculated under this <u>Section 6.6</u>.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7780f0f2ef77418890bf0ad01f6d3946">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(g)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Allocation of Net Sales</u></font><font style="font-size: 10pt;">.&#160; If, by reason of one or more royalty rate adjustments under this <u>Section 6.6.2</u>,
                different royalty rates apply to Net Sales of Products from different countries, Biogen will [***] such Net Sales [***<font style="font-variant: small-caps;"><u>]</u></font>. <font style="font-variant: small-caps;"><u>Schedule </u></font><u>6.6.2(g)</u>
                attached hereto contains examples of how Net Sales of Products from different countries at different royalty rates will be [***<font style="font-variant: small-caps;"><u>]</u></font>.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf7cca30afb524902b87c061931351712">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126755"></a><a name="z_Toc74129724"></a><a name="z_Toc74160277"></a><font style="font-weight: bold;">6.7.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Reverse Royalty Payments to Biogen for a Discontinued Product</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc9e72be6fd3846a489c64d25f7676bfc">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.7.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Reverse Royalty for a Discontinued Product</u></font><font style="font-size: 10pt;">.&#160; If Ionis or any of its Affiliates or Sublicensees Commercializes a
                Discontinued Product for which Biogen has paid Ionis the license fee under <u>Section 6.3</u>, then following the First Commercial Sale of such Discontinued Product by Ionis or its Affiliates or Sublicensees, Ionis will pay Biogen or its
                designated Affiliate a royalty of [***]% of Annual worldwide Net Sales of such Discontinued Product (&#8220;<font style="font-weight: bold; font-style: italic;">Reverse</font><font style="font-weight: bold;">&#160;</font><font style="font-weight: bold; font-style: italic;">Royalties</font>&#8221;). Ionis&#8217; obligation to pay Biogen Reverse Royalties will [***<u>]</u>.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2146f36d93ed420a9280bb5d3a1673fb">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.7.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Applicable Royalty Provisions</u></font><font style="font-size: 10pt;">.&#160; In addition to this <u>Section 6.7</u>, the definition of Net Sales in <font style="font-variant: small-caps;"><u>Appendix</u></font><u> 1</u> and the other provisions contained in this <u>ARTICLE 6</u> governing payment of royalties from Biogen to Ionis will govern the payment of Reverse Royalties from Ionis to
                Biogen under this <u>Section 6.7</u>, <font style="font-style: italic;">mutatis mutandis</font>, including the provisions of <u>Sections 6.6.2</u>, <u>6.8</u>, <u>6.9</u>, <u>6.10</u>, <u>6.11</u>, and <u>6.12</u>.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd0a97dc4fd1a4cb083d0137789d40bc0">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126756"></a><a name="z_Toc74129725"></a><a name="z_Toc74160278"></a><font style="font-weight: bold;">6.8.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Third Party Payment Obligations</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4a2b172e19fd44c992b1c2e5fa238230">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.8.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Existing Ionis In-License Agreements</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z527f52b6bece490294b4868a33449442">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Certain of the Licensed Technology Controlled by Ionis as of the Effective Date licensed to Biogen under <u>Section 4.1.1</u> were in-licensed or were acquired by Ionis under the agreements with Third Party licensors or sellers listed on
              <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 6.8.1</u> or in a separate written agreement between the Parties (all such license or purchase agreements being the &#8220;<font style="font-weight: bold; font-style: italic;">Ionis
                In-License Agreements</font>&#8221;), and certain milestone or royalty payments and license maintenance fees may become payable by Ionis to such Third Parties under the Ionis In-License Agreements based on the Development and Commercialization of
              a Product by Biogen under this Agreement.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z25250cb770f94e0298e39b427fb36a0f">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Any payment obligations arising under the Ionis In-License Agreements as existing on the Effective Date as they apply to Products will be paid by [***] as [***].</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">43</font></div>
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      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb355592c7d804dc79dfd18cd7f2851fc">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.8.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>New In-Licensed Ionis Product-Specific Patents; Ionis Manufacturing and Analytical Patents</u></font><font style="font-size: 10pt;">.&#160; If after the Effective
                Date, Ionis obtains Third Party Patent Rights necessary or useful to Develop, Manufacture or Commercialize a Product that would have been considered an Ionis Product-Specific Patent had Ionis Controlled such Patent Rights on the Effective
                Date, to the extent Controlled by Ionis, Ionis will include such Third Party Patent Rights in the license granted to Biogen under <u>Section 4.1.1</u> if Biogen agrees in writing to pay Ionis as [***].</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z459bca6b6d664cb5ae04b6825bce9a76">

        <tr>
          <td style="width: 36pt;">&#160;</td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.8.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Additional Core IP In-License Agreements</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z307e9e261b244f2098c16ac11938a17a">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Biogen will promptly provide Ionis written notice of any Additional Core IP Biogen believes it has identified and Ionis will have the first right, but not the obligation, to negotiate with, and obtain a license from the Third Party
              Controlling such Additional Core IP. If Ionis obtains such a Third Party license, Ionis will include such Additional Core IP in the license granted to Biogen under <u>Section 4.1.1</u>, and any financial obligations under such Third Party
              agreement will be paid solely by [***] as [***].</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z519ea23e8b9b4c81983f97a778fcf968">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If, however, Ionis elects not to obtain such a license to such Third Party intellectual property, Ionis will so notify Biogen, and Biogen may obtain such a Third Party license and, subject to <u>Section 6.6.2(d)(ii)</u>, Biogen may offset
              an amount equal to [***]% of any [***] paid by Biogen under such Third Party license against any [***<u>]</u> of this Agreement in such country for [***].</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z12dc4f7007074096b01a4f78879d80eb">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If it is unclear whether certain intellectual property identified by Biogen pursuant to <u>Section 6.8.3(a)</u> is Additional Core IP under <u>Section 6.8.3(b)</u>, Ionis will send written notice to such effect to Biogen, and the Parties
              will engage a mutually agreed upon independent Third Party intellectual property lawyer with expertise in the patenting of <a name="z_cp_text_1_196"></a>ASOs, and appropriate professional credentials in the relevant jurisdiction, to
              determine the question of whether or not such Third Party intellectual property is Additional Core IP. The determination of the Third Party expert engaged under the preceding sentence will be binding on the Parties solely for purposes of
              determining whether Biogen is permitted to [***].&#160; The costs of any Third Party expert engaged under this <u>Section 6.8.3(c)</u> will be paid by the Party against whose position the Third Party lawyer&#8217;s determination is made.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za78904371b4f47a9bff573c282ad4385">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Notwithstanding the determination of the Third Party lawyer under <u>Section 6.8.3(c)</u>, if a Third Party Controlling Additional Core IP is awarded a judgment from a court of competent jurisdiction arising from its claim against Biogen
              asserting that [***], Biogen will be permitted to [***].</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za96add57ed9e46de92c1682984899d74">

        <tr>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.8.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Other Third Party Payments</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zea5f619770014a5b973320436b72034f">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis&#8217; Third Party Agreements</u></font><font style="font-size: 10pt;">.&#160; Except as otherwise expressly agreed to by Biogen under clause (c) of <u>Section 1.3.2</u>
                or <u>Section 6.8.2</u>, after the License Effective Date for a particular Collaboration Program, Biogen will be responsible for paying [***]% of the [***] arising under any Third Party agreements entered into by Ionis where either [***].</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbb4865106aa543e5b64d4f2802d1822b">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Third Party Agreements</u></font><font style="font-size: 10pt;">.&#160; Without limiting any applicable [***] under <u>Section 6.8.3(b)</u>, Biogen will be
                responsible for paying [***]% of the [***] arising under any Third Party agreements entered into by Biogen as they apply to Products.</font></div>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z38f08e319932476293bb05cce3e67065">

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          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126757"></a><a name="z_Toc74129726"></a><a name="z_Toc74160279"></a><font style="font-weight: bold;">6.9.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Payments</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zebd11a5fe79d427481e27643711deb40">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.9.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Commencement</u></font><font style="font-size: 10pt;">.&#160; Beginning with the Calendar Quarter in which the First Commercial Sale for a Product is made and for
                each Calendar Quarter thereafter, Biogen will make royalty payments to Ionis under this Agreement within [***] following the end of each such Calendar Quarter. Each royalty payment will be accompanied by a report, summarizing Net Sales for
                Products during the relevant Calendar Quarter and the calculation of royalties due thereon, including country, units, sales price and the exchange rate used and the aggregate reduction to gross sales to arrive at Net Sales.&#160; Following the
                end of the first full Calendar Quarter subsequent to the First Commercial Sale in a Major Market of any Product (but not in any subsequent Calendar Quarter unless there is a material change in the amount of any reduction to gross sales or
                the methodology used by Biogen to calculate any such reduction), Biogen will also include in such report a description of the reductions to gross sales to arrive at Net Sales, broken down by each category of reduction listed in clauses (a)
                through (d) of the definition of &#8220;Net Sales&#8221; and a non-binding qualitative analysis describing how Biogen anticipates such reductions may fluctuate over time. If no royalties are payable in respect of a given Calendar Quarter, then Biogen
                will submit a written royalty report to Ionis so indicating together with an explanation as to why no such royalties are payable. In addition, beginning with the Calendar Quarter in which the First Commercial Sale for a Product is made and
                for each Calendar Quarter thereafter, within [***] following the end of each such Calendar Quarter, Biogen will provide Ionis a [***] report estimating the total Net Sales of, and royalties payable to Ionis for Products projected for such
                Calendar Quarter.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7682dfcacb814ce6af38de623aac7b8c">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.9.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Mode of Payment</u></font><font style="font-size: 10pt;">.&#160; All payments under this Agreement will be (a) payable in full in U.S. dollars, regardless of the
                country(ies) in which sales are made, (b) made by wire transfer of immediately available funds to an account designated by Ionis in writing, and (c) non-creditable [***], irrevocable and non-refundable. Whenever for the purposes of
                calculating the royalties payable under this Agreement conversion from any foreign currency will be required, all amounts will first be calculated in the currency of sale and then converted into United States dollars by applying the monthly
                average rate of exchange calculated by using the foreign exchange rates published in Bloomberg during the applicable month starting two Business Days before the beginning of such month and ending two Business Days before the end of such
                month as utilized by Biogen, in accordance with generally accepted accounting principles, fairly applied and as employed on a consistent basis throughout Biogen&#8217;s operations.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">45</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbb8e4d737b374ad7a60c0cea5e958be4">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.9.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Records Retention</u></font><font style="font-size: 10pt;">.&#160; Commencing with the First Commercial Sale of a Product, Biogen will keep complete and accurate
                records pertaining to the sale of Products for a period of [***] after the year in which such sales occurred, and in sufficient detail to permit Ionis to confirm the accuracy of the Net Sales or royalties paid by Biogen hereunder.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z05d1b657080a4f90a51a8c601dd94c97">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126758"></a><a name="z_Toc74129727"></a><a name="z_Toc74160280"></a><font style="font-weight: bold;">6.10.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Audits</u></font><font style="font-size: 10pt;">.&#160; After the License Effective Date for a particular Collaboration Program, during the Agreement Term and for a
                period of [***] thereafter, at the request and expense of Ionis, Biogen will permit an independent certified public accountant of nationally recognized standing appointed by Ionis, at reasonable times and upon reasonable notice, but in no
                case more than [***], to examine such records as may be necessary for the purpose of verifying the calculation and reporting of Net Sales and the correctness of any royalty payment made under this Agreement for any period within the
                preceding [***]. As a condition to examining any records of Biogen, such auditor will sign a nondisclosure agreement reasonably acceptable to Biogen in form and substance. Any and all records of Biogen examined by such independent certified
                public accountant will be deemed Biogen&#8217;s Confidential Information. Upon completion of the audit, the accounting firm will provide both Biogen and Ionis with a written report disclosing whether the royalty payments made by Biogen are
                correct or incorrect and the specific details concerning any discrepancies (&#8220;<font style="font-weight: bold; font-style: italic;">Audit Report</font>&#8221;). If, as a result of any inspection of the books and records of Biogen, it is shown that
                Biogen&#8217;s payments under this Agreement were less than the royalty amount which should have been paid, then Biogen will make all payments required to be made by paying Ionis the difference between such amounts to eliminate any discrepancy
                revealed by said inspection within </font><font style="font-size: 10pt;">[***] days of receiving the Audit Report, with interest calculated in accordance with <u>Section 6.12</u>. If, as a result of any inspection of the books and records
                of Biogen, it is shown that Biogen&#8217;s payments under this Agreement were greater than the royalty amount which should have been paid, then [***]; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>,
                that if [***]. Ionis will pay for such audit, except that if Biogen is found to have underpaid Ionis by more than [***] of the amount that should have been paid, Biogen will reimburse Ionis&#8217; reasonable costs of the audit.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z1802d7ae67df44559dda85778bbad890">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126759"></a><a name="z_Toc74129728"></a><a name="z_Toc74160281"></a><font style="font-weight: bold;">6.11.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Taxes</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc0056aac06734b09b83bafedd345a705">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.11.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Taxes on Income</u></font><font style="font-size: 10pt;">.&#160; Each Party will be solely responsible for the payment of all taxes imposed on its share of income
                arising directly or indirectly from the activities of the Parties under this Agreement.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z645084410b954eafbfc3655ed4377f2b">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.11.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Withholding Tax</u></font><font style="font-size: 10pt;">.&#160; The Parties agree to cooperate with one another and use reasonable efforts to lawfully avoid or
                reduce tax withholding or similar obligations in respect of royalties, milestone payments, and other payments, including from subsequent payments, made by the paying Party to the receiving Party under this Agreement. To the extent the
                paying Party is required to deduct and withhold taxes on any payment, the paying Party will pay the amounts of such taxes to the proper governmental authority for the account of the receiving Party and remit the net amount to the receiving
                Party in a timely manner. The paying Party will promptly furnish the receiving Party with proof of payment of such taxes. If documentation is necessary in order to secure an exemption from, or a reduction in, any withholding taxes, the
                Parties will provide such documentation to the extent they are entitled to do so.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">46</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zcad38b68b8a946aaa844a9bbe119cdf9">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">6.11.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Tax Cooperation</u></font><font style="font-size: 10pt;">.&#160; Ionis will provide Biogen with any and all tax forms that may be reasonably necessary in order for
                Biogen to lawfully not withhold tax or to withhold tax at a reduced rate under an applicable bilateral income tax treaty. Following Biogen&#8217;s timely receipt of such tax forms from Ionis, Biogen will not withhold tax or will withhold tax at a
                reduced rate under an applicable bilateral income tax treaty, if appropriate under the Applicable Laws.&#160; Ionis will provide any such tax forms to Biogen upon request and in advance of the due date. Each Party will provide the other with
                reasonable assistance to enable the recovery, as permitted by Applicable Law, of withholding taxes resulting from payments made under this Agreement, such recovery to be for the benefit of the Party who would have been entitled to receive
                the money but for the application of withholding tax under this <u>Section 6.11</u>.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 36pt;">The provisions of this <u>Section 6.11</u> are to be read in conjunction with the provisions of <u>Section 12.4</u> below.</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z25d8f4681c1243c685e3d31184660260">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126760"></a><a name="z_Toc74129729"></a><a name="z_Toc74160282"></a><font style="font-weight: bold;">6.12.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Interest</u></font><font style="font-size: 10pt;">.&#160; Any undisputed payments to be made hereunder that are not paid on or before the date such payments are due
                under this Agreement will bear interest at a rate per annum equal to the lesser of (a) the rate announced by Bank of America (or its successor) as its prime rate in effect on the date that such payment would have been first due plus 1% or
                (b) the maximum rate permissible under Applicable Law.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 7</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126761"></a><a name="z_Toc74129730"></a><a name="z_Toc74160283"></a>INTELLECTUAL PROPERTY</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf60e321797c04084a364a2747293ebe0">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126762"></a><a name="z_Toc74129731"></a><a name="z_Toc74160284"></a><font style="font-weight: bold;">7.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ownership</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z977b6eb801b8438da7cbea2e83588746">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.1.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis Technology and Biogen Technology</u></font><font style="font-size: 10pt;">.&#160; As between the Parties, Ionis will own and retain all of its rights, title and
                interests in and to the Licensed Know-How and Licensed Patents and Biogen will own and retain all of its rights, title and interests in and to the Biogen Know-How and Biogen Patents, subject to any assignments, rights or licenses expressly
                granted by one Party to the other Party under this Agreement.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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      <div style="page-break-after:always;" id="DSPFPageBreak">
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      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zfd1be33ed0e74ee39d1844e63fe70e90">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.1.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Agreement Technology</u></font><font style="font-size: 10pt;">.&#160; As between the Parties, Biogen is and will be the sole owner of any Know-How discovered,
                developed, invented or created solely by or on behalf of Biogen or its Affiliates under this Agreement (&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Program Know-How</font>&#8221;) and any Patent Rights that claim or cover Biogen
                Program Know-How (&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Program Patents</font>&#8221; and together with the Biogen Program Know-How, the &#8220;<font style="font-weight: bold; font-style: italic;">Biogen Program Technology</font>&#8221;),






                and will retain all of its rights, title and interests thereto, subject to any rights or licenses expressly granted by Biogen to Ionis under this Agreement. As between the Parties, Ionis is and will be the sole owner of any Know-How
                discovered, developed, invented or created solely by or on behalf of Ionis or its Affiliates under this Agreement (&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Program Know-How</font>&#8221;) and any Patent Rights that claim or
                cover such Know-How (&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Program Patents</font>&#8221; and together with the Ionis Program Know-How, the &#8220;<font style="font-weight: bold; font-style: italic;">Ionis Program Technology</font>&#8221;),






                and will retain all of its rights, title and interests thereto, subject to any assignment, rights or licenses expressly granted by Ionis to Biogen under this Agreement. Any Know-How discovered, developed, invented or created jointly under
                this Agreement by or on behalf of both Parties or their respective Affiliates or Third Parties acting on their behalf (&#8220;<font style="font-weight: bold; font-style: italic;">Jointly-Owned Program Know-How</font>&#8221;) and any Patent Rights that
                claim or cover such Jointly-Owned Program Know-How (&#8220;<font style="font-weight: bold; font-style: italic;">Jointly-Owned Program Patents</font>&#8221; and together with the Jointly-Owned Program Know-How, the &#8220;<font style="font-weight: bold; font-style: italic;">Jointly-Owned Program Technology</font>&#8221;), are and will be owned jointly by Biogen and Ionis on an equal and undivided basis, including all rights, title and interests thereto, subject to any rights or licenses
                expressly granted by one Party to the other Party under this Agreement.&#160; Except as expressly provided in this Agreement, neither Party will have any obligation to account to the other for profits with respect to, or to obtain any consent of
                the other Party to license or exploit, Jointly-Owned Program Technology by reason of joint ownership thereof, and each Party hereby waives any right it may have under the Laws of any jurisdiction to require any such consent or accounting.
                Each Party will promptly disclose to the other Party in writing, and will cause its Affiliates to so disclose, the discovery, development, invention or creation of any Jointly-Owned Program Technology. The Biogen Program Patents, Ionis
                Program Patents and Jointly-Owned Program Patents are collectively referred to herein as the &#8220;<font style="font-weight: bold; font-style: italic;">Program Patents</font>.&#8221;</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd9537fd7eab6492b80a761c63a41c4ad">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.1.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Joint Patent Committee</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb527eafad7b6430e83074d8b7a2ab269">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The Parties will establish a &#8220;<font style="font-weight: bold; font-style: italic;">Joint Patent Committee</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">JPC</font>.&#8221;&#160; The JPC will serve as the primary contact and forum
              for discussion between the Parties with respect to intellectual property matters arising under this Agreement, with responsibilities including (i) the preparation of the intellectual property strategy to govern the Parties&#8217; activities set
              forth in the Collaboration Program Research Plans and the activities set forth in this <u>ARTICLE 7</u>, (ii) making recommendations following discussion by the Parties regarding Third Party intellectual property rights that may be necessary
              or useful to perform activities under, and the intellectual property considerations to be taken into account in, Collaboration Program Research Plans, (iii) making recommendations with respect to intellectual property considerations to be
              taken into account in each Development Plan, (iv) the preparation of recommendations with respect to intellectual property considerations in connection with proposed Development Candidates for consideration by the Parties, (v) assessing and
              making recommendations to the Neurology JSC prior to the Completion of IND-Enabling Toxicology Studies regarding any Patent Rights of any Third Party that may be necessary or useful for the Development, Manufacture or Commercialization of any
              Development Candidate that is the subject of such IND-Enabling Toxicology Studies and (vi) evaluating any activities under a Collaboration Program Research Plan or Development Plan that are proposed to be conducted with an academic or
              non-profit collaborator and making recommendations as to where and with whom such activities should be conducted, and in each case will cooperate with respect to any such activities. Ionis&#8217; obligation to participate in the JPC will terminate
              on the later of (A) the end of the Drug Discovery Term and (B) Biogen&#8217;s exercise of (or the expiration or termination of) the last Option. Thereafter, Ionis will have the right, but not the obligation, to participate in JPC meetings, but
              shall nevertheless continue to coordinate with Biogen with respect to the activities set forth in this <u>ARTICLE 7</u> during the Agreement Term.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z5ad1869e0dc348ee9c15bd6dac8b6616">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The JPC will discuss a strategy and make recommendations with regard to intellectual property considerations (i) with respect to the Parties&#8217; activities under the Collaboration Program, Drug Discovery Program and the Drug Development
              Program, promptly following the Amendment Date and (ii) with respect to each Collaboration Program, promptly after such Collaboration Program is designated, which strategies shall include (A) considerations for identifying potential
              inventions and making inventorship determinations, (B) considerations when selecting each Development Candidate, (C) considerations for Prosecution and Maintenance, defense and enforcement of Ionis Product-Specific Patents that would be or
              are licensed to Biogen under <u>Section 4.1.1</u> in connection with a Product, Biogen Product-Specific Patents and Jointly-Owned Program Patents, (D) defense against allegations of infringement of Third Party Patent Rights and (E) licenses
              to Third Party Patent Rights or Know-How, in each case ((A) through (E)) to the extent such matter would be reasonably likely to have a material impact on the Agreement or the ownership of intellectual property or the licenses granted
              hereunder. The applicable strategy and the JPC&#8217;s recommendations, as applicable, will be considered in good faith in the performance of the Collaboration Program Research Plans and Development Plans, the preparation of the intellectual
              property assessment to be included in each Development Candidate Data Package and by the Party entitled to designate a Development Candidate or prosecute, enforce and defend such Patent Rights, as applicable, hereunder, but will not be
              binding on such Party.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8fe0cb4ae6c7472d9cec5797f25ef264">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis or Biogen (as applicable) will provide the Joint Patent Committee with notice of any Know-How or Patent Rights discovered, developed, invented or created jointly by such Party and a Third Party in the performance of activities under
              the Collaboration Program Research Plans or Development Plans or solely by a Third Party performing activities under the Collaboration Program Research Plans or Development Plans on such Party&#8217;s behalf (such Know-How and Patent Rights, the &#8220;<font style="font-weight: bold; font-style: italic;">Collaborator IP</font>&#8221;) promptly after such Party receives notice or otherwise becomes aware of the existence of such Collaborator IP. The JPC will determine whether any such Collaborator IP
              would be infringed or misappropriated (as applicable) by the Development, Manufacture or Commercialization of the applicable Development Candidate or any Compound under consideration by Ionis for potential designation as a Development
              Candidate.&#160; If the JPC (or independent patent counsel engaged pursuant to <u>Section 7.1.3(b))</u> determines that any Collaborator IP would be infringed or misappropriated (as applicable) by the Development, Manufacture or Commercialization
              of such Development Candidate or Compound, [***]; <font style="font-style: italic;">provided</font> that if such Party is unable to obtain [***] license to such Collaborator IP or if the Parties mutually agree that it is not necessary to
              obtain [***] license, then such Party shall use commercially reasonable efforts to obtain [***] license to such Collaborator IP from such Third Party (any such [***] with such Third Party, a &#8220;<font style="font-weight: bold; font-style: italic;">Collaborator License</font>&#8221;), and in each case, such Party will endeavor to obtain in such Collaborator License the right to sublicense such Collaborator IP to the other Party on terms that contain no greater restrictions on the
              other Party&#8217;s use of such Collaborator IP than those set forth in this Agreement.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">49</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbe0249a120dd45fbb961fcc8d0ccda9a">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Notwithstanding any provision to the contrary in this Agreement, including <u>Section 6.8</u>, if Collaborator IP (other than Additional Core IP) arises from activities performed by a Third Party under the applicable Collaboration Program
              Research Plan, Development Plan or IDP, then any payment obligations arising under the applicable Collaborator License based on the Development or Commercialization of a Product will be [***] as follows: (i) in the case where [***] enters
              into such Collaborator License, [***] will be solely responsible for paying any payment obligations that [***], <font style="font-style: italic;">except</font> that [***] will be solely responsible for paying any payment obligations that
              [***] under any such Collaborator Licenses that [***] approved prior to execution thereof and (ii) in the case where [***] enters into such Collaborator License, [***] will be [***] responsible for paying any payment obligations that [***].</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zab33052964e54a6a8568196fcd18eba8">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>With respect to any such Collaborator IP licensed by Ionis under a Collaborator License with such Third Party, Biogen will have the right in accordance with <u>Section 4.1.4</u> to elect to exclude any such Collaborator IP from the
              applicable license granted to Biogen under <u>Section 4.1.1</u> by providing Ionis written notice prior to the License Effective Date for the applicable Collaboration Program. If, Biogen timely provides Ionis with such a written notice to
              exclude certain of such Collaborator IP from such license, then such Collaborator IP will not be included in the Licensed Technology licensed with respect to such Collaboration Program under this Agreement. If Biogen does not provide Ionis
              with such a written notice to exclude such Collaborator IP prior to the License Effective Date for the applicable Collaboration Program hereunder, then such Collaborator IP (and any Third Party Obligations to the extent applicable to
              Products) will be included in the Licensed Technology licensed with respect to the applicable Collaboration Program under this Agreement.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">50</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable">

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            </td>
            <td style="width: 36pt; vertical-align: top; font-weight: bold;">(f)</td>
            <td style="width: auto; vertical-align: top; text-align: justify;">
              <div>In case of a dispute in the Joint Patent Committee over whether any Collaborator IP would be infringed or misappropriated (as applicable) by the Development, Manufacture or Commercialization of the applicable Development Candidate or any
                Compound under consideration by Ionis for potential designation as the Development Candidate, at the non-contracting Party&#8217;s request, such dispute will be resolved by independent patent counsel not engaged or regularly employed in the past
                two years by either Party and reasonably acceptable to both Parties, taking into account any existing prior art.&#160; The decision of such independent patent counsel will be binding on the Parties.&#160; Expenses of such patent counsel will be borne
                by the non-contracting Party.</div>
            </td>
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      </table>
    </div>
    <div> <br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="ze455c09068ce4059b915852934b1f19e">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(g)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>In addition, the Joint Patent Committee will be responsible for the determination of inventorship of Patent Rights that claim or cover Know-How discovered, developed, invented or created under this Agreement in accordance with United
              States patent Laws. In case of a dispute in the Joint Patent Committee (or otherwise between Ionis and Biogen) over inventorship of Program Patents, if the Joint Patent Committee cannot resolve such dispute, then such dispute will be resolved
              by independent patent counsel not engaged or regularly employed in the past two years by either Party and reasonably acceptable to both Parties.&#160; The decision of such independent patent counsel will be binding on the Parties.&#160; Expenses of
              such patent counsel will be shared equally by the Parties.</div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zaaa487417fd14f7ebc9bb295942352c4">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(h)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The JPC will comprise an equal number of members from each Party. The Joint Patent Committee will meet as often as agreed by them (and at least semi-Annually), to discuss matters arising out of the activities set forth in this <u>ARTICLE
                7</u>. The JPC will determine by unanimous consent of its members the JPC operating procedures at its first meeting, including the JPC&#8217;s policies for replacement of JPC members, and the location of meetings, which will be codified in the
              written minutes of the first JPC meeting. To the extent reasonably requested by either Party, the Joint Patent Committee will solicit the involvement of more senior members of their respective legal departments (up to the most senior
              intellectual property attorney, where appropriate) with respect to critical issues, and may escalate issues to the Executives for input and resolution pursuant to <u>Section 12.1</u>. Each Party&#8217;s representatives on the Joint Patent
              Committee will consider comments and suggestions made by the other in good faith. If either Party deems it reasonably advisable, the Parties will enter into a mutually agreeable common interest agreement covering the matters contemplated by
              this Agreement.</div>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zccb4e32dc8eb4eaea81d057429f45dc4">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126763"></a><a name="z_Toc74129732"></a><a name="z_Toc74160285"></a><font style="font-weight: bold;">7.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Prosecution and Maintenance of Patents</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf13883c84efa43b990fea157f074e155">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.2.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Patent Filings</u></font><font style="font-size: 10pt;">.&#160; Subject to Biogen&#8217;s right to provide reasonable input and comment as set forth in <u>Section 7.2.4(a)</u>,
                the Party responsible for Prosecution and Maintenance of any Patent Rights as set forth in <u>Section 7.2.2</u> and <u>Section 7.2.3</u> will endeavor to obtain patent protection for the applicable Product as it Prosecutes and Maintains
                its other patents Covering products in development, using counsel of its own choice but reasonably acceptable to the other Party, in such countries as the responsible Party sees fit.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">51</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd4fa2a6f87284ffa824294360b22e85f">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.2.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Licensed Patents and Biogen Patents</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="ze7aa12ea49694d2faeeb9e1ba8180e13">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Licensed Patents In General</u></font><font style="font-size: 10pt;">.&#160; Prior to the License Effective Date for a Collaboration Program, and subject to Biogen&#8217;s
                right to provide reasonable input and comment as set forth in <u>Section 7.2.4(a)</u>, Ionis will control and be responsible for all aspects of the Prosecution and Maintenance of all Licensed Patents that are the subject of such license
                grant for such Collaboration Program, subject to this <u>Section 7.2.2(a)</u> and <u>Section 7.2.3</u>. During the Agreement Term, Ionis will control and be responsible for all aspects of the Ionis Core Technology Patents and Ionis
                Manufacturing and Analytical Patents. Ionis will use commercially reasonable efforts to diligently Prosecute and Maintain all Jointly-Owned Program Patents for which Ionis has the right to Prosecute and Maintain. On a Collaboration
                Program-by-Collaboration Program basis, until the earlier of the License Effective Date with respect to such Collaboration Program and the expiration or termination of Biogen&#8217;s right to be granted such license, Ionis will use commercially
                reasonable efforts to diligently Prosecute and Maintain all Ionis Product-Specific Patents that are the subject of such Collaboration Program to the extent that Ionis has the right to Prosecute and Maintain such Patent Rights.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf4bbec41fa804afbaefc26fef5e6ce06">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Licensed Patents After License Effective Date</u></font><font style="font-size: 10pt;">.&#160; Upon the License Effective Date with respect to a Collaboration
                Program, Biogen will control and be responsible for all aspects of the Prosecution and Maintenance of all the Ionis Product-Specific Patents and Jointly-Owned Program Patents that are subject to the license under <u>Section 4.1.1</u> for
                such Collaboration Program to the same extent Ionis had the right to control and was responsible for such Prosecution and Maintenance immediately prior to such License Effective Date, subject to <u>Section 7.2.3</u>, and will grant Ionis
                the license set forth in <u>Section 4.2.2</u>.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7761f84eddab465387239409d02ce46b">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen Patents</u></font><font style="font-size: 10pt;">.&#160; Biogen will control and be responsible for all aspects of the Prosecution and Maintenance of all
                Biogen Patents, subject to <u>Section 7.2.3</u>.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zee665d0b046e41fd8d9903ab47e2b238">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.2.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Jointly-Owned Program Patents</u></font><font style="font-size: 10pt;">.&#160; Subject to Biogen&#8217;s right to provide reasonable input and comment as set forth in <u>Section






                  7.2.4(a)</u>, Ionis will control and be responsible for all aspects of the Prosecution and Maintenance of Jointly-Owned Program Patents that do not Cover Products.&#160; Prior to the License Effective Date for a Collaboration Program and
                subject to Biogen&#8217;s right to provide reasonable input and comment as set forth in <u>Section 7.2.4(a)</u>, Ionis will control and be responsible for all aspects of the Prosecution and Maintenance of Jointly-Owned Program Patents Covering
                Products that are the subject of such Collaboration Program. After the License Effective Date for a Collaboration Program, Biogen will control and be responsible for all aspects of the Prosecution and Maintenance of Jointly-Owned Program
                Patents Covering Products that are the subject of such Collaboration Program.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">52</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb40954a6e3b64bfdb79520cb9b32a119">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.2.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Other Matters Pertaining to Prosecution and Maintenance of Patents</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zdc45872a90e94180933c773945f92cf4">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will keep Biogen reasonably informed through the Joint Patent Committee (or directly, if the Joint Patent Committee has been disbanded) as to material developments with respect to the Prosecution and Maintenance of (i) those Ionis
              Core Technology Patents and Ionis Manufacturing and Analytical Patents that Cover any Development Candidate or Product and (ii) the Ionis Product-Specific Patents and Jointly-Owned Program Patents, in each case ((i) and (ii)), for which Ionis
              has the responsibility to Prosecute and Maintain pursuant to <u>Section 7.2.2</u>, <u>Section 7.2.3</u> or this <u>Section 7.2.4</u>, including by providing copies of material data as it arises. Ionis will timely provide Biogen the timely
              opportunity to have reasonable input into the strategic aspects of such Prosecution and Maintenance, including the countries in which such Patent Rights are filed, and will consider Biogen&#8217;s input with respect to such strategic aspects in
              good faith but which will not be binding on Ionis. Additionally, Ionis will promptly provide to Biogen drafts of all patent-related filings and communications related to the such Patent Rights, including copies of office actions or other
              correspondence that Ionis receives from any patent office, drafts of office action responses or other correspondence that Ionis provides to any patent office, and copies and drafts of all interferences, reissues, re-examinations, oppositions
              or requests for patent term extensions, in each case, for Biogen&#8217;s review and comment, and Ionis will consider in good faith any reasonable comments timely provided by Biogen with respect to such draft filings and communications.</div>
          </td>
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    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd2ffea9db42b4e9c96d3179a8b342d1b">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Following the License Effective Date with respect to a particular Collaboration Program, Biogen will keep Ionis reasonably informed through the Joint Patent Committee (or directly, if the Joint Patent Committee has been disbanded) as to
              material developments with respect to the Prosecution and Maintenance of Product-Specific Patents or Jointly-Owned Program Patents for which Biogen has the responsibility to Prosecute and Maintain pursuant to <u>Section 7.2.2</u>, <u>Section






                7.2.3</u> or this <u>Section 7.2.4</u>, including by providing copies of material data as it arises and will provide Ionis the timely opportunity to have reasonable input into the strategic aspects of such Prosecution and Maintenance,
              which input Biogen will consider in good faith but which Biogen will not be required to implement. Following the License Effective Date with respect to a particular Collaboration Program, Biogen will have final decision-making authority with
              respect to the Prosecution and Maintenance, enforcement and defense of such Product-Specific Patents or Jointly-Owned Program Patents related to such Collaboration Program, including any Proceeding related to the infringement of such Patent
              Rights and any patent term extensions related to such Patent Rights.</div>
          </td>
        </tr>

    </table>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">53</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z20017a57699c42a18c5e02eae7113272">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If Biogen elects (i) not to file and prosecute patent applications for the Jointly-Owned Program Patents or Ionis Product-Specific Patents that have been licensed or assigned to Biogen under this Agreement or the Biogen Product-Specific
              Patents (&#8220;<font style="font-weight: bold; font-style: italic;">Biogen-Prosecuted Patents</font>&#8221;) in a particular country, (ii) not to continue the Prosecution and Maintenance (including any interferences, oppositions, reissue proceedings,
              re-examinations, and patent term extensions, adjustments, and restorations) of any Biogen-Prosecuted Patent in a particular country or (iii) not to file and prosecute patent applications for the Biogen-Prosecuted Patent in a particular
              country following a written request from Ionis to file and prosecute in such country, then in each case ((i) &#8211; (iii)), Biogen will so notify Ionis promptly in writing of its intention (including a reasonably detailed rationale for doing so)
              with sufficient time to enable Ionis to meet any deadlines by which an action must be taken to establish or preserve any such Patent Right in such country; and except as set forth in <u>Section 7.2.4(d)</u>, Ionis will have the right, but
              not the obligation, to file, prosecute, maintain, enforce or otherwise pursue such Biogen-Prosecuted Patent in the applicable country at its own expense with counsel of its own choice. In such case, Biogen will cooperate with Ionis to file
              for, or continue to Prosecute and Maintain, enforce or otherwise pursue such Biogen-Prosecuted Patent in such country in Ionis&#8217; own name, but only to the extent that Biogen is not required to take any position with respect to such abandoned
              Biogen-Prosecuted Patent that would be reasonably likely to adversely affect the scope, validity or enforceability of any of the other Patent Rights being prosecuted and maintained by Biogen under this Agreement. Notwithstanding anything to
              the contrary in this Agreement, if Ionis assumes responsibility for the Prosecution and Maintenance of any such Biogen-Prosecuted Patent under this <u>Section 7.2.4(c)</u>, then Ionis will have no obligation to notify Biogen if Ionis intends
              to abandon such Biogen-Prosecuted Patent.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z015b1e9d2c554a58ad821777ee8bf93d">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Notwithstanding <u>Section 7.2.4(c)</u> above, if, after having consulted with outside counsel, Biogen reasonably determines that filing or continuing to prosecute a patent application in a particular country for a Biogen-Prosecuted
              Patent (the &#8220;<font style="font-weight: bold; font-style: italic;">Conflicting Patent Right</font>&#8221;) is reasonably likely to adversely affect the scope, validity or enforceability of a patent application or issued patent in a particular
              country for another Biogen-Prosecuted Patent (the &#8220;<font style="font-weight: bold; font-style: italic;">Superior Patent Right</font>&#8221;), in each case where both the Conflicting Patent Right and the Superior Patent Right if issued would meet
              the criteria set forth in clause (i) of <u>Section 6.6.2(a)</u>, then <font style="font-style: italic;">so long as</font> Biogen continues to Prosecute and Maintain the Superior Patent Right in accordance with this Agreement, Ionis will not
              have the right under <u>Section 7.2.4(c)</u> above to file or prosecute the Conflicting Patent Right.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">54</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc2cf4dbfe4f54812b120266bf28831e2">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If, during the Agreement Term, Ionis intends not to file or intends to abandon in any jurisdiction any Ionis Product-Specific Patent for which Ionis is responsible for Prosecution and Maintenance without first filing a continuation or
              substitution, then, if Biogen&#8217;s right to obtain a license under <u>Section 4.1.1</u> to such Ionis Product-Specific Patent has not expired or terminated, Ionis will notify Biogen of such intention at least [***] days before such Patent Right
              will become abandoned, and Biogen will have the right, but not the obligation, to assume responsibility and final decision-making authority for the Prosecution and Maintenance thereof at its own expense (subject to <u>Section 7.3.1</u>) with
              counsel of its own choice.&#160; Notwithstanding anything to the contrary in this Agreement, if Biogen assumes responsibility for the Prosecution and Maintenance of any such Ionis Product-Specific Patent under this <u>Section 7.2.4(e)</u>, then
              Biogen will have no obligation to notify Ionis if Biogen intends to abandon such Ionis Product-Specific Patent.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z63e3174a19244d5fa80b6b256b016076">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(f)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The Parties, through the Joint Patent Committee (or directly, if the Joint Patent Committee has been disbanded), will cooperate in good faith to determine if and when any divisional or continuation applications will be filed with respect
              to any Program Patents or Product-Specific Patents, and where a divisional or continuation patent application filing would be practical and reasonable, following which determination such a divisional or continuation filing will be made.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z85cb7c5f4a4f4b109dc79845c9eadf8f">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(g)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If the Party responsible for Prosecution and Maintenance of a Jointly-Owned Program Patent pursuant to <u>Section 7.2.3</u> intends to abandon such Jointly-Owned Program Patent without first filing a continuation or substitution, then
              such Party will notify the other Party of such intention at least [***] days before such Jointly-Owned Program Patent will become abandoned, and such other Party will have the right, but not the obligation, to assume responsibility and final
              decision-making authority for the Prosecution and Maintenance thereof at its own expense (subject to <u>Section 7.3.1</u>) with counsel of its own choice, in which case the abandoning Party will, and will cause its Affiliates to, assign to
              the other Party (or, if such assignment is not possible, grant a fully-paid exclusive license in) all of their rights, title and interests in and to such Jointly-Owned Program Patents. If a Party assumes responsibility for the Prosecution and
              Maintenance of any such Jointly-Owned Program Patents under this <u>Section 7.2.4(g)</u>, such Party will have no obligation to notify the other Party of any intention of such Party to abandon such Jointly-Owned Program Patents.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9169e9f7ad944499b87e31a6d2b20888">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(h)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>In addition, the Parties will consult, through the Joint Patent Committee (or directly, if the Joint Patent Committee has been disbanded), and take into consideration the comments of the other Party for all matters relating to
              interferences, reissues, re-examinations and oppositions with respect to those Patent Rights in which such other Party (i) has an ownership interest, (ii) has received a license thereunder in accordance with this Agreement, or (iii) may in
              the future, in accordance with this Agreement, obtain a license or sublicense thereunder.</div>
          </td>
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    </table>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb451c683a8784f49b57a42b1b05f0470">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126764"></a><a name="z_Toc74129733"></a><a name="z_Toc74160286"></a><font style="font-weight: bold;">7.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Patent Costs</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4e318fe7b3114d9498d18323d93e1ca5">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.3.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Jointly-Owned Program Patents</u></font><font style="font-size: 10pt;">.&#160; Unless the Parties agree otherwise, Ionis and Biogen will share equally the Patent
                Costs associated with the Prosecution and Maintenance of Jointly-Owned Program Patents; <font style="font-style: italic;">provided </font>that either Party may decline to pay its share of costs for filing, prosecuting and maintaining any
                Jointly-Owned Program Patents in a particular country or particular countries, in which case the declining Party will, and will cause its Affiliates to, assign to the other Party (or, if such assignment is not possible, grant a fully-paid
                exclusive license in) all of their rights, title and interests in and to such Jointly-Owned Program Patents.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd687140d53274309bc6839ffb2bf66f2">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.3.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Licensed Patents and Biogen Patents</u></font><font style="font-size: 10pt;">.&#160; Except as set forth in <u>Section 7.3.1</u>, each Party will be responsible for
                all Patent Costs incurred by such Party prior to and after the Effective Date in all countries in the Prosecution and Maintenance of Patent Rights for which such Party is responsible under <u>Section 7.2</u>; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that after the License Effective Date for a Collaboration Program, Biogen will be solely responsible for Patent Costs arising from the Prosecution and Maintenance
                of the Ionis Product-Specific Patents related to such Collaboration Program.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd47c2127712a4d528753d23bec93642b">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126765"></a><a name="z_Toc74129734"></a><a name="z_Toc74160287"></a><font style="font-weight: bold;">7.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Defense of Claims Brought by Third Parties</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z927ea418ce3245bab7b0b4540b663bd1">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.4.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If a Third Party initiates a Proceeding claiming a Patent Right owned by or licensed to such Third Party is infringed by the Development, Manufacture or Commercialization of a Product, (a) Ionis will have the first right, but not the
              obligation, to defend against any such Proceeding initiated prior to the License Effective Date for the applicable Collaboration Program at its sole cost and expense and (b) Biogen will have the first right, but not the obligation, to defend
              against any such Proceeding initiated after the License Effective Date for the applicable Collaboration Program at its sole cost and expense. If the Party having the first right to defend against such Proceeding (the &#8220;<font style="font-weight: bold; font-style: italic;">Lead Party</font>&#8221;) elects to defend against such Proceeding, then the Lead Party will have the sole right to direct the defense and to elect whether to settle such claim (but only with the
              prior written consent of the other Party, not to be unreasonably withheld, conditioned or delayed). The other Party will reasonably assist the Lead Party in defending such Proceeding and cooperate in any such litigation at the request and
              expense of the Lead Party. The Lead Party will provide the other Party with prompt written notice of the commencement of any such Proceeding that is of the type described in this <u>Section 7.4</u>, and the Lead Party will keep the other
              Party apprised of the progress of such Proceeding.&#160; Notwithstanding the foregoing, (i) if Ionis is the Lead Party, then Ionis will cooperate in good faith with Biogen on the institution, prosecution and control of such Proceeding, will
              provide Biogen with copies of filings, submissions and communications related to such Proceeding in sufficient time to allow Biogen to review and comment thereon, and will incorporate any reasonable comments timely provided by Biogen with
              respect to such filings, submissions and communications and (ii) if Biogen is the Lead Party and Ionis is a named party, then Biogen will cooperate in good faith with Ionis on the institution, prosecution and control of such Proceeding and
              will provide Ionis the timely opportunity to have reasonable input into the strategic aspects of such Proceeding, which Biogen will consider in good faith but which Biogen will not be required to implement. If the Lead Party elects not to
              defend against a Proceeding, then the Lead Party will so notify the other Party in writing within [***] days after the Lead Party first receives written notice of the initiation of such Proceeding, and the other Party (the &#8220;<font style="font-weight: bold; font-style: italic;">Step-In Party</font>&#8221;) will have the right, but not the obligation, to defend against such Proceeding at its sole cost and expense and thereafter the Step-In Party will have the sole right to
              direct the defense thereof, including the right to settle such claim. In any event, the Party not defending such Proceeding will reasonably assist the other Party and cooperate in any such litigation at the request and expense of the Party
              defending such Proceeding.&#160; Each Party may at its own expense and with its own counsel join any defense initiated or directed by the other Party under this <u>Section 7.4</u>.&#160; Each Party will provide the other Party with prompt written
              notice of the commencement of any such Proceeding under this <u>Section 7.4</u>, and such Party will promptly furnish the other Party with a copy of each communication relating to the alleged infringement that is received by such Party.</div>
          </td>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zecd539c805444fdd8d659234a39a050e">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.4.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Discontinued Product</u></font><font style="font-size: 10pt;">.&#160; If a Third Party initiates a Proceeding claiming that any Patent Right or Know-How owned by or
                licensed to such Third Party is infringed by the Development, Manufacture or Commercialization of a Discontinued Product, then Ionis will have the first right, but not the obligation, to defend against and settle such Proceeding at its sole
                cost and expense. Biogen will reasonably assist Ionis in defending such Proceeding and cooperate in any such litigation at the request and expense of Ionis.&#160; Each Party may at its own expense and with its own counsel join any defense
                directed by the other Party. Ionis will provide Biogen with prompt written notice of the commencement of any such Proceeding, or of any allegation of infringement of which Ionis becomes aware and that is of the type described in this <u>Section






                  7.4.2</u>, and Ionis will promptly furnish Biogen with a copy of each communication relating to the alleged infringement received by Ionis.</font></div>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z1edb24847724491abc6fa279e453ae4a">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.4.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Interplay Between Enforcement of IP and Defense of Third Party Claims</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding the provisions of <u>Section
                  7.4.1</u> and <u>Section 7.4.2</u>, to the extent that a Party&#8217;s defense against a Third Party claim of infringement under this <u>Section 7.4</u> involves (a) the enforcement of the other Party&#8217;s Know-How or Patent Rights (<u>e.g.</u>,
                a counterclaim of infringement), or (b) the defense of an invalidity claim with respect to such other Party&#8217;s Know-How or Patent Rights, then, in each case, the general concepts of <u>Section 7.5</u> will apply to the enforcement of such
                other Party&#8217;s Know-How or Patent Rights or the defense of such invalidity claim (<u>i.e.</u>, each Party has the right to enforce its own intellectual property, except that the relevant Commercializing Party will have the initial right, to
                the extent provided in <u>Section 7.5</u>, to enforce such Know-How or Patent Rights or defend such invalidity claim, and the other Party will have a step-in right, to the extent provided in <u>Section 7.5</u>, to enforce such Know-How or
                Patent Rights or defend such invalidity claim).</font></div>
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      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">57</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z840a6a695225404186651a832ebd69cf">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126766"></a><a name="z_Toc74129735"></a><a name="z_Toc74160288"></a><font style="font-weight: bold;">7.5.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Enforcement of Patents against Competitive Infringement</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z6db75f79b1de42f5b23e243d5de9fe76">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.5.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Duty to Notify of Competitive Infringement</u></font><font style="font-size: 10pt;">.&#160; If either Party learns of an infringement, unauthorized use,
                misappropriation or threatened infringement by a Third Party to which such Party does not owe any conflicting obligation of confidentiality with respect to any Licensed Patents by reason of the development, manufacture, use or
                commercialization of a product directed against the RNA that encodes a Collaboration Target in the Field (&#8220;<font style="font-weight: bold; font-style: italic;">Competitive</font><font style="font-style: italic;">&#160;</font><font style="font-weight: bold; font-style: italic;">Infringement</font>&#8221;), such Party will promptly notify the other Party in writing and will provide such other Party with available evidence of such Competitive Infringement; <font style="font-style: italic;">provided, however</font>, that for cases of Competitive Infringement under <u>Section 7.5.8</u> below, such written notice will be given within 10 days.</font></div>
          </td>
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    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z82de9f57b3b2441ab84d69c67884c662">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.5.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Prior to License Grant</u></font><font style="font-size: 10pt;">.&#160; For any Competitive Infringement with respect to a Product occurring after the Effective Date
                but before the License Effective Date for the Collaboration Program of which such Product is the subject, Ionis will have the first right, but not the obligation, to institute, prosecute, and control a Proceeding with respect thereto, by
                counsel of its own choice, and Biogen will have the right to be represented in that action by counsel of its own choice at its own expense. Ionis will provide Biogen with prompt written notice of the commencement of any such Proceeding, and
                Ionis will keep Biogen apprised of the progress of such Proceeding. Additionally, Ionis will provide Biogen with copies of filings, submissions and communications related to such Proceeding in sufficient time to allow Biogen to review and
                comment thereon, and will consider in good faith any reasonable comments timely provided by Biogen with respect to such filings, submissions and communications. Subject to the preceding sentence, Ionis will have the sole right to control
                such litigation. If Ionis fails to initiate a Proceeding within a period of 90 days after receipt of written notice of such Competitive Infringement (subject to a 90 day extension to conclude negotiations, which extension will apply only in
                the event that Ionis has commenced good faith negotiations with an alleged infringer for elimination of such Competitive Infringement within such 90 day period), Biogen will have the right to initiate and control a Proceeding with respect
                to such Competitive Infringement by counsel of its own choice; <font style="font-style: italic;">provided </font>that Ionis will have the right to be represented in any such action by counsel of its own choice at its own expense.
                Notwithstanding the foregoing, Ionis will at all times have the sole right to institute, prosecute, and control any Proceeding under this <u>Section 7.5.2</u> to the extent involving any Ionis Core Technology Patents or Ionis Manufacturing
                and Analytical Patents.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z24f352701ad24228a166cc91c6798944">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.5.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen Enforcement Rights</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding <u>Section 7.5.2</u> and <u>Section 7.5.4</u>, in the case where a Third
                Party is infringing an Ionis Core Technology Patent and a Patent Right Controlled by Biogen by reason of the development, manufacture, use or commercialization of a product directed against the RNA that encodes a High Interest Target or a
                Collaboration Target in the Field, then the Party with knowledge of such infringement will promptly notify the other Party in writing. If Biogen also enforces any Patent Rights Controlled by Biogen (including any Ionis Product-Specific
                Patents assigned by Ionis to Biogen under this Agreement) against such infringement, then Biogen may elect to have Ionis and Biogen enforce the applicable Ionis Core Technology Patents and the applicable Patent Rights Controlled by Biogen
                against such infringing Third Party.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z739a3fd290b2464098c4e55dcf084343">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.5.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Following License Grant</u></font><font style="font-size: 10pt;">.&#160; For any Competitive Infringement with respect to a particular Product (except for a
                Discontinued Product) occurring after the License Effective Date for the Collaboration Program of which such Product is the subject, so long as part of such Proceeding Biogen also enforces any Patent Rights Controlled by Biogen (including
                any Ionis Product-Specific Patents assigned by Ionis to Biogen under this Agreement) being infringed that Cover the Product, then Biogen will have the first right, but not the obligation, to institute, prosecute, and control a Proceeding
                with respect thereto by counsel of its own choice at its own expense, and Ionis will have the right, at its own expense, to be represented in that action by counsel of its own choice, <font style="font-style: italic;">however,</font>
                Biogen will have the right to control such litigation. If Biogen fails to initiate a Proceeding within a period of 90 days after receipt of written notice of such Competitive Infringement (subject to a 90 day extension to conclude
                negotiations, if Biogen has commenced good faith negotiations with an alleged infringer for elimination of such Competitive Infringement within such 90 day period), Ionis will have the right to initiate and control a Proceeding with respect
                to such Competitive Infringement by counsel of its own choice, and Biogen will have the right to be represented in any such action by counsel of its own choice at its own expense. Notwithstanding the foregoing, Ionis will at all times have
                the sole right to institute, prosecute, and control any Proceeding under this <u>Section 7.5.4</u> to the extent involving any Ionis Core Technology Patents or Ionis Manufacturing and Analytical Patents.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z6789355904d643af82be5e211c946695">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.5.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Joinder</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb33e229fc0b447a0b3994c3944b17264">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If a Party initiates a Proceeding in accordance with this <u>Section 7.5</u>, then the other Party agrees to be joined as a party plaintiff where necessary and to give the first Party reasonable assistance and authority to file and
              prosecute the Proceeding. Subject to <u>Section 7.5.6</u>, the costs and expenses of each Party incurred pursuant to this <u>Section 7.5.5(a)</u> will be borne by the Party initiating such Proceeding.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7a7634bc62024012a012b8eb787e5c62">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If one Party initiates a Proceeding in accordance with this <u>Section 7.5.5</u>, then the other Party may join such Proceeding as a party plaintiff where necessary for such other Party to seek lost profits with respect to such
              infringement or where such Proceeding relates to Jointly-Owned Program Patents.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2a434ef8f00c49f6ae394a3f62193cc3">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.5.6.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Share of Recoveries</u></font><font style="font-size: 10pt;">.&#160; Any damages or other monetary awards recovered with respect to a Proceeding brought pursuant to
                this <u>Section 7.5</u> will be shared as follows:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">59</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
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      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zaade5248b7e040b5bb81f24f2c77e699">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>the amount of such recovery will first be applied to the Parties&#8217; reasonable out-of-pocket costs incurred in connection with such Proceeding (which amounts will be allocated <font style="font-style: italic;">pro rata</font> if
              insufficient to cover the totality of such expenses); then</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9b6d83fc18364b0fa45cb70a49ff83d8">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>any remaining proceeds constituting direct or actual damages for acts of infringement occurring prior to the License Effective Date for the Collaboration Program of which the applicable Product is the subject will be (i) [***]; or (ii)
              [***]; then</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8e393147b3724b728029b2aee27d3981">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>any remaining proceeds constituting direct or actual damages for acts of infringement occurring after the License Effective Date for the Collaboration Program of which the applicable Product is the subject [***]; then</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za835ae9ed3c84f4f99df218e1c7831b7">

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          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>any remaining proceeds constituting punitive or treble damages will be allocated between the Parties as follows: the Party initiating the Proceeding will receive and retain [***]% of such proceeds and the other Party will receive and
              retain [***]% of such proceeds.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z71d26dbe466349a2ae321cd117b2996d">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.5.7.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Settlement</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding anything to the contrary under this <u>ARTICLE 7</u>, neither Party may enter a
                settlement, consent judgment or other voluntary final disposition of a suit under this <u>ARTICLE 7</u> that disclaims, limits the scope of, admits the invalidity or unenforceability of, or grants a license, covenant not to sue or similar
                immunity under a Patent Right Controlled by the other Party without first obtaining the written consent of the Party that Controls the relevant Patent Right.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z33d2094ebaa64cd5bb31701dd372fc83">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.5.8.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>35 USC &#167;271(e)(2) Infringement</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding anything to the contrary in this <u>Section 7.5</u>, solely with
                respect to Licensed Patents that have not been assigned to Biogen under this Agreement for a Competitive Infringement under 35 USC &#167;271(e)(2), the time period set forth in <u>Section 7.5.2</u> during which a Party will have the initial
                right to bring a Proceeding will be shortened to a total of 25 days, so that, to the extent the other Party has the right, pursuant to <u>Section 7.5.2 </u>to initiate a Proceeding if the first Party does not initiate a Proceeding, such
                other Party will have such right if the first Party does not initiate a Proceeding within 25 days after such first Party&#8217;s receipt of written notice of such Competitive Infringement.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z553010d3eb42434e8dd103f3c68df953">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126767"></a><a name="z_Toc74129736"></a><a name="z_Toc74160289"></a><font style="font-weight: bold;">7.6.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Other Infringement</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z1d5ca8551dff4bd08270074824e883e1">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.6.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Jointly-Owned Program Patents</u></font><font style="font-size: 10pt;">.&#160; With respect to the infringement of a Jointly-Owned Program Patent which is not a
                Competitive Infringement, the Parties will cooperate in good faith to bring suit together against such infringing party or the Parties may decide to permit one Party to solely bring suit. Any damages or other monetary awards recovered with
                respect to a Proceeding brought pursuant to this <u>Section 7.6.1</u> will be shared as follows: (a) the amount of such recovery will first be applied to the Parties&#8217; reasonable out-of-pocket costs incurred in connection with such
                Proceeding (which amounts will be allocated <font style="font-style: italic;">pro rata</font> if insufficient to cover the totality of such expenses); (b) any remaining proceeds constituting direct damages will be [***<u>]</u>, and (c) any
                remaining proceeds constituting punitive or treble damages will be allocated as follows: (i) if the Parties jointly initiate a Proceeding pursuant to this <u>Section 7.6.1</u>, [***]; and (ii) if only one Party initiates the Proceeding
                pursuant to this <u>Section 7.6.1</u>, such Party will receive [***]% of such proceeds and the other Party will receive [***]% of such proceeds.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">60</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
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      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z159c7ff2936e49df8b5914946257c9d3">

        <tr>
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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.6.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Patents Solely Owned by Ionis</u></font><font style="font-size: 10pt;">.&#160; Ionis will retain all rights to pursue an infringement of any Patent Right solely owned
                by Ionis which is other than a Competitive Infringement and Ionis will retain all recoveries with respect thereto.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z36e41e8612414db59567e3ba24e71025">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.6.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Patents Solely Owned by Biogen</u></font><font style="font-size: 10pt;">.&#160; Biogen will retain all rights to pursue an infringement of any Patent Right solely
                owned by Biogen which is other than a Competitive Infringement and Biogen will retain all recoveries with respect thereto.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8274eca3e700468495e5fd8b869a5301">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126768"></a><a name="z_Toc74129737"></a><a name="z_Toc74160290"></a><font style="font-weight: bold;">7.7.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Patent Listing</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb4b40e90855c4c3d92cf627c52147faa">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.7.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Obligations</u></font><font style="font-size: 10pt;">.&#160; Biogen will promptly, accurately and completely list, with the applicable Regulatory Authorities
                during the Agreement Term, all applicable Patent Rights that Cover a Product.&#160; Prior to such listings, the Parties will meet, through the Joint Patent Committee, to evaluate and identify all applicable Patent Rights, and Biogen will have
                the right to review, where reasonable, original records relating to any invention for which Patent Rights are being considered by the Joint Patent Committee for any such listing. Notwithstanding the preceding sentence, Biogen will retain
                final decision-making authority as to the listing of all applicable Patent Rights for the Product that are not Ionis Core Technology Patents or Ionis Manufacturing and Analytical Patents, regardless of which Party owns such Patent Rights.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2374afc3e2684e42904e903105ab587a">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">7.7.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis&#8217; Obligations</u></font><font style="font-size: 10pt;">.&#160; Ionis will promptly, accurately and completely list, with the applicable Regulatory Authorities
                during the Agreement Term, all applicable Patent Rights that Cover a Discontinued Product. Prior to such listings, the Parties will meet, through the Joint Patent Committee, to evaluate and identify all applicable Patent Rights, and Ionis
                will have the right to review, where reasonable, original records relating to any invention for which Patent Rights are being considered by the Joint Patent Committee for any such listing. Notwithstanding the preceding sentence, Ionis will
                retain final decision-making authority as to the listing of all applicable Patent Rights for such Discontinued Products, as applicable, regardless of which Party owns such Patent Rights.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zfff63cc09f11465abc4206773509e610">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126769"></a><a name="z_Toc74129738"></a><a name="z_Toc74160291"></a><font style="font-weight: bold;">7.8.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Joint Research Agreement under the Leahy-Smith America Invents Act</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding anything to the contrary in this <u>ARTICLE






                  7</u>, neither Party will have the right to make an election under 35 U.S.C. &#167; 102(c) of the Leahy-Smith America Invents Act when exercising its rights under this <u>ARTICLE 7</u> without the prior written consent of the other Party,
                which will not be unreasonably withheld, conditioned or delayed.&#160; With respect to any such permitted election, each Party will use reasonable efforts to cooperate and coordinate their activities with the other Party with respect to any
                submissions, filings or other activities in support thereof. The Parties acknowledge and agree that this Agreement is a &#8220;<font style="font-style: italic;">joint research agreement</font>&#8221; as defined in 35 U.S.C. &#167; 100(h).</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">61</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zaeea90e4278141a7ac20a1f0a21b17d4">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126770"></a><a name="z_Toc74129739"></a><a name="z_Toc74160292"></a><font style="font-weight: bold;">7.9.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Obligations to Third Parties</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding any of the foregoing, each Party&#8217;s rights and obligations with respect
                to Licensed Technology under this <u>ARTICLE 7</u> will be subject to the Third Party rights and obligations under any (a) New Third Party License, the restrictions and obligations of which Biogen has agreed to under <u>Section 6.8.2,</u>
                (b) Prior Agreements and (c) Ionis In-License Agreements; <font style="font-style: italic;">provided</font>, <font style="font-style: italic;">however</font>, that, to the extent that Ionis has a non-transferable right to prosecute,
                maintain or enforce any Patent Rights licensed to Biogen hereunder and this Agreement purports to grant any such rights to Biogen, Ionis will act in such regard with respect to such Patent Rights at Biogen&#8217;s direction.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4d7ed28d826744bba504538447538f68">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126771"></a><a name="z_Toc74129740"></a><a name="z_Toc74160293"></a><font style="font-weight: bold;">7.10.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Additional Right and Exceptions</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding any provision of this <u>ARTICLE 7</u>, Ionis retains the sole right
                to Prosecute and Maintain Ionis Core Technology Patents and Ionis Manufacturing and Analytical Patents during the Agreement Term and to control any enforcement of Ionis Core Technology Patents and Ionis Manufacturing and Analytical Patents,
                and will take the lead on such enforcement solely to the extent that the scope or validity of any Patent Rights Controlled by Ionis and Covering the Ionis Core Technology Patents or Ionis Manufacturing and Analytical Patents is at risk.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2d2a70912e854e548117d301a3cccec3">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126772"></a><a name="z_Toc74129741"></a><a name="z_Toc74160294"></a><font style="font-weight: bold;">7.11.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Patent Term Extension</u></font><font style="font-size: 10pt;">.&#160; The Parties will cooperate with each other in gaining patent term extension wherever applicable
                to the Product. After the License Effective Date for the Collaboration Program of which such Product is the subject, Biogen will have the sole right to determine which relevant patents will be extended.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 8</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126773"></a><a name="z_Toc74129742"></a><a name="z_Toc74160295"></a>REPRESENTATIONS AND WARRANTIES</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zcd55304a07c641d6a9f9b823306806d7">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126774"></a><a name="z_Toc74129743"></a><a name="z_Toc74160296"></a><font style="font-weight: bold;">8.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Representations and Warranties of Both Parties</u></font><font style="font-size: 10pt;">.&#160; Each Party hereby represents and warrants to the other Party, as of
                the Amendment Date, that:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc8fcbb9e12194c67b5b5091d78d0b592">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.1.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>such Party is duly organized, validly existing and in good standing under the Laws of the jurisdiction of its incorporation or organization and has full corporate power and authority to enter into this Agreement and to carry out the
              provisions hereof;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z064bf64ac4cc493ca9d6bdb3c58154d8">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.1.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>such Party has taken all necessary action on its part to authorize the execution and delivery of this Agreement and the performance of its obligations hereunder;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd3f9607ca2e24037a6742d4805811874">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.1.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>this Agreement has been duly executed and delivered on behalf of such Party, and constitutes a legal, valid and binding obligation, enforceable against it in accordance with the terms hereof;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z27020fd4546d438a8d96dc5fec9c193a">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.1.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>the execution, delivery and performance of this Agreement by such Party will not constitute a default under or conflict with any agreement, instrument or understanding, oral or written, to which it is a party or by which it is bound, or
              violate any Law or regulation of any court, governmental body or administrative or other agency having jurisdiction over such Party;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">62</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="ze4c01c25b57041ab886fcba12cf6f562">

        <tr>
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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.1.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>no government authorization, consent, approval, license, exemption of or filing or registration with any court or governmental department, commission, board, bureau, agency or instrumentality, domestic or foreign, under any Applicable
              Laws, rules or regulations currently in effect, is or will be necessary for, or in connection with, the transaction contemplated by this Agreement or any other agreement or instrument executed in connection herewith, or for the performance by
              it of its obligations under this Agreement and such other agreements; and</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf533137d47da439e8b755f8e230863df">

        <tr>
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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.1.6.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>it has not employed (and, to the best of its knowledge, has not used a contractor or consultant that has employed) and in the future will not employ (or, to the best of its knowledge, use any contractor or consultant that employs (<font style="font-style: italic;">provided</font> that such Party may reasonably rely on a representation made by such contractor or consultant)) any Person debarred by the FDA (or subject to a similar sanction of EMA or foreign equivalent), or
              any Person which is the subject of an FDA debarment investigation or proceeding (or similar proceeding of EMA or foreign equivalent), in the conduct of the Pre-Clinical Studies or Clinical Studies of the Product and its activities under each
              Collaboration Program.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc40e67bbe6804dc9a68ad6bf1170c3d3">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126775"></a><a name="z_Toc74129744"></a><a name="z_Toc74160297"></a><font style="font-weight: bold;">8.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Representations and Warranties of Ionis</u></font><font style="font-size: 10pt;">.&#160; Ionis hereby represents and warrants to Biogen, as of the Effective Date,
                that:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z860b4825d2a542a398c71e33fd877d6b">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.2.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>To the best of its knowledge and belief, there are no additional licenses (beyond those that would be granted to Biogen under <u>Section 4.1.1</u> upon the exercise of the Option for a Product arising under the Collaboration Programs)
              under any intellectual property owned or Controlled by Ionis or its Affiliates as of the Effective Date that would be required in order for Biogen to further Develop and Commercialize a Product.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z23003d9a2fc24921bfc8c96a75158289">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.2.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>The Licensed Technology existing as of the Effective Date constitutes all of the Patent Rights and Know-How Controlled by Ionis as of the Effective Date that are necessary to Develop, Manufacture or Commercialize Compounds contemplated
              under the Collaboration Programs in the Field.&#160; Ionis has not previously assigned, transferred, conveyed or otherwise encumbered its rights, title and interests in the Licensed Technology in a manner that conflicts with any rights granted to
              Biogen hereunder.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z570354e3f76a4a8fbd0675e7788ebfdf">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.2.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Neither Ionis nor its Affiliates owns or Controls any Patent Rights or Know-How covering formulation or delivery technology as of the Effective Date that would be useful or necessary in order for Biogen to further Develop or Commercialize
              Compounds contemplated under the Collaboration Programs.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zda15556e093144c282e761451918b8ad">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.2.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 8.2.4(a)</u></font><font style="font-size: 10pt;">, <font style="font-variant: small-caps;"><u>Schedule</u></font><u>
                  8.2.4(b)</u> and <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 8.2.4(c)</u> set forth true, correct and complete lists of all Ionis Core Technology Patents, and Ionis Manufacturing and Analytical Patents that apply to
                the Compounds contemplated under the Collaboration Programs as of the Effective Date (the &#8220;<font style="font-weight: bold; font-style: italic;">Ionis Platform Technology</font>&#8221;), respectively, and indicates whether each such Patent Right
                is owned by Ionis or licensed by Ionis from a Third Party and if so, identifies the licensor or sublicensor from which the Patent Right is licensed.&#160; Ionis Controls such Patent Rights existing as of the Effective Date and is entitled to
                grant all rights and licenses (or sublicenses, as the case may be) under such Patent Rights it purports to grant to Biogen under this Agreement.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">63</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc3b51bab769844b792d06bdb4583f391">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.2.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>There are no claims, judgments or settlements against or owed by Ionis or its Affiliates or pending against Ionis or, to the best of Ionis&#8217; knowledge, threatened against Ionis, in each case relating to the Ionis Platform Technology, Ionis
              Manufacturing and Analytical Know-How, Ionis Know-How, Collaboration Targets or High Interest Targets that could impact activities under this Agreement. To the best of Ionis&#8217; knowledge, there are no claims, judgments or settlements against or
              owed by any Third Party that is party to a Prior Agreement, or pending or threatened claims or litigation against any Third Party that is party to a Prior Agreement, in each case relating to the Ionis Platform Technology, Ionis Manufacturing
              and Analytical Know-How, Ionis Know-How, Collaboration Targets or High Interest Targets that would impact activities under this Agreement.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z886a577b5bd74de0ac66c86ffe8437d9">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.2.6.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>At the Effective Date (a) there is no fact or circumstance known by Ionis that would cause Ionis to reasonably conclude that any Ionis Core Technology Patent or Ionis Manufacturing and Analytical Patent is invalid or un-enforceable, (b)
              there is no fact or circumstance known by Ionis that would cause Ionis to reasonably conclude the inventorship of each Ionis Core Technology Patent or Ionis Manufacturing and Analytical Patent is not properly identified on each patent, and
              (c) all official fees, maintenance fees and annuities for the Ionis Core Technology Patent or Ionis Manufacturing and Analytical Patent have been paid and all administrative procedures with governmental agencies have been completed.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zec7a1a7de4c54087a66015eaa56532de">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.2.7.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis has set forth on<font style="font-variant: small-caps;"><u> Schedule</u></font><u> 6.8.1</u> or in a separate written agreement with Biogen true, correct and complete lists of the agreements with Third Party licensors or sellers
              pursuant to which Ionis has licensed or acquired the Licensed Technology Controlled by Ionis as of the Effective Date licensed to Biogen under <u>Section 4.1.1</u> that is necessary or useful to conduct the research, Development, Manufacture
              or Commercialization of any High Interest Target listed on the High Interest Target List as of the Effective Date and any Compounds as contemplated under the Collaboration Program targeting [***].&#160; All Ionis In-License Agreements are in full
              force and effect and have not been modified or amended. Neither Ionis nor, to the best knowledge of Ionis, the Third Party licensor in an Ionis In-License Agreement is in default with respect to a material obligation under such Ionis
              In-License Agreement, and neither such party has claimed or has grounds upon which to claim that the other party is in default with respect to a material obligation under, any Ionis In-License Agreement.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z41a1a715f8f54d4d969c41beafbb5a95">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.2.8.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 8.2.8</u></font><font style="font-size: 10pt;"> is a complete and accurate list of all agreements
                that create Third Party Obligations with respect to the Ionis Core Technology Patents and Ionis Manufacturing and Analytical Patents that affect the rights granted by Ionis to Biogen under this Agreement.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z18ea2458b6304bf18c78705935f41845">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126776"></a><a name="z_Toc74129745"></a><a name="z_Toc74160298"></a><font style="font-weight: bold;">8.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis Covenants</u></font><font style="font-size: 10pt;">.&#160; Ionis hereby covenants to Biogen that, except as expressly permitted under this Agreement:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">64</font></div>
      <div style="page-break-after:always;" id="DSPFPageBreak">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2731e940212843068cceb5e529dceb63">

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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.3.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will promptly amend <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 8.2.4(a)</u>, <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 8.2.4(b)</u> and <font style="font-variant: small-caps;"><u>Schedule</u></font><u>
                8.2.4(c)</u><font style="color: rgb(0, 0, 0);"> and submit such amended </font>Schedules to Biogen if Ionis <font style="color: rgb(0, 0, 0);">becomes aware that any </font>Ionis Core Technology Patents<font style="color: rgb(0, 0, 0);">,
              </font>Ionis Manufacturing <font style="color: rgb(0, 0, 0);">and Analytical Patents or </font>Ionis Product-Specific Patents <font style="color: rgb(0, 0, 0);">are not properly identified on such Schedule.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbd853d83af364e23a3fdadf4b28ceba3">

        <tr>
          <td style="width: 36pt;"><br>
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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.3.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>during the Agreement Term, Ionis will maintain and not breach any Ionis In-License Agreements and any agreements with Third Parties entered into after the Effective Date (&#8220;<font style="font-weight: bold; font-style: italic;">New Third
                Party Licenses</font>&#8221;) that provide a grant of rights from such Third Party to Ionis that are Controlled by Ionis and are licensed or may become subject to a license from Ionis to Biogen for the Development Candidate under this Agreement;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z00ef824bc11c441ba6a80af8ee8e8c23">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.3.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will promptly notify Biogen of any material breach by Ionis or a Third Party of any New Third Party License, and in the event of a breach by Ionis, will permit Biogen to cure such breach on Ionis&#8217; behalf upon Biogen&#8217;s request;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z25530a28c67b4fbbb09c2c5289c6834b">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.3.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will not amend, modify or terminate any Ionis In-License Agreement or New Third Party License in a manner that would adversely affect Biogen&#8217;s rights hereunder without first obtaining Biogen&#8217;s written consent, which consent may be
              withheld in Biogen&#8217;s sole discretion;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbcd39144a64c468da5273a49fddeae67">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.3.5.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will not enter into any new agreement or other obligation with any Third Party, or amend an existing agreement with a Third Party, in each case that restricts, limits or encumbers the rights granted to Biogen under this Agreement;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z4603fae07c2e44bbaef5fa4ab38f8dd6">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.3.6.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>Ionis will cause its Affiliates to comply with the terms of <u>Section 2.1</u> and will not permit any Affiliates to conduct any activities that Ionis is prohibited from conducting under <u>Section 2.1</u>;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8ea56ba4540f424c9daa24f5b63a3eba">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.3.7.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>all employees and contractors of Ionis performing Development activities hereunder on behalf of Ionis will be obligated to assign all rights, title and interests in and to any inventions developed by them, whether or not patentable, to
              Ionis or such Affiliate, respectively, as the sole owner thereof; and</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8efea55c8e2c468199ec2c9cdb30764c">

        <tr>
          <td style="width: 36pt;"><br>
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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">8.3.8.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If, after the Effective Date, Ionis becomes the owner or otherwise acquires Control of any formulation or delivery technology that would be necessary or useful in order for Biogen to further Develop, Manufacture or Commercialize a Product,
              and Biogen has exercised its Option and the license granted to Biogen under this Agreement is in effect, Ionis will make such technology available to Biogen on commercially reasonable terms.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7d6646d59660464db7f9230c08438161">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126777"></a><a name="z_Toc74129746"></a><a name="z_Toc74160299"></a><font style="font-weight: bold;">8.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt;"><u>DISCLAIMER</u></font><font style="font-size: 10pt;">.&#160; EXCEPT AS OTHERWISE EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER PARTY NOR ITS AFFILIATES MAKES ANY
                REPRESENTATION OR EXTENDS ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. BIOGEN AND IONIS UNDERSTAND THAT EACH PRODUCT IS THE SUBJECT OF ONGOING RESEARCH
                AND DEVELOPMENT AND THAT NEITHER PARTY CAN ASSURE THE SAFETY, USEFULNESS OR COMMERCIAL OR TECHNICAL VIABILITY OF EACH PRODUCT.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">65</font></div>
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        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      <div id="DSPFPageHeader" style="width: 100%;">
        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 9</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126778"></a><a name="z_Toc74129747"></a><a name="z_Toc74160300"></a>INDEMNIFICATION; INSURANCE</div>
    <div>&#160;</div>
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        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126779"></a><a name="z_Toc74129748"></a><a name="z_Toc74160301"></a><font style="font-weight: bold;">9.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Indemnification by Biogen</u></font><font style="font-size: 10pt;">.&#160; Biogen will indemnify, defend and hold harmless Ionis and its Affiliates, and its or their
                respective directors, officers, employees and agents, from and against any and all liabilities, damages, losses, costs and expenses including the reasonable fees of attorneys (collectively &#8220;<font style="font-weight: bold; font-style: italic;">Losses</font>&#8221;) arising out of or resulting from any and all Third Party suits, claims, actions, proceedings or demands (&#8220;<font style="font-weight: bold; font-style: italic;">Claims</font>&#8221;) based upon:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zcf183e0fd8ff4458b1f3bcb053b6e1d4">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.1.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>the gross negligence or willful misconduct of Biogen, its Affiliates <font style="color: rgb(0, 0, 0);">or</font> Sublicensees and its or their respective directors, officers, employees and agents, in connection with Biogen&#8217;s performance
              of its obligations or exercise of its rights under this Agreement;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc589389dd97545fba8c9de8e72732dc0">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.1.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>any breach of any representation or warranty or express covenant made by Biogen under <u>ARTICLE 8</u> or any other provision under this Agreement;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc0b65d1e34b14726a998048e85bafaa5">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.1.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>the Development or Manufacturing activities that are conducted by <font style="color: rgb(0, 0, 0);">or</font> on behalf of Biogen or its Affiliates or Sublicensees (which will exclude any Development or Manufacturing activities that are
              conducted by <font style="color: rgb(0, 0, 0);">or</font> on behalf of Ionis pursuant to this Agreement); or</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7f6197e434cf45778acdb3b9520a01e1">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.1.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>the Commercialization of a Product by or on behalf of Biogen or its Affiliates or Sublicensees;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-style: italic;">except</font><font style="font-size: 10pt;">, in each case above, to the extent such Claim arose out of or resulted from or is
        attributable to any acts or omissions of Ionis <font style="color: rgb(0, 0, 0);">or</font> its Affiliates, licensees, Sublicensees or contractors, and its or their respective directors, officers, employees and agents or other circumstance for
        which Ionis has an indemnity obligation pursuant to <u>Section 9.2</u>.</font></div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbd4137b26c6f4962b6a5970e523f4a07">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126780"></a><a name="z_Toc74129749"></a><a name="z_Toc74160302"></a><font style="font-weight: bold;">9.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Indemnification by Ionis</u></font><font style="font-size: 10pt;">.&#160; Ionis will indemnify, defend and hold harmless Biogen and its Affiliates, and its or their
                respective directors, officers, employees and agents, from and against any and all Losses arising out of or resulting from any and all Claims based upon:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z573d3c9f5b3247f5a6d0dd152152553d">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.2.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>the gross negligence or willful misconduct of Ionis, its Affiliates <font style="color: rgb(0, 0, 0);">or</font> Sublicensees <font style="color: rgb(0, 0, 0);">or</font> its or their respective directors, officers, employees and agents,
              in connection with Ionis&#8217; performance of its obligations or exercise of its rights under this Agreement;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z937014a6441b4d81af6548ec46033a1a">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.2.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>any breach of any representation or warranty or express covenant made by Ionis under <u>ARTICLE 8</u> or any other provision under this Agreement;</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb695846667c04e8e97d3cad5c145ad20">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.2.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>any Development or Manufacturing activities that are conducted by <font style="color: rgb(0, 0, 0);">or</font> on behalf of Ionis or its Affiliates or Sublicensees (which will exclude any Development or Manufacturing activities that are
              conducted by <font style="color: rgb(0, 0, 0);">or</font> on behalf of Biogen pursuant to this Agreement); or</div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">66</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7372ad4b55b94872910e56d0ff785678">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.2.4.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>any development, manufacturing or commercialization activities that are conducted by <font style="color: rgb(0, 0, 0);">or</font> on behalf of Ionis or its Affiliates or Sublicensees with respect to a Discontinued Product;</div>
          </td>
        </tr>

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    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-style: italic;">except</font><font style="font-size: 10pt;">, in each case above, to the extent such Claim arose out of or resulted from or is
        attributable to any acts or omissions of Biogen <font style="color: rgb(0, 0, 0);">or</font> its Affiliates, licensees, Sublicensees or contractors and its or their respective directors, officers, employees and agents or other circumstance for
        which Biogen has an indemnity obligation pursuant to <u>Section 9.1</u>.</font></div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2da49ea437d44172ba250f8aed92fa7f">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126781"></a><a name="z_Toc74129750"></a><a name="z_Toc74160303"></a><font style="font-weight: bold;">9.3.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Procedure</u></font><font style="font-size: 10pt;">.&#160; If a Person entitled to indemnification under <u>Section 9.1</u> or <u>Section 9.2</u> (an &#8220;<font style="font-weight: bold; font-style: italic;">Indemnitee</font>&#8221;) seeks such indemnification, such Indemnitee will (a) inform the indemnifying Party in writing of a Claim as soon as reasonably practicable after such Indemnitee receives
                notice of such Claim, (b) permit the indemnifying Party to assume direction and control of the defense of the Claim (including the sole right to settle such Claim at the sole discretion of the indemnifying Party; <font style="font-style: italic;">provided </font>that (i) such settlement or compromise does not admit any fault or negligence on the part of the Indemnitee, or impose any obligation on, or otherwise materially adversely affect, the Indemnitee or other Party
                and (ii) the indemnifying Party first obtain the written consent of the Indemnitee with respect to such settlement, which consent will not be unreasonably withheld), (c) cooperate as reasonably requested (at the expense of the indemnifying
                Party) in the defense of the Claim, and (d) undertake reasonable steps to mitigate any Losses with respect to the Claim. The provisions of <u>Section 7.4</u> will govern the procedures for responding to a Claim of infringement described
                therein. Notwithstanding anything in this Agreement to the contrary, the indemnifying Party will have no liability under <u>Section 9.1</u> or <u>Section 9.2</u>, as the case may be, for Claims settled or compromised by the Indemnitee
                without the indemnifying Party&#8217;s prior written consent.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2119b3a0926c47bfa41bcf314ab1649c">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126782"></a><a name="z_Toc74129751"></a><a name="z_Toc74160304"></a><font style="font-weight: bold;">9.4.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Insurance</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9bc111bb90714c498cbea8b5cea04bd9">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.4.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis&#8217; Insurance Obligations</u></font><font style="font-size: 10pt;">.&#160; Ionis will maintain, at its cost, reasonable insurance against liability and other risks
                associated with its activities contemplated by this Agreement; <font style="font-style: italic;">provided </font>that at a minimum, Ionis will maintain, in force from </font><font style="font-size: 10pt;">[***] days prior to enrollment
                of the first patient in a Clinical Study, a [***] insurance policy providing coverage of at least $[***] per claim and $[***] Annual aggregate. Ionis will furnish to Biogen evidence of such insurance upon request.</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zbd5b1c989f404d2691853917ef1e1e19">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">9.4.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Insurance Obligations</u></font><font style="font-size: 10pt;">.&#160; Biogen will maintain, at its cost, reasonable insurance against liability and other
                risks associated with its activities contemplated by this Agreement; <font style="font-style: italic;">provided </font>that at a minimum, Biogen will maintain, in force from </font><font style="font-size: 10pt;">[***] days prior to
                enrollment of the first patient in a Clinical Study, a [***] insurance policy providing coverage of at least $[***] per claim and $[***] Annual aggregate and, <font style="font-style: italic;">provided further</font> that such coverage is
                increased to at least $[***] at least </font><font style="font-size: 10pt;">[***] days before Biogen initiates the First Commercial Sale of a Product hereunder. Biogen will furnish to Ionis evidence of such insurance upon request.
                Notwithstanding the foregoing, Biogen may self-insure to the extent that it self-insures for its other products, but at a minimum will self-insure at levels that are consistent with levels customarily maintained against similar risks by
                similar companies in Biogen&#8217;s industry.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za9a23b6063c149d78b02b4614cf3081c">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126783"></a><a name="z_Toc74129752"></a><a name="z_Toc74160305"></a><font style="font-weight: bold;">9.5.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt;"><u>LIMITATION OF CONSEQUENTIAL DAMAGES</u></font><font style="font-size: 10pt;">.&#160; EXCEPT FOR (A) CLAIMS OF A THIRD PARTY THAT ARE SUBJECT TO INDEMNIFICATION UNDER
                THIS <u>ARTICLE 9</u>, (B) CLAIMS ARISING OUT OF A PARTY&#8217;S WILLFUL MISCONDUCT OF THIS AGREEMENT, (C) A PARTY&#8217;S BREACH OF <u>ARTICLE 2</u>, OR A BREACH OF <u>SECTION 10.4.3(a)</u> BY BIOGEN OR ITS AFFILIATES OR (D) CLAIMS ARISING OUT OF A
                PARTY&#8217;S BREACH OF ITS CONFIDENTIALITY OBLIGATIONS UNDER THIS AGREEMENT, NEITHER PARTY NOR ANY OF ITS AFFILIATES WILL BE LIABLE TO THE OTHER PARTY TO THIS AGREEMENT OR ITS AFFILIATES FOR ANY INCIDENTAL, CONSEQUENTIAL, SPECIAL, PUNITIVE OR
                OTHER INDIRECT DAMAGES OR LOST OR IMPUTED PROFITS OR ROYALTIES, LOST DATA OR COST OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, WHETHER LIABILITY IS ASSERTED IN CONTRACT, TORT (INCLUDING NEGLIGENCE AND STRICT PRODUCT LIABILITY), INDEMNITY
                OR CONTRIBUTION, AND IRRESPECTIVE OF WHETHER THAT PARTY OR ANY REPRESENTATIVE OF THAT PARTY HAS BEEN ADVISED OF, OR OTHERWISE MIGHT HAVE ANTICIPATED THE POSSIBILITY OF, ANY SUCH LOSS OR DAMAGE.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <div style="text-align: center; font-weight: bold;">ARTICLE 10</div>
    <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126784"></a><a name="z_Toc74129753"></a><a name="z_Toc74160306"></a>TERM; TERMINATION</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2bd4e7f76734414689de10e5052df15e">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126785"></a><a name="z_Toc74129754"></a><a name="z_Toc74160307"></a><font style="font-weight: bold;">10.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Agreement Term; Expiration</u></font><font style="font-size: 10pt;">.&#160; This Agreement is effective as of the Effective Date and, unless earlier terminated
                pursuant to the other provisions of this <u>ARTICLE 10</u>, will continue in full force and effect until this Agreement expires as follows:</font></div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="ze220e8be8d0a4f4487823e2747f46e2d">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.1.1.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>on a country-by-country basis, on the date of expiration of all payment obligations by the Commercializing Party under this Agreement with respect to all Products (or Discontinued Product(s)) in such country;</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z90e3fccca4cd4b40a54dc9126ab48373">

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          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.1.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>in its entirety upon the expiration of all payment obligations under this Agreement with respect to all Products (or Discontinued Products) in all countries pursuant to <u>Section 10.1.1</u>; and</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zfaeb11b52959477fbd5fc5fc1701b281">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.1.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>where every Option has expired as a result of Biogen not providing Ionis a written notice stating Biogen is exercising such Options and paying Ionis the applicable license fees under <u>Section 6.3</u> by the Option Deadline, or as a
              result of <u>Section 1.5.2(d)</u> or <u>Section 10.4.2</u>.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 36pt;">The period from the Effective Date until the date of expiration of this Agreement pursuant to this <u>Section 10.1</u> is the &#8220;<font style="font-weight: bold; font-style: italic;">Agreement Term</font>.&#8221;</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z98713bcb3e774025a87b24343dc3c0f9">

        <tr>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126786"></a><a name="z_Toc74129755"></a><a name="z_Toc74160308"></a><font style="font-weight: bold;">10.2.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination of the Agreement</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z372b3806e36f41af997b67ff31158091">

        <tr>
          <td style="width: 36pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51653097"></a><font style="font-weight: bold;">10.2.1.</font></td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Termination for Convenience</u></font><font style="font-size: 10pt;">.&#160; At any time following payment by Biogen of the upfront fee under <u>Section 6.1</u>,
                subject to <u>Section 10.4.1</u> below, Biogen will be entitled to terminate this Agreement as a whole, or terminate this Agreement in part with respect to a particular Collaboration Program, for convenience by providing 90 days written
                notice to Ionis of such termination.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z2fd0e8e35cca4949bb55f0e082705713">

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          <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.2.2.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination for Failure to Divest Competitive Product</u></font><font style="font-size: 10pt;">.&#160; If, after the acquisition by a Party of a Third Party that is
                developing or commercializing an Acquired Competitive Product or an Acquired Competitive Program, such Party does not, by the end of the Collaboration Divestiture Period, divest itself of a Competitive Product or Competitive Program, as
                applicable, or terminate the development and commercialization of such Acquired Competitive Product or activities under such Acquired Competitive Program or assign this Agreement to a Third Party that is not itself developing or
                commercializing a Competitive Product or engaged in a Competitive Program, as set forth in <u>Section 12.5.2</u>, then the non-acquiring Party may terminate this Agreement solely with respect to the Collaboration Program(s) affected
                thereby immediately upon providing written notice to the acquiring Party.</font></div>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z3c4c9ac46f58497eb92b4e49d90c8780">

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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.2.3.</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination Due to Failure to Obtain HSR Clearance</u></font><font style="font-size: 10pt;">.</font></div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z0d84508df5e84777a411c53d00cd0b48">

        <tr>
          <td style="width: 72pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If the Parties make an HSR Filing with respect to a Collaboration Program under <u>Section 3.1.4</u> of this Agreement and the HSR Clearance Date has not occurred on or prior to 90 days after the effective date of the latest HSR Filing
              made by the Parties, this Agreement will terminate solely with respect to such Collaboration Program (i) at the election of either Party immediately upon notice to the other Party, if the FTC <font style="color: rgb(0, 0, 0);">or</font> the
              DOJ has instituted (or threatened to institute) any action, suit or proceeding including seeking, threatening to seek or obtaining a preliminary injunction under the HSR Act against Biogen and Ionis to enjoin or otherwise prohibit the
              transactions contemplated by this Agreement related to such Collaboration Program, or (ii) at the election of either Party, immediately upon notice to the other Party, if the Parties have not resolved any and all objections of the FTC and DOJ
              as contemplated by <u>Section 3.1.4(b)</u>.&#160; Notwithstanding the foregoing, this <u>Section 10.2.3</u> will not apply if an HSR Filing is not required to fully perform this Agreement with respect to a Collaboration Program.</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z091325cd22904e538d564f0f2ec8c2f4">

        <tr>
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          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If this Agreement is terminated with respect to a Collaboration Program in accordance with <u>Section 10.2.3(a)</u>, then, <font style="font-style: italic;">until</font> [***] as follows:</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z50c7a83c1ea948eda44e282e5829c457">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If Ionis [***]; and</div>
          </td>
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    </table>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z45cc1bb2ad4c4952861c4eb42b05b14e">

        <tr>
          <td style="width: 108pt;"><br>
          </td>
          <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
          <td style="width: auto; vertical-align: top; text-align: justify;">
            <div>If Ionis, its Affiliates or the licensee [***<u>]</u>.</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: justify; margin-left: 108pt;">Nothing in this <u>Section 10.2.3(b)</u> obligates Ionis to (A) [***] or (B) [***<u>]</u>.</div>
    <div>&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">69</font></div>
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        <div style="text-align: center; font-weight: bold;">
          <div style="text-align: right; font-weight: bold;">
            <div style="font-weight: bold;">CONFIDENTIAL</div>
            <div style="font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"> </div>
      </div>
    </div>
    <div>
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              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.2.4.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination for Material Breach</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z04736c4dc0564b769d09316702989d26" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Right to Terminate</u></font><font style="font-size: 10pt;">.&#160; If Biogen believes that Ionis is in material breach of this Agreement (other than
                    with respect to a failure to use Commercially Reasonable Efforts under <u>Section 1.5.3</u>, which is governed by <u>Section 10.2.5</u> below), then Biogen may deliver notice of such material breach to Ionis.&#160; If the breach is
                    curable, Ionis will have [***] days to cure such breach.&#160; If Ionis fails to cure such breach within the [***] day period, or if the breach is not subject to cure, Biogen may terminate this Agreement with respect to the Collaboration
                    Program affected by such breach by providing written notice to Ionis.&#160; Without limiting the foregoing, breach by a Party of <u>ARTICLE 2</u> of this Agreement constitutes a material breach of this Agreement with respect to the
                    Collaboration Program affected by such breach.&#160; Notwithstanding the foregoing, if Biogen is entitled to terminate this Agreement under this <u>Section 10.2.4(a)</u> with respect to a breach by Ionis that negatively and materially
                    impacts the value of a particular Collaboration Program, in lieu of such termination (and as its sole and exclusive remedy for such breach), Biogen may elect to substitute another High Interest Target for the applicable Collaboration
                    Target by sending Ionis a written notice within </font><font style="font-size: 10pt;">[***] days of Biogen becoming aware of such breach, in which case, such substitution will not be counted for purposes of determining whether Biogen
                    has exceeded the Substitution Limit.</font></div>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zc2ed6fac2f82470a86ed4e02b628d03f" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Ionis&#8217; Right to Terminate</u></font><font style="font-size: 10pt;">.&#160; If Ionis believes that Biogen is in material breach of (i) a payment obligation under <u>ARTICLE


                      6</u> or (ii) one or more material provisions of this Agreement where such material breaches have occurred multiple times over the course of at least a [***] period (where such material breach is not a single continuous event)
                    demonstrating a pattern of failing to timely comply with Biogen&#8217;s obligations under this Agreement (other than with respect to a failure to use Commercially Reasonable Efforts under <u>Section 5.1</u>, which is governed by <u>Section
                      10.2.5</u> below), then Ionis may deliver notice of such material breach to Biogen. If the breach is curable, Biogen will have [***] days to cure such breach (except to the extent such breach involves the failure to make a payment
                    when due, which breach must be cured within [***] days following such notice). If Biogen fails to cure such breach within the [***] day or [***] day period, as applicable, or if the breach is not subject to cure, Ionis in its sole
                    discretion may terminate this Agreement with respect to the Collaboration Program affected by such breach by providing written notice thereof to Biogen.</font></div>
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        <div>&#160;</div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z06d4da62da4446f4aa70ac052fa2db4d" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.2.5.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Remedies for Failure to Use Commercially Reasonable Efforts</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
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        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z83493662092d497bbe9004f73b2e6b00" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>If Ionis, in Biogen&#8217;s reasonable determination, fails to use Commercially Reasonable Efforts in the activities contemplated in <u>Section 1.5.3</u> prior to the License Effective Date with respect to a particular Collaboration
                  Program, Biogen will notify Ionis and, within [***] days thereafter, Ionis and Biogen will meet and confer to discuss and resolve the matter in good faith, and attempt to devise a mutually agreeable plan to address any outstanding issues
                  related to Ionis&#8217; use of Commercially Reasonable Efforts in <u>Section 1.5.3</u>.&#160; Following such a meeting, if Ionis fails to use Commercially Reasonable Efforts as contemplated by <u>Section 1.5.3</u> with respect to such
                  Collaboration Program, then subject to <u>Section 10.2.6</u> below, Biogen will have the right, at its sole discretion, to (i) terminate this Agreement as it relates to the applicable Collaboration Program or, (ii) prior to the License
                  Effective Date for such Collaboration Program, Biogen may elect to trigger the alternative remedy provisions of <u>Section 10.3</u> below as it relates to the applicable Collaboration Program in lieu of terminating this Agreement for
                  such Collaboration Program by providing written notice to Ionis.&#160; This <u>Section 10.2.5(a)</u> sets forth Biogen&#8217;s sole and exclusive remedies if Ionis fails to use Commercially Reasonable Efforts in the activities contemplated in <u>Section







                    1.5.3</u> prior to the License Effective Date for a particular Collaboration Program.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z91ee971c73be4d07aee97e9dba3157f3" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>If Biogen, in Ionis&#8217; reasonable determination, fails to use Commercially Reasonable Efforts under <u>Section 5.1</u> with respect to a Collaboration Program above, Ionis will notify Biogen and, within [***] days thereafter, Ionis and
                  Biogen will meet and confer to discuss and resolve the matter in good faith, and attempt to devise a mutually agreeable plan to address any outstanding issues related to Biogen&#8217;s use of Commercially Reasonable Efforts in <u>Section 5.1</u>.&#160;








                  Following such a meeting, if Biogen fails to use Commercially Reasonable Efforts with respect to the applicable Collaboration Program as contemplated by <u>Section 5.1</u>, then subject to <u>Section 10.2.6</u> below, Ionis will have
                  the right, at its sole discretion, to terminate this Agreement as it relates to such Collaboration Program.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z46a5c2fa8b2640a6bcc37b23cbc47416" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.2.6.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Disputes Regarding Material Breach</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding the foregoing, if the Breaching Party in <u>Section 10.2.4</u>
                    or <u>Section 10.2.5</u> disputes in good faith the existence, materiality, or failure to cure of any such breach which is not a payment breach, and provides notice to the Non-Breaching Party of such dispute within such [***] day
                    period, then the Non-Breaching Party will not have the right to terminate this Agreement in accordance with <u>Section 10.2.4</u> or <u>Section 10.2.5</u>, or trigger the substitution right under <u>Section 10.2.4(a)</u> or the
                    alternative remedy provisions of <u>Section 10.2.5</u>, as applicable, unless and until it has been determined in accordance with <u>Section 12.1</u> that this Agreement was materially breached by the Breaching Party and the Breaching
                    Party fails to cure such breach within [***] days following such determination.&#160; It is understood and acknowledged that during the pendency of such dispute, all the terms and conditions of this Agreement will remain in effect and the
                    Parties will continue to perform all of their respective obligations hereunder, including satisfying any payment obligations.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">71</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zdc0056bdd1934e4bb647a5d7bb295809" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.2.7.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination for Insolvency</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zc3dd8e5b818f4d77ad5d96ba31fb08f7" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Either Party may terminate this Agreement if, at any time, the other Party files in any court or agency pursuant to any statute or regulation of any state or country a petition in bankruptcy or insolvency or for reorganization or for
                  an arrangement or for the appointment of a receiver or trustee of the Party or of substantially all of its assets; or if the other Party proposes a written agreement of composition or extension of substantially all of its debts; or if the
                  other Party will be served with an involuntary petition against it, filed in any insolvency proceeding, and such petition will not be dismissed within 90 days after the filing thereof; or if the other Party will propose or be a party to
                  any dissolution or liquidation; or if the other Party will make an assignment of substantially all of its assets for the benefit of creditors.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="za315c882e27946ad953c426fac244f9e" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>All rights and licenses granted under or pursuant to any section of this Agreement are and will otherwise be deemed to be for purposes of Section 365(n) of Title 11, United States Code (the &#8220;<font style="font-weight: bold; font-style: italic;">Bankruptcy Code</font>&#8221;) licenses of rights to &#8220;intellectual property&#8221; as defined in Section 101(56) of the Bankruptcy Code. The Parties will retain and may fully exercise all of their respective rights and elections under the
                  Bankruptcy Code.&#160; Upon the bankruptcy of any Party, the non-bankrupt Party will further be entitled to a complete duplicate of, or complete access to, any such intellectual property, and such, if not already in its possession, will be
                  promptly delivered to the non-bankrupt Party, unless the bankrupt Party elects in writing to continue, and continues, to perform all of its obligations under this Agreement.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zaabccd6a305b4814bccf3d3a74737283" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.2.8.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination for Patent Challenge</u></font><font style="font-size: 10pt;">.&#160; Ionis may terminate this Agreement if Biogen (i) commences or otherwise
                    voluntarily determines to participate in any action or proceeding, challenging or denying the enforceability or validity of any claim within an issued patent or patent application within such Licensed Patents, or (ii) directs, supports
                    or actively assists any other Person in bringing or prosecuting any action or proceeding challenging or denying the validity of any claim within an issued patent or patent application within such Licensed Patents and, in each case ((i)
                    or (ii)), within [***] days&#8217; written notice from Ionis, Biogen fails to rescind any and all of such actions, <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font> that, nothing in this
                    clause prevents Biogen from taking any of the actions referred to in this clause and <font style="font-style: italic;">provided further</font> that Ionis will not have the right to terminate if Biogen:</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z88331b04ef784feb98a67e8efd4fdf50" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>takes any such action as described in clause (i) or (ii) above as may be necessary or reasonably required to assert a cross-claim or a counter-claim or to respond to a court request or order or administrative law request or order,
                  including asserting invalidity as a defense in any court proceeding brought by Ionis asserting infringement of a Licensed Patent; or</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z52fb444899fd452da0cdb7fd718b740a" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Acquires a Third Party that has an existing challenge, whether in a court or administrative proceeding, against a Licensed Patent; or</div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z5262e50569cf439db91b4538d6522c5d" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>licenses a product for which Ionis has an existing challenge, whether in a court or administrative proceeding, against a Licensed Patent.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">72</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z2a6777a42c70447386c55cc13ab84d98" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126787"></a><a name="z_Toc74129756"></a><a name="z_Toc74160309"></a><font style="font-weight: bold;">10.3.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Alternative Remedies to Termination Available to Biogen Prior to the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; If, prior to the
                    License Effective Date with respect to a particular Collaboration Program, Biogen elects to (i) exercise the alternative remedy provisions of this <u>Section 10.3</u> in lieu of terminating this Agreement for such Collaboration Program
                    by providing written notice of such election to Ionis in accordance with <u>Section 10.2.5(a)</u>, or (ii) exercise the Option in accordance with [***<u>]</u>, then, in each case, <font style="font-style: italic;">solely with respect
                      to the Collaboration Program giving rise to Biogen&#8217;s exercise of these alternative remedy provisions</font>, this Agreement will continue in full force and effect with the following modifications:</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="ze3705f0404ac4582a1d8689e2ede3f32" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ionis will have no further rights or obligations to Develop the Product under the applicable Collaboration Program or participate in the Neurology JSC, JPC or any other subcommittees or working groups established pursuant to this
                  Agreement.&#160; Biogen will solely make all decisions that this Agreement would otherwise require or permit the Neurology JSC, JPC or any other subcommittees or working groups, or the Parties collectively, to make; <font style="font-style: italic;">provided</font>, <font style="font-style: italic;">however</font>, that Biogen will not have the right to create any obligations or incur any liabilities for or on behalf of Ionis;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z4b88f255b97f40d7b787b3b5b1802369" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>effective as of the date of Biogen&#8217;s notice to Ionis electing the alternative remedy provisions of this <u>Section 10.3</u>, Biogen will be deemed for all purposes of this Agreement to have exercised the applicable Option;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z6a8755312d884a628f324ad32e8ae137" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Biogen will have and Ionis grants, the exclusive license granted to Biogen under <u>Section 4.1.1</u> for the applicable Collaboration Program;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z1acb4927249547d9a390a14d60fabaff" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Biogen may exclude Ionis from all discussions with Regulatory Authorities regarding the applicable Products, except to the extent Ionis&#8217; participation is required by a Regulatory Authority or is otherwise reasonably necessary to comply
                  with Applicable Law;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z235ec274336d4cbf86e68d4c4f98db9f" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Biogen&#8217;s obligation to make further disclosures of Know-How or other information to Ionis regarding the applicable Products pursuant to this Agreement (including pursuant to <u>Section 4.8</u> and <u>Section 5.2.2</u>) will
                  terminate, other than reports required by <u>Section 6.9.1</u>, <u>Section 10.4.3</u> (if applicable), and as reasonably required to permit Ionis to perform its obligations under this Agreement, <font style="font-style: italic;">provided







                  </font>such remedy will not limit or diminish the scope of any licenses granted by Biogen to Ionis <a name="z_cp_text_1_203"></a>under this Agreement ;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zc4b528d812fd46efb5753da4d0bce6dc" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(f)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ionis will perform its obligations under <u>Section 4.8</u> with respect to the applicable Product within [***] days of Biogen electing to exercise its alternative remedies under this <u>Section 10.3</u> or exercising the Option in
                  accordance with [***<u>]</u>, and will provide to Biogen and its Third Party contractors all Know-How, assistance, assignments and other support reasonably requested to assist Biogen in assuming complete responsibility for the Development
                  and Manufacture of the applicable Products in an efficient and orderly manner; and</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">73</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z95caa1d4d1d346c389ad157f1db712c5" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(g)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>the financial provisions of <u>ARTICLE 6</u> as they apply to such Collaboration Program will be modified as follows:</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
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            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><u><font style="font-style: italic;"><font style="font-size: 10pt;">[</font></font></u><font style="font-size: 10pt;"><u><font style="font-style: italic;">*</font><font style="font-style: italic;">*</font>*<font style="font-style: italic;">] Payments</font></u>.&#160; Biogen will [***<u>]</u>; and</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="za2bf0f9061b34966be31957fc5d46fb2" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-style: italic;"><u>License Fee</u></font><font style="font-size: 10pt;">.&#160; The license fee set forth in <u>Section 6.3</u> for the applicable Product will be [***].&#160; Such
                    [***] will be due within 90 days after [***] and Biogen&#8217;s [***].</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt;">The milestone provisions of <u>Section 6.4</u> and the royalty provisions of <u>Section 6.6</u> will [***].</div>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z542d82ffadc346469b3ad9c22005aa35" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126788"></a><a name="z_Toc74129757"></a><a name="z_Toc74160310"></a><font style="font-weight: bold;">10.4.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Consequences of Expiration or Termination of the Agreement</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z15c72158d25842da9d4aa21165a7fcb8" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.4.1.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>In General</u></font><font style="font-size: 10pt;">.&#160; If this Agreement expires or is terminated by a Party in accordance with this <u>ARTICLE 10</u> at
                    any time and for any reason, the following terms will apply to any Collaboration Program that is the subject of such expiration or termination:</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z14e6841265a04b41ad09aef0a2fa7c3d" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Return of Information and Materials</u></font><font style="font-size: 10pt;">.&#160; The Parties will return (or destroy, as directed by the other Party) all
                    data, files, records and other materials containing or comprising the other Party&#8217;s Confidential Information, except to the extent such Confidential Information is necessary or useful to conduct activities under a surviving
                    Collaboration Program. Notwithstanding the foregoing, the Parties will be permitted to retain one copy of such data, files, records, and other materials for archival and legal compliance purposes.</font></div>
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        <div>&#160;</div>
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            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Perpetual, Royalty-Free Non-Exclusive License</u></font><font style="font-size: 10pt;">.&#160; If Biogen has exercised its Option for a particular Collaboration
                    Program, then upon expiration of the Reduced Royalty Period in all countries in which the applicable Products are being or have been sold, Ionis will and hereby does grant to Biogen a perpetual, nonexclusive, worldwide, royalty-free,
                    fully paid-up, sublicensable license under the Ionis Know-How to Manufacture, Develop and Commercialize any Product under such Collaboration Program.</font></div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z4e2bdf7090f74f3882f9bd82b509d016" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Accrued Rights</u></font><font style="font-size: 10pt;">.&#160; Termination or expiration of this Agreement for any reason will be without prejudice to any rights
                    or financial compensation that will have accrued to the benefit of a Party prior to such termination or expiration. Such termination or expiration will not relieve a Party from obligations that are expressly indicated to survive the
                    termination or expiration of this Agreement. For purposes of clarification, milestone payments under <u>ARTICLE 6</u> accrue as of the date the applicable Milestone Event is achieved even if the payment is not due at that time.</font></div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">74</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
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        <table cellspacing="0" cellpadding="0" id="z633c36b1ee6642049c04d0b620209899" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
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                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Survival</u></font><font style="font-size: 10pt;">.&#160; The following provisions of this Agreement will survive the expiration or termination of this Agreement:
                    <u>Section 4.1.2(c)</u> (Effect of Termination on Sublicenses), <u>Section 4.2.2</u>, <u>Section 4.3.2</u> (Enabling Licenses to Biogen), <u>Section 4.3.3</u> (Enabling Licenses to Ionis), <u>Section 4.4</u> (Licenses to Ionis for
                    Biogen Results), <u>Section 4.5</u> (Right to Obtain Direct License from Biogen to Ionis Partners; Sublicensees of Ionis), <u>Section 4.8</u> (Technology Transfer after the License Effective Date) (but only to the extent necessary to
                    satisfy the requirements of <u>Section 10.4.3</u>), <u>Section 6.7</u> (Reverse Royalty Payments to Biogen for a Discontinued Product), <u>Section 6.9.3</u> (Records Retention), <u>Section 6.10</u> (Audits), <u>Section 7.1.1</u>
                    (Ionis Technology and Biogen Technology), <u>Section 7.1.2</u> (Agreement Technology), <u>Section 7.4.2</u> (Discontinued Product) <u>Section 8.4</u> (Disclaimer), <u>ARTICLE 9</u> (Indemnification; Insurance), <u>Section 10.2.3(b)</u>,
                    <u>Section 10.2.7</u> (Termination for Insolvency), <u>Section 10.4</u> (Consequences of Expiration or Termination of the Agreement) (except <u>Section 10.4.4</u> (Remedies Available to Biogen for Ionis&#8217; Material Breach After the
                    License Effective Date)), <u>ARTICLE 11</u> (Confidentiality), <u>ARTICLE 12</u> (Miscellaneous) and <font style="font-variant: small-caps;"><u>Appendix 1</u></font> (Definitions) (to the extent definitions are embodied in the
                    foregoing listed Articles and Sections). In addition, subject to <u>Section 10.4.3(d)(vi)</u> (if applicable), the following provisions of this Agreement will survive the expiration or termination of this Agreement, solely as they
                    relate to Jointly-Owned Program Patents: <u>Section 7.2.3</u> (Jointly-Owned Program Patents), <u>Section 7.2.4</u> (Other Matters Pertaining to Prosecution and Maintenance of Patent Rights), <u>Section 7.3.1</u> (Jointly-Owned
                    Program Patents), <u>Section 7.4</u> (Defense of Claims Brought by Third Parties), <u>Section 7.5</u> (Enforcement of Patents against Competitive Infringement) and <u>Section 7.6.1</u> (Jointly-Owned Program Patents).</font></div>
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        <div>&#160;</div>
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              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.4.2.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination Prior to the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; If this Agreement expires or is terminated by a Party in
                    accordance with this <u>ARTICLE 10</u> prior to or on the License Effective Date with respect to a Collaboration Program, or Biogen&#8217;s Option for an applicable Collaboration Program expires pursuant to <u>Section<font style="color: rgb(0, 0, 0);"> </font><font style="color: rgb(0, 0, 0);">3.1.3</font></u>, then, in addition to the terms set forth in <u>Section 10.4.1</u>, the following terms will apply to each Collaboration Program that is the subject of
                    such expiration or termination:</font></div>
              </td>
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        </table>
        <div>&#160;</div>
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              <td style="width: 72pt;"><br>
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              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51653677"></a><font style="font-weight: bold;">(a)</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Biogen&#8217;s Option under <u>Section 3.1</u> will expire and Ionis will be free to Develop and Commercialize the applicable Product (and any other applicable Compounds) on its own or with a Third Party.</div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z4708e3e5117f46eb911f3553ca58520b" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51653693"></a><font style="font-weight: bold;">(b)</font></td>
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                <div>Neither Party will have any further obligations under <u>Section 2.1</u> of this Agreement with respect to the terminated Collaboration Program(s).</div>
              </td>
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        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z36208b770c0045b788748f3904e983e2" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51653734"></a><font style="font-weight: bold;">(c)</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>To the extent requested by Ionis, Biogen will promptly (i) assign to Ionis any manufacturing agreements with a CMO identified by Ionis to which Biogen is a party, solely to the extent such manufacturing agreements relate to the
                  terminated Collaboration Program and (ii) transfer to Ionis all data, results and information (including Biogen&#8217;s Confidential Information and any regulatory documentation (including drafts)) related to the testing and Clinical Studies
                  under the terminated Collaboration Program(s) in the possession of Biogen and its contractors to the extent such data, results and information were generated by or on behalf of Biogen under this Agreement; and Ionis will pay all
                  out-of-pocket direct Third Party costs and expenses in transferring such data, results and information together with Biogen&#8217;s FTE Cost in transferring such data, results and information.</div>
              </td>
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        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">75</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z6167ace5b0d043a28fcb30b44be61e00" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 72pt;"><br>
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              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51652953"></a><font style="font-weight: bold;">(d)</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>If Biogen terminates this Agreement for convenience with respect to a Collaboration Program after the 30<sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">th</sup> day following Biogen&#8217;s receipt of the
                  Development Candidate Data Package for such Collaboration Program, but prior to or on the License Effective Date for such Collaboration Program, then Biogen will [***<u>]</u>.</div>
              </td>
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        <div>&#160;</div>
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            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref51653757"></a><font style="font-weight: bold;">(e)</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Except as explicitly set forth in <u>Section 10.4.1(a)</u>, <u>Section 10.4.1(c)</u> or <u>Section 10.4.1(d)</u>, Biogen will have no further rights and Ionis will have no further obligations with respect to each terminated
                  Collaboration Program.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z8d36f934181a47289e226ddf748ae487" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.4.3.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination After the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; If this Agreement is terminated by a Party in accordance with this <u>ARTICLE


                      10</u> after the License Effective Date for a Collaboration Program, then, in addition to the terms set forth in <u>Section 10.4.1</u>, the following terms will apply to any Collaboration Program that is the subject of such
                    termination:</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z7751f1ee00784f8ba55ae8b93252eccc" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>The applicable licenses granted by Ionis to Biogen under this Agreement will terminate and Biogen, its Affiliates and Sublicensees will cease selling the applicable Products, unless Ionis elects to have Biogen continue to sell the
                  applicable Products as part of the Transition Services to the extent provided in <u>Section 10.4.5</u>.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z06d3adf4d08c45b5af20284f3801e8df" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Neither Party will have any further obligations under <u>Section 2.1</u> of this Agreement with respect to the terminated Collaboration Program(s).</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z29edd7186fbe4a68b99bc3dc6639ea1e" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Except as explicitly set forth in <u>Section 10.4.1(a)</u>, Biogen will have no further rights and Ionis will have no further obligations with respect to the terminated Collaboration Program.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z287f340abc634878ae618d133eae3a7d" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>If (i) Biogen terminates the Agreement under <u>Section 10.2.1</u> (Biogen&#8217;s Termination for Convenience) or (ii) Ionis terminates this Agreement under <u>Section 10.2.4(b)</u> (Ionis&#8217; Right to Terminate) or <u>Section 10.2.5</u>
                  (Remedies for Failure to Use Commercially Reasonable Efforts), then the following additional terms will also apply <font style="font-style: italic;">solely with respect to the terminated Collaboration Program(s)</font>:</div>
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        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z2d1240de952b4b848c4f212c70dc5734" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref961923"></a><font style="font-weight: bold;">(i)</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Biogen will, and does hereby, grant to Ionis a sublicensable, worldwide, exclusive license or sublicense, as the case may be, to all Biogen Technology Controlled by Biogen as of the date of such reversion that Covers the applicable
                  Discontinued Product(s) solely as necessary to Develop, make, have made, use, sell, offer for sale, have sold, import and otherwise Commercialize the applicable Discontinued Product(s) in the Field (such license will be sublicensable by
                  Ionis in accordance with <u>Section 4.1.2</u>, <font style="font-style: italic;">mutatis mutandis</font>);</div>
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        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">76</font></div>
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zc688b41f20dd41d98e75dfd82af54976" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
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                <div>Within [***] days following the date of the termination, Biogen will assign back to Ionis any Product-Specific Patents and Ionis&#8217; interest in any Program Patents that relate to the applicable Discontinued Product(s) previously assigned
                  by Ionis to Biogen under this Agreement;</div>
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        <div>&#160;</div>
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              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(iii)</td>
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                <div>Within [***] days following the date of the termination, Biogen will transfer to Ionis for use with respect to the Development and Commercialization of the applicable Discontinued Product(s), any Know-How data, results, and copies of
                  Regulatory Materials in the possession of Biogen as of the date of such reversion to the extent related to such Discontinued Product(s), and any other information or material specified in <u>Section 4.8</u>, <font style="font-style: italic;">provided that</font>, for the avoidance of doubt, as between the Parties, title to any intellectual property that is Biogen Technology within any of the foregoing will remain with Biogen subject to the license granted to Ionis
                  under <u>Section 10.4.3(d)(i)</u>, except as otherwise provided in <u>Section 10.4.3(d)(iv)</u> below;</div>
              </td>
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        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z713e299bf75a4b9ea45cf264742da187" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref482798137"></a><font style="font-weight: bold;">(iv)</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Within [***] days following the date of the termination, Biogen will assign, and hereby does assign, to Ionis all of Biogen&#8217;s right, title and interest in and to all Regulatory Materials, including any NDA, IND and orphan drug
                  designation that relate to the applicable terminated Product(s), <font style="font-style: italic;">provided that</font>, (x) notwithstanding the foregoing, and subject to the provisions of <u>Section 2.1</u>, the Parties acknowledge
                  that Biogen shall be permitted to use excerpts or portions of any such assigned Regulatory Materials in any other regulatory submissions, notifications, registrations, approvals and/or other filings and correspondence made to or with a
                  Regulatory Authority in any country or jurisdiction related to products under the Ionis/Biogen Additional Agreements or products that do not include an Oligonucleotide as an active pharmaceutical ingredient, <font style="font-style: italic;">provided, further</font> that, for such products that do not include an Oligonucleotide as an active pharmaceutical ingredient, such excerpts or portions shall not include any Confidential Information of Ionis, and (y) for
                  clarity, such assignment of Biogen&#8217;s right, title and interest in and to such Regulatory Materials shall not include the assignment of any Know-How (including any data) contained therein.&#160; If Biogen intends to use any excerpt or portion
                  of any such assigned Regulatory Materials in accordance with clause (x) of the preceding sentence, Biogen shall, at least [***] days in advance of the anticipated submission of such excerpt or portion to a Regulatory Authority, notify
                  Ionis of such intent and provide to Ionis a copy of such proposed excerpt or portion for review and comment.&#160; The Parties shall discuss in good faith any comments of Ionis with respect to such proposed excerpt or portion prior to
                  submission thereof;</div>
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        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">77</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zdf15cdbf63d84418b440dc07fa755686" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
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              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref961933"></a><font style="font-weight: bold;">(v)</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Within [***] days following the date of the termination, Biogen will, and does hereby, exclusively license to Ionis any trademarks that are specific to a Discontinued Product(s) solely for use with such Discontinued Product(s), in
                  accordance with <u>Section 4.1.5</u>, <font style="font-style: italic;">mutatis mutandis</font>; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that in no event will Biogen have any
                  obligation to license to Ionis any trademarks used by Biogen both in connection with the Product and in connection with the sale of any other product or service, including any BIOGEN- or BIOGEN-formative marks;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z7aad9cfe522f4ccbb66174adbcb3e1a1" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(vi)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ionis will control and be responsible for all aspects of the Prosecution and Maintenance of all Jointly-Owned Program Patents arising from the terminated Collaboration Program, and Biogen will provide Ionis with (and will instruct its
                  counsel to provide Ionis with) all of the information and records in Biogen&#8217;s and its counsel&#8217;s possession related to the Prosecution and Maintenance of such Jointly-Owned Program Patents; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that if Ionis intends to abandon any such Jointly-Owned Program Patents without first filing a continuation or substitution, then Ionis will notify Biogen of such intention at least [***]
                  days before such Patent Right will become abandoned, and Biogen will have the right, but not the obligation, to assume responsibility for the Prosecution and Maintenance thereof at its own expense with counsel of its own choice; and</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z93651027ee714a21877bc5daf770f9eb" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(vii)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ionis will have the obligation to pay royalties to Biogen under <u>Section 6.7</u> with respect to the applicable Discontinued Product(s).&#160; Such payments will be governed by the financial provisions in <u>Section 6.9</u>, and the
                  definition of Net Sales will apply to sales of Discontinued Product(s) by Ionis, in each case <font style="font-style: italic;">mutatis mutandis</font>.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z9bb6562beea842ce97b011dda30a3c56" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>If Ionis terminates this Agreement due to Biogen&#8217;s material breach or Biogen terminates this Agreement for convenience, then upon Ionis&#8217; written request pursuant to a mutually agreed supply agreement, Biogen will sell to Ionis any bulk
                  API, Clinical Supplies and Finished Drug Product in Biogen&#8217;s possession at the time of such termination, at a price equal to [***].</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zbcbbca9072b542288e6de3ff3e249e40" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(f)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>To the extent requested by Ionis, Biogen will promptly assign to Ionis any manufacturing agreements solely to the extent related to the applicable Discontinued Products and identified by Ionis to which Biogen is a party.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">78</font></div>
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            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z452ec8fb9d0a43339167b60a56202dc5" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">10.4.4.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Remedies Available to Biogen for Ionis&#8217; Material Breach After the License Effective Date</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zabb0be02311a4255ac5f63932a5a4129" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Termination of Committees and Information Sharing</u></font><font style="font-size: 10pt;">. If, after the License Effective Date for a particular
                    Collaboration Program, Ionis materially breaches this Agreement and fails to cure such breach within the time periods set forth under <u>Section 10.2.4(a)</u>, and Biogen does not wish to terminate this Agreement in its entirety (an &#8220;<font style="font-weight: bold; font-style: italic;">Ionis Breach Event</font>&#8221;), then, in addition to any other remedies Biogen may have under this Agreement or otherwise, Biogen will have the right to do any or all of the following in
                    Biogen&#8217;s discretion <font style="font-style: italic;">solely with respect to the Collaboration Programs that are the subject of the Ionis Breach Event</font>:</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z3686b4d62baf4ad38e380c7721dc35e0" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Terminate Ionis&#8217; right to participate in the Neurology JSC, JPC and any other subcommittees or working groups established pursuant to this Agreement;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z554f901c18794297bacaa0ec4abb9f78" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Terminate Ionis&#8217; participation in any ongoing research and development programs under the applicable Collaboration Program and Biogen&#8217;s funding obligations associated therewith;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zab64c1773699454cb6d3700e20761da3" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(iii)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Solely make all decisions required or permitted to be made by such committees or the Parties collectively under this Agreement in connection with the Development and Commercialization of the applicable Product; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that Biogen will not have the right to create any obligations or incur any liabilities for or on behalf of Ionis;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zbc84a1b1c072448bbe5cfe6d7bf65881" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(iv)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Exclude Ionis from all discussions with Regulatory Authorities regarding applicable Products, <font style="font-style: italic;">except</font> to the extent Ionis&#8217; participation is required by a Regulatory Authority or is otherwise
                  reasonably necessary to comply with Applicable Law;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z3f07d49e528d46dfa39608d9e833f7ea" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(v)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Terminate Biogen&#8217;s obligation to make further disclosures of Know-How or other information to Ionis pursuant to this Agreement related to the applicable Products, including pursuant to <u>Section 4.8</u> and <u>Section 5.2.2</u>,
                  other than reports required by <u>Section 6.9.1</u>, <u>Section 10.4.3</u> (if applicable), and as reasonably required to permit Ionis to perform its obligations under this Agreement, <font style="font-style: italic;">provided </font>such








                  remedy will not limit or diminish the scope of any licenses granted by Biogen to Ionis under this Agreement; and</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z2466b9e070344f5f9282e7173c5e5ea4" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(vi)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>If Ionis has not completed the Development activities that are its responsibility under the applicable Collaboration Program Research Plan and Development Plan, then Biogen may, but will not be obligated to, assume all responsibility
                  for all such Development activities that would have otherwise been Ionis&#8217; responsibility under this Agreement.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">79</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify; margin-left: 108pt;">Ionis will cooperate with the foregoing and provide to Biogen and its Third Party contractors all Know-How, assistance, assignments and other support reasonably requested to assist Biogen in
          assuming complete responsibility for the Development and Manufacture of the applicable Products in an efficient and orderly manner.</div>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z1fdd8038fe52493fac9d8e3f731eee37" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Biogen&#8217;s Right of Setoff</u></font><font style="font-size: 10pt;">.&#160; If there is [***] and Biogen does not wish to [***], then, in addition to any other
                    remedies Biogen may have under this Agreement or otherwise, Biogen may setoff against any amounts owed to Ionis pursuant to <u>ARTICLE 6</u> (Financial Provisions) <font style="font-style: italic;">solely </font>with respect to the
                    Collaboration Program that is the subject of the [***] (the &#8220;<font style="font-weight: bold; font-style: italic;">Setoff Amount</font>&#8221;).&#160; If Biogen exercises its setoff right under this <u>Section 10.4.4(b)</u>, Biogen will provide
                    Ionis with a written certificate, signed by Biogen&#8217;s Chief Financial Officer, certifying that the amount setoff by Biogen represents [***].&#160; Notwithstanding the foregoing, if Ionis notifies Biogen in writing (a &#8220;<font style="font-weight: bold; font-style: italic;">Setoff Dispute Notice</font>&#8221;) that it disputes Biogen&#8217;s assertion that Ionis is in material breach of this Agreement or the amount setoff by Biogen (a &#8220;<font style="font-weight: bold; font-style: italic;">Setoff Dispute</font>&#8221;), then (i) both Parties will participate in the dispute resolution process set forth on <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 10.4.4(b)</u>, and (ii) pending the
                    Parties&#8217; agreement regarding the appropriate setoff (if any) or a determination by the Advisory Panel of the proper amount that Biogen may setoff (if any) in accordance with <font style="font-variant: small-caps;"><u>Schedule</u></font><u>
                      10.4.4(b)</u>, Biogen will pay the Setoff Amount into an interest-bearing escrow account established for the purpose at a bank. If the Parties cannot settle their dispute by mutual agreement, then, in accordance with <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 10.4.4(b)</u> the Advisory Panel will determine (A) the amount (if any) that Biogen may setoff against future payments <font style="font-style: italic;">solely </font>with
                    respect to the Collaboration Program that is the subject of the Ionis Breach Event to Ionis going forward, and (B) whether any portion of the escrow account should be released to Ionis or returned to Biogen; <font style="font-style: italic;">provided</font> that any decision or determination by the Advisory Panel (a &#8220;<font style="font-weight: bold; font-style: italic;">Panel Decision</font>&#8221;) will not be treated as an arbitral award but will be binding on the
                    Parties until and unless a court of competent jurisdiction (the &#8220;<font style="font-weight: bold; font-style: italic;">Trial Court</font>&#8221;) has determined in a judgment regarding some or all of the issues decided in the Panel Decision,
                    and in any Action contemplated by the next sentence hereof the Trial Court will determine the facts and the law <font style="font-style: italic;">de novo</font>, and will give a Panel Decision only such persuasive effect, if any, that
                    after review of all of the facts and the law presented to the Trial Court by the Parties, the Trial Court deems appropriate; <font style="font-style: italic;">provided</font>&#160;<font style="font-style: italic;">further</font> that the
                    escrow agent will comply with a Panel Decision that determines that any portion of the escrow account should be released to Ionis or returned to Biogen. If it is determined in a judgment by the Trial Court that Ionis owes Biogen any
                    damages, then, during the pendency of any appeal of the Trial Court&#8217;s decision (or, if the Trial Court&#8217;s decision is not appealed, until Biogen recoups such amount), Biogen may setoff against any future payments <font style="font-style: italic;">solely </font>with respect to the Collaboration Programs that are the subject of the Ionis Breach Event to Ionis under this Agreement the amount of any such damages not paid by Ionis.&#160; If it is determined
                    in a Trial Court that Biogen has setoff an amount that exceeds the amount of losses, damages and expenses actually incurred by Biogen as a result of Ionis&#8217; breach of this Agreement, then Biogen will promptly pay to Ionis the amount of
                    such excess, plus interest on such amount as provided for in <u>Section 6.12</u> (Interest on Late Payments), with interest accruing from the time Biogen applied such excess setoff.&#160; If, with respect to a Setoff Dispute, Ionis provides
                    a Setoff Dispute Notice to Biogen and Biogen fails to do any of the following: (I) appoint a member of the Advisory Panel to the extent required in Section 2 of <font style="font-variant: small-caps;"><u>Schedule</u></font><u>
                      10.4.4(b)</u>; (II) meet with the Advisory Panel as required in Section 3 of <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 10.4.4(b);</u> or (III) pay the Setoff Amount into an interest-bearing escrow account
                    established for the purpose at a bank, then Biogen will forfeit its right to set off under this <u>Section 10.4.4(b)</u> and <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 10.4.4(b)</u> with respect to any and all
                    Setoff Disputes.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">80</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zebc22d1b86aa4356b85de316256408e8" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref961728"></a><font style="font-weight: bold;">10.4.5.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Transition Services</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z65d2ff1171da4b328d355064c93dd283" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>In the case where (i) Biogen terminates the Agreement under <u>Section 10.2.1</u> (Biogen&#8217;s Termination for Convenience) or (ii) Ionis terminates this Agreement under <u>Section 10.2.4(b)</u> (Ionis&#8217; Right to Terminate) or <u>Section








                    10.2.5(b)</u> (Remedies for Failure to Use Commercially Reasonable Efforts) with respect to one or more Products, the terms of this <u>Section 10.4.5</u> shall apply.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z1efbbf63bdf14ed487a04244c51da67e" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>In such event, the Parties wish to provide a mechanism to ensure that patients who were being treated with the applicable Product prior to such termination or who desire access to such Product can continue to have access to such
                  Product until the regulatory and commercial responsibilities for the Product are transitioned from Biogen to Ionis following termination of the applicable Product. As such, Ionis may request Biogen perform transition services as listed on
                  <font style="font-variant: small-caps;"><u>Schedule 10.4.5</u></font> and such other transition services that the Parties mutually agree in writing to (i) provide patients with continued access to the applicable Products, (ii) following
                  termination of this Agreement with respect to the applicable Product, transition the responsibilities under all Approvals and ongoing Clinical Studies for the applicable Products to Ionis or its designee and (iii) following termination of
                  this Agreement with respect to the applicable Product, transition the then-current supply process and responsibilities for the Product to Ionis or its designee (collectively, the &#8220;<font style="font-weight: bold; font-style: italic;">Transition








                    Services</font>&#8221;). Subject to the Parties agreeing on a transition plan as described in <u>Section 10.4.5(c)</u>, Biogen will perform such Transition Services using reasonable efforts for a period not to exceed [***] months from the
                  termination date; <font style="font-style: italic;">provided </font>that Biogen and Ionis may mutually agree to conduct the Transition Services for a longer period of time. Notwithstanding the provision of the Transition Services under
                  this <u>Section 10.4.5</u>, Ionis shall not conduct activities with respect to any Discontinued Products to the extent prohibited by <font style="font-variant: small-caps;"><u>ARTICLE 2</u></font> of this Agreement.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">81</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zcc10f596c591417cb5adb86b96c63632" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ionis may elect to have Biogen perform the Transition Services by providing written notice to Biogen no later than the earlier of (i) [***] days following the effective date of the termination and (ii) [***] days following written
                  notice by Biogen to Ionis asking Ionis to confirm if Ionis wishes to have Biogen perform the Transition Services (<font style="font-style: italic;">provided</font> that Biogen did not send such a notice earlier than [***] days following
                  the effective date of the termination). If Ionis requests Transition Services, then Ionis shall propose a transition plan setting forth the Transition Services to be performed by Biogen, including delivery and transition dates consistent
                  with those set forth on <font style="font-variant: small-caps;"><u>Schedule 10.4.5</u></font>, and, for a period of [***] days after such request, the Parties will use good faith efforts to negotiate a mutually agreeable version of such
                  transition plan. In addition, the Parties will, within [***] days after such request, establish a transition committee consisting of at least each Party&#8217;s Alliance Managers, a representative from each Party&#8217;s CMC group who was responsible
                  for the Product prior to the termination, and up to two additional representatives from each Party who are from other relevant functional groups to facilitate a smooth transition. While Biogen is providing Transition Services, Biogen and
                  Ionis will mutually agree on talking points and a communication plan to customers, specialty pharmacies, physicians, Regulatory Authorities, patient advocacy groups and clinical study investigators, and Biogen will make all such
                  communication to such entities in accordance with the mutually agreed talking points.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z8d41e2a157ed463fa72f5bb88a2148dd" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ionis will pay Biogen for the Transition Services at [***] to perform the Transition Services, calculated [***]. In addition, Ionis will reimburse [***] to perform the Transition Services. Ionis will own all revenue derived from the
                  Product after the termination date and Biogen will remit all such revenues to Ionis no later than the [***] day following the end of the month in which such revenue was received.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zf75cc2c2763743ad902390c9a98df29f" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ionis or its designee will be sufficiently prepared to accept the transition of Development, Manufacturing and Commercialization activities with respect to the Products to Ionis or such designee on the timelines set forth on <font style="font-variant: small-caps;"><u>Schedule 10.4.5</u></font> for the Transition Services. Biogen will have no liability under this Agreement with respect to a failure of or delay in the Transition Services to the extent caused by any
                  failure or delay by Ionis or its designee in accepting the transition of Development, Manufacturing and Commercialization activities with respect to the Products. In the event that Biogen encounters any delays beyond Biogen&#8217;s reasonable
                  control, the Parties shall discuss in good faith and agree upon extended timelines for completion of the Transition Services.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">82</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;">ARTICLE 11</div>
        <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126789"></a><a name="z_Toc74129758"></a><a name="z_Toc74160311"></a>CONFIDENTIALITY</div>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zf5c4e7037e824e51844f51a2e96cedf1" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126790"></a><a name="z_Toc74129759"></a><a name="z_Toc74160312"></a><font style="font-weight: bold;">11.1.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Confidentiality; Exceptions</u></font><font style="font-size: 10pt;">.&#160; Except to the extent expressly authorized by this Agreement or otherwise agreed in
                    writing, the Parties agree that, during the Agreement Term and for five years thereafter, the receiving Party (the &#8220;<font style="font-weight: bold; font-style: italic;">Receiving Party</font>&#8221;) and its Affiliates will keep confidential
                    and will not publish or otherwise disclose or use for any purpose other than as provided for in this Agreement any confidential <font style="color: rgb(0, 0, 0);">or</font> proprietary information or materials, patentable or otherwise,
                    in any form (written, oral, photographic, electronic, magnetic, or otherwise) which is disclosed to it by the other Party (the &#8220;<font style="font-weight: bold; font-style: italic;">Disclosing Party</font>&#8221;) or its Affiliates or
                    otherwise received or accessed by a Receiving Party in the course of performing its obligations or exercising its rights under this Agreement, including trade secrets, Know-How, inventions or discoveries, proprietary information,
                    formulae, processes, techniques and information relating to the past, present and future marketing, financial, and research and development activities of any product or potential product or useful technology of the Disclosing Party or
                    its Affiliates and the pricing thereof (collectively, &#8220;<font style="font-weight: bold; font-style: italic;">Confidential Information</font>&#8221;).</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z04031071bb3b4bc887d92957e1fc0857" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126791"></a><a name="z_Toc74129760"></a><a name="z_Toc74160313"></a><font style="font-weight: bold;">11.2.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Prior Confidentiality Agreement Superseded</u></font><font style="font-size: 10pt;">.&#160; As of the Effective Date, this Agreement supersedes the Confidential
                    Disclosure Agreement executed by Ionis and Biogen on February 28, 2011 (including any and all amendments thereto). All information exchanged between the Parties under such Confidential Disclosure Agreement will be deemed Confidential
                    Information hereunder and will be subject to the terms of this <u>ARTICLE 11</u>.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z7f5b7421ed5e4487ac7356eaad31e9fa" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126792"></a><a name="z_Toc74129761"></a><a name="z_Toc74160314"></a><font style="font-weight: bold;">11.3.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Authorized Disclosure</u></font><font style="font-size: 10pt;">.&#160; Except as expressly provided otherwise in this Agreement, a Receiving Party or its
                    Affiliates may use and disclose to Third Parties Confidential Information of the Disclosing Party as follows: (a) solely in connection with the performance of its obligations or exercise of rights granted or reserved in this Agreement
                    under confidentiality provisions no less restrictive than those in this Agreement; <font style="font-style: italic;">provided</font> that Confidential Information may be disclosed by a Receiving Party to a governmental entity or agency
                    without requiring such entity or agency to enter into a confidentiality agreement; (b) to the extent reasonably necessary to file or prosecute patent, copyright and trademark applications (subject to <u>Section 11.4</u> below),
                    complying with applicable governmental regulations, obtaining Approvals, conducting Pre-Clinical Studies or Clinical Studies, marketing the Product, or as otherwise required by Applicable Law, regulation, rule or legal process
                    (including the rules of the SEC and any stock exchange); <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that if a Receiving Party or any of its Affiliates is required by Law or
                    regulation to make any such disclosure of a Disclosing Party&#8217;s Confidential Information it will, except where impracticable for necessary disclosures, give reasonable advance notice to the Disclosing Party of such disclosure requirement
                    and will use its reasonable efforts to secure confidential treatment of such Confidential Information required to be disclosed; (c) in communication with actual or potential lenders, investors, merger partners, acquirers, consultants,
                    or professional advisors on a need-to-know basis, in each case under confidentiality provisions no less restrictive than those of this Agreement; (d) to the extent such disclosure is required to comply with existing expressly stated
                    contractual obligations owed to such Party&#8217;s or its Affiliates&#8217; licensor with respect to any intellectual property licensed to the other Party under this Agreement; or (e) as mutually agreed to in writing by the Parties.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">83</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z823a9c2b6cb94c57b8d1a75c75f934b5" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126793"></a><a name="z_Toc74129762"></a><a name="z_Toc74160315"></a><font style="font-weight: bold;">11.4.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Press Release; Publications; Disclosure of Agreement</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z87ff593a6dc34fa29222d2565c9d15cf" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2041889"></a><font style="font-weight: bold;">11.4.1.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Appointment of a Communications Lead</u></font><font style="font-size: 10pt;">.&#160; Prior to the Initiation of each Clinical Study under the Development Plan
                    for any Collaboration Program for which Biogen has not yet been granted a license under <u>Section 4.1.1</u> with respect to a Product, the Neurology JSC shall appoint one of the Parties as the communications lead to take the lead role
                    in drafting, coordinating and facilitating the public disclosure of data and results arising from such Clinical Study (the &#8220;<font style="font-weight: bold; font-style: italic;">Communications Lead</font>&#8221;); <font style="font-style: italic;">provided, however</font>, that if a single Party is the IND-holder and sponsor of the Clinical Study, and is responsible for the conduct of the Clinical Study, then that Party shall automatically be deemed to be the
                    Communications Lead. The Communications Lead shall be responsible for drafting the initial publication and for coordinating and facilitating the disclosure activities for such Clinical Study as set forth in <u>Sections 11.4.5</u> and <u>11.4.6</u>;
                    <font style="font-style: italic;">provided, however</font>, that if, after having worked together in good faith, the Communications Lead and the other Party cannot agree on a matter related to the public disclosure of data and results
                    arising from such a Clinical Study, then, subject to and without limiting <u>Sections 11.4.5</u> and <u>11.4.6</u>, (i) prior to the License Effective Date for such Collaboration Program, Ionis will have final decision-making
                    authority regarding such matter, and (ii) after the License Effective Date for such Collaboration Program, Biogen will have final decision-making authority regarding such matter.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zf05196916280478c8725ffa780361efb" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">11.4.2.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Public Announcements</u></font><font style="font-size: 10pt;">.&#160; On or promptly after the Effective Date, the Parties will jointly issue a public
                    announcement of the execution of this Agreement in form and substance mutually agreed by the Parties. Except to the extent required to comply with Applicable Law, regulation, rule or legal process or as otherwise permitted in accordance
                    with this <u>Section 11.4</u>, neither Party nor such Party&#8217;s Affiliates will make any public announcements, press releases or other public disclosures concerning this Agreement or the terms or the subject matter hereof without the
                    prior written consent of the other, which will not be unreasonably withheld, conditioned or delayed.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zfec608ed4104428ab362069081c104fe" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">11.4.3.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Use of Name</u></font><font style="font-size: 10pt;">.&#160; Except as set forth in <u>Section 11.4.11</u>, neither Party will use the other Party&#8217;s name in a
                    press release or other publication without first obtaining the prior consent of the Party to be named.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z2a624ba203474aecac758f44ac40d1ec" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">11.4.4.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Notice of Significant Events</u></font><font style="font-size: 10pt;">.&#160; Each Party will immediately notify (and provide as much advance notice as possible,
                    but at a minimum two Business Days advance notice to) the other Party of any event materially related to a Product (including in such notice any disclosure of starting/stopping of a Clinical Study, clinical data or results, material
                    regulatory discussions, filings, Approval or Biogen&#8217;s sales projections) so the Parties may analyze the need for or desirability of publicly disclosing or reporting such event.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">84</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zd9f83934f66b40a7b595db92a8027ed0" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2042033"></a><font style="font-weight: bold;">11.4.5.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Prior to the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; Prior to the License Effective Date with respect to a Product, such Product
                    is the sole property of Ionis and, subject to any communication plan for such Product mutually agreed to by the Parties in accordance with <u>Section 1.5.2(a)</u> and to the provisions of this <u>Section 11.4.5</u> and <u>Section
                      11.4.7</u>, Ionis will have the sole right to issue press releases, publish, present or otherwise disclose the progress and results regarding such Product to the public; which shall be consistent with its practice with its other
                    compounds and products; <font style="font-style: italic;">provided</font> that with respect to any proposed press release or other similar public communication by Ionis disclosing regulatory discussions, the efficacy or safety data <font style="color: rgb(0, 0, 0);">or</font> clinical results related to such Product, (a) Ionis will submit such proposed communication to Biogen for review at least two Business Days in advance of such proposed public disclosure, (b)
                    Biogen will have the right to review and recommend changes to such communication, and (c) Ionis will in good faith consider any changes that are timely recommended by Biogen; and <font style="font-style: italic;">provided</font>&#160;<font style="font-style: italic;">further</font> that, if Biogen conducted or co-conducted a Clinical Study that is the subject of such public announcement, press release or other public disclosure, then any such public announcement, press
                    release or other public disclosure shall be jointly issued by the Parties (unless Biogen expressly waives in writing its right to jointly issue such public announcement, press release or other public disclosure). If Biogen desires to
                    make any public announcement, issue a press release or make any other public disclosure with respect to a Clinical Study that was conducted or co-conducted by Biogen prior to the date Biogen has been granted a license under <u>Section
                      4.1.1</u> with respect to a Product, Biogen shall so notify Ionis and shall provide Ionis with a draft thereof at least two Business Days prior to the proposed publication thereof. Ionis may review and provide comments to Biogen and
                    the Parties shall discuss in good faith any such comments and seek to mutually agree on a final version of such proposed public announcement, press release or other public disclosure. Notwithstanding the foregoing, Ionis shall, pursuant
                    to this <u>Section 11.4.5</u>, retain final decision-making authority over (x) whether such proposed public announcement, press release or other public disclosure shall be issued or made, and (y) the content thereof, and in no event
                    shall Biogen issue any such public announcement, press release or other public disclosure under this <u>Section 11.4.5</u> except in the final version approved by Ionis.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">85</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z855f5b4329d74134838450401c6a255e" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2042239"></a><font style="font-weight: bold;">11.4.6.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>After the License Effective Date</u></font><font style="font-size: 10pt;">.&#160; After the License Effective Date with respect to a Product, subject to the
                    provisions of this <u>Section 11.4.6</u> and <u>Section 11.4.7</u>, Biogen will have the sole right to issue press releases, publish, present or otherwise disclose the progress and results regarding such Product to the public, which
                    shall be consistent with its practice with its other compounds and products; <font style="font-style: italic;">provided</font> that with respect to any proposed press release or other similar public communication by Biogen disclosing
                    regulatory discussions, the efficacy or safety data <font style="color: rgb(0, 0, 0);">or</font> results related to such Product or Biogen&#8217;s sales projections, (a) Biogen will submit such proposed communication to Ionis for review at
                    least two Business Days in advance of such proposed public disclosure, (b) Ionis will have the right to review and recommend changes to such communication, and (c) Biogen will in good faith consider any changes that are timely
                    recommended by Ionis; and <font style="font-style: italic;">provided</font>&#160;<font style="font-style: italic;">further</font> that, if Ionis conducted or co-conducted a Clinical Study that is the subject of such public announcement,
                    press release or other public disclosure, then any such public announcement, press release or other public disclosure shall be jointly issued by the Parties (unless Ionis expressly waives in writing its right to jointly issue such
                    public announcement, press release or other public disclosure). If Ionis desires to make any public announcement, issue a press release or make any other public disclosure with respect to a Clinical Study that was conducted or
                    co-conducted by Ionis, Ionis shall so notify Biogen and shall provide Biogen with a draft thereof at least two Business Days prior to the proposed publication thereof. Biogen may review and provide comments to Ionis and the Parties
                    shall discuss in good faith any such comments and seek to mutually agree on a final version of such proposed public announcement, press release or other public disclosure. Notwithstanding the foregoing, Biogen shall, pursuant to this <u>Section


                      11.4.6</u>, retain final decision-making authority over&#160; (i) whether such proposed public announcement, press release or other public disclosure shall be issued or made and (ii) the content thereof, and in no event shall Ionis issue
                    any such public announcement, press release or other public disclosure under this <u><a name="z_Hlk482173572"></a>Section 11.4.6</u> except in the final version approved by Biogen.</font></div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z753d0f85ae8e4a06a6565c6e613deef8" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2042387"></a><font style="font-weight: bold;">11.4.7.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Resolution of Disagreements Regarding Public Announcements</u></font><font style="font-size: 10pt;">.&#160; If the Parties cannot mutually agree on the need for
                    or content of any press release, presentation or other public disclosure under <u>Section 11.4.5</u> or <u>Section 11.4.6</u> that is intended to be jointly issued, then either Party may promptly refer for resolution to a &#8220;C&#8221; level
                    executive of each Party (e.g., a Party&#8217;s Chief Operating Officer, Chief Executive Officer or Chief Business Officer) or to one of the Party&#8217;s Neurology JSC members. During the at least two Business Day advance review period described in
                    <u>Section 11.4.5</u> or <u>Section 11.4.6</u> (as applicable), such &#8220;C&#8221; level executives or Neurology JSC members will meet in person at a mutually acceptable time and location or by means of telephone or video conference to discuss
                    in good faith and attempt to resolve such dispute.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">86</font></div>
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zc016cb53aad04a3db54157c45c80841e" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2042677"></a><font style="font-weight: bold;">11.4.8.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Scientific or Clinical Presentations for Products</u></font><font style="font-size: 10pt;">.&#160; Regarding any proposed scientific publications or public
                    presentations related to summaries of results from any Clinical Studies generated by Ionis or Biogen for a Product, the Parties acknowledge that scientific lead time is a key element of the value of the Products under this Agreement and
                    further agree to use Commercially Reasonable Efforts to control public scientific disclosures of the results of the Development activities under this Agreement to prevent any potential adverse effect of any premature public disclosure
                    of such results. The Parties will establish a procedure for publication review and each Party will first submit to the other Party through the Joint Patent Committee an early draft of all such publications or presentations, whether they
                    are to be presented orally or in written form, at least [***] days prior to submission for publication including to facilitate the publication of any summaries of Clinical Studies data and results as required on the clinical trial
                    registry of each respective Party. Each Party will review such proposed publication in order to avoid the unauthorized disclosure of a Party&#8217;s Confidential Information and to preserve the patentability of inventions arising from the
                    Collaboration Programs. If, during such [***] day period, the other Party informs such Party that its proposed publication contains Confidential Information of the other Party, then such Party will delete such Confidential Information
                    from its proposed publication. In addition, if at any time during such [***] day period, the other Party informs such Party that its proposed publication discloses inventions made by either Party in the course of the Development under
                    this Agreement that have not yet been protected through the filing of a patent application, or the public disclosure of such proposed publication could be expected to have a material adverse effect on any Patent Rights or Know-How
                    solely owned or Controlled by such other Party, then such Party will either (a) delay such proposed publication for up to [***] days from the date the other Party informed such Party of its objection to the proposed publication, to
                    permit the timely preparation and first filing of patent application(s) on the information involved or (b) remove the identified disclosures prior to publication.&#160; With respect to each Clinical Study, (i) if such Clinical Study is
                    Initiated prior to the date Biogen has been granted a license under <u>Section 4.1.1</u> with respect to the applicable Product, Ionis shall determine authorship or attribution with respect to any proposed publications regarding the
                    results of such Clinical Study and (ii) if such Clinical Study is Initiated after the date Biogen has been granted a license under <u>Section 4.1.1</u> with respect to the applicable Product, Biogen shall determine authorship or
                    attribution with respect to any proposed publications regarding the results of such Clinical Study, in each case ((i) and (ii)), by interpreting and applying the authorship and attribution principles of the International Committee of
                    Medical Journal Editors&#8217; <font style="font-style: italic;">Recommendations for the Conduct, Reporting, Editing and Publication of Scholarly Work in Medical Journals</font>, <font style="font-style: italic;">provided</font> that (A) in
                    each case, the Party that has the right to determine attribution or authorship in accordance with this <u>Section 11.4.8</u> shall consider in good faith any reasonable comments timely made by the other Party with respect thereto, (B)
                    any determination of authorship or attribution under this <u>Section 11.4.8</u> shall be in compliance with the requirements of the applicable journal of the proposed publication and (C) the Party that does not have the right to
                    determine attribution or authorship in accordance with this <u>Section 11.4.8</u> for any such proposed publication will have the right to have at least one author listed in such publication if such Party conducted or co-conducted such
                    Clinical Study.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z694715bac6984043aa5d1a7001f29ad8" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">11.4.9.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>SEC Filings</u></font><font style="font-size: 10pt;">.&#160; Each Party will give the other Party a reasonable opportunity to review all material filings with the
                    SEC describing the terms of this Agreement prior to submission of such filings, and will give due consideration to any reasonable comments by the non-filing Party relating to such filing.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zb1f25f363fae4981bfbcd7f2b675ea55" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2041811"></a><font style="font-weight: bold;">11.4.10.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Subsequent Disclosure</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding the foregoing, to the extent information regarding this Agreement or the
                    Product has already been publicly disclosed, either Party (or its Affiliates) may subsequently disclose the same information to the public without the consent of the other Party.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">87</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z80c95aeae4f84104b2aff7b0713c16e2" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Ref2041821"></a><font style="font-weight: bold;">11.4.11.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Acknowledgment</u></font><font style="font-size: 10pt;">.&#160; Each Party will acknowledge in any press release, public presentation or publication regarding the
                    Collaboration Programs or a Product, the other Party&#8217;s role in discovering and developing the Product or Discontinued Product, as applicable, that the Product is under license from Ionis and otherwise acknowledge the contributions from
                    the other Party, and each Party&#8217;s stock ticker symbol (<u>e.g.</u>, Nasdaq: IONS, BIIB).</font></div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z6116c382360247869069fb6573ccf3d9" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Biogen understands and acknowledges the importance to Ionis of continuing to be associated with the drugs it discovers under the Collaboration Programs. As such, Biogen agrees that it will use reasonable efforts to prominently
                  acknowledge Ionis&#8217; role in the discovery of a Product in any scientific, medical and other Product-related communications to the extent such communications address the research, discovery or commercialization of a Product, by prominently
                  including the words &#8220;<font style="font-style: italic;">Discovered by Ionis</font>&#8221; or equivalent language (collectively, the &#8220;<font style="font-weight: bold; font-style: italic;">Ionis Attribution Language</font>&#8221;) in any such
                  communications; <font style="font-style: italic;">provided</font>, <font style="font-style: italic;">however</font>, that Biogen shall have no obligation to include the Ionis Attribution Language in any of the following: (i)
                  communications or materials where such inclusion would be prohibited by Applicable Laws or applicable Third Party institutional, corporate or other policies; (ii) communications that Biogen does not control, such as publications with
                  non-Biogen lead authors; (iii) materials primarily focused on or directed to patients, or other materials where Biogen branding is not prominently featured; or (iv) abstracts or other communications with a word limitation, if Biogen
                  reasonably determines that such word limitation would preclude the inclusion of the Ionis Attribution Language; <font style="font-style: italic;">provided </font>that in each case, Biogen will use reasonable efforts to have the Ionis
                  Attribution Language included in any such communication, consistent with the efforts that Biogen uses to have statements regarding its own contributions to the Product included in such communication.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zb619f04c35c340be89091370ba243e4e" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ionis may include the Products (and identify Biogen as its partner for the Products) in Ionis&#8217; drug pipeline.</div>
              </td>
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        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">88</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-weight: bold;">ARTICLE 12</div>
        <div style="text-align: center; font-weight: bold;"><a name="z_Toc74126794"></a><a name="z_Toc74129763"></a><a name="z_Toc74160316"></a>MISCELLANEOUS</div>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="ze5ec1709be4b44debc7430cb73cc2cfa" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126795"></a><a name="z_Toc74129764"></a><a name="z_Toc74160317"></a><font style="font-weight: bold;">12.1.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Dispute Resolution</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zce451aa9658b4d43b4f4b8371db23d58" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">12.1.1.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Escalation</u></font><font style="font-size: 10pt;">.&#160; In the event of any Dispute (other than a Setoff Dispute, which Setoff Dispute will be resolved
                    pursuant to <u>Section 12.1.3</u>, or dispute regarding the construction, validity or enforcement of either Party&#8217;s Patent Rights, which disputes will be resolved pursuant to <u>Section 12.2</u>), either Party may, within [***] days
                    after either Party notifies the other Party that the Dispute has not been resolved (<font style="font-style: italic;">provided</font> that such notice cannot be given less than [***] days after the Dispute has arisen), make a written
                    request that the Dispute be referred for resolution to the Executive Vice President, Business Development of Biogen and the Chief Executive Officer of Ionis (the &#8220;<font style="font-weight: bold; font-style: italic;">Executives</font>&#8221;).&#160;


                    Within [***] days of either Party&#8217;s written request that the Dispute be referred to the Executives, the Executives will meet in person at a mutually acceptable time and location or by means of telephone or video conference to negotiate
                    a settlement of a Dispute.&#160; Each Party may elect to have such Party&#8217;s Neurology JSC representatives participate in such meeting, if desired, <font style="font-style: italic;">provided</font> that it provides the other Party with
                    reasonable advance notice of such intent so as to enable the other Party to have its Neurology JSC representatives also participate in such meeting, if desired.&#160; If the Executives fail to resolve the Dispute within such [***] day
                    period, then the Dispute will be referred to mediation under <u>Section 12.1.2</u>.</font></div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z8fdc9d0e9cd043f083bacfd7add73541" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">12.1.2.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Mediation</u></font><font style="font-size: 10pt;">.&#160; If a Dispute subject to <u>Section 12.1.1</u> cannot be resolved pursuant to <u>Section 12.1.1</u>,
                    or if neither Party timely makes the written request that the Dispute be referred to the Executives, the Parties will resolve any such Dispute in accordance with the dispute resolution procedures set forth in <font style="font-variant: small-caps;"><u>Schedule 12.1.2</u></font>.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zb8ace4d1cffb485287ed68f2a852d0d1" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">12.1.3.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Setoff Disputes</u></font><font style="font-size: 10pt;">.&#160; Setoff Disputes will be resolved in accordance with <u>Section 10.4.4(b)</u> and <font style="font-variant: small-caps;"><u>Schedule</u></font><u> 10.4.4(b)</u>.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z774424cb8c1a4106b91272935a99b4a9" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126796"></a><a name="z_Toc74129765"></a><a name="z_Toc74160318"></a><font style="font-weight: bold;">12.2.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Governing Law; Jurisdiction; Venue; Service of Process</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z7c87d82318fd4bd2a38c932061db3da6" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">12.2.1.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>This Agreement and any Dispute will be governed by and construed and enforced in accordance with the laws of the State of Delaware, U.S.A., without reference to conflicts of laws principles.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z44191b57b09c4a0896041754e4e402ca" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">12.2.2.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Subject to the provisions of <u>Section 12.1</u>, each Party by its execution hereof, (a) hereby irrevocably submits to the exclusive jurisdiction of the United States District Court for the District of Delaware (or, if but only if
                  such court lacks, or will not exercise, subject matter jurisdiction over the entirety of a Dispute, the Court of Chancery of the State of Delaware, or, if but only if such court lacks, or will not exercise, subject matter jurisdiction
                  over the entirety of a Dispute, the Superior Court of the State of Delaware, with respect to the Dispute) for the purpose of any Dispute arising between the Parties in connection with this Agreement (each, an &#8220;<font style="font-weight: bold; font-style: italic;">Action</font>&#8221;) and (b) hereby waives to the extent not prohibited by Applicable Law, and agrees not to assert, by way of motion, as a defense or otherwise, in any such Action, any claim that it is not subject
                  personally to the jurisdiction of the above-named courts, that venue in the above-named courts is improper, that its property is exempt or immune from attachment or execution, that any such Action brought in the above-named courts should
                  be dismissed on grounds of <font style="font-style: italic;">forum non conveniens</font>, should be transferred or removed to any court other than the above-named courts, or should be stayed by reason of the pendency of some other
                  proceeding in any other court other than the above-named courts, or that this Agreement or the subject matter hereof may not be enforced in or by such courts and (c) hereby agrees not to commence any such Action other than before the
                  above-named courts.&#160; Notwithstanding the previous sentence, a Party may commence any Action in a court other than the above-named court solely for the purpose of enforcing an order or judgment issued by the above-named court.</div>
              </td>
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        </table>
        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">89</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zdf9cab7925ce4e24b4581a1a050ead63" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">12.2.3.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Each Party hereby agrees that service of process: (a) made in any manner permitted by Delaware law, or (b) made by overnight express courier service (signature required), prepaid, at its address specified pursuant to <u>Section 12.8</u>,
                  will constitute good and valid service of process in any such Action and (c) waives and agrees not to assert (by way of motion, as a defense, or otherwise) in any such Action any claim that service of process made in accordance with
                  clause (a) or (b) does not constitute good and valid service of process.</div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z24a2309722f3466f9d06e03ebb51a7b1" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126797"></a><a name="z_Toc74129766"></a><a name="z_Toc74160319"></a><font style="font-weight: bold;">12.3.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Remedies</u></font><font style="font-size: 10pt;">.&#160; Notwithstanding anything to the contrary in this Agreement, each Party will be entitled to seek, in
                    addition to any other right or remedy it may have, at law or in equity, a temporary restraining order or a preliminary injunction, without the posting of any bond or other security, enjoining or restraining the other Party from any
                    violation or threatened violation of this Agreement, and the Parties agree that in the event of a threatened or actual material breach of this Agreement injunctive relief would be appropriate. Neither Party will be entitled to recover
                    any Losses relating to any matter arising under one provision of this Agreement to the extent that such Party has already recovered Losses with respect to such matter pursuant to other provisions of this Agreement (including recoveries
                    under <u>Section 9.1</u> or <u>Section 9.2</u>, and the offsets under <u>Section 6.8.3(c)</u>).&#160; Except for the offsets and credits explicitly set forth in <u>Section 6.10</u>, <u>Section 6.8.3(b)</u>, <u>Section 6.8.3(d)</u> and
                    <u>Section 10.4.4(b)</u>, neither Party will have the right to setoff any amount it is owed or believes it is owed against payments due or payable to the other Party under this Agreement.</font></div>
              </td>
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        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z4e05075152a248af9f675ebc19289abb" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126798"></a><a name="z_Toc74129767"></a><a name="z_Toc74160320"></a><font style="font-weight: bold;">12.4.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Assignment and Successors</u></font><font style="font-size: 10pt;">.&#160; Neither this Agreement nor any obligation of a Party hereunder may be assigned by
                    either Party without the consent of the other, which will not be unreasonably withheld, delayed or conditioned, except that each Party may assign this Agreement and the rights, obligations and interests of such Party, in whole or in
                    part, without the other Party&#8217;s consent, to any of its Affiliates, to any purchaser of all or substantially all of its assets or all or substantially all of its assets to which this Agreement relates or to any successor corporation
                    resulting from any merger, consolidation, share exchange or other similar transaction; <font style="font-style: italic;">provided</font> that if Biogen transfers or assigns this Agreement to [***] described in this Agreement, then
                    Biogen (or such Affiliate), will [***] Ionis under <u>ARTICLE 6</u> for the [***] such that Ionis receives [***] assignment. In addition, Ionis may assign or transfer its rights to receive payments under this Agreement (but no
                    liabilities), without Biogen&#8217;s consent, to an Affiliate or to a Third Party in connection with a payment factoring transaction. Any purported assignment or transfer made in contravention of this <u>Section 12.4</u> will be null and
                    void.</font></div>
              </td>
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        </table>
        <div>&#160;</div>
        <div style="text-align: justify; margin-left: 36pt;">The [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify; margin-left: 36pt;">To the extent Ionis utilizes a [***] in any year, Ionis will [***] to Biogen [***]. To assist Biogen in determining when a refund is due from Ionis pursuant to the foregoing sentence, beginning
          with the first Annual tax return for the year in which Biogen [***] payment under this <u>Section 12.4</u>, and each year thereafter (including, for clarity, all years in which Ionis utilizes a [***], supporting documentation for such [***].
          Notwithstanding the foregoing, if the [***].</div>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">90</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z06bef0f3038949c3ba83cef84264f15f" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126799"></a><a name="z_Toc74129768"></a><a name="z_Toc74160321"></a><font style="font-weight: bold;">12.5.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Change of Control</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="ze056231e803d497faeeb771512e58097" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">12.5.1.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Pre-Existing Competitive Programs of an Acquirer</u></font><font style="font-size: 10pt;">.&#160; If, at any time during the Agreement Term, a Change of Control
                    of a Party occurs involving a Person that, at the time of the execution of such Change of Control, is (A) developing or commercializing a (1) Competitive Product or (2) Competitive Indication Product within the Field (such pre-existing
                    Competitive Products and Competitive Indication Products, each, a &#8220;<font style="font-weight: bold; font-style: italic;">Pre-Existing Competitive Product</font>&#8221;) or (B) is engaged in a Competitive Program or Competitive Indication
                    Program (such pre-existing Competitive Programs and Competitive Indication Programs, each, a &#8220;<font style="font-weight: bold; font-style: italic;">Pre-Existing Competitive Program</font>,&#8221; and such Person being hereinafter referred to
                    as a &#8220;<font style="font-weight: bold; font-style: italic;">Competing Collaboration Acquirer</font>&#8221;), then in each case ((A) and (B)):</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z2295d5f6e97546cea2b0aaebdf46191e" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>such Party shall promptly provide written notice to the other Party of such Change of Control;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z20beddb670f247f598dab68a4daecf3d" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>if such Change of Control involved Ionis, then Biogen may elect that some or all of the Biogen Reduced Participation and Information Obligations will apply to the Collaboration Programs to which the Pre-Existing Competitive Product or
                  Pre-Existing Competitive Program relate;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z82dea041c5a74210a33ee4b3f15ec45d" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>such Party shall conduct activities pursuant to <u>Section 12.6</u> to separate its Development activities under this Agreement from its development activities relating to any Pre-Existing Competitive Product(s) and Pre-Existing
                  Competitive Program(s); and</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z517e4e753eb74459915431efc4c365d3" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>the research, development, manufacture or commercialization of any Pre-Existing Competitive Product(s) by a Competing Collaboration Acquirer will not be a violation of such Party&#8217;s exclusivity covenants under <u>Section 2.1.1</u> and
                  <u>Section 12.5.2(a)</u> will not apply to any such Pre-Existing Competitive Product or Pre-Existing Competitive Program; <font style="font-style: italic;">provided</font> that the conditions of<u> Section 12.5.1(a)</u> and <u>Section
                    12.5.1(c)</u> are satisfied.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z9fd849aa2bc14569bffb527eb0a212dd" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">12.5.2.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Acquired Competitive Programs; Acquired Associated Programs</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z29351b2fde414c2cbfcf4a2b7206b587" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>If, at any time during the Agreement Term, either Party acquires a Third Party or a portion of the business of a Third Party (whether by merger, stock purchase or purchase of assets) that is, prior to such acquisition, engaged in
                  discovering, researching, developing or commercializing a Competitive Product within the Field or is engaged in a Competitive Program, in each case that would violate the provisions of <u>ARTICLE 2</u> if conducted by such Party (such
                  acquired Competitive Product an &#8220;<font style="font-weight: bold; font-style: italic;">Acquired Competitive Product</font>&#8221; and such acquired Competitive Program an &#8220;<font style="font-weight: bold; font-style: italic;">Acquired Competitive
                    Program</font>&#8221;), then the limited continuation of the research, development, manufacture or commercialization of the Acquired Competitive Product(s) or Acquired Competitive Programs by the acquiring Party as permitted in this <u>Section








                    12.5.2(a)</u> in a manner that would have been in the ordinary course of business of such Third Party will not be a violation of such acquiring Party&#8217;s exclusivity covenants under <u>Section 2.1.1</u>; <font style="font-style: italic;">provided </font>that following the closing of such acquisition, the conditions set forth in <u>Sections 12.5.2(a)(i)</u> through <u>12.5.2(a)(iv)</u> are met:</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">91</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zbef426a2e4b848e287c39581ae6bcb87" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(i)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Such acquiring Party shall promptly provide written notice to the other Party of such acquisition;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zfab8f1e92d9644ac93dfee3bf73e4d0d" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(ii)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Such acquiring Party shall use reasonable efforts to divest all such Acquired Competitive Products and Acquired Competitive Programs promptly following the closing of such acquisition, and in any event such Party shall complete such
                  divestment within [***] after the closing of such acquisition (the &#8220;<font style="font-weight: bold; font-style: italic;">Collaboration Divestiture Period</font>&#8221;); <font style="font-style: italic;">provided </font>that such
                  Collaboration Divestiture Period shall be extended, and such Party shall not be in breach of this <u>Section 12.5.2(a)</u> if, at the expiration thereof (and any extensions thereto), such Party provides competent evidence of reasonable
                  ongoing efforts to divest such Acquired Competitive Products and Acquired Competitive Programs; <font style="font-style: italic;">provided</font>&#160;<font style="font-style: italic;">further</font> that such Party shall cease all
                  development and commercialization activities with respect to all such Acquired Competitive Products and Acquired Competitive Programs if such Party has not completed such divestiture within [***] after the closing of such acquisition (it
                  being understood that such Party may thereafter continue its efforts to divest such asset);</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zf68b4629d9fe4945b95efda9395f53bf" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(iii)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>During such divestiture period, the acquiring Party shall comply with <u>Section 12.6</u> to separate its Development activities under this Agreement from its development activities relating to any Acquired Competitive Product or
                  Acquired Competitive Program; and</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zf9a79afe4f9b47708c09bad633461a18" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 108pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(iv)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Neither Party nor its Affiliates may acquire a Competitive Product or a Competitive Program on a standalone basis.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z3c618a8529104523af77c2f07f1a5045" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>If Ionis is the acquiring Party of an Acquired Competitive Product or Acquired Competitive Program, then during the Collaboration Divestiture Period until Ionis [***], Biogen may elect that [***].</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z54105375f92a4eaca27ede799fd96cc1" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>In addition, without limiting <u>Section 12.5.2(a)(iv)</u>, if at any time during the Agreement Term, (i) Ionis acquires a Third Party or a portion of the business of a Third Party (whether by merger, stock purchase or purchase of
                  assets) that is, prior to such acquisition, engaged (A) in [***] (an &#8220;<font style="font-weight: bold; font-style: italic;">Associated Product</font>&#8221;) or any Competitive Indication Product, or (B) is engaged in [***] (an &#8220;<font style="font-weight: bold; font-style: italic;">Associated Program</font>&#8221;) or a Competitive Indication Program, (ii) Ionis or an Ionis Affiliate [***] or (iii) Ionis or an Ionis Affiliate [***]<font style="font-weight: bold; font-style: italic;">&#160;</font>then, in each case ((i) through (iii)) with respect to any Collaboration Program directed to the Collaboration Target to which the Associated Product, Associated Program, Competitive Product or Competitive Program is
                  directed and with respect to any Collaboration Program intended for the same indication as the Competitive Indication Product or the Competitive Indication Program, Biogen may elect that [***] and Ionis shall comply with the same
                  procedures as under <u>Section 12.6</u> to separate its Development activities under this Agreement from its development activities relating to any such Associated Product, Associated Program, Competitive Product, Competitive Program,
                  Competitive Indication Product or Competitive Indication Program.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">92</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z28231ba371a9473d931da99fd20c7600" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126800"></a><a name="z_Toc74129769"></a><a name="z_Toc74160322"></a><font style="font-weight: bold;">12.6.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Protective Provisions</u></font><font style="font-size: 10pt;">.&#160; At any time while (a) the Party involved in a Change of Control with a Competing
                    Collaboration Acquirer, (b) the Party with an Acquired Competitive Product or Acquired Competitive Program or (c) Ionis (in cases where Ionis otherwise has an Associated Product, Associated Program, Competitive Product, Competitive
                    Program, Competitive Indication Product or Competitive Indication Program) is conducting Development activities under this Agreement, then, in each case ((a) through (c)) such Party (as applicable under clause (a), (b) or (c)) must
                    separate such Development activities from its or its Affiliates&#8217; other development activities relating to any such Competitive Product or Competitive Program, and, in the case of Ionis, from any such Associated Product, Associated
                    Program, Competitive Indication Product or Competitive Indication Program, as applicable (such other development activities, &#8220;<font style="font-weight: bold; font-style: italic;">Competing Development Activities</font>&#8221;).&#160; To that end,
                    and subject to the licenses granted to each Party (as applicable) under <u>Section 4.3</u> or <u>Section 4.4</u>, any such Party will, and (if applicable) will cause the Competing Collaboration Acquirer to, (i) establish separate
                    teams to conduct Development activities under this Agreement and such Competing Development Activities, (ii) prevent any Confidential Information relating to the Development, Manufacture or Commercialization of any applicable Product
                    (including Know-How) from being disclosed to, or used by, individuals performing such Competing Development Activities and (iii) not use or reference in the development, manufacture or commercialization of the Competitive Product any
                    Know-How that is Confidential Information or conduct any activities Covered by any Patent Rights, in each case, Controlled by the Party involved in the Change of Control or the acquisition or its Affiliates prior to the effective date
                    of the Change of Control or the acquisition.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z0be4f7954bdd40bbbfde49c9f8604e54" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126801"></a><a name="z_Toc74129770"></a><a name="z_Toc74160323"></a><font style="font-weight: bold;">12.7.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Force Majeure</u></font><font style="font-size: 10pt;">.&#160; No Party will be held responsible to the other Party nor be deemed to be in default under, or in
                    breach of any provision of, this Agreement for failure or delay in performing any obligation of this Agreement when such failure or delay is due to force majeure, and without the fault or negligence of the Party so failing or delaying.
                    For purposes of this Agreement, force majeure means a cause beyond the reasonable control of a Party, which may include acts of God; acts, regulations, or Laws of any government; war; terrorism; civil commotion; fire, flood, earthquake,
                    tornado, tsunami, explosion or storm; pandemic; epidemic and failure of public utilities or common carriers.&#160; In such event the Party so failing or delaying will immediately notify the other Party of such inability and of the period for
                    which such inability is expected to continue. The Party giving such notice will be excused from such of its obligations under this Agreement as it is thereby disabled from performing for so long as it is so disabled for up to a maximum
                    of 90 days, after which time the Parties will negotiate in good faith any modifications of the terms of this Agreement that may be necessary to arrive at an equitable solution, unless the Party giving such notice has set out a
                    reasonable timeframe and plan to resolve the effects of such force majeure and executes such plan within such timeframe.&#160; To the extent possible, each Party will use reasonable efforts to minimize the duration of any force majeure.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">93</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z6cda6890034645fda66234c83944836a" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126802"></a><a name="z_Toc74129771"></a><a name="z_Toc74160324"></a><font style="font-weight: bold;">12.8.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Notices</u></font><font style="font-size: 10pt;">.&#160; Any notice or request required or permitted to be given under or in connection with this Agreement will
                    be deemed to have been sufficiently given if in writing and personally delivered or sent by certified mail (return receipt requested) electronic mail transmission (receipt verified), or overnight express courier service (signature
                    required), prepaid, to the Party for which such notice is intended, at the address set forth for such Party below:</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" border="0" align="center" id="z27cf813faf76470aaab15a1a87c58ec5" style="border-collapse: collapse; width: 80%; color: #000000; font-family: 'Times New Roman'; font-size: 10pt; text-align: left;">

            <tr>
              <td style="width: 40%; vertical-align: top;">
                <div>If to Ionis, addressed to:</div>
              </td>
              <td style="width: 40%; vertical-align: top;">
                <div>Ionis Pharmaceuticals, Inc.</div>
                <div>2855 Gazelle Court</div>
                <div>Carlsbad, CA&#160; 92010</div>
                <div>Attention:&#160; Chief Executive Officer</div>
                <div>E-mail: [***<font style="color: rgb(0, 0, 0);">]</font></div>
              </td>
            </tr>
            <tr>
              <td style="width: 40%; vertical-align: top;">&#160;</td>
              <td style="width: 40%; vertical-align: top;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 40%; vertical-align: top;">
                <div>with a copy to:</div>
              </td>
              <td style="width: 40%; vertical-align: top;">
                <div>Ionis Pharmaceuticals, Inc.</div>
                <div>2855 Gazelle Court</div>
                <div>Carlsbad, CA&#160; 92010</div>
                <div>Attention:&#160; General Counsel</div>
                <div>E-mail: [***<font style="color: rgb(0, 0, 0);">]</font></div>
              </td>
            </tr>
            <tr>
              <td style="width: 40%; vertical-align: top;">&#160;</td>
              <td style="width: 40%; vertical-align: top;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 40%; vertical-align: top;">
                <div>If to Biogen, addressed to:</div>
              </td>
              <td style="width: 40%; vertical-align: top;">
                <div>Biogen MA Inc.</div>
                <div>225 Binney Street</div>
                <div>Cambridge, MA&#160; 02142</div>
                <div>Attention:&#160; Chief Legal Officer</div>
                <div>E-mail:&#160; [***<font style="color: rgb(0, 0, 0);">]</font></div>
              </td>
            </tr>
            <tr>
              <td style="width: 40%; vertical-align: top;">&#160;</td>
              <td style="width: 40%; vertical-align: top;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 40%; vertical-align: top;">
                <div>with a copy to:</div>
              </td>
              <td style="width: 40%; vertical-align: top;">
                <div>Ropes &amp; Gray LLP</div>
                <div>Prudential Tower</div>
                <div>800 Boylston Street</div>
                <div>Boston, MA&#160; 02199-3600</div>
                <div>Attention:&#160; Hannah Freeman</div>
                <div>E-mail:&#160; hannah.freeman@ropesgray.com</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="text-align: justify; margin-left: 36pt;">or to such other address for such Party as it will have specified by like notice to the other Party; <font style="font-style: italic;">provided </font>that notices of a change of address will
          be effective only upon receipt thereof.&#160; If delivered personally or by electronic mail transmission, the date of delivery will be deemed to be the date on which such notice or request was given.&#160; If sent by overnight express courier service, the
          date of delivery will be deemed to be the next Business Day after such notice or request was deposited with such service.&#160; If sent by certified mail, the date of delivery will be deemed to be the third Business Day after such notice or request
          was deposited with the U.S. Postal Service.</div>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z72704cf8672743fabc1f8673e9991d9a" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126803"></a><a name="z_Toc74129772"></a><a name="z_Toc74160325"></a><font style="font-weight: bold;">12.9.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Export Clause</u></font><font style="font-size: 10pt;">.&#160; Each Party acknowledges that the Laws and regulations of the United States restrict the export and
                    re-export of commodities and technical data of United States origin.&#160; Each Party agrees that it will not export or re-export restricted commodities or the technical data of the other Party in any form without the appropriate United
                    States and foreign government licenses.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">94</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="z2c906e700794447987fb1afbff4aba78" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126804"></a><a name="z_Toc74129773"></a><a name="z_Toc74160326"></a><font style="font-weight: bold;">12.10.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Waiver</u></font><font style="font-size: 10pt;">.&#160; Neither Party may waive or release any of its rights or interests in this Agreement except in writing.&#160;
                    The failure of either Party to assert a right hereunder or to insist upon compliance with any term or condition of this Agreement will not constitute a waiver of that right or excuse a similar subsequent failure to perform any such term
                    or condition.&#160; No waiver by either Party of any condition or term in any one or more instances will be construed as a continuing waiver or subsequent waiver of such condition or term or of another condition or term.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z74ee2b02353644d5a6a22c02c2181517" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126805"></a><a name="z_Toc74129774"></a><a name="z_Toc74160327"></a><font style="font-weight: bold;">12.11.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Severability</u></font><font style="font-size: 10pt;">.&#160; If any provision hereof should be held invalid, illegal or unenforceable in any jurisdiction, then
                    the Parties will negotiate in good faith a valid, legal and enforceable substitute provision that most nearly reflects the original intent of the Parties and all other provisions hereof will remain in full force and effect in such
                    jurisdiction and will be liberally construed in order to carry out the intentions of the Parties hereto as nearly as may be possible. Such invalidity, illegality or unenforceability will not affect the validity, legality or
                    enforceability of such provision in any other jurisdiction.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="za32784d3e7dc46faa34c0793db01b8f2" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126806"></a><a name="z_Toc74129775"></a><a name="z_Toc74160328"></a><font style="font-weight: bold;">12.12.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Entire Agreement</u></font><font style="font-size: 10pt;">.&#160; This Agreement, together with the Schedules and Appendices hereto (including the </font><font style="font-size: 10pt;">[***] Letter), amends and restates the Original Agreement, sets forth all the covenants, promises, agreements, warranties, representations, conditions and understandings between the Parties with respect to the
                    subject matter hereof, fully supersedes the Original Agreement for the period commencing on the Amendment Date and continuing thereafter and supersedes and terminates all prior agreements and understanding between the Parties with
                    respect to the subject matter hereof.&#160; Without limiting the foregoing, this Agreement supersedes that certain side letter between the Parties, dated as of October 9, 2015, relating to drug substance process development and
                    manufacturing, solely to the extent such side letter relates to Collaboration Programs under this Agreement.&#160; For clarity, such side letter shall remain in full force and effect with respect to the Ionis/Biogen Additional Agreements.&#160;
                    For the avoidance of doubt, this Agreement in no way supersedes, modifies or otherwise affects any of the Ionis/Biogen Additional Agreements, which will remain in full force and effect in accordance with each of their respective terms.
                    There are no covenants, promises, agreements, warranties, representations, conditions or understandings, either oral or written, between the Parties with respect to the subject matter hereof other than as set forth herein and therein.&#160;
                    No subsequent alteration, amendment, change or addition to this Agreement will be binding upon the Parties hereto unless reduced to writing and signed by the respective authorized officers of the Parties.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z5a595ed908e041a7b43f1bc671edcd14" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126807"></a><a name="z_Toc74129776"></a><a name="z_Toc74160329"></a><font style="font-weight: bold;">12.13.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Independent Contractors</u></font><font style="font-size: 10pt;">.&#160; Nothing herein will be construed to create any relationship of employer and employee,
                    agent and principal, partnership or joint venture between the Parties. Each Party is an independent contractor. Neither Party will assume, either directly or indirectly, any liability of or for the other Party.&#160; Neither Party will have
                    the authority to bind or obligate the other Party and neither Party will represent that it has such authority.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z42291a7176ce47428efbea39abe1c326" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126808"></a><a name="z_Toc74129777"></a><a name="z_Toc74160330"></a><font style="font-weight: bold;">12.14.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Interpretation</u></font><font style="font-size: 10pt;">.&#160; Except as otherwise explicitly specified to the contrary, (a) references to a section, exhibit or
                    schedule means a section of, or schedule or exhibit to this Agreement, unless another agreement is specified, (b) the word &#8220;including&#8221; (in its various forms) means &#8220;including without limitation,&#8221; (c) the words &#8220;shall&#8221; and &#8220;will&#8221; have
                    the same meaning, (d) references to a particular statute or regulation include all rules and regulations thereunder and any predecessor or successor statute, rules or regulation, in each case as amended or otherwise modified from time
                    to time, (e) words in the singular or plural form include the plural and singular form, respectively, (f) references to a particular Person include such Person&#8217;s successors and assigns to the extent not prohibited by this Agreement, (g)
                    unless otherwise specified, &#8220;$&#8221; is in reference to United States dollars, and (h) the headings contained in this Agreement, in any exhibit or schedule to this Agreement and in the table of contents to this Agreement are for convenience
                    only and will not in any way affect the construction of or be taken into consideration in interpreting this Agreement.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">95</font></div>
          <div style="page-break-after: always;" id="DSPFPageBreak">
            <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <table cellspacing="0" cellpadding="0" id="zb8ba4a3d8687435aa17ee4c4b93ca600" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126809"></a><a name="z_Toc74129778"></a><a name="z_Toc74160331"></a><font style="font-weight: bold;">12.15.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Books and Records</u></font><font style="font-size: 10pt;">.&#160; Any books and records to be maintained under this Agreement by a Party or its Affiliates or
                    Sublicensees will be maintained in accordance with U.S. Generally Accepted Accounting Principles (or any successor standard), consistently applied.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zaa85259b0b7e4430a0a1208039fe64f0" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126810"></a><a name="z_Toc74129779"></a><a name="z_Toc74160332"></a><font style="font-weight: bold;">12.16.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Further Actions</u></font><font style="font-size: 10pt;">.&#160; Each Party will execute, acknowledge and deliver such further instruments, and do all such other
                    acts, as may be necessary or appropriate in order to carry out the expressly stated purposes and the clear intent of this Agreement.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zd73bc8e023db408a8bf80fd56268b528" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126811"></a><a name="z_Toc74129780"></a><a name="z_Toc74160333"></a><font style="font-weight: bold;">12.17.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Construction of Agreement</u></font><font style="font-size: 10pt;">.&#160; The terms and provisions of this Agreement represent the results of negotiations
                    between the Parties and their representatives, each of which has been represented by counsel of its own choosing, and neither of which has acted under duress or compulsion, whether legal, economic or otherwise. Accordingly, the terms
                    and provisions of this Agreement will be interpreted and construed in accordance with their usual and customary meanings, and each of the Parties hereto hereby waives the application in connection with the interpretation and
                    construction of this Agreement of any rule of law to the effect that ambiguous or conflicting terms or provisions contained in this Agreement will be interpreted or construed against the Party whose attorney prepared the executed draft
                    or any earlier draft of this Agreement.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z409117f1bd694476a4634c9508c06384" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126812"></a><a name="z_Toc74129781"></a><a name="z_Toc74160334"></a><font style="font-weight: bold;">12.18.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Supremacy</u></font><font style="font-size: 10pt;">.&#160; In the event of any express conflict or inconsistency between this Agreement and any Schedule or
                    Appendix hereto, the terms of this Agreement will apply.&#160; The Parties understand and agree that the Schedules and Appendices hereto are not intended to be the final and complete embodiment of any terms or provisions of this Agreement,
                    and are to be updated from time to time during the Agreement Term, as appropriate and in accordance with the provisions of this Agreement.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z391ae93f808f428990930631a85a407b" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126813"></a><a name="z_Toc74129782"></a><a name="z_Toc74160335"></a><font style="font-weight: bold;">12.19.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Counterparts</u></font><font style="font-size: 10pt;">.&#160; This Agreement may be signed in counterparts, each of which will be deemed an original,
                    notwithstanding variations in format or file designation that may result from the electronic transmission, storage and printing of copies of this Agreement from separate computers or printers.&#160; Facsimile signatures and signatures
                    transmitted via electronic mail in PDF format will be treated as original signatures.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zf1881f7f9fc7433f8e690f6917014def" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt; vertical-align: top;"><a name="z_Toc74126814"></a><a name="z_Toc74129783"></a><a name="z_Toc74160336"></a><font style="font-weight: bold;">12.20.</font></td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Compliance with Laws</u></font><font style="font-size: 10pt;">.&#160; Each Party will, and will ensure that its Affiliates and Sublicensees will, comply with all
                    relevant Laws and regulations in exercising its rights and fulfilling its obligations under this Agreement.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="text-align: center; font-style: italic;">[SIGNATURE PAGE FOLLOWS]</div>
        <div>&#160;</div>
        <div style="text-align: center;">* - * - * - *</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">96</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify; text-indent: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">IN WITNESS WHEREOF</font><font style="font-size: 10pt;">, the Parties have caused this Agreement to be executed by their
            representatives thereunto duly authorized as of the Amendment Date.</font></div>
        <div>&#160;</div>
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            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div style="text-align: justify; font-weight: bold;">BIOGEN MA INC.</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div style="text-align: justify;">By:<u>/s/Anabella Villalobos</u></div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div style="text-align: justify;">Name: Anabella Villalobos</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div style="text-align: justify;">Title: Senior Vice President, Biotherapeutics &amp; Medicinal Sciences</div>
              </td>
            </tr>

        </table>
        <div><br>
        </div>
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            <div>
              <div style="text-align: center; font-variant: small-caps; font-weight: bold;">Signature Page to Amended and Restated Neurology Drug Discovery and Development</div>
              <div style="text-align: center; font-variant: small-caps; font-weight: bold;">Collaboration, Option and License Agreement</div>
            </div>
          </div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
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        <div style="text-align: justify; text-indent: 36pt; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">IN WITNESS WHEREOF</font><font style="font-size: 10pt;">, the Parties have caused this Agreement to be executed by their
            representatives thereunto duly authorized as of the Amendment Date.</font></div>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z8bc812dbb4274c01920369f7abd4b964" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;">

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              <td style="width: 100%; vertical-align: top;">
                <div style="text-align: justify; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div style="text-align: justify;">By:<u>/s/Brett Monia</u></div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div style="text-align: justify;">Name:&#160; Brett Monia</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div style="text-align: justify;">Title: Chief Executive Officer</div>
              </td>
            </tr>

        </table>
        <div><br>
        </div>
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            <div>
              <div style="font-variant: small-caps; font-weight: bold;">
                <div style="text-align: center; font-variant: small-caps; font-weight: bold;">Signature Page to Amended and Restated Neurology Drug Discovery and Development</div>
                <div style="text-align: center; font-variant: small-caps; font-weight: bold;">Collaboration, Option and License Agreement</div>
              </div>
            </div>
          </div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
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          </div>
        </div>
        <div style="text-align: center; font-weight: bold;"><u>List of Appendices and Schedules</u></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Appendix 1</u></font><font style="font-size: 10pt;"> &#8211; Definitions</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Appendix 2</u></font><font style="font-size: 10pt;"> &#8211; Development Candidate Checklist</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Appendix 3</u></font><font style="font-size: 10pt;"> &#8211; Form of Side Letter</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Appendix 4</u></font><font style="font-size: 10pt;"> &#8211;</font><font style="font-size: 10pt;">[***] Letter</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><u><font style="font-size: 10pt; font-variant: small-caps;">Schedule</font><font style="font-size: 10pt;">&#160;</font></u><font style="font-size: 10pt;"><u>1.5.2(b)</u> - Apportionment of Certain Milestone Payments and
            Biogen-Approved Costs</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule 1.11.1</u></font><font style="font-size: 10pt; font-variant: small-caps;"> &#8211; </font><font style="font-size: 10pt;">Neurology JSC Governance</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule 1.11.5</u></font><font style="font-size: 10pt;"> &#8211; Alliance Management Activities</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule 4.6.3</u></font><font style="font-size: 10pt;"> &#8211; Ionis&#8217; Fully Absorbed Cost of Goods Methodology</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule 5.1.1</u></font><font style="font-size: 10pt;"> &#8211; Specific Performance Milestone Events</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule </u></font><font style="font-size: 10pt;"><u>6.6.2(f)</u></font><font style="font-size: 10pt; font-variant: small-caps;"> &#8211; </font><font style="font-size: 10pt;">Royalty Calculation Examples</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule </u></font><font style="font-size: 10pt;"><u>6.6.2(g)</u></font><font style="font-size: 10pt;"> &#8211; Allocation of Net Sales</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 6.8.1</u></font><font style="font-size: 10pt;"> &#8211; Certain Ionis In-License Agreements</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 8.2.4(a)</u></font><font style="font-size: 10pt;"> &#8211; Ionis Core Technology Patents</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 8.2.4(b)</u></font><font style="font-size: 10pt;"> &#8211; Ionis Manufacturing and Analytical Patents</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 8.2.4(c)</u></font><font style="font-size: 10pt;"> &#8211; Ionis Product-Specific Patents</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 8.2.8</u></font><font style="font-size: 10pt;"> &#8211; Prior Agreements</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 10.4.4(b)</u></font><font style="font-size: 10pt;"> &#8211; Advisory Panel Regarding Setoff Disputes</font></div>
        <div>&#160;</div>
        <div style="font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 12.1.2</u></font><font style="font-size: 10pt;"> &#8211; Mediation</font></div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">99</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Appendix 1</u></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">DEFINITIONS</div>
        <div>&#160;</div>
        <div style="text-align: justify;">For purposes of this Agreement, the following capitalized terms will have the following meanings:</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Accelerated Target</font>&#8221; has the meaning set forth in <u>Section 2.3.</u></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Acceptance</font>&#8221; means, with respect to an NDA, MAA or JNDA filed for a Product, (a) in the United States, the receipt of written notice from the FDA in
          accordance with 21 C.F.R. &#167;314.101(a)(2) that such NDA is officially &#8220;<font style="font-style: italic;">filed</font>,&#8221; (b) in the European Union, receipt by Biogen of written notice of acceptance by the EMA of such MAA for filing under the
          centralized European procedure in accordance with any feedback received from EU Regulatory Authorities; <font style="font-style: italic;">provided </font>that if the centralized filing procedure is not used, then Acceptance will be determined
          upon the acceptance of such MAA by the applicable Regulatory Authority in a Major Market in the EU, (c) in any Major Market in Europe that is not a European Union country, receipt by Biogen of written notice of acceptance by the applicable
          Regulatory Authority of such MAA for filing in such country, and (d) in Japan, receipt by Biogen of written notice of acceptance of filing of such JNDA from the Koseisho<font style="color: rgb(0, 0, 0);">&#160;</font>(<u>i.e.</u><font style="font-style: italic;">,</font> the Japanese Ministry of Health and Welfare, or any successor agency thereto).</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Acquired Competitive Product</font>&#8221; has the meaning set forth in <u>Section 12.5.2(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Acquired Competitive Program</font>&#8221; has the meaning set forth in <u>Section 12.5.2(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Action</font>&#8221; has the meaning set forth in <u>Section 12.2.2.</u></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Actual Biogen-Approved Costs</font>&#8221; has the meaning set forth in <u>Section 1.8.5.</u></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Additional Core IP</font>&#8221; means Third Party intellectual property that is necessary to [***<u>]</u>. For clarity, Additional Core IP does not include any
          Patent Rights claiming (or intellectual property related to) [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Additional Plan Costs</font>&#8221; means [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Affiliate</font>&#8221; of an entity means any corporation, firm, partnership or other entity which directly or indirectly through one or more intermediaries
          controls, is controlled by or is under common control with a Party to this Agreement. An entity will be deemed to control another entity if it (a) owns, directly or indirectly, at least 50% of the outstanding voting securities or capital stock
          (or such lesser percentage which is the maximum allowed to be owned by a foreign corporation in a particular jurisdiction) of such other entity, or has other comparable ownership interest with respect to any entity other than a corporation; or
          (b) has the power, whether pursuant to contract, ownership of securities or otherwise, to direct the management and policies of the entity. For clarity, Regulus Therapeutics Inc. will not be deemed an &#8220;<font style="font-style: italic;">Affiliate</font>&#8221;
          of Ionis for the purposes of this Agreement under any circumstances.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Agreement</font>&#8221; has the meaning set forth in the Preamble of this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Agreement</font>&#160;<font style="font-weight: bold; font-style: italic;">Term</font>&#8221; has the meaning set forth in <u>Section 10.1</u>.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">100</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Alliance Manager</font>&#8221; has the meaning set forth in <u>Section 1.11.5</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Amendment Date</font>&#8221; has the meaning set forth in the Preamble of this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">ANDA</font>&#8221; means an Abbreviated New Drug Application and all amendments and supplements thereto filed with the FDA, or the equivalent application filed with
          any equivalent agency or governmental authority outside the U.S. (including any supra-national agency such as the EMA in the EU).</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Annual</font>&#8221; means the period covering a Calendar Year or occurring once per Calendar Year, as the context requires.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">API</font>&#8221; means the bulk active pharmaceutical ingredient manufactured in accordance with cGMP for a Product.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Applicable Law</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Law</font>&#8221; means all applicable laws, statutes, rules, regulations and other
          pronouncements having the effect of law of any federal, national, multinational, state, provincial, county, city or other political subdivision, agency or other body, domestic or foreign, including any applicable rules, regulations, guidelines,
          or other requirements of the Regulatory Authorities that may be in effect from time to time.</div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Approval</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221;
            means, with respect to a </font><font style="font-size: 10pt;">Product <font style="color: rgb(0, 0, 0);">in any regulatory jurisdiction, approval from the applicable </font>Regulatory Authority <font style="color: rgb(0, 0, 0);">sufficient
              for the </font>manufacture<font style="color: rgb(0, 0, 0);">, distribution, use, marketing and sale of such </font>Product <font style="color: rgb(0, 0, 0);">in such jurisdiction in accordance with </font>Applicable Laws<font style="color: rgb(0, 0, 0);">. In jurisdictions where the applicable </font>Regulatory Authority <font style="color: rgb(0, 0, 0);">sets the pricing or reimbursement authorizations necessary for the general marketing and sale of such </font>Product


            <font style="color: rgb(0, 0, 0);">in the marketplace, </font>Approval <font style="color: rgb(0, 0, 0);">will not be deemed to have occurred if the final approval to market and sell such </font>Product <font style="color: rgb(0, 0, 0);">is
              being withheld because </font>Biogen <font style="color: rgb(0, 0, 0);">(or its </font>Affiliate <font style="color: rgb(0, 0, 0);">or </font>Sublicensee<font style="color: rgb(0, 0, 0);">) and the Regulatory Authority have not yet
              determined pricing or reimbursement even if all other approvals, licenses, registrations or authorizations necessary for marketing, sale or use of such </font>Product <font style="color: rgb(0, 0, 0);">in such jurisdiction have been
              obtained. &#8220;</font>Approval<font style="color: rgb(0, 0, 0);">&#8221; does not include authorization by a </font>Regulatory Authority <font style="color: rgb(0, 0, 0);">to conduct named patient, compassionate use or other similar activities.</font></font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">ASO</font>&#8221; means an Oligonucleotide compound, or analog, variant, mimic, or mimetic thereof, having a sequence that is at least six bases long and that
          modulates expression or splicing of a gene target via the binding, partially or wholly, of such compound to the RNA of such gene target, excluding any double-stranded Oligonucleotide compounds that are designed to act through the RNA-induced
          silencing complex.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Associated Product</font>&#8221; has the meaning set forth in <u>Section 12.5.2(c)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Associated Program</font>&#8221; has the meaning set forth in <u>Section 12.5.2(c)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Audit Report</font>&#8221; has the meaning set forth in <u>Section 6.10</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Bankruptcy Code</font>&#8221; has the meaning set forth in <u>Section 10.2.7(b)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen</font>&#8221; has the meaning set forth in the Preamble of this Agreement.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">101</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Activities</font>&#8221; means, under any Collaboration Program Research Plan or Development Plan, any and all research, pre-clinical and/or clinical activities that Biogen agrees to
          conduct; <font style="font-style: italic;">provided</font> that Biogen will be deemed to have agreed to conduct any activities designated as Biogen Activities under any Collaboration Program Research Plan or Development Plan it approves.</div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">Biogen-Approved Changes</font>&#8221; means any changes (including number of subjects, duration of dosing, additional studies, additional endpoints, additional analysis, etc.) to the applicable
          Development Plan for a Product that are requested by either Party after the Parties have set the initial Cost Estimates for such Development Plan under <u>Section 1.5.2(b)</u>, and (i) required by a Regulatory Authority or (ii) agreed to be paid
          for by Biogen.</div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">Biogen-Approved Costs</font>&#8221; has the meaning set forth in <u>Section 1.8</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen&#8217;s FTE Cost</font>&#8221; means the FTE Rate applicable to Biogen, <font style="font-style: italic;">multiplied</font> by the applicable number of FTEs.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Full Royalty</font>&#8221; has the meaning set forth in <u>Section 6.6.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Know-How</font>&#8221; means any Know-How owned, used, developed by, or licensed to Biogen or its Affiliates, in each case to the extent Controlled by Biogen
          or its Affiliates on the Effective Date or at any time during the Agreement Term, <font style="font-style: italic;">but specifically excluding</font> the Biogen Program Know-How.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Manufacturing Program Patent</font>&#8221; has the meaning set forth in <u>Section 4.8.5(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Patents</font>&#8221; means any Patent Rights included in the Biogen Technology.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Product-Specific Patents</font>&#8221; means <font style="color: rgb(0, 0, 0);">all </font>Product-Specific Patents owned, used, developed by, or licensed to
          Biogen or its Affiliates, in each case to the extent Controlled by Biogen or its Affiliates on the Effective Date or at any time during the Agreement Term.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Program Know-How</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Program Patents</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Program Technology</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen-Prosecuted Patents</font>&#8221; has the meaning set forth in <u>Section 7.2.4</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Reduced Participation and Information Obligations</font>&#8221; means solely with respect to the [***] (a) Biogen may [***], (b) Biogen will [***], (c) Biogen
          may [***] and (d) Biogen&#8217;s obligation [***], other than (i) reports required by <u>Section 5.2.2</u>, <u>Section 6.9.1</u> and <u>Section 10.4.3</u> (if applicable) (ii) upon Ionis&#8217; reasonable request, information to the extent required to
          confirm Biogen&#8217;s compliance with its obligations under <u>Section 5.1</u> and (iii) as reasonably required to permit Ionis to perform its obligations under this Agreement. The Biogen Reduced Participation and Information Obligations will not
          limit or diminish the scope of any licenses granted by Biogen to Ionis under this Agreement.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">102</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Reduced Royalty</font>&#8221; has the meaning set forth in <u>Section 6.6.2(c)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Results</font>&#8221; has the meaning set forth in <u>Section 4.8.5(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Supported Pass-Through Costs</font>&#8221; means [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Biogen Technology</font>&#8221; means the Biogen Program Technology, Jointly-Owned Program Technology, Biogen Product-Specific Patents and any trademarks described in
          <u>Section 4.1.5</u>, owned, used, developed by, or licensed to Biogen or its Affiliates that is necessary or useful to Develop, register, Manufacture or Commercialize a Product.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#160;&#8220;<font style="font-weight: bold; font-style: italic;">Breaching Party</font>&#8221; means the Party that is believed by the Non-Breaching Party to be in material breach of this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Business Day</font>&#8221; means any day other than a Saturday or Sunday on which banking institutions in New York, New York are open for business.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;[***]&#8221; means [***], or any alternative splice variants, mutants, polymorphisms and fragments thereof.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Calendar Quarter</font>&#8221; means a period of three consecutive months ending on the last day of March, June, September, or December, respectively, and will also
          include the period beginning on the Effective Date and ending on the last day of the Calendar Quarter in which the Effective Date falls.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Calendar Year</font>&#8221; means a year beginning on January 1 (or, with respect to 2012, the Effective Date) and ending on December 31.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Carryover Development Candidate</font>&#8221; has the meaning set forth in <u>Section 1.7.4</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">cGMP</font>&#8221; means current Good Manufacturing Practices as specified in the United States Code of Federal Regulations, ICH Guideline Q7A, or equivalent Laws,
          rules, or regulations of an applicable Regulatory Authority at the time of manufacture.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Change of Control</font>&#8221; means, with respect to a Party, (a) a merger or consolidation of such Party with a Third Party which results in the voting securities
          of such Party outstanding immediately prior thereto ceasing to represent at least 50% of the combined voting power of the surviving entity immediately after such merger or consolidation, (b) a transaction or series of related transactions in
          which a Third Party, together with its Affiliates, becomes the owner of 50% or more of the combined voting power of the outstanding securities of such Party, (c) the sale or other transfer to a Third Party of all or substantially all of such
          Party&#8217;s business to which the subject matter of this Agreement relates, or (d) the stockholders or equity holders of such Party will approve a plan of complete liquidation of such Party or an agreement for the sale or disposition by such Party of
          all or a substantial portion of such Party&#8217;s assets, other than pursuant to the transaction as described above or to an Affiliate. Notwithstanding the foregoing, the sale or issuance of shares in exchange for cash for purposes of a <font style="font-style: italic;">bona fide</font> financing will not constitute a Change of Control.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Claims</font>&#8221; has the meaning set forth in <u>Section 9.1</u>.</div>
        <div>&#160;</div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
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          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Clinical Study</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Clinical Studies</font>&#8221; means a Phase 1 Trial, Phase 2 Trial, Phase 3 Trial or
          Phase 4 Trial, or such other <font style="color: rgb(0, 0, 0);">study in humans that is conducted in accordance with good clinical practices and is designed to generate data in support or maintenance of an </font>NDA<font style="color: rgb(0, 0, 0);">, </font>MAA <font style="color: rgb(0, 0, 0);">or other similar marketing application.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Clinical Supplies</font><font style="font-size: 10pt;">&#8221; means API
            and Finished Drug Product for use in a Clinical Study.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">CMC</font>&#8221; means chemistry, manufacturing and controls.</div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">CMO</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221;
            means a </font><font style="font-size: 10pt;">Third Party <font style="color: rgb(0, 0, 0);">contract manufacturer </font>Manufacturing API, Clinical Supplies <font style="color: rgb(0, 0, 0);">or </font>Finished Drug Product <font style="color: rgb(0, 0, 0);">for any purpose under this </font>Agreement<font style="color: rgb(0, 0, 0);">.</font></font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Collaboration Divestiture Period</font>&#8221; has the meaning set forth in <u>Section 12.5.2(a)(ii)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Collaboration Program</font><font style="font-size: 10pt;">&#8221; has
            the meaning set forth in <u>Section 1.2</u>.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Collaboration Program Research Plan</font><font style="font-size: 10pt;">&#8221; has the meaning set forth in <u>Section 1.5.1(b)</u><font style="color: rgb(0, 0, 0);">.</font></font></div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Collaboration Target</font><font style="font-size: 10pt;">&#8221; means a
            gene target designated as a Collaboration Target pursuant to <u>Section 1.4.</u></font></div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Collaborator IP</font><font style="font-size: 10pt;">&#8221; has the
            meaning set forth in <u>Section 7.1.3(b)</u><font style="color: rgb(0, 0, 0);">.</font></font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Collaborator License</font>&#8221; has the meaning set forth in <u>Section 7.1.3(c)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Commercialize</font>,&#8221; &#8220;<font style="font-weight: bold; font-style: italic;">Commercialization</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Commercializing</font>&#8221;
          means any and all activities directed to marketing, promoting, detailing, distributing, importing, having imported, exporting, having exported, selling or offering to sell a Product following receipt of Approval for such Product in the applicable
          country, including conducting pre-and post-Approval activities, including studies reasonably required to increase the market potential of such Product and studies to provide improved formulation and Product delivery, and launching and promoting
          such Product in each country.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Commercializing Party</font>&#8221; means (a) Biogen, with respect to a Product that is being Developed and Commercialized by or on behalf of Biogen, its Affiliates
          or Sublicensees hereunder, and (b) Ionis, with respect to a Discontinued Product that is being Developed and Commercialized by or on behalf of Ionis, its Affiliates or Sublicensees hereunder.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Commercially Reasonable Efforts</font>&#8221; means the carrying out of discovery, research, development or commercialization activities using good-faith commercially
          reasonable and diligent efforts that the applicable Party would reasonably devote to a compound or product of similar market potential or profit potential at a similar stage in development or product life resulting from its own research efforts,
          based on conditions then prevailing and taking into account, without limitation, issues of safety and efficacy, Regulatory Authority-approved labeling, product profile, the competitiveness of alternative products in the marketplace, the likely
          timing of the product&#8217;s entry into the market, the patent and other proprietary position, the likelihood of Approval and other relevant scientific, technical and commercial factors. Without limiting any of the foregoing, Commercially Reasonable
          Efforts as it applies to Biogen&#8217;s Development or Commercialization of a Product hereunder includes the use of Commercially Reasonable Efforts to perform the &#8220;<font style="font-style: italic;">General Activities</font>&#8221; described in <font style="font-variant: small-caps;"><u>Schedule 5.1.1</u></font>, and Commercially Reasonable Efforts as it applies to Ionis&#8217; Development of a Product hereunder includes use of Commercially Reasonable Efforts to adhere to the activities and
          timelines set forth in each Collaboration Program Research Plan and Development Plan.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">104</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Communications Lead</font>&#8221; has the meaning set forth in <u>Section 11.4.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Competing Collaboration Acquirer</font>&#8221; has the meaning set forth in <u>Section 12.5.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Competing Development Activities</font>&#8221; has the meaning set forth in <u>Section 12.6</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Competitive Indication Product</font>&#8221; means any product intended for use in the same indication as any Development Candidate or Product.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Competitive Indication Program</font>&#8221; means any internal research program for which a budget has been established or to which research personnel have been
          assigned, with the goal of discovering and developing a Competitive Indication Product for which drug discovery activities have been initiated.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Competitive Infringement</font>&#8221; has the meaning set forth in <u>Section 7.5.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Competitive Product</font>&#8221; means any <a name="z_cp_text_1_208"></a>ASO that is designed to bind to or directly modulate the RNA that encodes a High Interest
          Target or a Collaboration Target, other than a Product that is being pursued under this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Competitive Program</font>&#8221; means any internal research program for which a budget has been established or to which research personnel have been assigned, with
          the goal of discovering and developing a Competitive Product for which drug discovery activities have been initiated.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Complete</font>,&#8221; &#8220;<font style="font-weight: bold; font-style: italic;">Completed</font>,&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Completion</font>&#8221;
          means, with respect to a Clinical Study, the point in time at which the primary database lock for such study has occurred and, if such study has a statistical analysis plan, the data generated based on that primary database lock under the
          statistical analysis plan for such study are available.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Compound</font>&#8221; means on a Collaboration Program-by-Collaboration Program basis, any ASO that is designed to bind to the RNA that encodes the applicable
          Collaboration Target, where such ASO is discovered by Ionis prior to or in the performance of the Collaboration Program Research Plan, including each Development Candidate under such Collaboration Program.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Confidential Information</font>&#8221; has the meaning set forth in <u>Section 11.1</u>. &#8220;<font style="font-style: italic;">Confidential Information</font>&#8221; does not
          include information that:</div>
        <div>&#160;</div>
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            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>was in the lawful knowledge and possession of the Receiving Party or its Affiliates prior to the time it was disclosed to, or learned by, the Receiving Party or its Affiliates, or was otherwise developed independently by the Receiving
                  Party or its Affiliates, as evidenced by written records kept in the ordinary course of business, or other documentary proof of actual use by the Receiving Party or its Affiliates;</div>
              </td>
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        </table>
        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">105</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
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            <tr>
              <td style="width: 72pt;"><br>
              </td>
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              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>was generally available to the public or otherwise part of the public domain at the time of its disclosure to the Receiving Party or its Affiliates;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
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              <td style="width: 72pt;"><br>
              </td>
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                <div>became generally available to the public or otherwise part of the public domain after its disclosure and other than through any act or omission of the Receiving Party or its Affiliates in breach of this Agreement; or</div>
              </td>
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        <div>&#160;</div>
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            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>was disclosed to the Receiving Party or its Affiliates, other than under an obligation of confidentiality, by a Third Party who had no obligation to the Disclosing Party or its Affiliates not to disclose such information to others.</div>
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        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Conflicting Patent Right</font>&#8221; has the meaning set forth in <u>Section 7.2.4(d)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Control</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Controlled</font>&#8221; means possession of the ability to grant a license or sublicense
          hereunder without violating the terms of any agreement with any Third Party; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that if a Party has a right to grant a license or sublicense, with
          respect to an item of intellectual property to the other Party only upon payment of compensation (including milestones or royalties) to a Third Party (&#8220;<font style="font-weight: bold; font-style: italic;">Third Party Compensation</font>&#8221;) (other
          than Ionis Supported Pass-Through Costs in the case of Ionis, and other than Biogen Supported Pass-Through Costs in the case of Biogen), then the first Party will be deemed to have &#8220;<font style="font-style: italic;">Control</font>&#8221; of the
          relevant item of intellectual property only if the other Party agrees to bear the cost of such Third Party Compensation. Notwithstanding anything to the contrary under this Agreement, with respect to any Third Party that becomes an Affiliate of a
          Party after the Effective Date (including a Third Party acquirer), no intellectual property of such Third Party will be included in the licenses granted hereunder by virtue of such Third Party becoming an Affiliate of such Party.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Cost Estimate</font>&#8221; has the meaning set forth in <u>Section 1.5.2(b)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Cover</font>,&#8221; &#8220;<font style="font-weight: bold; font-style: italic;">Covered</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Covering</font>&#8221;
          means, with respect to a patent, that, but for rights granted to a Person under such patent, the act of making, using or selling by such Person would infringe a Valid Claim included in such patent, or in the case of a patent that is a patent
          application, would infringe a Valid Claim in such patent application if it were to issue as a patent.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">CTD</font>&#8221; has the meaning set forth in <u>Section 4.6</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Deficiency Notice</font>&#8221; has the meaning set forth in <u>Section 3.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Develop</font>,&#8221; &#8220;<font style="font-weight: bold; font-style: italic;">Developing</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Development</font>&#8221;
          means with respect to a Product, any and all discovery, characterization, or preclinical (including IND-Enabling Toxicology Studies), clinical, or regulatory activity with respect to the Product to seek Approval (including the submission of all
          necessary filings with applicable Regulatory Authorities to support such preclinical and clinical activities and Approval), including human clinical trials conducted after Approval of the Product to seek Approval for additional indications for
          the Product.</div>
        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">106</font></div>
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Development Candidate</font>&#8221; means a Compound that is reasonably determined by Ionis&#8217; RMC in accordance with Ionis&#8217; standard procedures for designating
          development candidates [***] as ready to start IND-Enabling Toxicology Studies. The checklist Ionis uses as of the Effective Date when reviewing potential development candidates for approval is attached hereto as <font style="font-variant: small-caps;"><u>Appendix 2</u></font>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Development Candidate Data Package</font>&#8221; means, with respect to a [***], the [***]; <font style="font-style: italic;">provided</font> that such package
          contains the [***]. The checklist Ionis uses as of the Effective Date when reviewing potential development candidates for approval is attached hereto as <font style="font-variant: small-caps;"><u>Appendix 2</u></font>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Development Plan</font>&#8221; has the meaning set forth in <u>Section 1.5.2(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Diagnostic Option</font>&#8221; has the meaning set forth in <u>Section 3.2.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Disclosing Party</font>&#8221; has the meaning set forth in <u>Section 11.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Discontinued Product</font>&#8221; means a Product that is the subject of a termination under this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Dispositive Disagreement Condition</font>&#8221;<font style="font-weight: bold; font-style: italic;">&#160;</font>has the meaning set forth in <u>Section 1.3.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Dispute</font>&#8221; means any dispute arising between the Parties relating to, arising out of or in any way connected with this Agreement or any term or condition
          hereof, or the performance by either Party of its obligations hereunder, whether before or after termination of this Agreement that cannot be resolved by the Parties.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">DMPK Agreement</font>&#8221; means the DMPK Research, Development, Option and License Agreement between the Parties dated June 27, 2012, as amended and/or restated
          from time to time.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">DOJ</font>&#8221; has the meaning set forth in <u>Section 3.1.4(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Drug Development Program</font>&#8221; means the aggregate drug development activities related to each Development Candidate through [***] under a Collaboration
          Program in accordance with the applicable Development Plan for all Collaboration Programs under this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Drug Discovery Program</font>&#8221; means the aggregate drug discovery activities including drug screening, identification, characterization, optimization and other
          necessary activities according to the applicable Collaboration Program Research Plans to achieve Target Sanction status, and then identify a Development Candidate for all Collaboration Programs under this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Drug Discovery Term</font>&#8221; has the meaning set forth in <u>Section 1.7.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Effective Date</font>&#8221; has the meaning set forth in the Recitals of this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">EMA</font>&#8221; means the European Medicines Agency and any successor entity thereto.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">107</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Enabled Core Program Patents</font>&#8221; means Program Patents Controlled by a Party or any of its Affiliates on the Effective Date or during the Agreement Term
          claiming (a) methods of dosing (frequency, duration, concentration, volume, etc.) generally applicable to Oligonucleotides to achieve optimal tissue distribution or enhance other properties of an Oligonucleotide; (b) methods of determining an
          effective human dose based on animal data that are generally applicable to Oligonucleotides; (c) methods of determining an effective dose based on actual or modeled pharmacokinetic data generally applicable to Oligonucleotides; (d) methods of
          identifying or optimizing predictive biomarkers for diseases; (e) observations about a disease based on data from a natural history study; (f) proprietary disease models; or (g) methods of using radio-labeled ligands with Oligonucleotides in
          animals.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Estimated Lock Date</font>&#8221; has the meaning set forth in <u>Section 3.1.1</u>.</div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">Estimated Biogen-Approved Costs</font>&#8221; means Ionis&#8217; good faith estimate of the Biogen-Approved Costs it will incur during the applicable Measurement Period.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">European Union</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">EU</font>&#8221; means each and every country or territory that is officially part of
          the European Union.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Excluded Payments</font>&#8221; means (a) royalty or profit sharing payments, or any other type of payment based on periodic sales of a Product; (b) payments made in
          consideration of Ionis&#8217; or Ionis&#8217; Affiliate&#8217;s equity or debt securities at fair market value; (c) payments made to pay for or reimburse Ionis or Ionis&#8217; Affiliate for the fully-burdened cost of research and development; (d) payments made to pay
          for or reimburse Ionis or Ionis&#8217; Affiliate for the cost of prosecuting, maintaining or defending Patent Rights; and (e) payments made to Ionis or Ionis&#8217; Affiliate to pass-through to a Third Party in satisfaction of a payment obligation Ionis or
          Ionis&#8217; Affiliate has to such Third Party.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Executives</font>&#8221; has the meaning set forth in <u>Section 12.1.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">FDA</font>&#8221; means the United States Food and Drug Administration and any successor entity thereto.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Field</font>&#8221; means, except as may be limited under <u>Section 4.1.4</u>, any prophylactic or therapeutic use or form of administration for any indication.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Finished Drug Product</font>&#8221; means any drug product containing API as an active ingredient in finished bulk form for the Development or Commercialization by a
          Party under this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">First Commercial Sale</font>&#8221; means with respect to a Product, the first sale of such Product by Biogen, its Affiliate or its Sublicensee to a Third Party in a
          particular country after Approval of the Product has been obtained in such country.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Follow-On Agreement</font>&#8221; has the meaning set forth in <u>Section 2.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Follow-On Compound</font>&#8221; means, with respect to a given Compound for a given Collaboration Target, any ASO (other than the Development Candidate for such
          Collaboration Target) that is designed to bind to the RNA that encodes such Collaboration Target <font style="color: rgb(0, 0, 0);">discovered</font> by or on behalf of Ionis following the License Effective Date for the applicable Collaboration
          Program.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Follow-On Interest Notice</font>&#8221; has the meaning set forth in <u>Section 2.1.2(a)</u>.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">108</font></div>
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Follow-On Negotiation Notice</font><font style="font-size: 10pt;">&#8221;
            has the meaning set forth in <u>Section 2.1.2</u>.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">FTC</font>&#8221; has the meaning set forth in <u>Section 3.1.4(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">FTE</font>&#8221; means a total of 47 weeks or 1880 hours per year of work on the Development, Manufacturing or Commercialization of a Product carried out by
          employees of a Party having the appropriate relevant expertise to conduct such activities.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">FTE Costs</font>&#8221; has the meaning set forth in <u><font style="font-style: normal;">Section 1.8</font></u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">FTE Rate</font>&#8221; means $[***] for the Calendar Year 2012. The FTE Rate will be increased each Calendar Year thereafter by the [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Full Royalty Period</font>&#8221; has the meaning set forth in <u>Section 6.6.2(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Fully Absorbed Cost of Goods</font>&#8221; means the costs incurred by Ionis as determined using the methodology set forth in <font style="font-variant: small-caps;"><u>Schedule







              4.6.3</u></font> fairly applied and as employed on a consistent basis throughout Ionis&#8217; operations<font style="font-variant: small-caps;">.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Gene-Editing Product</font>&#8221; means an Oligonucleotide that, when introduced into a cell of an organism, (a) is stably integrated within the genome or stable
          episome of the cell of such organism or (b) causes (or is perceived to cause) a permanent change in the genome of the cell of such organism.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Generic Product</font>&#8221;<font style="font-weight: bold;">&#160;</font>means, with respect to a particular Product, one or more Third Party product(s) (a) having the
          same active pharmaceutical ingredient as such Product and for which in the U.S. an ANDA has been filed naming such Product as the reference listed drug or outside of the U.S., an equivalent process where bioequivalence to such Product has been
          asserted, and (b) such Third Party product(s) when taken in the aggregate have a market share (measured in number of prescriptions with the numerator of such fractional share being such Third Party product(s) taken in the aggregate, and the
          denominator being the total of such Third Party product(s) taken in the aggregate plus such Product taken in the aggregate, as provided by IMS) during the applicable Calendar Quarter in such country of at least [***]%.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">GLP</font>&#8221; means the then-current good laboratory practice standards promulgated or endorsed by the FDA as defined in 21 C.F.R. Part 58, and comparable foreign
          regulatory standards.</div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">High Interest Target</font>&#8221; has the meaning set forth in <u>Section 1.3.1.</u>&#160; For clarity, at any given time, if a gene target is not on the High Interest Target List at such time, then
          such gene target is not a High Interest Target.</div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">High Interest Target Development Candidate</font>&#8221; means an ASO that is discovered by or on behalf of Ionis and designed to bind to the RNA that encodes a High Interest Target that is
          reasonably determined by Ionis&#8217; RMC to be a development candidate in accordance with Ionis&#8217; standard procedures for designating development candidates<font style="font-variant: small-caps;">.</font></div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">High Interest Target List</font>&#8221; has the meaning set forth in <u>Section 1.3.1.</u></div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">109</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">HSR Act</font>&#8221; means the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and the rules and regulations promulgated thereunder.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">HSR Clearance</font>&#8221; means all applicable waiting periods under the HSR Act with respect to the transactions contemplated under this Agreement have expired or
          have been terminated.</div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">HSR Clearance Date</font>&#8221; means the earliest date on which the Parties have actual knowledge that all applicable waiting periods under the HSR Act with respect to the transactions
          contemplated under this Agreement have expired or have been terminated.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">HSR Filing</font>&#8221; means filings by Biogen and Ionis with the United States Federal Trade Commission and the Antitrust Division of the United States Department
          of Justice of a Notification and Report Form for Certain Mergers and Acquisitions (as that term is defined in the HSR Act) with respect to the matters set forth in this Agreement, together with all required documentary attachments thereto.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">HSR Termination Royalty</font>&#8221; has the meaning set forth in <u>Section 10.2.3(b)(ii)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Incremental Tax Cost</font>&#8221; has the meaning set forth in <u>Section 12.4</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">IND</font>&#8221; means an Investigational New Drug Application (as defined in the Food, Drug and Cosmetic Act, as amended) filed with the FDA or its foreign
          counterparts.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">IND-Enabling Toxicology Studies</font>&#8221; means the pharmacokinetic and toxicology studies required to meet the requirements for filing an IND.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Indemnitee</font>&#8221; has the meaning set forth in <u>Section 9.3</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Initiation</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Initiate</font>&#8221; means, with respect to any IND-Enabling Toxicology Study, dosing of
          the first animal subject in such IND-Enabling Toxicology Study and, with respect to any Clinical Study, dosing of the first human subject in such Clinical Study.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Integrated Development Plan</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">IDP</font>&#8221; has the meaning set forth in <u>Section 5.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis</font>&#8221; has the meaning set forth in the Preamble of this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Attribution Language</font>&#8221; has the meaning set forth in <u>Section 11.4.11</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic; color: rgb(0, 0, 0);">Ionis/Biogen Additional Agreement</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221; </font><font style="font-size: 10pt;">means (a) each of the Ionis/Biogen Preexisting Development Agreements, (b) the Neurology II Agreement, (c) the Research Collaboration, Option and License
            Agreement between the Parties dated December 19, 2017, and (d) the New Strategic Neurology Drug Discovery and Development Collaboration, Option and License Agreement between the Parties dated April 19, 2018, in each case ((a)-(d)), as amended
            or restated from time to time.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Ionis/Biogen Preexisting Development Agreements</font><font style="font-size: 10pt;">&#8221; means the SMN Agreement and the DMPK Agreement.</font></div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">110</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Breach Event</font>&#8221; has the meaning set forth in <u>Section 10.4.4(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Core Technology Patents</font>&#8221; means all Patent Rights owned, used, developed by, or licensed to Ionis or its Affiliates, in each case to the extent
          Controlled by Ionis or its Affiliates on the Effective Date or at any time during the Agreement Term, claiming subject matter generally applicable to ASOs, other than Ionis Product-Specific Patents or Ionis Manufacturing and Analytical Patents. <font style="color: rgb(0, 0, 0);">A list of </font>Ionis Core Technology Patents <font style="color: rgb(0, 0, 0);">as of the </font>Effective Date <font style="color: rgb(0, 0, 0);">is set forth on </font><font style="font-variant: small-caps; color: rgb(0, 0, 0);"><u>Schedule</u></font><font style="color: rgb(0, 0, 0);"><u> 8.2.4(a)</u></font><font style="color: rgb(0, 0, 0);"> attached hereto.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis In-License Agreements</font>&#8221; has the meaning set forth in <u>Section 6.8.1(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Internal ASO Safety Database</font>&#8221; has the meaning set forth in <u>Section 5.2.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Know-How</font>&#8221; means any Know-How, including any Jointly-Owned Program Know-How and Ionis Program Know-How, owned, used, developed by, or licensed to
          Ionis or its Affiliates, in each case to the extent Controlled by Ionis or its Affiliates on the Effective Date or at any time during the Agreement Term. Ionis Know-How does not include the Ionis Manufacturing and Analytical Know-How.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Manufacturing and Analytical Know-How</font>&#8221; means Know-How, including Jointly-Owned Program Know-How, that relates to the synthesis or analysis of a
          Product regardless of sequence or chemical modification, owned, used, developed by, or licensed to Ionis or its Affiliates, in each case to the extent Controlled by Ionis or its Affiliates on the Effective Date or at any time during the Agreement
          Term. Ionis Manufacturing and Analytical Know-How does not include the Ionis Know-How.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Manufacturing and Analytical Patents</font>&#8221; means Patent Rights, including Jointly-Owned Program Patents, that claim methods and materials used in the
          synthesis or analysis of a Product regardless of sequence or chemical modification, owned, used, developed by, or licensed to Ionis or its Affiliates, in each case to the extent Controlled by Ionis or its Affiliates on the Effective Date or at
          any time during the Agreement Term. <font style="color: rgb(0, 0, 0);">A list of </font>Ionis Manufacturing and Analytical Patents <font style="color: rgb(0, 0, 0);">as of the </font>Effective Date <font style="color: rgb(0, 0, 0);">is set
            forth on </font><font style="font-variant: small-caps; color: rgb(0, 0, 0);"><u>Schedule</u></font><font style="color: rgb(0, 0, 0);"><u> 8.2.4(b)</u></font><font style="color: rgb(0, 0, 0);"> attached hereto. </font>Ionis Manufacturing and
          Analytical Patents do not include the Ionis Product-Specific Patents or the Ionis Core Technology Patents.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Platform Technology</font>&#8221; has the meaning set forth in <u>Section 8.2.4</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Product-Specific Patents</font>&#8221; means <font style="color: rgb(0, 0, 0);">all </font>Product-Specific Patents, in each case to the extent Controlled by
          Ionis or its Affiliates on the Effective Date or at any time during the Agreement Term<font style="color: rgb(0, 0, 0);">. A list of </font>Ionis Product-Specific Patents <font style="color: rgb(0, 0, 0);">as of the </font>Effective Date <font style="color: rgb(0, 0, 0);">is set forth on </font><font style="font-variant: small-caps; color: rgb(0, 0, 0);"><u>Schedule</u></font><font style="color: rgb(0, 0, 0);"><u> 8.2.4(c)</u></font><font style="color: rgb(0, 0, 0);"> attached
            hereto.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Program Know-How</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Program Patents</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Program Technology</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">111</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Results</font>&#8221; has the meaning set forth in <u>Section 4.8.5(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ionis Supported Pass-Through Costs</font>&#8221; means [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Japan NDA</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">JNDA</font>&#8221; means<font style="color: rgb(0, 0, 0);"> the Japanese equivalent of an </font>NDA







          <font style="color: rgb(0, 0, 0);">filed with the </font>Koseisho (<u>i.e.</u><font style="font-style: italic;">,</font> the Japanese Ministry of Health and Welfare, or any successor agency thereto)<font style="color: rgb(0, 0, 0);">.</font></div>
        <div>&#160;</div>
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        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Joint Patent Committee</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221; or &#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">JPC</font><font style="font-size: 10pt;">&#8221; has the meaning set forth in <u>Section 7.1.3(a)</u>.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Jointly-Owned Program Know-How</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Jointly-Owned Program Patents</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Jointly-Owned Program Technology</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Know-How</font>&#8221; means inventions, technical information, know-how and materials, including technology, data, compositions, formulas, biological materials,
          assays, reagents, constructs, compounds, discoveries, procedures, processes, practices, protocols, methods, techniques, results of experimentation or testing, knowledge, trade secrets, skill and experience, in each case whether or not patentable
          or copyrightable.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Lead Party</font>&#8221; has the meaning set forth in <u>Section 7.4.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">License Effective Date</font>&#8221; means, on an Option-by-Option and Collaboration Program-by-Collaboration Program basis, the date on which Biogen notifies Ionis
          in writing that it wishes to exercise the Option and pays to Ionis the applicable license fee set forth in <u>Section 6.3</u> (in the event Biogen wishes to exercise its Option for a Collaboration Program).</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Licensed Know-How</font>&#8221; means Ionis Manufacturing and Analytical Know-How, and Ionis Know-How. For clarity, Licensed Know-How does not include any Know-How
          covering formulation technology or delivery devices.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Licensed Patents</font>&#8221; means the Ionis Product-Specific Patents, Ionis Core Technology Patents, Ionis Manufacturing and Analytical Patents and Ionis&#8217; interest
          in Jointly-Owned Program Patents. For clarity, Licensed Patents do not include any Patent Rights claiming formulation technology or delivery devices unless such Patent Rights are included in the Jointly-Owned Program Patents.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Licensed Technology</font>&#8221; means, on a Product-by-Product basis, any and all Licensed Patents, Licensed Know-How, and any trademarks described in <u>Section
            4.1.5</u>, to the extent necessary or useful to Develop, register, Manufacture or Commercialize such Product.&#160; Licensed Technology does not include any technology in-licensed by Ionis from [***] under the [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Losses</font>&#8221; has the meaning set forth in <u>Section 9.1</u>.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
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          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">MAA</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221;
            means, with respect to a particular </font><font style="font-size: 10pt;">Product<font style="color: rgb(0, 0, 0);">, a marketing authorization application filed with the </font>EMA or other European Regulatory Authority <font style="color: rgb(0, 0, 0);">after completion of </font>Clinical Studies <font style="color: rgb(0, 0, 0);">to obtain </font>Approval <font style="color: rgb(0, 0, 0);">for such </font>Product <font style="color: rgb(0, 0, 0);">under the centralized
              European filing procedure or, if the centralized </font>EMA <font style="color: rgb(0, 0, 0);">filing procedure is not used, filed using the applicable procedures in any </font>European Union <font style="color: rgb(0, 0, 0);">country or
              other country in Europe</font>.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">MAA Approval</font>&#8221; means, <font style="color: rgb(0, 0, 0);">with respect to a particular </font>Product<font style="color: rgb(0, 0, 0);">, </font>the
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        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Major Market</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221; means any of the following countries: the United States, Japan, the </font><font style="font-size: 10pt;">United Kingdom<font style="color: rgb(0, 0, 0);">, </font>Germany<font style="color: rgb(0, 0, 0);">, </font>France<font style="color: rgb(0, 0, 0);">, </font>Italy <font style="color: rgb(0, 0, 0);">and </font>Spain<font style="color: rgb(0, 0, 0);">.</font></font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Manufacture</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Manufactured</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Manufacturing</font>&#8221;
          means any activity involved in or relating to the manufacturing, quality control testing (including in-process, release and stability testing), releasing or packaging, for pre-clinical and clinical purposes, of API or a Product in finished form.</div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">Manufacturing Process Development Terms</font>&#8221; means <u>Section 4.1.2(c)(ii)</u>, <u>Section 4.3.1(a)</u>, <u>Section 4.3.1(c)</u>, <u>Section 4.4</u>, <u>Section 4.5</u>, <u>Section
            4.7.2</u> and <u>Section 4.8.5</u> of this Agreement.</div>
        <div>&#160;</div>
        <div>&#8220;<font style="font-weight: bold; font-style: italic;">Measurement Period</font>&#8221; has the meaning set forth in <u>Section 1.8.3</u> or <u>Section 1.8.4</u>, as applicable.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Milestone Event</font>&#8221; means a Pre-Licensing Milestone Event or a Post-Licensing Milestone Event, as the case may be.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Minimum Third Party Payments</font>&#8221; means [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">NDA</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221;</font><font style="font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0);">&#160;</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">means a </font><font style="font-size: 10pt;">New Drug Application <font style="color: rgb(0, 0, 0);">filed with the
            </font>FDA <font style="color: rgb(0, 0, 0);">after completion of </font>Clinical Studies <font style="color: rgb(0, 0, 0);">to obtain </font>Approval <font style="color: rgb(0, 0, 0);">for a </font>Product <font style="color: rgb(0, 0, 0);">in the United States.</font></font></div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">NDA Approval</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221; means the </font><font style="font-size: 10pt;">Approval <font style="color: rgb(0, 0, 0);">of an </font>NDA <font style="color: rgb(0, 0, 0);">by the </font>FDA <font style="color: rgb(0, 0, 0);">for a </font>Product <font style="color: rgb(0, 0, 0);">in the U.S.</font></font></div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Negotiation Period</font><font style="font-size: 10pt;">&#8221; has the
            meaning set forth in <u>Section 2.1.2</u>.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Net Sales</font>&#8221; means the gross amount billed or invoiced <a name="z_cp_text_1_211"></a>on sales of a Product by Biogen, its Affiliates <a name="z_cp_text_1_213"></a>and Sublicensees, less the following:</div>
        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;"><a name="z_cp_blt_2_216"></a><a name="z_cp_blt_1_218"></a><a name="z_cp_text_1_219"></a>(a)&#160;&#160;&#160;&#160;&#160;&#160; &#160; &#160; &#160; customary trade, quantity, or cash discounts to non-affiliated brokers
          or agents to the extent actually allowed and taken;</div>
        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;"><a name="z_cp_text_1_221"></a><font style="color: rgb(0, 0, 0);">(b)</font>&#160;&#160;&#160;&#160;&#160; &#160; &#160; &#160;&#160; amounts repaid or credited by reason of rejection or return;</div>
        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;"><a name="z_cp_text_1_222"></a><font style="color: rgb(0, 0, 0);">(c)</font>&#160;&#160;&#160; &#160; &#160;&#160;&#160;&#160; to the extent separately stated on purchase orders, invoices, or other documents of sale,
          any taxes or other governmental charges levied on <a name="z_cp_text_1_225"></a>the production, sale, transportation, delivery, or use of such Product which is paid by or on behalf of Biogen; and</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">113</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;"><a name="z_cp_text_1_227"></a><font style="color: rgb(0, 0, 0);">(d)</font>&#160; &#160; &#160; &#160;&#160;&#160;&#160;&#160;&#160; outbound transportation costs prepaid or allowed and costs of insurance in transit.</div>
        <div>&#160;</div>
        <div style="text-align: justify;"><a name="z_cp_text_1_229"></a>In any transfers of a Product between Biogen, its Affiliates and Sublicensees, Net Sales are calculated based on the final sale of such Product to an independent Third Party.&#160; If
          Biogen, its Affilate or a Sublicensee receives non-monetary consideration for a Product, Net Sales are calculated based on the fair market value of that consideration.&#160; If Biogen, its Affiliates or Sublicensees uses or disposes of a Product in
          the provision of a commercial service, the Product is sold and the Net Sales are calculated based on the sales price of the Product to an independent Third Party during the same royalty period or, in the absence of sales, on the fair market value
          of the Product as determined by the Parties in good faith. Net Sales shall not include any transfers of supplies of the applicable Product for (i) use in clinical trials, pre-clinical studies or other research or development activities, or (ii) a
          <font style="font-style: italic;">bona fide </font>charitable purpose, or (iii) a commercially reasonable sampling program.</div>
        <div>&#160;</div>
        <div>With respect to Net Sales as it applies to royalties payable by Ionis, the Parties agree that any reasonable definition of &#8220;net sales&#8221; that is (x) customarily used in pharmaceutical industry technology licensing or collaboration contracts and
          (y) consistent with GAAP or International Financial Reporting Standards and is subsequently agreed to by Ionis (or a Third Party acquirer or assignee) and Ionis&#8217; Sublicensee or commercialization partner in an arms-length transaction under a
          particular sublicense or commercialization agreement will replace the definition of Net Sales in this Agreement and will be used in calculating the royalty payment to Biogen on sales of products sold pursuant to such agreement. If Ionis uses such
          an alternate definition of &#8220;net sales&#8221; in a particular sublicense, (A) Ionis will include such &#8220;net sales&#8221; definition in the applicable royalty reports to assist Biogen with verifying royalty payments and (B) if such definition is not consistent
          with GAAP or International Financial Reporting Standards, upon Biogen&#8217;s request, Ionis will reconcile the royalties calculated under such definition with GAAP or International Financial Reporting Standards.</div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic; color: rgb(0, 0, 0);">Neurology II Agreement</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8221; means </font><font style="font-size: 10pt;">the Second Amended and Restated Strategic Neurology Drug Discovery and Development Collaboration, Option and License Agreement between the Parties
            dated October 17, 2018.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Neurology JSC</font>&#8221; has the meaning set forth in <u>Section 1.11.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">New Third Party Licenses</font>&#8221; has the meaning set forth in <u>Section 8.3.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Non-Breaching Party</font>&#8221; means the Party that believes the Breaching Party is in material breach of this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">[***] Indications</font>&#8221; means therapeutic uses that are not designed to treat [***] diseases or [***] diseases.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Oligonucleotide</font>&#8221; means a synthetic compound that comprises or consists of at least five linked nucleosides (including any analog, variant, mimic, or
          mimetic thereof). For clarity, the [***] of Oligonucleotides [***].&#160; Oligonucleotides [***].&#160; Oligonucleotides may be single-stranded or multi-stranded.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">114</font></div>
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          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Option</font>&#8221; has the meaning set forth in <u>Section 3.1.3</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Option Acceleration Deadline</font>&#8221;<font style="font-weight: bold; font-style: italic;">&#160;</font>has the meaning set forth in <u>Section 1.5.2(d)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Option Acceleration Notice</font>&#8221;<font style="font-weight: bold; font-style: italic;">&#160;</font>has the meaning set forth in <u>Section 1.5.2(d)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Option Deadline</font>&#8221; has the meaning set forth in <u>Section 3.1.3</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Option Period</font>&#8221; means, with respect to a Collaboration Program, the period beginning on the Effective Date and ending on the expiration or earlier
          termination of the Option with respect to such Collaboration Program.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Original Agreement</font>&#8221; has the meaning set forth in the Recitals of this Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Panel Decision</font>&#8221; has the meaning set forth in <u>Section 10.4.4(b)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Party</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Parties</font>&#8221; means Biogen and Ionis individually or collectively.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Patent Costs</font>&#8221; means the reasonable fees and expenses paid to outside legal counsel, and filing, maintenance and other reasonable out-of-pocket expenses
          paid to Third Parties, incurred in connection with the Prosecution and Maintenance of Patent Rights.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Patent Rights</font>&#8221; means (a) patents, patent applications and similar government-issued rights protecting inventions in any country or jurisdiction however
          denominated, (b) all priority applications, divisionals, continuations, substitutions, continuations-in-part of and similar applications claiming priority to any of the foregoing, and (c) all patents and similar government-issued rights
          protecting inventions issuing on any of the foregoing applications, together with all registrations, reissues, renewals, re-examinations, confirmations, supplementary protection certificates, and extensions of any of (a), (b) or (c).</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Permitted Licenses</font>&#8221; means (a) licenses granted by Ionis before or after the Effective Date to any Third Party under the Ionis Core Technology Patents,
          the Ionis Manufacturing and Analytical Patents, or the Ionis Manufacturing and Analytical Know-How (but not under the Ionis Product-Specific Patents) to (i) use Oligonucleotides (or supply Oligonucleotides to end users) solely to conduct
          pre-clinical research, or (ii) enable such Third Party to manufacture or formulate Oligonucleotides, where (A) such Third Party is primarily engaged in providing contract manufacturing or services and is not primarily engaged in drug discovery,
          development or commercialization of therapeutics; and (B) Ionis does not assist such Third Party to identify, discover or make a Compound or Product; and (b) material transfer agreements with academic collaborators or non-profit institutions
          solely to conduct noncommercial research.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Person</font>&#8221; will mean any corporation, limited or general partnership, limited liability company, joint venture, trust, unincorporated association,
          governmental body, authority, bureau or agency, any other entity or body, or an individual.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Pharmacovigilance Agreement</font>&#8221; has the meaning set forth in <u>Section 5.2.1</u>.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">115</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Phase 1 Trial</font>&#8221; means the first clinical study in human beings Initiated by Ionis under the applicable Development Plan pursuant to an IND that has been
          filed with a Regulatory Authority in a Major Market or Canada. If Biogen exercises the Option before Ionis Initiates such a Phase 1 Trial, then the definition of &#8220;<font style="font-style: italic;">Phase 1 Trial</font>&#8221; means the first clinical
          study of the applicable Development Candidate in human beings Initiated by Biogen, its Affiliate or its Sublicensee.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Phase 1 Trial Design</font>&#8221; means, with respect to a Collaboration Program, the Phase 1 Trial design set forth in the applicable Development Plan, which may be
          amended from time to time during the Agreement Term as mutually agreed in writing by the Parties (in consultation with the Neurology JSC).</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Phase 2 Trial</font>&#8221; means, with respect to a Product, a Clinical Study that is intended to explore the feasibility, safety, dose ranging or efficacy of such
          Product, that is prospectively designed to generate sufficient data (if successful) to commence a Phase 3 Trial (or foreign equivalent) of such Product, as further defined in 21 C.F.R. 312.21(b) or the corresponding regulation in jurisdictions
          other than the United States.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Phase 3 Trial</font>&#8221; means, with respect to a Product, a pivotal Clinical Study in humans performed to gain evidence with statistical significance of the
          efficacy of such Product in a target population, and to obtain expanded evidence of safety for such Product that is needed to evaluate the overall benefit-risk relationship of such Product, to form the basis for approval of an NDA by a Regulatory
          Authority and to provide an adequate basis for physician labeling, as described in 21 C.F.R. 312.21(c), as amended from time to time, or the corresponding regulation in jurisdictions other than the United States.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Phase 4 Trial</font>&#8221; means, with respect to a Product, (a) any Clinical Study conducted to satisfy a requirement of a Regulatory Authority in order to maintain
          a Regulatory Approval for such Product or (b) any Clinical Study conducted after the first Regulatory Approval in the same disease state for which such Product received Regulatory Approval other than for purposes of obtaining Regulatory Approval.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">PoC Data Package</font>&#8221; means, with respect to a Product, [***], (d) copies of all filings submitted to Regulatory Authorities regarding such Product, (e) a
          summary of the patent status relating to such Product, and (f) a summary of any Third Party Obligations Ionis believes relate to the Product.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">PoC Trial</font>&#8221; means, with respect to a Collaboration Program, the first phase 2a Clinical Study in human patients with a pharmacokinetic or target reduction
          endpoint or other therapeutic or physiological endpoint.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">PoC Trial Completion Notice</font>&#8221; has the meaning set forth in <u>Section 3.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">PoC Trial Design</font>&#8221; means the PoC Trial design set forth in each Development Plan, which may be amended from time to time during the Agreement Term as
          mutually agreed in writing by the Parties (in consultation with the Neurology JSC).</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Post-Licensing Milestone Event</font>&#8221; has the meaning set forth in <u>Section 6.4</u>.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">116</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Pre-Clinical Studies</font>&#8221; means <font style="font-style: italic;">in vitro</font> and <font style="font-style: italic;">in vivo</font> studies of a
          Product, not in humans, including those studies conducted in whole animals and other test systems, designed to determine the toxicity, bioavailability, and pharmacokinetics of such Product and whether such Product has a desired effect.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Pre-Existing Competitive Product</font>&#8221; has the meaning set forth in <u>Section 12.5.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Pre-Existing Competitive Program</font>&#8221; has the meaning set forth in <u>Section 12.5.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Pre-Licensing Milestone Event</font>&#8221; has the meaning set forth in <u>Section 6.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Prior Agreements</font>&#8221; means the agreements listed on <font style="font-variant: small-caps; color: rgb(0, 0, 0);"><u>Schedule 8.2.8</u></font> attached
          hereto.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Proceeding</font>&#8221; means an action, suit or proceeding.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Product</font>&#8221; means, on a Collaboration Program-by-Collaboration Program basis, a finished drug product containing a Compound as an active pharmaceutical
          ingredient.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Product-Specific Patents</font>&#8221; means Patent Rights Controlled by a Party or any of its Affiliates on or after the Effective Date, including any Program
          Patents, claiming <font style="color: rgb(0, 0, 0);">(a) the specific composition of matter of a </font>Product<font style="color: rgb(0, 0, 0);">, or (b) methods of using a </font>Product <font style="color: rgb(0, 0, 0);">as a prophylactic
            or therapeutic</font>; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that <font style="color: rgb(0, 0, 0);">Patent Rights </font>Controlled <font style="color: rgb(0, 0, 0);">by </font>Ionis







          or any of its Affiliates <font style="color: rgb(0, 0, 0);">that (i) include claims that are directed to subject matter applicable to </font>ASOs <font style="color: rgb(0, 0, 0);">in general, or (ii) include an </font>ASO<font style="color: rgb(0, 0, 0);">, the sequence of which targets the RNA that encodes </font>a Collaboration Target <font style="color: rgb(0, 0, 0);">and the RNA of a gene that does not encode </font>a Collaboration Target<font style="color: rgb(0, 0, 0);">,
            will not be considered </font>Product-Specific Patents<font style="color: rgb(0, 0, 0);">, and in the case of (i) and (ii), such </font>Patent Rights <font style="color: rgb(0, 0, 0);">will be considered </font>Ionis Core Technology Patents<font style="color: rgb(0, 0, 0);">.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Program Patents</font>&#8221; has the meaning set forth in <u>Section 7.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Prosecution and Maintenance</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Prosecute and Maintain</font>&#8221; means, with regard to a Patent
          Right, the preparing, filing, prosecuting and maintenance of such Patent Right, as well as handling re-examinations, reissues, and requests for patent term extensions with respect to such Patent Right, together with the conduct of interferences,
          the defense of oppositions and other similar proceedings with respect to the particular Patent Right. For clarification, &#8220;<font style="font-weight: bold; font-style: italic;">Prosecution and Maintenance</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">Prosecute and Maintain</font>&#8221; will not include any other enforcement actions taken with respect to a Patent Right.</div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">Receiving Party</font><font style="font-size: 10pt;">&#8221; has the
            meaning set forth in <u>Section 11.1</u>.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Reduced Royalty Period</font>&#8221; has the meaning set forth in <u>Section 6.6.2(e)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Regulatory Approval</font>&#8221; means the approval necessary for the commercial manufacture, distribution, marketing, promotion, offer for sale, use, import,
          export, and sale of a pharmaceutical product in a jurisdiction regulated by a Regulatory Authority.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Regulatory Authority</font>&#8221; means any governmental authority, including the FDA, EMA or Koseisho (<u>i.e.</u><font style="font-style: italic;">,</font> the
          Japanese Ministry of Health and Welfare, or any successor agency thereto), that has responsibility for granting any licenses or approvals or granting pricing or reimbursement approvals necessary for the marketing and sale of a Product in any
          country.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">117</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Regulatory Materials</font>&#8221; means, with respect to a Product, any regulatory submissions, notifications, registrations, approvals and/or other filings and
          correspondence made to or with a Regulatory Authority in any country or jurisdiction, and any other records required by Applicable Law to be maintained that may be necessary or useful to develop, manufacture, market, sell or otherwise
          commercialize such Product in any such country or jurisdiction.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Replacement Limit</font>&#8221;<font style="font-style: italic;">&#160;</font>has the meaning set forth in <u>Section 1.3.3</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Research</font>&#8221; means conducting the research activities with Compounds as set forth in each Collaboration Program Research Plan, including pre-clinical
          research and lead optimization, <font style="font-style: italic;">but specifically excluding</font> Development and Commercialization. When used as a verb, &#8220;<font style="font-style: italic;">Researching</font>&#8221; means to engage in Research.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Results</font>&#8221; has the meaning set forth in <u>Section 4.8.5(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Reverse Royalties</font>&#8221; has the meaning set forth in <u>Section 6.7.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">RMC</font>&#8221; means Ionis&#8217; Research Management Committee, or any successor committee.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">ROFN Period</font>&#8221; has the meaning set forth in <u>Section 2.1.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">&#8220;</font><font style="font-size: 10pt; font-weight: bold; font-style: italic;">ROFN Termination Event</font><font style="font-size: 10pt;">&#8221; has
            the meaning set forth in <u>Section 2.1.2</u>.</font></div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Royalty Quotient</font>&#8221; has the meaning set forth in <u>Section 6.6.2(c)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Service Provider</font>&#8221; means the Third Party(ies) conducting the original and revised studies under the applicable Development Plan.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Setoff Amount</font>&#8221; has the meaning set forth in <u>Section 10.4.4(b)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Setoff Dispute</font>&#8221; has the meaning set forth in <u>Section 10.4.4(b)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Setoff Dispute Notice</font>&#8221; has the meaning set forth in <u>Section 10.4.4(b)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">SMN Agreement</font>&#8221; means the Development, Option and License Agreement between the Parties dated January 3, 2012, as amended and/or restated from time to
          time.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Specific Performance Milestone Event</font>&#8221; has the meaning set forth in <u>Section 5.1.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Step-In Party</font>&#8221; has the meaning set forth in <u>Section 7.4.1</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Sublicensee</font>&#8221; means a Third Party to whom a Party or its Affiliates or Sublicensees has granted a sublicense or license under any Licensed Technology or
          Biogen Technology, as the case may be, licensed to such Party in accordance with the terms of this Agreement.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">118</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Subsequent Deal</font>&#8221; has the meaning set forth in <u>Section 10.2.3(b)(i)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Substitution Limit</font>&#8221; has the meaning set forth in <u>Section 1.4.2</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Superior Patent Right</font>&#8221; has the meaning set forth in <u>Section 7.2.4(d)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Target Related Biogen Program Claim</font>&#8221; has the meaning set forth in <u>Section 4.3.3(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Target Related Ionis Program Claim</font>&#8221; has the meaning set forth in<u> Section 4.3.2(a)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Target Sanction</font>&#8221; means when the therapeutic potential of a Collaboration Target has been demonstrated in pre-clinical disease models and such
          Collaboration Target has received approval by Ionis&#8217; RMC to expend resources to identify a human Development Candidate, all in accordance with Ionis&#8217; standard processes.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;[<font style="font-weight: bold; font-style: italic;">***</font>]&#8221; means the [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;[***] Letter&#8221; means that certain [***].</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Third Party</font>&#8221; means a Person or entity other than the Parties or their respective Affiliates.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Third Party Obligations</font>&#8221; means any financial and non-financial encumbrances, obligations, restrictions, or limitations imposed by an agreement between
          Ionis and a Third Party (including the Ionis In-License Agreements) that relate to a Product or a Collaboration Target, including field or territory restrictions, covenants, milestone payments, diligence obligations, sublicense revenue,
          royalties, or other payments.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Transition Services</font>&#8221; has the meaning set forth in <u>Section 10.4.5(b)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Trial Court</font>&#8221; has the meaning set forth in <u>Section 10.4.4(b)</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Trial Master File</font>&#8221; has the meaning set forth in <u>Section 4.8.4</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Trial Master File Deficiency Notice</font>&#8221; has the meaning set forth in <u>Section 4.8.4</u>.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">United States</font>&#8221; or &#8220;<font style="font-weight: bold; font-style: italic;">U.S.</font>&#8221; means the fifty states of the United States of America and all of
          its territories and possessions and the District of Columbia.</div>
        <div>&#160;</div>
        <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Valid Claim</font>&#8221; means a claim (a) of any issued, unexpired United States or foreign Patent Right, which will not, in the country of issuance, have been
          donated to the public, disclaimed, nor held invalid or unenforceable by a court of competent jurisdiction in an unappealed or unappealable decision, or (b) of any United States or foreign patent application within a Patent Right, which will not,
          in the country in question, have been cancelled, withdrawn, abandoned nor been pending for more than seven years, not including in calculating such seven-year period of time in which such application is in interference or opposition or similar
          proceedings or time in which a decision of an examiner is being appealed. Notwithstanding the foregoing, on a country-by-country basis, a patent application pending for more than seven years will not be considered to have any Valid Claim for
          purposes of this Agreement unless and until a patent meeting the criteria set forth in clause (a) above with respect to such application issues.</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">119</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
          <div id="DSPFPageHeader" style="width: 100%;">
            <div style="text-align: right; font-weight: bold;">CONFIDENTIAL</div>
            <div style="text-align: right; font-weight: bold;">EXECUTION VERSION</div>
          </div>
        </div>
        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Appendix 2</u></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Development Candidate Checklist</div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">[***]</div>
        <div style="text-align: center; font-weight: bold;"> <br>
        </div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">120</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u> </u>
          <table cellspacing="0" cellpadding="0" border="0" style="font-family: 'Times New Roman'; font-size: 10pt; color: #000000; width: 100%;" id="z13e7f7b0d5fc434587aeb261a8d0d82c">

              <tr>
                <td style="width: 100.00%;"><img src="image1.jpg"></td>
              </tr>

          </table>
        </div>
        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u> <br>
          </u></div>
        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Appendix 3</u></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Form of Side Letter</div>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zb25d9e7b05584d939e20c6fbcf7b943a" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;">

            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div>[<font style="font-style: italic;">Date</font>]</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div>Ionis Pharmaceuticals, Inc.</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div>2855 Gazelle Court</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div>Carlsbad, CA 92010</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div>Attention:&#160; Chief Executive Officer</div>
              </td>
            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">
                <div>E-mail: [***]</div>
              </td>
            </tr>

        </table>
        <div><br>
        </div>
        <div style="text-indent: 36pt; font-weight: bold;">Re:&#160; Establishment of Cost Estimates and Milestone Payments</div>
        <div>&#160;</div>
        <div>Dear [<font style="font-style: italic;">Chief Executive Officer</font>]:</div>
        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt;">Reference is hereby made to that certain Amended and Restated Neurology Drug Discovery and Development Collaboration, Option and License Agreement by and between Ionis and Biogen dated _________
          ___, [2020] (the &#8220;<font style="font-weight: bold; font-style: italic;">Neurology I Agreement</font>&#8221;), as supplemented and/or amended to date.&#160; Any capitalized terms not defined herein will have the meaning set forth in the Neurology I Agreement.</div>
        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt;">This letter memorializes the Cost Estimates and corresponding milestone payments set forth on the exhibit attached hereto as <u>Exhibit A</u> for the Collaboration Program and Development
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        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt;">Please indicate your concurrence with the accuracy of <u>Exhibit A</u> as agreed to by the Neurology JSC by executing a copy of this letter and returning it to Biogen. This letter may be
          executed in counterparts, each of which will be deemed an original, notwithstanding variations in format or file designation which may result from electronic transmission, store and printing of copies of this letter from separate computers or
          printers.&#160; Facsimile signatures and signatures transmitted via electronic mail in PDF format will be treated as original signatures.</div>
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            <div style="text-align: center; font-size: 8pt;">225 Binney Street, Cambridge, MA 02142 &#8226; Phone 781-464-2000 &#8226; www.biogen.com</div>
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            <tr>
              <td style="width: 50%; vertical-align: top;">&#160;</td>
              <td style="width: 50%; vertical-align: top;">
                <div>Sincerely,</div>
              </td>
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            <tr>
              <td style="width: 50%; vertical-align: top;">&#160;</td>
              <td style="width: 50%; vertical-align: top;">&#160;</td>
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            <tr>
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              <td style="width: 50%; vertical-align: top;">
                <div>[<font style="font-style: italic;">VP of Corporate Development</font>]</div>
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            <tr>
              <td style="width: 50%; vertical-align: top;">&#160;</td>
              <td style="width: 50%; vertical-align: top;">
                <div>Vice President, Corporate Development</div>
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            </tr>
            <tr>
              <td style="width: 50%; vertical-align: top;">&#160;</td>
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                <div>Biogen MA Inc.</div>
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                <div>CONFIRMED ON BEHALF OF IONIS PHARMACEUTICALS, INC.:</div>
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            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;">&#160;</td>
            </tr>
            <tr>
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                <div>By:</div>
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            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;" rowspan="1">&#160;</td>
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            <tr>
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                <div>Name:</div>
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            <tr>
              <td style="width: 100%; vertical-align: top;" rowspan="1">&#160;</td>
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            <tr>
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                <div>Title:</div>
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            </tr>
            <tr>
              <td style="width: 100%; vertical-align: top;" rowspan="1">&#160;</td>
            </tr>
            <tr>
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                <div>Date:</div>
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        <div>&#160;</div>
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                <div>Ionis Pharmaceuticals, Inc.</div>
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            <tr>
              <td style="width: 5%; vertical-align: top;">&#160;</td>
              <td style="width: 95%; vertical-align: top;">
                <div>2855 Gazelle Court</div>
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            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;">&#160;</td>
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                <div>Carlsbad, CA 92010</div>
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            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;">&#160;</td>
              <td style="width: 95%; vertical-align: top;">
                <div>Attention:&#160; General Counsel</div>
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            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;">&#160;</td>
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            <div style="text-align: center; font-size: 8pt;">225 Binney Street, Cambridge, MA 02142 &#8226; Phone 781-464-2000 &#8226; www.biogen.com</div>
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        <div style="text-align: center; font-weight: bold;">Exhibit A</div>
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                <div>Development Candidate:</div>
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              </td>
              <td style="width: 45%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
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        <div style="text-align: center;">[***<font style="font-variant: small-caps;"><u>]</u></font></div>
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                <td style="width: 100.00%;"><img src="image2.jpg"></td>
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                <div style="font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">[</font><font style="font-size: 10pt; font-style: italic;">Date</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">]</font></div>
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            <tr>
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            <tr>
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                <div style="color: rgb(0, 0, 0);">Ionis Pharmaceuticals, Inc.</div>
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                <div style="color: rgb(0, 0, 0);">2855 Gazelle Court</div>
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        <div style="text-indent: 36pt; font-weight: bold;">Re:&#160; Establishment of Biogen-Approved Costs</div>
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            <div style="text-align: center; font-size: 8pt;">225 Binney Street, Cambridge, MA 02142 &#8226; Phone 781-464-2000 &#8226; www.biogen.com</div>
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              </td>
            </tr>
            <tr>
              <td style="width: 50%; vertical-align: top;">&#160;</td>
              <td style="width: 50%; vertical-align: top;">&#160;</td>
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                <div style="font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">[</font><font style="font-size: 10pt; font-style: italic;">VP of Corporate Development</font><font style="font-size: 10pt; color: rgb(0, 0, 0);">]</font></div>
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              <td style="width: 50%; vertical-align: top;">&#160;</td>
              <td style="width: 50%; vertical-align: top;">
                <div style="color: rgb(0, 0, 0);">Vice President, Corporate Development</div>
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            <tr>
              <td style="width: 50%; vertical-align: top;">&#160;</td>
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                <div style="color: rgb(0, 0, 0);">Biogen MA Inc.</div>
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        <div><br>
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          <div>CONFIRMED ON BEHALF OF IONIS PHARMACEUTICALS, INC.:</div>
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              <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;" rowspan="1">&#160;</td>
              <td style="width: 45%; vertical-align: top;" rowspan="1">&#160;</td>
              <td style="width: 50%; vertical-align: top;" rowspan="1">&#160;</td>
            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top; padding-bottom: 2px;">
                <div style="color: rgb(0, 0, 0);">Name:</div>
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              <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;" rowspan="1">&#160;</td>
              <td style="width: 45%; vertical-align: top;" rowspan="1">&#160;</td>
              <td style="width: 50%; vertical-align: top;" rowspan="1">&#160;</td>
            </tr>
            <tr>
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              <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;" rowspan="1">&#160;</td>
              <td style="width: 45%; vertical-align: top;" rowspan="1">&#160;</td>
              <td style="width: 50%; vertical-align: top;" rowspan="1">&#160;</td>
            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top; padding-bottom: 2px;">
                <div style="color: rgb(0, 0, 0);">Date:</div>
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              <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
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        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" border="0" id="z319f48c36ea0496d871d7408ea372939" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;">

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                <div style="color: rgb(0, 0, 0);">Cc:</div>
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                <div style="color: rgb(0, 0, 0);">Ionis Pharmaceuticals, Inc.</div>
              </td>
            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;">&#160;</td>
              <td style="width: 95%; vertical-align: top;">
                <div style="color: rgb(0, 0, 0);">2855 Gazelle Court</div>
              </td>
            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;">&#160;</td>
              <td style="width: 95%; vertical-align: top;">
                <div style="color: rgb(0, 0, 0);">Carlsbad, CA 92010</div>
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            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;">&#160;</td>
              <td style="width: 95%; vertical-align: top;">
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              </td>
            </tr>
            <tr>
              <td style="width: 5%; vertical-align: top;">&#160;</td>
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                <div>E-mail: [***]</div>
              </td>
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            <div style="text-align: center; font-size: 8pt;">225 Binney Street, Cambridge, MA 02142 &#8226; Phone 781-464-2000 &#8226; www.biogen.com</div>
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        <div style="text-align: center; font-weight: bold;"><u>Exhibit A</u></div>
        <div>&#160;</div>
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              <td style="width: 34%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            </tr>

        </table>
        <div><br>
        </div>
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              <td nowrap="nowrap" style="width: 18%; vertical-align: top; padding-bottom: 2px;">
                <div>Development Candidate:</div>
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              <td style="width: 37%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 45%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            </tr>

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        <div><br>
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        <div>&#160;</div>
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            <tr>
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                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">[</font><font style="font-size: 10pt;">***<font style="font-weight: bold;">]</font></font></div>
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              <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 32%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
                <div style="font-weight: bold;">Biogen-Approved Costs</div>
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                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">Apportionment of </font></div>
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">Biogen-Approved Costs </font></div>
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">under Section </font><font style="font-size: 10pt;"><font style="font-weight: bold;">1.8.1</font></font></div>
                <div style="font-size: 12pt;"><font style="font-size: 10pt;"><font style="font-weight: bold;"> [</font>***<font style="font-weight: bold;">]</font></font></div>
              </td>
            </tr>
            <tr>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 32%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 32%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 33%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
            </tr>
            <tr>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 32%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 32%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 33%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
            </tr>
            <tr>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 32%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 32%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
              <td style="width: 1%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
              <td style="width: 33%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
            </tr>

        </table>
        <div><br>
        </div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div id="DSPFPageFooter" style="width: 100%;">
            <div style="text-align: center; font-size: 8pt;">225 Binney Street, Cambridge, MA 02142 &#8226; Phone 781-464-2000 &#8226; www.biogen.com</div>
          </div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <!--PROfilePageNumberReset%Num%127%- %-%-->
        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Appendix 4</u></div>
        <div>&#160;</div>
        <div style="text-align: center; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;">[</font><font style="font-size: 10pt;">***<font style="font-weight: bold;">] Letter<br>
            </font></font></div>
        <div>&#160;</div>
        <div style="text-align: center;">(<font style="font-style: italic;">See attached</font>)</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 127-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-size: 12pt; font-weight: bold;"><u><font style="font-size: 10pt; font-variant: small-caps;">Schedule</font><font style="font-size: 10pt;">&#160;</font><font style="font-size: 10pt;">1.5.2(b)</font></u></div>
        <div>&#160;</div>
        <div style="text-align: center; font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Apportionment of Certain Milestone Payments </u></font><font style="font-size: 10pt; font-weight: bold;"><u>and Biogen-Approved Costs</u></font></div>
        <div>&#160;</div>
        <div style="text-align: center;">[***]</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 128-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-size: 12pt; font-variant: small-caps; font-weight: bold;"><font style="font-size: 10pt;"><u>Schedule </u></font><font style="font-size: 10pt; color: rgb(0, 0, 0);"><u>1.11.1</u></font></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Neurology JSC Governance</div>
        <div>&#160;</div>
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            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top;">
                <div>The Neurology JSC will determine the Neurology JSC operating procedures, including frequency of meetings (at least quarterly), location of meetings, and responsibilities for agendas and minutes. The Neurology JSC will codify these
                  operating procedures in the written minutes of the first meeting.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z214ee2b991394bd29a932825e5d87aa2" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top;">
                <div>The Neurology JSC may hold meetings in person or by audio or video conference as determined by the Neurology JSC; but at least two meetings per year will be in person (one held at Ionis&#8217; facilities, and the other held at Biogen&#8217;s
                  facilities in the U.S.). Alliance Managers will attend Neurology JSC meetings as participating non-members. In addition, upon prior approval of the other Party, each Party may invite its employees or consultants to attend Neurology JSC
                  meetings, including any subject matter expert(s) with valuable knowledge of Collaboration Targets or the diseases associated with such Collaboration Targets.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z3cf4fa30724746f3a10a71fd1c3414a1" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top;">
                <div>The co-chairs will be responsible for ensuring that activities occur as set forth in this Agreement, including ensuring that Neurology JSC meetings occur, Neurology JSC recommendations are properly reflected in the minutes, and any
                  dispute is given prompt attention and resolved in accordance with <u>Section 1.11.3</u>, <u>Section 7.1.3</u> and <u>Section 12.1</u>, as applicable.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z233f3f0bc64845b1a734a086fd7f5b86" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
              <td style="width: auto; vertical-align: top;">
                <div>The Neurology JSC members from the same Party will collectively have one vote. The Neurology JSC will strive to make recommendations with approval of both Ionis members and Biogen members, and record such recommendations in the minutes
                  of the applicable Neurology JSC meeting.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z0a0896e1bf034f12b127bf5953304d00" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
              <td style="width: auto; vertical-align: top;">
                <div>The Neurology JSC may form subcommittees and working groups as it determines in order to carry out its activities under this Agreement, all of which will dissolve when the Neurology JSC dissolves.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 129-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-size: 12pt; font-variant: small-caps; font-weight: bold;"><font style="font-size: 10pt;"><u>Schedule </u></font><font style="font-size: 10pt; color: rgb(0, 0, 0);"><u>1.11.5</u></font></div>
        <div><br>
        </div>
        <div style="text-align: center; font-weight: bold;">Alliance Management Activities</div>
        <div>&#160;</div>
        <div>Each Alliance Manager is responsible for:</div>
        <div>&#160;</div>
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            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Promoting the overall health of the relationship between the Parties;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zb333c2ff0de44cc9b5dd3d993320c27a" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Developing a mutually agreed alliance launch plan covering any activities and systems that the Parties need to implement within the first 100 days after the Effective Date to support the Collaboration Programs;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zb9fa24f52e8e407caf6d7e0837d9265c" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Organizing Neurology JSC meetings, including agendas, drafting minutes, and publishing final minutes;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z518df7ed02124483b8a61ffbf5a018e6" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(d)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Supporting the co-chairs of the Neurology JSC with organization of meetings, information exchange, meeting minutes, and facilitating dispute resolution as necessary;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zb4dcd86f62944496977ea3916ec49187" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(e)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Preparing status and progress reports on the above as determined necessary by the Neurology JSC;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z803945330b4540cd95c7561f0a17805d" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(f)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ensuring compliance in maintaining the Ionis Internal ASO Safety Database as outlined in <u>Section 5.2</u>;</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="zbe8cf3fe604a4ba3b9619af3ac4d48f1" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(g)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Ensuring proper approval of publications prior to submission as required in <u>Section 11.4</u>; and</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <table cellspacing="0" cellpadding="0" id="z570170280fc742559171b80324ae77f4" class="DSPFListTable" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">(h)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Understanding and communicating the components contained in the relationship-management document provided by Ionis to Biogen, to assist Biogen in understanding and complying with the contractual obligations under the Ionis In-License
                  Agreements after the License Effective Date with respect to a Collaboration Program.</div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 130-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-size: 12pt; font-variant: small-caps; font-weight: bold;"><font style="font-size: 10pt;"><u>Schedule </u></font><font style="font-size: 10pt; color: rgb(0, 0, 0);"><u>4.6.3</u></font></div>
        <div><br>
        </div>
        <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">Ionis&#8217; Fully Absorbed Cost of Goods Methodology</div>
        <div style="text-align: center;">Cost Estimate <font style="color: rgb(0, 0, 0);">of API Cost per Kilogram</font></div>
        <div style="text-align: center; color: rgb(0, 0, 0);">(OOO&#8217;s)</div>
        <div><br>
        </div>
        <div style="text-align: center; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">[</font><font style="font-size: 10pt;">***]</font></div>
        <div><br>
        </div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 131-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
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        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Schedule 5.1.1</u></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Biogen&#8217;s Development and Commercialization Activities</div>
        <div>&#160;</div>
        <div style="text-align: center;">[***]</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 132-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule </u></font><font style="font-size: 10pt;"><u>6.6.2(f)</u></font></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Royalty Calculation Examples</div>
        <div>&#160;</div>
        <div style="text-align: center; font-size: 12pt;"><font style="font-size: 10pt;">[</font><font style="font-size: 10pt;">***]</font></div>
        <div><br>
        </div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 133-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule </u></font><font style="font-size: 10pt;"><u>6.6.2(g)</u></font></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Allocation of Net Sales</div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">[***]</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 134-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 6.8.1</u></font></div>
        <div><br>
        </div>
        <div style="text-align: center; font-weight: bold;">Certain Ionis In-License Agreements</div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">(Relevant to the Collaboration Programs and High Interest Targets as of the Effective Date)</div>
        <div>&#160;</div>
        <div style="text-align: center; font-size: 12pt;"><font style="font-size: 10pt; font-variant: small-caps;">[</font><font style="font-size: 10pt;">***]</font></div>
        <div><br>
        </div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 135-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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        </div>
        <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule </u></font><font style="font-size: 10pt;"><u>8.2.4(a)</u></font></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Ionis Core Technology Patents</div>
        <div>&#160;</div>
        <div style="text-align: center;">[***]</div>
        <div>&#160;</div>
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        <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 8.2.4(b)</u></font></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Ionis Manufacturing and Analytical Patents</div>
        <div>&#160;</div>
        <div style="text-align: center;">[***]</div>
        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 137-</font></div>
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        <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 8.2.4(c)</u></font></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Ionis Product-Specific Patents</div>
        <div>&#160;</div>
        <div style="text-align: center;">[***]</div>
        <div style="text-align: center;"> <br>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 138-</font></div>
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        <div style="text-align: center; font-size: 12pt; font-variant: small-caps; font-weight: bold;"><font style="font-size: 10pt;"><u>Schedule </u></font><font style="font-size: 10pt; color: rgb(0, 0, 0);"><u>8.2.8</u></font></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Prior Agreements</div>
        <div>&#160;</div>
        <div style="text-align: center; font-size: 12pt;"><font style="font-size: 10pt; color: rgb(0, 0, 0);">[</font><font style="font-size: 10pt;">***]</font></div>
        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 139-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
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        <div style="text-align: center; font-size: 12pt; font-weight: bold;"><font style="font-size: 10pt; font-variant: small-caps;"><u>Schedule</u></font><font style="font-size: 10pt;"><u> 10.4.4(b)</u></font></div>
        <div><br>
        </div>
        <div style="text-align: center; text-indent: -36pt; margin-left: 36pt; font-weight: bold;">Advisory Panel Regarding Setoff Disputes</div>
        <div>&#160;</div>
        <div style="text-align: center;">[***]</div>
        <div>&#160;</div>
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          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 140-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
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        </div>
        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Schedule 10.4.5</u></div>
        <div>&#160;</div>
        <div style="text-align: center; font-weight: bold;">Transition Services</div>
        <div><br>
        </div>
        <div style="text-align: center;">[***]</div>
        <div>&#160;</div>
        <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
          <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; font-weight: normal; font-style: normal;" id="DSPFPageNumber">- 141-</font></div>
          <div id="DSPFPageBreak" style="page-break-after:always;">
            <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
        </div>
        <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Schedule 12.1.2</u></div>
        <div><br>
        </div>
        <div style="text-align: center; font-weight: bold;">Mediation</div>
        <div>&#160;</div>
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            <tr>
              <td style="width: 36pt; vertical-align: top; font-weight: bold;">1.</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div style="font-size: 12pt;"><font style="font-size: 10pt; font-weight: bold;"><u>Mediation</u></font><font style="font-size: 10pt;">.</font></div>
              </td>
            </tr>

        </table>
        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;"><font style="font-weight: bold;">1.1</font>&#160;&#160;&#160;&#160;&#160; &#160;&#160; &#160;&#160; If a Dispute cannot be resolved pursuant to <u>Section 12.1.1</u> of the Agreement (Escalation), the Parties agree to
          try in good faith to resolve any such Dispute by non-binding mediation administered by the American Arbitration Association (the &#8220;<font style="font-weight: bold; font-style: italic;">AAA</font>&#8221;) in accordance with its Commercial Mediation
          Procedures then in effect (the &#8220;<font style="font-weight: bold; font-style: italic;">Procedures</font>&#8221;), as modified by this Section 1.1 of this <font style="font-variant: small-caps;"><u>Schedule 12.1.2</u></font>.&#160; The mediation will be
          conducted by a single mediator appointed by agreement of the Parties, within 15 days after either Party notifies the other Party of its intention to mediate such Dispute, or failing such agreement, appointed by the AAA in accordance with the
          Procedures; <font style="font-style: italic;">provided</font> that in either case the mediator will be a retired Delaware state or federal judge.&#160; Unless otherwise mutually agreed upon by the Parties, the mediation proceedings will be conducted
          in Dover, Delaware. The Parties agree that they will share equally the costs and expenses of the mediation; <font style="font-style: italic;">provided</font> that each Party will bear its own attorneys&#8217; fees and associated costs and expenses.&#160;
          The mediation conference will be held within [***] days after appointment of the mediator, and will last no more than two consecutive days unless otherwise mutually agreed upon by the Parties.&#160; Any resolution of a Dispute by mediation pursuant to
          this Section 1.1 of these mediation procedures will be in writing and signed by duly authorized representatives of both Parties.</div>
        <div>&#160;</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;"><font style="font-weight: bold;">1.2</font>&#160;&#160;&#160;&#160;&#160; &#160; &#160;&#160; If the Parties cannot resolve a Dispute in accordance with <u>Section 1.1</u> of this <font style="font-variant: small-caps;"><u>Schedule 12.1.2</u></font>, then such Dispute will be resolved by the Parties in accordance with <u>Section 12.2</u> of the Agreement (Governing Law; Jurisdiction; Venue; Service of Process).</div>
        <div>&#160;</div>
        <div> <br>
        </div>
        <div>
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<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>3
<FILENAME>ex10-2.htm
<DESCRIPTION>EXHIBIT 10.2
<TEXT>
<html>
  <head>
    <title></title>
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<body bgcolor="#ffffff" style="font-family: 'Times New Roman'; font-size: 10pt; text-align: left; color: #000000;">
  <p> </p>
  <hr noshade="noshade" align="center" style="height: 4px; color: rgb(0, 0, 0); background-color: rgb(0, 0, 0); text-align: center; margin-left: auto; margin-right: auto; border: medium none;">
  <div style="text-align: right; font-weight: bold;">Exhibit 10.2</div>
  <div style="text-align: justify; font-weight: bold;">Confidential<br>
    Execution Version</div>
  <div><br>
  </div>
  <div style="text-align: justify; font-weight: bold;">CERTAIN IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THE EXHIBIT BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) WOULD BE COMPETITIVELY HARMFUL IF PUBLICLY DISCLOSED.&#160; SUCH EXCLUDED INFORMATION HAS BEEN
    MARKED WITH &#8220;[***]&#8221;.</div>
  <div><br>
  </div>
  <div style="text-align: center; font-weight: bold;">COLLABORATION AND LICENSE AGREEMENT</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <div style="text-align: center; font-weight: bold;">between</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <div style="text-align: center; font-weight: bold;">BICYCLETX LIMITED</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <div style="text-align: center; font-weight: bold;">and</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <div style="text-align: center; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <div style="text-align: center; font-weight: bold;">Dated as of July 9, 2021</div>
  <div><br>
  </div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  <!--PROfilePageNumberReset%LCR%1%- % -%-->
  <div style="text-align: justify;">Confidential</div>
  <div><br>
  </div>
  <div style="text-align: center; font-weight: bold;">TABLE OF CONTENTS</div>
  <div><br>
    <table cellspacing="0" cellpadding="0" border="0" id="z8621d3540d67429c846d9ec1a5842782" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;">

        <tr>
          <td style="vertical-align: top;" colspan="2">
            <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 1 DEFINITIONS</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">1</div>
          </td>
        </tr>
        <tr>
          <td style="vertical-align: top;" colspan="2">
            <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 2 GRANT OF RIGHTS</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">14</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: justify; text-indent: 18pt;">2.1</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Grant to Ionis</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">14</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: justify; text-indent: 18pt;">2.2</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Excluded Targets; Reserved Targets; Gatekeeper</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">14</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: justify; text-indent: 18pt;">2.3</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Grants to Bicycle</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">15</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: justify; text-indent: 18pt;">2.4</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Sublicenses</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">15</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: justify; text-indent: 18pt;">2.5</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Retained Rights</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">15</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: justify; text-indent: 18pt;">2.6</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">No Implied Licenses</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">16</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: justify; text-indent: 18pt;">2.7</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Exclusivity</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">16</div>
          </td>
        </tr>
        <tr>
          <td style="vertical-align: top;" colspan="2">
            <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 3 COLLABORATION MANAGEMENT</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">16</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">3.1</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Joint Steering Committee</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">16</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">3.2</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">General Provisions Applicable to the JSC</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">17<br>
            </div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">3.3</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Decisions</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">18<br>
            </div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">3.4</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Limitations on Authority</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">18</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">3.5</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Alliance Manager</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">18</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">3.6</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Discontinuation of the JSC</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">18</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">3.7</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Expenses</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">18</div>
          </td>
        </tr>
        <tr>
          <td style="vertical-align: top;" colspan="2">
            <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 4 RESEARCH AND DEVELOPMENT</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">19<br>
            </div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.1</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Collaboration Overview</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">19</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.2</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Research Plan</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">19</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.3</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Research Activities</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">19</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.4</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Development of Licensed Products</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">19</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.5</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Diligence</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">20</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.6</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Updates</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">21</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.7</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Technology Transfer</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">22</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.8</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Target Exclusivity; Collaboration Targets</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">22</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.9</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">BicycleTx Use of Gatekeeper to Clear Targets</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">24</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.10</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Subcontracting</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">24</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.11</div>
          </td>
          <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="margin-right: 36pt;">Regulatory Matters</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
            <div style="text-align: right;">24</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top;">
            <div style="margin-right: 36pt; text-indent: 18pt;">4.12</div>
          </td>
          <td style="width: 90%; vertical-align: top;">
            <div style="margin-right: 36pt;">Records</div>
          </td>
          <td style="width: 5%; vertical-align: top;">
            <div style="text-align: right;">25</div>
          </td>
        </tr>

    </table>
  </div>
  <div><br>
  </div>
  <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- i -</font></div>
    <div style="page-break-after: always;" id="DSPFPageBreak">
      <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
  </div>
  <table cellspacing="0" cellpadding="0" border="0" id="zf518bc15fb624ef3951214b7c693f0d0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: rgb(0, 0, 0);">

      <tr>
        <td style="vertical-align: top;" colspan="2">
          <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 5 COMMERCIALIZATION</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">25</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">5.1</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">In General</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">25</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">5.2</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Commercialization Diligence</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">25</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">5.3</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Commercial Updates</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">25</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">5.4</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Commercial Supply of Compounds and Licensed Products</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">26<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="vertical-align: top; background-color: rgb(204, 238, 255);" colspan="2">
          <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 6 PAYMENTS AND RECORDS</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">26<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.1</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Upfront Payment</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">26<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.2</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Equity Consideration</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">26<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.3</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">IND Acceptance Fee</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">26<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.4</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Development and Regulatory Milestones</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">27<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.5</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Collaboration Milestones</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">28<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.6</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Royalties</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">28<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.7</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Royalty Payments and Reports</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">29<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.8</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Mode of Payment</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">29<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.9</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Taxes</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">29<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.10</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Interest on Late Payments</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">30</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">6.11</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Audit</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">31</div>
        </td>
      </tr>
      <tr>
        <td style="vertical-align: top; background-color: rgb(204, 238, 255);" colspan="2">
          <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 7 INTELLECTUAL PROPERTY</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">31<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">7.1</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Ownership of Intellectual Property</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">31<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">7.2</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Patent Prosecution and Maintenance</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">32</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">7.3</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Patent Enforcement</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">35<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">7.4</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Infringement Claims by Third Parties</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">36<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">7.5</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Invalidity or Unenforceability Defenses or Actions</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">36<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">7.6</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Inventor&#8217;s Remuneration</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">37<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">7.7</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Common Interest</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">37<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="vertical-align: top; background-color: rgb(204, 238, 255);" colspan="2">
          <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 8 CONFIDENTIALITY AND NON-DISCLOSURE</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">37<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">8.1</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Confidentiality Obligations</div>
        </td>
        <td style="width: 5%; vertical-align: top; text-align: right;"> 37<br>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">8.2</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Exceptions</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">38<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">8.3</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Permitted Disclosures</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">38<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">8.4</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Use of Name</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">40</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">8.5</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Press Releases</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">40</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">8.6</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Publications</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">40</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">8.7</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Destruction or Return of Confidential Information</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">41</div>
        </td>
      </tr>

  </table>
  <div><br>
  </div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- ii -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
      <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0px; height: 2px; color: rgb(0, 0, 0); background-color: rgb(0, 0, 0); clear: both;"></div>
  </div>
  <table cellspacing="0" cellpadding="0" border="0" id="z2262277b5b994b5e97c2199a428a389a" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: rgb(0, 0, 0);">

      <tr>
        <td style="vertical-align: top;" colspan="2">
          <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 9 REPRESENTATIONS AND WARRANTIES</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">41</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">9.1</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Mutual Representations and Warranties</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">41</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">9.2</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Additional Representations, Warranties, and Covenants of Bicycle</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">41</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">9.3</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Additional Representations, Warranties and Covenants of Ionis</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">42</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">9.4</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">DISCLAIMER OF WARRANTIES</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">43<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="vertical-align: top; background-color: rgb(204, 238, 255);" colspan="2">
          <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 10 INDEMNIFICATION; INSURANCE</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">43</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">10.1</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Indemnification of Bicycle</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">43</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">10.2</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Indemnification of Ionis</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">43</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">10.3</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Notice of Claim</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">44</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">10.4</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Control of Defense</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">44<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">10.5</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Limitation of Liability</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">44<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">10.6</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Insurance</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">44<br>
          </div>
        </td>
      </tr>
      <tr>
        <td style="vertical-align: top;" colspan="2">
          <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 11 TERM AND TERMINATION</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">45</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">11.1</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Term</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">45</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">11.2</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Termination for Convenience</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">45</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">11.3</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Termination for Uncured Material Breach</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">45</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">11.4</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Termination for Insolvency</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">46</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">11.5</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Rights in Bankruptcy</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">46</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">11.6</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Effects of Termination</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">46</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">11.7</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Accrued Rights; Surviving Obligation</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">47</div>
        </td>
      </tr>
      <tr>
        <td style="vertical-align: top;" colspan="2">
          <div style="margin-right: 36pt; font-weight: bold;">ARTICLE 12 MISCELLANEOUS</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">47</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.1</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Governing Law and Service</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">47</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.2</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Dispute Resolution</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">48</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.3</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Entire Agreement; Amendments</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">49</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.4</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Severability</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">49</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.5</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Waiver and Non-Exclusion of Remedies</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">49</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.6</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Force Majeure</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">49</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.7</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Export Control</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">49</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.8</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Relationship of the Parties</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">50</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.9</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Assignment</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">50</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.10</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Notices</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">50</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.11</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">English Language</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">51</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.12</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Performance by Affiliates</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">51</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.13</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Construction</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">52</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.14</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">Schedule</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">52</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.15</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Further Assurance</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">52</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top;">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.16</div>
        </td>
        <td style="width: 90%; vertical-align: top;">
          <div style="margin-right: 36pt;">No Benefit to Third Parties</div>
        </td>
        <td style="width: 5%; vertical-align: top;">
          <div style="text-align: right;">52</div>
        </td>
      </tr>
      <tr>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt; margin-left: 18pt;">12.17</div>
        </td>
        <td style="width: 90%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="margin-right: 36pt;">Counterparts</div>
        </td>
        <td style="width: 5%; vertical-align: top; background-color: rgb(204, 238, 255);">
          <div style="text-align: right;">52</div>
        </td>
      </tr>

  </table>
  <div><br>
  </div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- iii -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
      <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0px; height: 2px; color: rgb(0, 0, 0); background-color: rgb(0, 0, 0); clear: both;"></div>
  </div>
  <!--PROfilePageNumberReset%Num%1%- % -%-->
  <div style="text-align: justify;">Confidential</div>
  <div><br>
  </div>
  <div style="text-align: center; font-weight: bold;">COLLABORATION AND LICENSE AGREEMENT</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;">This <font style="font-weight: bold; font-variant: small-caps;">Collaboration and License Agreement</font> (the &#8220;<font style="font-weight: bold;">Agreement</font>&#8221;) is made<font style="font-weight: bold;">&#160;</font>and entered into effective as of July 9, 2021 (the &#8220;<font style="font-weight: bold;">Effective Date</font>&#8221;) by and between <font style="font-weight: bold; font-variant: small-caps;">BicycleTx Limited</font>, a company incorporated in
    England and Wales with a place of business at Building 900, Babraham Research Campus, Cambridge CB22 3AT, UK (&#8220;<font style="font-weight: bold;">BicycleTx</font>&#8221;), and Ionis Pharmaceuticals, Inc., a Delaware corporation with a principal place of
    business at 2855 Gazelle Court, Carlsbad, California 92010, USA (&#8220;<font style="font-weight: bold;">Ionis</font>&#8221;).&#160; BicycleTx and Ionis are referred to herein individually as a &#8220;<font style="font-weight: bold;">Party</font>&#8221; and collectively as the &#8220;<font style="font-weight: bold;">Parties</font>&#8221;.</div>
  <div>&#160;</div>
  <div style="text-align: center; font-weight: bold;">RECITALS</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold; font-variant: small-caps;">Whereas</font>, BicycleTx, a biopharmaceutical company, has developed certain proprietary technology relating to the use of Bicycles directed
    to transferrin receptors;</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold; font-variant: small-caps;">Whereas</font>, Ionis, a biotechnology company, has expertise in the research and development of pharmaceutical products, and is working to
    create and develop novel pharmaceutical products;</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold; font-variant: small-caps;">Whereas</font>, BicycleTx and Ionis entered into that certain Evaluation and Option Agreement dated as of December 31, 2020 (the &#8220;<font style="font-weight: bold;">Option Agreement</font>&#8221;) pursuant to which BicycleTx granted to Ionis an exclusive option to obtain an exclusive license under BicycleTx&#8217;s relevant technology to research, develop, manufacture, and commercialize products
    incorporating TfR1 Bicycles (as defined below) and Ionis has exercised such option in accordance with the terms of the Option Agreement;</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold; font-variant: small-caps;">Whereas</font>, subject to the terms and conditions of this Agreement, BicycleTx will exclusively partner with Ionis with respect to Compounds
    in the Field; and</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold; font-variant: small-caps;">Whereas</font>, in connection with this transaction, Bicycle Therapeutics plc, an Affiliate of BicycleTx, and Ionis are entering into a stock
    purchase agreement on even date herewith (the &#8220;<font style="font-weight: bold;">Stock Purchase Agreement</font>&#8221;) pursuant to which Ionis is purchasing shares of Bicycle Therapeutics plc in accordance with the terms thereof.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;">&#160;<font style="font-weight: bold; font-variant: small-caps;">Now Therefore</font>, in consideration of the foregoing premises and the mutual promises, covenants, and conditions set forth herein and
    other valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties, intending to be legally bound, hereby agree as follows:</div>
  <div>&#160;</div>
  <div style="text-align: center; font-weight: bold;">ARTICLE 1</div>
  <div style="text-align: center; font-weight: bold;">DEFINITIONS</div>
  <div style="text-align: justify; text-indent: 36pt;"> <br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">Unless otherwise specifically provided herein, the following terms shall have the following meanings:</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Accounting Standards</font>&#8221; means, with respect to a Party and its Affiliates, either (a) International Financial
    Reporting Standards (&#8220;<font style="font-weight: bold;">IFRS</font>&#8221;) or (b) United States generally accepted accounting principles (&#8220;<font style="font-weight: bold;">GAAP</font>&#8221;), in either case ((a) or (b)) that are used at the applicable time, and
    as consistently applied, by such Party or any of its Affiliates.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#8220;<font style="font-weight: bold;">Adverse Ruling</font>&#8221; has the meaning set forth in <u>Section 11.3.2</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 1 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
      <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0px; height: 2px; color: rgb(0, 0, 0); background-color: rgb(0, 0, 0); clear: both;"></div>
  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Affiliate</font>&#8221; means, with respect to a Party, any Person that, directly or indirectly, through one (1) or more
    intermediaries, controls, is controlled by, or is under common control with such Party, for so long as such control exists.&#160; For purposes of this definition, &#8220;control&#8221; and, with correlative meanings, the terms &#8220;controlled by&#8221; and &#8220;under common control
    with&#8221; means (a) the possession, directly or indirectly, of the power to direct the management or policies of a Person, whether through the ownership of voting securities, by contract relating to voting rights or corporate governance, or otherwise; or
    (b) the ownership, directly or indirectly, of more than fifty percent (50%) of the voting securities or other ownership interest of a Person (or, with respect to a limited partnership or other similar entity, its general partner or controlling entity).</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#8220;<font style="font-weight: bold;">Agreement</font>&#8221; has the meaning set forth in the preamble hereto.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#8220;<font style="font-weight: bold;">Alliance Manager</font>&#8221; has the meaning set forth in <u>Section 3.5</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Applicable Law</font>&#8221; means federal, state, local, national, and supra-national laws, statutes, rules, and
    regulations, including any rules, regulations, guidelines, or other requirements enacted by a government authority, including Regulatory Authorities, major national securities exchanges or major securities listing organizations, that may be in effect
    from time to time during the Term and applicable to the performance by a Party of its obligations, or exercise of its rights, under this Agreement.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#8220;<font style="font-weight: bold;">ASO</font>&#8221; means a compound comprising one or more Oligonucleotides [***].&#160; The Parties acknowledge that [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.8</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#8220;<font style="font-weight: bold;">ASO-Related Claim</font>&#8221; has the meaning set forth in <u>Section 7.2.1(b)</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.9</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#8220;<font style="font-weight: bold;">ASO-Related Claim Application</font>&#8221; has the meaning set forth in <u>Section 7.2.1(b)</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.10</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Auditor</font>&#8221; has the meaning set forth in <u>Section 6.11</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.11</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Available Target(s)</font>&#8221; means:</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 108pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; with respect to a request by Ionis, any Target that as of the date the Gatekeeper (or BicycleTx, as applicable) receives a Target Nomination Notice from Ionis for such Target, or Ionis
    initiates a request with the Gatekeeper pursuant to <u>Sections 4.8.2</u> or <u>4.8.4</u>, as applicable, is not (i) a BicycleTx Excluded Target, (ii) [***], (A) a Target that was placed on the Gatekeeper List during the BicycleTx Initial Target
    Designation Period pursuant to <u>Section 4.8.3</u>, or (B) a Target placed on the Gatekeeper List by BicycleTx pursuant to <u>Section 4.8.6</u>; and</div>
  <div style="text-indent: 108pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 108pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;with respect to a request by BicycleTx under <u>Section 4.8.3</u> or <u>Section 4.9</u> following the termination of Oligo Exclusivity, any Target that as of the date BicycleTx makes a
    BicycleTx Target Request, is not a Collaboration Target, including, for clarity, any Target placed on the Gatekeeper List by Ionis pursuant to <u>Section </u>4.8.4 (subject to the limitations set forth therein).</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.12</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Bankruptcy Code</font>&#8221; has the meaning set forth in <u>Section 11.5.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.13</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Bicycle</font>&#8221; means a monomeric peptide or peptide derivative crosslinked via a central scaffold to form a
    conformationally constrained structure with more than one cyclic component.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.14</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx</font>&#8221; has the meaning set forth in the preamble hereto.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.15</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Excluded Targets</font>&#8221; means Targets with respect to which BicycleTx has granted exclusive rights to a
    Third Party under the BicycleTx Existing Third Party Agreements.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 2 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.16</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Existing Third Party Agreements</font>&#8221; means (a) that certain agreement between [***], and (b) that
    certain agreement between [***], in each case as such agreements are in effect on the Effective Date.&#160; For clarity, during the Term when Oligo Exclusivity applies, BicycleTx [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.17</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Indemnitees</font>&#8221; has the meaning set forth in <u>Section 10.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.18</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Initial Target Designation Period</font>&#8221; has the meaning set forth in <u>Section 4.8.3</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.19</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Intellectual Property</font>&#8221; means the BicycleTx Know-How, BicycleTx Patents, and BicycleTx&#8217;s interest
    in any Joint Inventions and Joint Patents.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.20</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Know-How</font>&#8221; means all Know-How that (a) is Controlled by BicycleTx or any of its Affiliates on the
    Effective Date or during the Term and (b) (i) with respect to all Know-How other than the Know-How included in the [***], and (ii) with respect to [***], in each case of (i) and (ii), for the Research and Exploitation of Compounds and Licensed Products
    in the Field.&#160; For clarity, &#8220;BicycleTx Know-How&#8221; includes any TfR1 BicycleTx Inventions and BicycleTx Product Inventions.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.21</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Patents</font>&#8221; means all Patents that (a) are Controlled by BicycleTx or any of its Affiliates on the
    Effective Date or during the Term and (b) Cover BicycleTx Know-How.&#160; For clarity, &#8220;BicycleTx Patents&#8221; includes any BicycleTx Product Patents.&#160; Without limiting the foregoing, an exemplary list of BicycleTx Patents is attached hereto as <u>Schedule
      9.2.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.22</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Platform</font>&#160;<font style="font-weight: bold;">IP</font>&#8221; means Know-How and Patents that are Controlled
    by BicycleTx or any of its Affiliates on the Effective Date or during the Term solely to the extent such Know-How and Patents Cover or specifically relate to<font style="font-weight: bold;">&#160;</font>[***].&#160; The list of Patents included in the BicycleTx
    Platform IP (the &#8220;<font style="font-weight: bold;">BicycleTx Platform Patents</font>&#8221;) <font style="font-weight: bold;">&#160;</font>is attached hereto as <u>Schedule 1.22</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.23</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Product Invention</font>&#8221; means a Product Invention solely invented by employees, agents, or independent
    contractors of BicycleTx or its Affiliates.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.24</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Product Patents</font>&#8221; means all Patents that Cover BicycleTx Product Inventions.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.25</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Relevant Patent</font>&#8221; has the meaning set forth in <u>Section 7.2.1(b)</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.26</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Research Stage Target</font>&#8221; has the meaning set forth in <u>Section 4.8.6(a)</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.27</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Target</font>&#8221; has the meaning set forth in <u>Section 4.9</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.28</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">BicycleTx Target Request</font>&#8221; has the meaning set forth in <u>Section </u>4.9.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.29</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Breach Cure Period</font>&#8221; has the meaning set forth in <u>Section 11.3.1</u>.<font style="font-weight: bold;">&#160;</font></div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.30</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Breach Notice</font>&#8221; has the meaning set forth in <u>Section 11.3.1</u>.<font style="font-weight: bold;">&#160;</font></div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.31</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Breaching Party</font>&#8221; has the meaning set forth in <u>Section 11.3.</u><u>1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.32</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Business Day</font>&#8221; means a day other than a Saturday or Sunday on which banking institutions in San Diego,
    California and London, England are open for business.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 3 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.33</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Calendar Quarter</font>&#8221; means each successive period of three calendar months commencing on January 1, April 1,
    July 1, and October 1, except that the first Calendar Quarter of the Term shall commence on the Effective Date and end on the day immediately prior to the first to occur of January 1, April 1, July 1 or October 1 after the Effective Date, and the last
    Calendar Quarter shall end on the last day of the Term.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.34</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Calendar Year</font>&#8221; means each successive period of twelve (12) calendar months commencing on January 1 and
    ending on December 31, except that the first Calendar Year of the Term shall commence on the Effective Date and end on December 31 of the year in which the Effective Date occurs and the last Calendar Year of the Term shall commence on January 1 of the
    year in which the Term ends and end on the last day of the Term.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.35</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Clinical Trial</font>&#8221; means a human clinical study (a) in which a pharmaceutical product is administered to human
    subjects and (b) that is designed to (i) establish that a pharmaceutical product is reasonably safe for continued testing; (ii) investigate the safety and efficacy of the pharmaceutical product for its intended use, and to define warnings, precautions
    and adverse reactions that may be associated with the pharmaceutical product in the dosage range to be prescribed; (iii) support Regulatory Approval of such pharmaceutical product or label expansion of such pharmaceutical product; or (iv) obtain or
    maintain marketing approval and for a purpose other than to obtain, support or maintain Regulatory Approval, including any and all post-marketing commitments.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.36</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Collaboration Target</font>&#8221; has the meaning set forth in <u>Section 4.8.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.37</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Combination Product</font>&#8221; means (a) a single pharmaceutical formulation containing as its active ingredients both
    (i) a Compound and (ii) one or more other therapeutically or prophylactically active ingredients that are not Compounds (each such other therapeutically or prophylactically active ingredient, a &#8220;<font style="font-weight: bold;">Non-Compound Active
      Agent</font>&#8221;) or (b) a combination therapy comprised of (i) a Compound and (ii) one or more other therapeutically or prophylactically active products containing at least one Non-Compound Active Agent, whether priced and sold together in a single
    package containing such multiple products or packaged separately but sold together for a single price, in each case (a) and (b), including all dosage forms, formulations, presentations, line extensions, and package configurations.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.38</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Commercialization</font>&#8221;<font style="font-weight: bold;">&#160;</font>means any and all activities directed to the
    preparation for sale of, offering for sale of, or sale of a pharmaceutical product, including activities related to marketing, promoting, selling, distributing, importing, and exporting such product, and interacting with Regulatory Authorities
    regarding any of the foregoing.&#160; When used as a verb, &#8220;<font style="font-weight: bold;">to Commercialize</font>&#8221; and &#8220;<font style="font-weight: bold;">Commercializing</font>&#8221; means to engage in Commercialization, and &#8220;<font style="font-weight: bold;">Commercialized</font>&#8221;
    has a corresponding meaning.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.39</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Commercially Reasonable Efforts</font>&#8221;<font style="font-weight: bold;">&#160;</font>means, with respect to the
    performance of Research, Development, Commercialization, or Manufacturing activities with respect to a Compound or a Licensed Product, the carrying out of such activities using efforts and resources comparable to the efforts and resources [***], taking
    into account issues of safety and efficacy, [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.40</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#8220;<font style="font-weight: bold;">Compound</font>&#8221; means a TfR1 Bicycle conjugated to an ASO, where such ASO is directed to a Target that is not a
    BicycleTx Excluded Target.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 4 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.41</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Confidential Information</font>&#8221; means any information provided orally, visually, in writing or other form by or on
    behalf of one (1) Party (or an Affiliate or representative of such Party) to the other Party (or to an Affiliate or representative of such other Party) in connection with this Agreement, whether prior to, on, or after the Effective Date, including
    information relating to the terms of this Agreement, the identities of Collaboration Targets and Available Targets, any Research or Exploitation of any Licensed Product, any Know-How with respect thereto developed by or on behalf of the disclosing
    Party or its Affiliates, or the scientific, regulatory, or business affairs or other activities of either Party.&#160; In addition, all information disclosed by a Party to the other under the Option Agreement shall be deemed to be such Party&#8217;s Confidential
    Information disclosed under this Agreement.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.42</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Control</font>&#8221;<font style="font-weight: bold;">&#160;</font>means, with respect to any Know-How, Regulatory
    Documentation, material, Patent, or other property right, the possession of the right, whether directly or indirectly, and whether by ownership, license, covenant not to sue, or otherwise (other than by operation of the license and other grants in <u>Sections

      2.1</u> and <u>2.2</u>), to grant a license, sublicense, or other right to or under such Know-How, Regulatory Documentation, material, Patent, or other property right, as provided for herein without violating the terms of any agreement or other
    arrangement with any Third Party; provided that with respect to any Know-How, Regulatory Documentation, material, Patent, or other property right obtained by BicycleTx from a Third Party after the Effective Date, BicycleTx shall be deemed to Control
    such Know-How, Regulatory Documentation, material, Patent, or other property right, as applicable, only if it possesses the right to grant such license, sublicense, or other right thereto without being obligated to pay any royalties or other
    consideration therefor, unless Ionis agrees to (a) pay such royalties or other consideration arising as a result of Ionis&#8217; or its Affiliate&#8217;s or Sublicensee&#8217;s use or practice of such Know-How, Regulatory Documentation, material, Patent, or other
    property right under this Agreement and (b) comply with the terms and conditions of such agreement as it relates to Ionis and this Agreement.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.43</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Cover</font>&#8221; means, with respect to a particular subject matter at issue and a relevant Patent, that, in the
    absence of a license under or ownership of such Patent, the developing, making, using, offering for sale, promoting, selling, exporting, or importing of such subject matter would infringe one or more Valid Claims of such Patent (considering any pending
    claim included in such Patent as if such pending claim were to issue in an issued Patent).</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.44</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">CRO</font>&#8221; shall have the meaning set forth in <u>Section 4.2.3</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.45</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.46</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Development</font>&#8221; means all activities related to (i) human clinical lead optimization with the goal of
    identifying a Development Candidate (as defined below), test method development and stability testing, toxicology, formulation, process development, manufacturing scale-up, qualification and validation, quality assurance/quality control,
    (ii)IND-Enabling Toxicology Studies, (iii) Clinical Trials, including Manufacturing in support thereof, (iv) statistical analysis and report writing, (v) the preparation and submission of Drug Approval Applications, regulatory affairs with respect to
    the foregoing and all other activities necessary or reasonably useful or otherwise requested or required by a Regulatory Authority as a condition or in support of obtaining or maintaining a Regulatory Approval.&#160; When used as a verb, &#8220;<font style="font-weight: bold;">Develop</font>&#8221; means to engage in Development.&#160; For purposes of clarity, Development shall include any submissions and activities required in support thereof required by Applicable Laws or a Regulatory Authority as a
    condition or in support of obtaining a pricing or reimbursement approval for a Compound or Licensed Product.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.47</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Development Candidate</font>&#8221; with respect to Ionis means a Compound that is [***] for further Development and
    Commercialization in accordance with Ionis&#8217; [***].&#160; With respect to BicycleTx, Development Candidate means an active pharmaceutical ingredient [***] for further Development and Commercialization in accordance with BicycleTx&#8217;s [***].</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 5 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.48</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Diligence Extension Fee</font>&#8221; has the meaning set forth in <u>Section 4.5.3(b)</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.49</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Dispute</font>&#8221;<font style="font-weight: bold;">&#160;</font>has the meaning set forth in <u>Section 12.2</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.50</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Dollars</font>&#8221; or &#8220;<font style="font-weight: bold;">$</font>&#8221; means United States Dollars.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.51</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Drug Approval Application</font>&#8221; means an NDA and any corresponding foreign application in the Territory,
    including, with respect to the European Union, a Marketing Authorization Application (a &#8220;<font style="font-weight: bold;">MAA</font>&#8221;) filed with the EMA or with the applicable Regulatory Authority of a country in Europe with respect to the mutual
    recognition or any other national approval procedure.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.52</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Effective Date</font>&#8221;<font style="font-weight: bold;">&#160;</font>means the effective date as set forth in the
    preamble hereto.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.53</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">EMA</font>&#8221;<font style="font-weight: bold;">&#160;</font>means the European Medicines Agency and any successor
    agency(ies) or authority having substantially the same function.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.54</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">European Major Market</font>&#8221; means each of the United Kingdom, France, Germany, Italy, and Spain.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.55</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Exclusivity Obligations</font>&#8221; has the meaning set forth in <u>Section 2.7.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.56</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Existing Collaboration Target</font>&#8221; has the meaning set forth in <u>Section 4.8.2</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.57</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Existing Patents</font>&#8221; has the meaning set forth in <u>Section 9.2.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.58</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Exploit</font>&#8221; or &#8220;<font style="font-weight: bold;">Exploitation</font>&#8221; means to Develop, use, make, have made,
    Manufacture, sell, have sold, offer for sale, import, and Commercialize.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.59</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Extension Notice</font>&#8221; has the meaning set forth in <u>Section 4.5.3(c)</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.60</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">FDA</font>&#8221;<font style="font-weight: bold;">&#160;</font>means the United States Food and Drug Administration and any
    successor agency(ies) or authority having substantially the same function.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.61</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">FFDCA</font>&#8221;<font style="font-weight: bold;">&#160;</font>means the United States Federal Food, Drug, and Cosmetic Act,
    21 U.S.C. &#167; 301 et seq., as amended from time to time, together with any rules, regulations and requirements promulgated thereunder (including all additions, supplements, extensions, and modifications thereto).</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.62</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Field</font>&#8221; means all diagnostic, therapeutic, prophylactic, and preventative uses in humans.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.63</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">First Commercial Sale</font>&#8221; means, with respect to a Licensed Product and a country, the first sale for monetary
    value for use or consumption by the end user of such Licensed Product in such country after Regulatory Approval for such Licensed Product has been obtained in such country.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.64</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">FTE</font>&#8221; means a full-time equivalent person-year, based upon a total of no less than [***] working hours per
    year, pro-rated as necessary, undertaken in connection with the conduct of research in a Research Plan.&#160; In no circumstance can the work of any given person exceed one (1) FTE.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.65</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Gatekeeper</font>&#8221; has the meaning set forth in <u>Section 2.2.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.66</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Gatekeeper List</font>&#8221; has the meaning set forth in <u>Section 2.2.1</u>.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 6 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.67</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Generic Product</font>&#8221; means, with respect to a particular Licensed Product that has received Regulatory Approval
    in a regulatory jurisdiction in the Territory and is being marketed and sold by Ionis or any of its Affiliates or Sublicensees in such jurisdiction, a pharmaceutical product that (a) is sold in such jurisdiction by a Third Party that is not an
    Affiliate or Sublicensee of Ionis, and did not purchase or acquire such product in a chain of distribution that included Ionis or any of its Affiliates or Sublicensees, (b) has received Regulatory Approval in such jurisdiction for at least one of the
    same indications as such Licensed Product as a &#8220;generic drug&#8221;, &#8220;generic medicinal product&#8221;, &#8220;bioequivalent&#8221;, or similar designation of interchangeability by the applicable Regulatory Authority in such jurisdiction pursuant to an expedited, abbreviated,
    or bibliographic approval process in accordance with the then-current rules and regulations in such jurisdiction, where such approval referred to or relied on (i) the approved Drug Approval Application for such Licensed Product held by Ionis, its
    Affiliate, or a Sublicensee in such jurisdiction or (ii) the data contained or incorporated by reference in such approved Drug Approval Application for such Licensed Product in such jurisdiction.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.68</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">GLP</font>&#8221; means current good laboratory practice standards promulgated or endorsed by the FDA, as defined in U.S.
    21 C.F.R. Part 58 (or such other comparable regulatory standards in jurisdictions outside the U.S.), as updated from time to time.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.69</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">IND</font>&#8221; means an application filed with a Regulatory Authority for authorization to commence Clinical Trials,
    including (a) an Investigational New Drug Application as defined in the FFDCA or any successor application or procedure filed with the FDA, (b) any equivalent thereof in other countries or regulatory jurisdictions, (e.g., a Clinical Trial Application
    (CTA) in the European Union), and (c) all supplements, amendments, variations, extensions, and renewals thereof that may be filed with respect to the foregoing.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.70</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">IND Acceptance</font>&#8221; means, with respect to a Licensed Product, the earliest of (a) receipt of notice of
    acceptance by the FDA or the EMA of the filing of an IND for such Licensed Product, (b) the passage of any period of time determined by Applicable Law by the end of which the FDA or EMA, as applicable, is supposed to comment on such filing, extended if
    any such comments were made by the period of time necessary to address such comments to the reasonable satisfaction of the FDA or EMA, as applicable, or (c) the first dose of such Licensed Product in a Clinical Trial in the U.S. or in any country in
    the European Union.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.71</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">IND Acceptance Credit</font>&#8221; shall have the meaning set forth in <u>Section 6.3</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.72</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">IND Acceptance Fee</font>&#8221; shall have the meaning set forth in <u>Section 6.3</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.73</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">IND-Enabling Toxicology Study</font>&#8221; means, with respect to a Licensed Product, an in vivo toxicology study
    conducted under conditions of GLP that is required for filing an IND for such Licensed Product with the FDA or EMA.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.74</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Indemnification Claim Notice</font>&#8221;<font style="font-weight: bold;">&#160;</font>has the meaning set forth in <u>Section

      10.3</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.75</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Indemnified Party</font>&#8221;<font style="font-weight: bold;">&#160;</font>has the meaning set forth in <u>Section 10.3</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.76</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Indemnifying Party</font>&#8221; has the meaning set forth in <u>Section 10.3</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.77</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Initiation</font>&#8221; means, with respect to a Licensed Product and a Clinical Trial, the first dosing of the first
    patient with such Licensed Product in such Clinical Trial.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 7 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.78</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Intellectual Property</font>&#8221; has the meaning set forth in <u>Section 11.5.1</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.79</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Interim Gatekeeper</font>&#8221; has the meaning set forth in <u>Section 2.2.2</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.80</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Internal Development Program</font>&#8221; means on a Target-by-Target basis, a [***] internal program of BicycleTx,
    pursuant to which BicycleTx is conducting Research, development and/or commercialization activities in connection with compounds or products directed to such Target [***].</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.81</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Invention</font>&#8221; means any invention, process, method, utility, formulation, composition of matter, article of
    manufacture, material, creation, discovery, development, or finding, or any improvement thereto, whether or not patentable, including all intellectual property rights therein.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.82</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis</font>&#8221; has the meaning set forth in the preamble hereto.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.83</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Indemnitees</font>&#8221; has the meaning set forth in <u>Section 10.2</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.84</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Initial Target Designation Period</font>&#8221; has the meaning set forth in <u>Section 4.8.2</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.85</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Intellectual Property</font>&#8221; means the Ionis Know-How, Ionis Patents, and Ionis&#8217; interest in any Joint
    Inventions and Joint Patents.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.86</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Know-How</font>&#8221; means all Know-How that (a) is Controlled by Ionis or any of its Affiliates on the Effective
    Date or during the Term and (b) is necessary or reasonably useful for the Exploitation of Compounds and Licensed Products in the Field.&#160; For clarity, &#8220;Ionis Know-How&#8221; includes any Ionis Product Inventions.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.87</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Patents</font>&#8221; means all Patents that (a) are Controlled by Ionis or any of its Affiliates on the Effective
    Date or during the Term and (b) Cover Ionis Know-How.&#160; For clarity, &#8220;Ionis Patents&#8221; includes any Ionis Product Patents.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.88</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Product Invention</font>&#8221; means a Product Invention solely invented by employees, agents, or independent
    contractors of Ionis or its Affiliates.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.89</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Product Patents</font>&#8221; means all Patents that Cover Ionis Product Inventions.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.90</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Research Stage Target</font>&#8221; has the meaning set forth in <u>Section 4.8.4</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.91</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ionis Withholding Tax Action</font>&#8221; has the meaning set forth in <u>Section 6.9.3</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.92</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Joint Inventions</font>&#8221; has the meaning set forth in <u>Section 7.1.2(b)</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.93</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Joint Patents</font>&#8221; means all Patents that Cover Joint Inventions.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.94</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Joint Product Patents</font>&#8221; means all Joint Patents that Cover [***] developed jointly by employees, agents, or
    independent contractors of one Party and its Affiliates together with employees, agents, or independent contractors of the other Party and its Affiliates.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.95</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">JSC</font>&#8221; has the meaning set forth in <u>Section 3.1.1</u>.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.96</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Know-How</font>&#8221; means all commercial, technical, scientific, and other know&#8209;how and information, Inventions,
    discoveries, trade secrets, knowledge, technology, methods, processes, practices, formulae, amino acid sequences, nucleotide sequences, instructions, skills, techniques, procedures, ideas, designs, drawings, computer programs, specifications, data and
    results (including biological, chemical, pharmacological, toxicological, pharmaceutical, physical and analytical, preclinical, clinical, safety, manufacturing and quality control data (including regulatory data, study designs, and protocols), reagents
    and materials (including assays and compounds) in all cases, whether or not confidential, proprietary, or patentable, in written, electronic, or any other form now known or hereafter developed, but expressly excluding all Patents.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.97</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Licensed Product</font>&#8221;<font style="font-weight: bold;">&#160;</font>means any product that contains or incorporates a
    Compound, whether alone or in combination with other active ingredients, in any form, formulation, presentation, or dosage, and for any mode of administration.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.98</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Losses</font>&#8221; has the meaning set forth in <u>Section 10.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.99</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">MAA</font>&#8221;<font style="font-weight: bold;">&#160;</font>has the meaning set forth in <u>Section 1.51</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.100</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Major Market</font>&#8221; means each of the United States, the European Major Markets, and Japan.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.101</font>&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Manufacture</font>&#8221;, &#8220;<font style="font-weight: bold;">Manufactured</font>&#8221;, and &#8220;<font style="font-weight: bold;">Manufacturing</font>&#8221;
    means all activities related to the synthesis, making, production, processing, analysis, purifying, formulating, filling, finishing, packaging, labeling, shipping, and holding of a pharmaceutical product, or any raw materials, intermediate thereof,
    including process development, process qualification and validation, scale-up, pre-clinical, clinical and commercial production and analytic development, product characterization, stability testing, quality assurance, and quality control, whether by a
    Party itself or through a Third Party.&#160; For clarity, Manufacture of a Compound or Licensed Product will include activities related to the synthesis, making, production, processing, formulating, analyzing for manufacturing purposes and purifying of the
    TfR1 Bicycle that is incorporated into the applicable Compound or Licensed Product.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.102</font>&#160;&#160;&#160; &#160; &#8220;<font style="font-weight: bold;">Market Exclusivity</font>&#8221; means any exclusive marketing rights or data exclusivity rights conferred by any
    Regulatory Authority with respect to a Licensed Product other than Patents, including rights conferred in the U.S. under the Hatch-Waxman Act or the FDA Modernization Act of 1997 (including pediatric exclusivity), or rights similar thereto outside the
    U.S., such as Directive 2001/83/EC (as amended) in the EU.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.103</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">MHRA</font>&#8221;<font style="font-weight: bold;">&#160;</font>means the United Kingdom&#8217;s Medicines and Healthcare products
    Regulatory Agency and any successor agency(ies) or authority having substantially the same function.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.104</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Mono Product</font>&#8221; has the meaning set forth in <u>Section 1.107</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.105</font>&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">NDA</font>&#8221; means a &#8220;<font style="font-weight: bold;">New Drug Application</font>&#8221;, as defined in the FFDCA, as
    amended, and applicable regulations promulgated thereunder by the FDA and all amendments and supplements thereto filed with the FDA, or the equivalent application filed with any Regulatory Authority, including all documents, data, and other information
    concerning a pharmaceutical product, which are necessary for gaining Regulatory Approval to market and sell such pharmaceutical product in the relevant jurisdiction.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.106</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Naked Sublicense</font>&#8221; means a sublicense to a Third Party that [***].</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 9 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.107</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Net Sales</font>&#8221; means, with respect to any Licensed Product, the gross amounts invoiced for sales or other
    dispositions of such Licensed Product by or on behalf of Ionis or its Affiliates or Sublicensees to Third Parties, less the following deductions to the extent included in the gross invoiced sales price for such Licensed Product and determined in
    accordance with Accounting Standards or otherwise directly paid or incurred by Ionis or its Affiliates or Sublicensees, as applicable, with respect to the sale or other disposition of such Licensed Product:</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">1.107.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***];</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">1.107.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***];</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">1.107.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***];</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">1.107.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***];</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">1.107.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***]; and</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">1.107.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***].</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;">In no event will any particular amount identified above be deducted more than once in calculating Net Sales.&#160; Sales of a Licensed Product between Ionis and its Affiliates or Sublicensees for resale
    shall be excluded from the computation of Net Sales, but the subsequent resale of such Licensed Product to a Third Party shall be included within the computation of Net Sales.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;">The supply of Licensed Product for no charge or at cost as samples for charitable or promotional purposes, for use in non-clinical or clinical trials or any test or other studies reasonably necessary
    to comply with Applicable Laws shall not be included in the computation of Net Sales.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;">If a Licensed Product is sold as part of a Combination Product in a country, the Net Sales with respect to the Combination Product in such country shall be determined as follows:</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;">If a Licensed Product is a Combination Product, the Net Sales for such Combination Product shall be calculated as follows: [***].</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;">Notwithstanding the foregoing, the definition of net sales that [***]; provided that [***].&#160; Ionis shall promptly notify BicycleTx of any [***], including the details thereof.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.108</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Nominated Target</font>&#8221; has the meaning set forth in <u>Section 4.8.5</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.109</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Non-Breaching Party</font>&#8221; has the meaning set forth in <u>Section 11.3.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.110</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Non-Compound Active Agent</font>&#8221; has the meaning set forth in <u>Section</u><u>&#160;1.37</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.111</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Oligo Exclusivity</font>&#8221; has the meaning set forth in <u>Section 2.7.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.112</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Oligonucleotide</font>&#8221; means [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.113</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Oxford</font>&#8221; shall have the meaning set forth in <u>Section 8.3.3(g)</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.114</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Party</font>&#8221;<font style="font-weight: bold;">&#160;</font>and<font style="font-weight: bold;">&#160;</font>&#8220;<font style="font-weight: bold;">Parties</font>&#8221;<font style="font-weight: bold;">&#160;</font>has the meaning set forth in the preamble hereto.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 10 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.115</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Patents</font>&#8221; means (a) all national, regional and international patents and patent applications, including
    provisional patent applications, (b) all patent applications filed either from such patents, patent applications or provisional applications or from an application claiming priority from either of these, including divisionals, continuations,
    continuations-in-part, provisionals, converted provisionals and continued prosecution applications, (c) any and all patents that have issued or in the future issue from the foregoing patent applications ((a) and (b)), including utility models, petty
    patents and design patents and certificates of invention, (d) any and all extensions or restorations by existing or future extension or restoration mechanisms, including revalidations, reissues, re-examinations and extensions (including any pediatric
    exclusivity and other such exclusivities that are attached to patents, patent term extensions, supplementary protection certificates and the like) of the foregoing patents or patent applications ((a), (b), and (c)), and (e) any similar rights,
    including so-called pipeline protection or any importation, revalidation, confirmation or introduction patent or registration patent or patent of additions to any of such foregoing patent applications and patents.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.116</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Person</font>&#8221;<font style="font-weight: bold;">&#160;</font>means an individual, sole proprietorship, partnership,
    limited partnership, limited liability partnership, corporation, limited liability company, business trust, joint stock company, trust, unincorporated association, joint venture or other similar entity or organization, including a government or
    political subdivision, department, or agency of a government.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.117</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Pivotal Trial</font>&#8221; means a human clinical trial of a Licensed Product that (a) satisfies the requirements of 21
    C.F.R. section 312.21(c), or its foreign equivalent or (b) is a registration trial designed to establish statistically significant efficacy and safety of such Licensed Product for the purpose of enabling the preparation and submission of a Drug
    Approval Application, as evidenced by (i) an agreement with or statement from the FDA on a Special Protocol Assessment or equivalent in another country, or (ii) other guidance or minutes issued by the FDA for such registration trial or equivalent in
    another country, in each case ((i) and (ii)) where the results of such clinical trial are intended to be used to establish both safety and efficacy of such Licensed Product in patients that are the subject of such trial and serve as the basis for
    obtaining initial or supplemental Regulatory Approval of such Licensed Product in such country.&#160; For clarity, [***].</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.118</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">PMDA</font>&#8221;<font style="font-weight: bold;">&#160;</font>means Japan&#8217;s Pharmaceuticals and Medical Devices Agency and
    any successor agency(ies) or authority having substantially the same function.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.119</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Product Invention</font>&#8221; means, on a Compound-by-Compound and Licensed Product-by-Licensed Product basis, an
    Invention that (a) is generated in the performance of activities under this Agreement and (b) specifically relates to a Compound or Licensed Product.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.120</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Product Patents</font>&#8221; means all Patents that Cover any Product Invention.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.121</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Publishing Notice</font>&#8221; has the meaning set forth in <u>Section 8.6</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.122</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Publishing Party</font>&#8221; has the meaning set forth in <u>Section 8.6</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.123</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Redacted Agreement</font>&#8221; shall have the meaning set forth in <u>Section 8.3.2</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.124</font>&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Regulatory Approval</font>&#8221; means, with respect to a country or other jurisdiction in the Territory, all approvals
    (including Drug Approval Applications), licenses, registrations, or authorizations of any Regulatory Authority necessary to Commercialize a Compound or Licensed Product in such country or other jurisdiction, and including pricing or reimbursement
    approval in such country or other jurisdiction where such pricing and reimbursement approval is legally required for the sale of such Compound or Licensed Product.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 11 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.125</font>&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Regulatory Authority</font>&#8221; means any applicable supra-national, federal, national, regional, state, provincial, or
    local governmental or regulatory authority, agency, department, bureau, commission, council, or other entities (e.g., the FDA, EMA, MHRA, and PMDA) regulating or otherwise exercising authority with respect to activities contemplated in this Agreement,
    including the Exploitation of the Licensed Products in the Territory.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.126</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Regulatory Documentation</font>&#8221; means all (a) applications (including all INDs and Drug Approval Applications),
    registrations, licenses, authorizations, and approvals (including Regulatory Approvals), (b) correspondence and reports submitted to or received from Regulatory Authorities (including minutes and official contact reports relating to any communications
    with any Regulatory Authority) and all supporting documents with respect thereto, including all regulatory drug lists, advertising and promotion documents, adverse event files, and complaint files, and (c) data contained or relied upon in any of the
    foregoing, in each case ((a), (b), and (c)) to the extent relating to a Compound or Licensed Product.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.127</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Research</font>&#8221; means preclinical research and other non-clinical testing, including gene function, gene
    expression, target validation research, and investigating inhibition of a target in therapeutic models, but specifically excludes Development (including, for the avoidance of doubt, all IND-Enabling Toxicology Studies), Exploitation, or
    Commercialization.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.128</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Research Activities</font>&#8221; has the meaning set forth in <u>Section 4.2</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.129</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Research Plan</font>&#8221; has the meaning set forth in <u>Section 4.2</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.130</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Research Term</font>&#8221; means the period of time commencing on the Effective Date and ending upon the completion of
    all activities under the Research Plan.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.131</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Reserved Target</font>&#8221; has the meaning set forth in <u>Section 2.2.3</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.132</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Royalty Floor Country</font>&#8221; means each of the [***].</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.133</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Royalty Term</font>&#8221; means, with respect to each Licensed Product and each country in the Territory, the period
    beginning on the date of the First Commercial Sale of such Licensed Product in such country and ending on the latest to occur of (a) the [***] anniversary of the First Commercial Sale of such Licensed Product in such country or other jurisdiction, (b)
    the expiration date of the last-to-expire Valid Claim of [***] that [***] such Licensed Product in such country, and (c) the expiration of all Market Exclusivity for such Licensed Product in such country.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.134</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Senior Officer</font>&#8221; means, with respect to BicycleTx, its [***] or his/her designee, and with respect to Ionis,
    its [***] or his/her designee.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.135</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">SOFR</font>&#8221; has the meaning set forth in <u>Section 6.10</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.136</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Stock Purchase Agreement</font>&#8221; has the meaning set forth in the Recitals.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.137</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Sublicensee</font>&#8221;<font style="font-weight: bold;">&#160;</font>means a Person, other than an Affiliate, that is
    granted a sublicense by Ionis under the license grant in <u>Section 2.1</u> as provided in <u>Section 2.4</u>.</div>
  <div style="text-align: justify; text-indent: 36pt;"> <br>
  </div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 12 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.138</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Target</font>&#8221; means (a) [***].&#160; Such Target shall be deemed to include [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.139</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Target Acceptance Date</font>&#8221; has the meaning set forth in <u>Section 4.8.5</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.140</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Target Availability Notice</font>&#8221; has the meaning set forth in <u>Section 4.8.5</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.141</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Target Exclusivity</font>&#8221; has the meaning set forth in <u>Section 4.8.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.142</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Target Nomination Notice</font>&#8221; has the meaning set forth in <u>Section 4.8.5</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.143</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Target Sanction</font>&#8221; means with respect to Ionis, [***], all in accordance with Ionis&#8217; standard procedures
    consistently applied.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.144</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Term</font>&#8221; has the meaning set forth in <u>Section 11.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.145</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Terminated Asset</font>&#8221; means, with respect to a Target that is terminated by either Party under <u>ARTICLE 11</u>,
    each Compound and Licensed Product directed to such Terminated Target.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.146</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Terminated Target</font>&#8221; has the meaning set forth in <u>Section 11.6</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.147</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Territory</font>&#8221; means worldwide.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.148</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">TfR1 Bicycle</font>&#8221; means a Bicycle that is directed to a Transferrin Transporter, including any such composition
    provided by BicycleTx to Ionis under the Option Agreement and any such composition that is synthesized by the Parties under the Evaluation Studies (as defined in the Option Agreement) under the Option Agreement or the Research Plan.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.149</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">TfR1 BicycleTx Invention</font>&#8221; means an Invention that [***].&#160; For clarity, [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.150</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.151</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Third Party</font>&#8221;<font style="font-weight: bold;">&#160;</font>means any Person other than BicycleTx, Ionis, and their
    respective Affiliates.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.152</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Third Party Claims</font>&#8221;<font style="font-weight: bold;">&#160;</font>has the meaning set forth in <u>Section 10.1</u>.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.153</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Transferrin Transporter</font>&#8221; means the protein coded by the gene TFRC1 (transferrin receptor), a cell surface
    protein important for the cellular iron uptake through the process of receptor-mediated endocytosis, which has also been proposed as a mechanism for transporting other molecules across the blood-brain barrier by the same process.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.154</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Ultra-Rare Disease Product</font>&#8221; means a Licensed Product with an estimated target patient population that is
    less than [***] patients in the U.S.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.155</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">United States</font>&#8221; or &#8220;<font style="font-weight: bold;">U.S.</font>&#8221; means the United States of America and its
    territories and possessions (including the District of Columbia and Puerto Rico).</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.156</font>&#160;&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">United States &#8211; United Kingdom Income Tax Convention</font>&#8221; means the Convention between the government of the
    United States of America and the government of the United Kingdom of Great Britain and Northern Ireland for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income and Capital Gains.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 13 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.157</font>&#160;&#160;&#160;&#160;&#160; &#8220;<font style="font-weight: bold;">Valid Claim</font>&#8221; means (a) a claim of any issued and unexpired Patent that has not been revoked or held
    unenforceable, unpatentable, or invalid by a decision of a court or other governmental agency of competent jurisdiction that is not appealable or has not been appealed within the time allowed for appeal, and that has not been abandoned, disclaimed,
    denied, or admitted to be invalid or unenforceable through reissue, re-examination, or disclaimer or otherwise and (b) a claim of a pending patent application that has not been cancelled, withdrawn, or abandoned or finally rejected by an administrative
    agency action from which no appeal can be taken and that has not been pending for more than [***].</div>
  <div>&#160;</div>
  <div style="text-align: center; font-weight: bold;">ARTICLE 2</div>
  <div style="text-align: center; font-weight: bold;">GRANT OF RIGHTS</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Grant to Ionis</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">2.1.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Subject to the terms and conditions of this Agreement, BicycleTx (on behalf of itself and its Affiliates) hereby grants to Ionis a license (with
    the right to grant sublicenses in accordance with <u>Section 2.4</u>), under the BicycleTx Intellectual Property to Research Compounds and Licensed Products in the Field in the Territory.&#160; This license under <u>Section 2.1.1</u> is exclusive
    (including with regard to BicycleTx and its Affiliates, except as provided in <u>Section 2.5</u>) so long as Ionis maintains Oligo Exclusivity and non-exclusive if Ionis loses Oligo Exclusivity.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">2.1.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Subject to the terms and conditions of this Agreement, including <u>Section 4.5.4</u>, BicycleTx (on behalf of itself and its Affiliates) hereby
    grants to Ionis an exclusive (including with regard to BicycleTx and its Affiliates, except as provided in <u>Section 2.5</u>) license (with the right to grant sublicenses in accordance with <u>Section 2.4)</u> under the BicycleTx Intellectual
    Property to Exploit Compounds and Licensed Products in the Field in the Territory for so long as Ionis maintains Oligo Exclusivity.&#160; For clarity, upon the termination of Oligo Exclusivity, the license granted in this <u>Section 2.1.2</u> shall
    automatically terminate, and the license grant set forth in <u>Section 2.1.3</u> shall apply.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">2.1.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;On a Collaboration Target-by-Collaboration Target basis, and subject to the terms and conditions of this Agreement, BicycleTx (on behalf of itself
    and its Affiliates) hereby grants to Ionis an exclusive (including with regard to BicycleTx and its Affiliates, except as provided in <u>Section 2.5</u>) license (with the right to grant sublicenses in accordance with <u>Section 2.4</u>), under the
    BicycleTx Intellectual Property to Exploit Compounds and Licensed Products directed to such Collaboration Target in the Field in the Territory.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">2.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Excluded Targets; Reserved Targets; Gatekeeper</font>.&#160; The Parties acknowledge and agree that the BicycleTx
    Excluded Targets are excluded from Ionis&#8217; licenses under <u>Section 2.1</u>.&#160; To enable the Parties to effectively manage their respective rights and obligations under this Agreement, the Parties hereby agree as follows:</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;"><font style="font-weight: bold;">2.2.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Gatekeeper.&#160; </font>Promptly following the Effective Date, BicycleTx shall engage an independent Third Party
    mutually agreeable to the Parties (the &#8220;<font style="font-weight: bold;">Gatekeeper</font>&#8221;) for the purposes of performing the applicable functions set forth in this <u>Section 2.2</u>, including (a) maintaining the list of BicycleTx Excluded
    Targets, and (b) maintaining the list of Reserved Targets ((a) and (b) together, the &#8220;<font style="font-weight: bold;">Gatekeeper List</font>&#8221;).&#160; [***].&#160; Such engagement shall be on terms consistent with this Agreement and mutually agreeable to the
    Parties, including provisions relating to confidentiality.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 14 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 117pt;"><font style="font-weight: bold;">2.2.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Managing BicycleTx Excluded Targets</font>.&#160; In conjunction with or immediately following the appointment of the
    Gatekeeper, BicycleTx shall provide the Gatekeeper with a current list of BicycleTx Excluded Targets.&#160; Until the appointment of the Gatekeeper, the list of BicycleTx Excluded Targets shall be held by an independent Third Party that has been mutually
    agreed by the Parties (the &#8220;<font style="font-weight: bold;">Interim Gatekeeper</font>&#8221;).&#160; The identity of the BicycleTx Excluded Targets shall be deemed the Confidential Information of BicycleTx.&#160; Following the appointment of a Gatekeeper, BicycleTx
    shall notify the Gatekeeper promptly of [***].</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;"><font style="font-weight: bold;">2.2.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Reserved Targets</font>.&#160; Ionis may designate up to [***] Targets that Ionis wishes to reserve to be potentially
    the subject of its Research and Development efforts under this Agreement, and that are not BicycleTx Excluded Targets (&#8220;<font style="font-weight: bold;">Reserved Targets</font>&#8221;) as further described in this <u>Section 2.2.3.</u>&#160; The Parties
    acknowledge and agree that as of the Effective Date, BicycleTx has provided the Interim Gatekeeper with the current list of BicycleTx Excluded Targets, and Ionis has provided the Interim Gatekeeper with its current list of Reserved Targets.&#160; During the
    Term when Oligo Exclusivity applies, [***].&#160; Ionis may not [***] without BicycleTx&#8217;s prior written consent.&#160; Each Reserved Target shall remain on the Gatekeeper List until [***] directed to such Reserved Target and notifies BicycleTx in writing of the
    applicable Target.&#160; Upon the termination of Oligo Exclusivity, if applicable, all Reserved Targets shall be removed from the Gatekeeper List.&#160; The identity of the Reserved Targets shall be the Confidential Information of Ionis.&#160; BicycleTx agrees that
    it will not take any action that would cause a Reserved Target to become BicycleTx Excluded Target.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;"><font style="font-weight: bold;">2.2.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Targets [</font>***<font style="font-weight: bold;">]</font>.&#160; Ionis acknowledges and agrees that no rights are
    granted by BicycleTx to Ionis under this Agreement to conduct Research or Development activities in connection with any BicycleTx Excluded Target, or any compound or product directed thereto.&#160; [***].&#160; Notwithstanding the foregoing, if such Target later
    ceases to be a BicycleTx Excluded Target, and [***], and Ionis will have the right to deliver a Target Nomination Notice for such Target in accordance with <u>Section 4.8.5</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Grants to Bicycle</font>.&#160; Subject to the terms and conditions of this Agreement, Ionis hereby grants to BicycleTx,
    during the Research Term, a non-exclusive, royalty-free license, without the right to grant sublicenses (other than to permitted subcontractors of BicycleTx in accordance with <u>Section 4.10</u>), under the Ionis Intellectual Property solely for
    purposes of performing BicycleTx&#8217;s obligations under, and as set forth in, the Research Plan.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Sublicenses</font>.&#160; Ionis shall have the right to grant sublicenses, through multiple tiers of sublicensees, under
    the licenses granted in <u>Section 2.1</u>, to its Affiliates and Third Parties; provided that (a) any sublicense by Ionis or its Affiliates of the rights granted pursuant to <u>Section 2.1.1</u> to a Third Party shall only permit such Sublicensee to
    grant further sublicenses (i) [***], (b) each such sublicense shall be consistent with the terms and conditions of this Agreement, including terms of confidentiality and non-use no less restrictive than those set forth in this Agreement, (c) Ionis may
    not grant to any Third Party any rights to prosecute or enforce any BicycleTx Patents, (d) Ionis shall remain directly liable to BicycleTx with respect to its obligations under this Agreement and for the performance and acts and omissions of all
    Sublicensees, and (e) Ionis will [***].&#160; As soon as reasonably practicable (but in any case, within [***]) after the execution of any such sublicense agreement, Ionis shall [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Retained Rights</font>. Notwithstanding the exclusive license granted to Ionis pursuant to <u>Section 2.1</u>
    during the Term and without limiting <u>Section 2.7</u>, BicycleTx shall retain all rights under the BicycleTx Intellectual Property (a) to perform, and to subcontract pursuant to <u>Section 4.10</u>, its obligations under this Agreement, (b) [***],
    and (c) for any purpose outside the scope of the license and rights granted under <u>Section 2.1</u>.&#160; For clarity, BicycleTx shall have the right to collaborate with academic institutions and non-profit organizations with respect to the use of TfR1
    Bicycles for the delivery of ASOs for Research purposes, except with respect to [***].</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 15 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">No Implied Licenses</font>.&#160; Except as expressly provided herein, BicycleTx grants no other right or license to
    Ionis hereunder, including any rights or licenses to the BicycleTx Intellectual Property not expressly granted herein.&#160; Except as expressly provided herein, Ionis grants no other right or license to BicycleTx hereunder, including any rights or licenses
    to the Ionis Intellectual Property not expressly granted herein.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Exclusivity</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">2.7.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;During the Term, except with respect to BicyleTx&#8217;s conduct of Research Activities under this Agreement, and subject to <u>Section 4.5.4</u>,
    BicycleTx shall not, on its own, with its Affiliates, or with a Third Party (including by the grant of any license, but subject to BicycleTx&#8217;s rights under <u>Section 2.5</u>), [***] in the Field in the Territory, and during such period, Ionis shall
    have the exclusive right to perform the foregoing activities (&#8220;<font style="font-weight: bold;">Oligo Exclusivity</font>&#8221;).&#160; Notwithstanding the foregoing, Oligo Exclusivity shall apply only to Compounds directed to Targets that are not BicycleTx
    Excluded Targets.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">2.7.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;BicycleTx shall not, on its own, with its Affiliates, or with a Third Party (including the grant of any license) [***].&#160; To enable BicycleTx to
    comply with its obligations in the foregoing sentence, Ionis shall [***].</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">2.7.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;If BicycleTx terminates Oligo Exclusivity in accordance with <u>Section 4.5.4</u>, then BicycleTx&#8217;s obligations under <u>Section 2.7.1</u> shall
    terminate, and in lieu of such obligations, BicycleTx shall not, on its own, with its Affiliates, or with a Third Party (including the grant of any license, but subject to BicycleTx&#8217;s rights under <u>Section 2.5</u>) [***].</div>
  <div>&#160;</div>
  <div style="text-align: center; font-weight: bold;">ARTICLE 3</div>
  <div style="text-align: center; font-weight: bold;">COLLABORATION MANAGEMENT</div>
  <div style="text-align: justify;"><font style="font-weight: bold;"> <br>
    </font></div>
  <div style="text-align: justify; text-indent: 72pt;">
    <div style="font-weight: bold; text-indent: 36pt;">3.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Joint Steering Committee<font style="font-weight: normal;">.</font></div>
    <div>&#160;</div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">3.1.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Formation</font>.&#160; Within [***] days after the Effective Date, the Parties shall establish a joint steering
    committee (the &#8220;<font style="font-weight: bold;">JSC</font>&#8221;).&#160; The JSC shall consist of two representatives from each of the Parties (with the number of such representatives at each Party&#8217;s election, but with each Party collectively having one vote).&#160;
    Each representative shall have the requisite experience and seniority to enable such person to make decisions on behalf of the applicable Party with respect to the issues falling within the decision making authority of the JSC.&#160; From time to time, each
    Party may substitute one or more of its representatives to the JSC on written notice to the other Party.&#160; Each Party shall select from its representatives a representative who will chair the JSC jointly with the selected representative from the other
    Party. Each Party may replace its co-chairperson from time to time by informing the other Party in writing.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">3.1.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Specific Responsibilities</font>. The JSC shall oversee the performance of the Research Plan and serve as a
    consultative and information-exchange body for the Development of Licensed Products.&#160; In particular, the JSC shall:</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;review and discuss the Research Plan, and review and approve any amendments thereto;</div>
  <div style="text-align: justify; text-indent: 117pt;"> <br>
  </div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 16 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;set timelines for implementing the Research Plan and measurables for the conduct and progress of the Research Plan;</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;oversee the conduct and progress of the Research Plan and serve as a forum for discussion of results generated under the Research Plan;</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(d)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;serve as a forum for discussion of Development activities with respect to Compounds and Licensed Products, including results arising from such activities;</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(e)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;establish secure access methods (such as secure databases) for the exchange of Know-How and other information as contemplated under this Agreement;</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(f)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;monitor and implement the technology transfer to Ionis pursuant to <u>Section 4.7</u>; and</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(g)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;perform such other functions as are set forth herein or as the Parties may mutually agree in writing, except where in conflict with any provision of this Agreement.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><br>
    <div style="font-weight: bold; text-indent: 36pt;">3.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; General Provisions Applicable to the JSC<font style="font-weight: normal;">.</font></div>
    <div>&#160;</div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">3.2.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Meetings and Minutes</font>.&#160; The JSC shall meet [***], or at such frequency as otherwise agreed to by the
    Parties, either in person or by tele-/videoconference with the venue of the in-person meetings alternating between locations designated by BicycleTx and locations designated by Ionis.&#160; The Alliance Manager shall be permitted to attend the JSC
    meetings.&#160; The chairperson of the JSC shall be responsible for calling meetings on no less than [***] notice.&#160; Each Party shall make all proposals for agenda items and shall provide all appropriate information with respect to such proposed items at
    least [***] in advance of the applicable meeting; provided that under exigent circumstances requiring input by the JSC, a Party may provide its agenda items to the other Party within a shorter period of time in advance of the meeting, or may propose
    that there not be a specific agenda for a particular meeting, so long as the other Party consents to such later addition of such agenda items or the absence of a specific agenda for such meeting.&#160; The chairpersons of the JSC (or their designee) shall
    prepare and circulate minutes of each meeting within [***] after the meeting for the Parties&#8217; review and approval.&#160; The Parties shall agree on the minutes of each meeting promptly, but in no event later than within [***] following circulation of the
    draft minutes.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">3.2.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Procedural Rules</font>.&#160; The JSC shall have the right to adopt such standing rules as necessary for its work, so
    long as such rules are not inconsistent with this Agreement.&#160; A quorum of the JSC shall exist whenever there is present at a meeting at least [***] appointed by each Party.&#160; Representation by proxy shall be allowed.&#160; The JSC shall take action by
    consensus of the representatives present at a meeting at which a quorum exists, with each Party having a single vote irrespective of the number of representatives of such Party in attendance, or by a written resolution signed by at least [***]
    appointed by each Party.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">3.2.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Non-Member Attendance</font>.&#160; Each Party may from time to time invite a reasonable number of participants, in
    addition to its representatives, to attend JSC meetings in a non-voting capacity; provided that if either Party intends to have any Third Party (including any consultant) attend such a meeting, such Party shall provide reasonable prior written notice
    to the other Party and obtain the other Party&#8217;s approval for such Third Party to attend such meeting, which approval shall not be unreasonably withheld, conditioned, or delayed.&#160; Such Party shall ensure that such Third Party is bound by written
    confidentiality and non-use obligations consistent with the terms of <u>ARTICLE 8</u>.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 17 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Decisions</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">3.3.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Decision Making Authority. </font>The JSC shall decide matters within its responsibilities pursuant to <u>Section

      3.1.2</u>.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">3.3.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Consensus; Good Faith. </font>The members of the JSC shall in good faith cooperate with one another and shall
    endeavor to seek agreement with respect to issues to be decided by the JSC.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">3.3.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Final Decision Right; Dispute Resolution</font>.&#160; If the JSC cannot, or does not, reach consensus on an issue,
    then (a) BicycleTx shall have final say on [***]; (b) subject to <u>Section 3.3.3(c)</u>, Ionis shall have final say on [***<u>]</u>; and (c) neither Party shall have final say on [***].&#160; Notwithstanding the foregoing, neither Party shall use its
    final decision-making authority to (i) impose any requirement on the other Party to undertake obligations beyond those for which it is responsible or to forgo any of its rights under this Agreement, (ii) require the other Party to violate any
    Applicable Law, ethical requirement, or any agreement it may have with any Third Party, or (iii) amend the terms and conditions of this Agreement.&#160; Disputes arising between the Parties in connection with or relating to this Agreement or any document or
    instrument delivered in connection herewith, and that are outside of the decision-making authority of the JSC, shall be finally resolved pursuant to <u>Section 12.2</u>.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Limitations on Authority</font>.&#160; Each Party shall retain the rights, powers, and discretion granted to it under
    this Agreement and no such rights, powers, or discretion shall be delegated to or vested in the JSC unless such delegation or vesting of rights is expressly provided for in this Agreement or the Parties expressly so agree in writing.&#160; The JSC shall not
    have the power to amend, modify, or waive compliance with this Agreement, which may only be amended or modified as provided in <u>Section 12.3</u> or compliance with which may only be waived as provided in <u>Section 12.5</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Alliance Manager</font>.&#160; Each Party shall appoint a person who shall oversee contact between the Parties for all
    matters between meetings of the JSC and shall have such other responsibilities as the Parties may agree in writing after the Effective Date (each, an &#8220;<font style="font-weight: bold;">Alliance Manager</font>&#8221;).&#160; If not already a member of the JSC, each
    Alliance Manager shall be permitted to attend JSC meetings as appropriate as a non-voting participant.&#160; Each Party may replace its Alliance Manager at any time by notice in writing to the other Party.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Discontinuation of the JSC</font>.&#160; The activities to be performed by the JSC shall solely relate to governance
    under this Agreement and are not intended to be or involve the delivery of services.&#160; Upon the date of First Commercial Sale of a Licensed Product in the Field in the Territory, or such earlier date agreed by the Parties in writing, the JSC shall have
    no further responsibilities or authority under this Agreement and, unless otherwise agreed by the Parties in writing, will be considered fully dissolved by the Parties.&#160; Thereafter, each Party shall designate, to the extent necessary, a contact person
    for the exchange of information under this Agreement or such exchange of information shall be made through the Alliance Managers, and decisions of the JSC, if any, shall be decisions as between the Parties, subject to the other terms and conditions of
    this Agreement.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Expenses</font>.&#160; Each Party shall be responsible for all travel and related costs and expenses of its Alliance
    Manager and of its members and other representatives to attend meetings of, and otherwise participate on, the JSC.</div>
  <div>&#160;</div>
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  </div>
  <div style="text-align: center; font-weight: bold;">ARTICLE 4</div>
  <div style="text-align: center; font-weight: bold;">RESEARCH AND DEVELOPMENT</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <br>
  <div style="text-align: justify; font-size: 12pt; text-indent: 36pt;"><font style="font-size: 10pt; font-weight: bold;">4.1</font><font style="font-size: 10pt;"><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Collaboration Overview</font>&#160; Subject to the terms
      and conditions of this Agreement, the Parties shall collaborate in connection with the performance of activities under the Research Plan.&#160; Following the completion of the Research Plan, subject to <u>Section 4.5.4</u>, Ionis shall have the sole and
      exclusive right and responsibility, at its own expense, for the Development of the Compounds and Licensed Products in the Territory</font></div>
  <div style="text-align: justify; font-size: 12pt;"> <font style="font-size: 10pt;"><br>
    </font> </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Research Plan</font>.<font style="font-weight: bold;">&#160; </font>BicycleTx and Ionis will conduct certain activities
    to optimize TfR1 Bicycles for use in Compounds, and such other research and discovery activities relating to TfR1 Bicycles as the Parties may agree through the JSC from time to time as reflected by the written minutes of the JSC (the &#8220;<font style="font-weight: bold;">Research Activities</font>&#8221;), which activities will be set forth in a mutually agreed research plan (the &#8220;<font style="font-weight: bold;">Research Plan</font>&#8221;).&#160; The Parties will work together during the [***] following
    the Effective Date to prepare and finalize the Research Plan.&#160; The Research Plan will include [***], which period may be extended upon mutual agreement of the Parties, the cost of which will be borne by BicycleTx.&#160; With respect to the Research
    Activities:</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.2.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;BicycleTx will conduct the Research Activities at no additional cost to Ionis as set forth in the Research Plan including by way of example and
    without limitation, X-ray crystallography.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.2.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Any work by BicycleTx requested by Ionis over and above the [***] annually will be discussed in good faith by the parties with a view to agreeing
    upon an allocation of costs to the applicable activities.&#160; In the event that internal BicycleTx resources are required, the Parties will agree on a commercially reasonable rate payable to BicycleTx.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.2.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;BicycleTx may utilize a contract research organization or other subcontractor (&#8220;<font style="font-weight: bold;">CRO</font>&#8221;) to conduct such
    activities under the Research Plan, provided that the Parties shall discuss and agree upon the scope of such CRO activities at the JSC and Ionis shall be responsible for the out of pocket costs incurred in connection with such CRO activities, on a
    pass-through basis without mark-up.&#160; Subject to <u>Section 3.3</u>, the Parties may amend the Research Plan upon the JSC&#8217;s written agreement.&#160; If the Parties (via the JSC) amend the Research Plan to include additional Research or Development work to
    be conducted by BicycleTx in respect of the TfR1 Bicycles or any Compounds, the Parties will negotiate in good faith to agree upon a commercially reasonable FTE rate payable to BicycleTx for the conduct of such additional activities.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.2.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Notwithstanding the extent of what is set forth in the Research Plan at any given time, all Research Activities that the Parties agree to conduct
    under this Agreement that are reflected in the written minutes of the JSC will be deemed to have been conducted under the Research Plan (whether or not specifically set forth therein).</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.3&#160;&#160;&#160;&#160;&#160;&#160;&#160; Research Activities</font>.&#160; BicycleTx shall carry out the Research Activities assigned to it in the Research Plan in good scientific manner, in accordance
    with this Agreement, and in compliance with all Applicable Law.&#160; Through the JSC, Ionis shall provide reasonable assistance requested by BicycleTx in connection with BicycleTx&#8217;s performance of the Research Activities.&#160; Following the completion of the
    Research Activities, BicycleTx shall deliver to Ionis, through the JSC, the results and data arising from such Research Activities and set forth to be delivered to the JSC in the Research Plan.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Development of Licensed Products</font>.&#160; Following completion of the Research Plan, Ionis shall have the sole right
    and responsibility to Develop and Manufacture, including seeking Regulatory Approvals for, Compounds and Licensed Products in the Field in the Territory, in each case at Ionis&#8217; sole expense.<font style="font-weight: bold;">&#160; </font>If BicycleTx
    terminates Oligo Exclusivity in accordance with <u>Section 4.5.4</u>, such rights and responsibilities shall be limited to Compounds and Licensed Products directed to Collaboration Targets.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 19 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Diligence</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.5.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">General</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;BicycleTx shall use Commercially Reasonable Efforts to perform the Research Activities assigned to it under the Research Plan.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;With respect to [***], Ionis shall use Commercially Reasonable Efforts to Develop and obtain Regulatory Approval for a Licensed Product directed to such Target in at least [***] for use
    in [***].&#160; Ionis shall have the right to satisfy its diligence obligations under this <u>Section 4.5</u> through its Affiliates and Sublicensees.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.5.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Diligence Milestones</font>.&#160; Without limiting the generality of the foregoing <u>Section 4.5.1(b)</u>, and
    subject to <u>Section 4.5.3</u>, Ionis shall:</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***];</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***];</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***]; and</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(d)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***].</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;">Notwithstanding anything to the contrary herein, [***<u>]</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.5.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Diligence Milestone Extensions</font>.&#160; The deadlines set forth in <u>Section 4.5.2</u> may be extended as
    follows:</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; to the extent of [***]; or</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; on a one-time basis [***] the following subsections ((i) &#8211; (iv)) by a period of [***] upon payment to BicycleTx of a non-refundable, non-creditable payment of [***] per subsection (the &#8220;<font style="font-weight: bold;">Diligence Extension Fee</font>&#8221;):</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 153pt;">(i)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***];</div>
  <div style="text-indent: 153pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 153pt;">(ii)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***];</div>
  <div style="text-indent: 153pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 153pt;">(iii)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***<u>]</u>; and</div>
  <div style="text-indent: 153pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 153pt;">(iv)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;[***].</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Ionis will have the right to extend any deadline set forth in <u>Section 4.5.2</u> pursuant to <u>Section 4.5.3(a)</u> or <u>4.5.3(b)</u> by (i) providing BicycleTx with a written
    notice therefor prior to the date on which such milestone is required to be performed (an &#8220;<font style="font-weight: bold;">Extension Notice</font>&#8221;) and (ii) if such extension is pursuant to (A) <u>Section 4.5.3(a)</u>, [***], or (B) <u>Section
      4.5.3(b)</u>, paying to BicycleTx the Diligence Extension Fee, in each case ((A) and (B)) concurrently with the delivery of such notice provided that any further extensions pursuant to <u>Section 4.5.3(a)</u> will require the Parties to [***].&#160; For
    clarity, the maximum amount payable to BicycleTx pursuant to <u>Section 4.5.3(b)</u> is [***] (i.e. the milestones could be extended pursuant to the application of all of subclauses (i), (ii) and (iv), or by the application of all of subclauses (ii),
    (iii) and (iv)).&#160; For example, [***].</div>
  <div>&#160;</div>
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.5.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Failure to Achieve Milestones; Termination of Oligo Exclusivity</font>. </div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;If Ionis fails to meet one or more of the diligence milestones set forth in <u>Section 4.5.2</u> (as the dates for achievement of such diligence milestones may be extended pursuant to <u>Section






    </u> <u>4.5.3)</u>, and does not elect to extend such diligence milestones as provided under <u>Section 4.5.3</u> (or no further extension is available to Ionis), then subject to <u>Section 4.5.4(b)</u>, BicycleTx shall have the right, by written
    notice to Ionis at any time after such failure, to terminate the Oligo Exclusivity effective as of the date of such written notice.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;If, before BicycleTx provides written notice to Ionis terminating the Oligo Exclusivity under <u>Section 4.5.4(a)</u>, Ionis [***<u>]</u>, then BicycleTx shall [***].</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Following the termination of Oligo Exclusivity as provided in <u>Section 4.5.4(a)</u>, (1) BicycleTx shall continue to be subject to its obligations under <u>Section 2.7</u>, and (2)
    Ionis&#8217; license under <u>Section 2.1.2</u> shall terminate but Ionis&#8217; licenses under <u>Sections 2.1.1</u> and <u>2.1.3</u> shall continue without any further action by either Party.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Updates</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.6.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">BicycleTx Updates</font>.&#160; At each regularly scheduled JSC meeting during the performance of the Research Plan,
    BicycleTx shall provide the JSC with a report detailing its activities under the Research Plan, to the extent then-ongoing, and the results of such activities.&#160; The Parties shall discuss the status, progress, and results of such activities at such JSC
    meetings.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.6.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Ionis Updates</font>.&#160; For each Target for which Ionis reaches Target Sanction, Ionis shall notify BicycleTx or
    the Gatekeeper of the Target within [***] of the Target Sanction decision by Ionis&#8217; RMC.&#160; For each Target for which Ionis is Developing a Licensed Product, on an annual basis during the Term until the grant of Regulatory Approval for a Licensed Product
    directed to such Target in each of [***], Ionis will provide to BicycleTx annual reports, within [***] after the start of each Calendar Year, summarizing, with respect to activities by Ionis, its Affiliates and Sublicensees: (a) the significant
    Development activities undertaken and the results achieved with respect to the applicable Licensed Products during the preceding 12-month period and (b) the significant Development activities planned for the applicable Licensed Products during the
    following 12-month period, provided however that such reports need not be specifically generated in compliance with this section and Ionis may rely on existing reports and internal communications to its Research Management Committee or other executive
    management, as long as such reports reasonably provide the information set forth the foregoing (a) and (b).&#160; Following the delivery of each report, Ionis will make appropriate personnel reasonably available to BicycleTx during business hours and on
    reasonable advanced notice to answer questions regarding the information contained in such report in order for BicycleTx to obtain a reasonable understanding regarding the Development status of the applicable Licensed Products.</div>
  <div>&#160;</div>
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  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Technology Transfer</font>.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.7.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Know-How</font>.&#160; As soon as reasonably practicable following the completion of the Research Plan (and in any
    event not more than [***] after), BicycleTx shall, and shall cause its Affiliates to, [***], disclose and make available to Ionis (which obligation may include granting personnel designated by Ionis controlled access to an electronic data room), in
    such form as maintained by BicycleTx in the ordinary course of business, a copy of the BicycleTx Know-How and jointly owned Know-How (to the extent such jointly owned Know-How is in BicycleTx&#8217;s possession).&#160; The Parties shall reasonably cooperate to
    provide a smooth and prompt provision of all such Know-How.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.7.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Technical Assistance</font>.&#160; BicycleTx shall reasonably assist Ionis and its designee(s) in the use and
    understanding of the BicycleTx Know-How and jointly owned Know-How provided pursuant to <u>Section 4.7.1</u> and with respect to such BicycleTx Know-How and jointly owned Know-How, shall provide reasonable technical assistance and make its technical
    personnel reasonably available to Ionis as necessary for Ionis to Exploit the Compounds and Licensed Products, provided that such technical assistance at BicycleTx&#8217;s cost shall not be required to exceed, in the aggregate, a total of [***].&#160; For any
    assistance requested by Ionis and provided by BicycleTx in excess of [***], Ionis shall reimburse BicycleTx for all reasonable internal costs, at an agreed FTE rate, and out-of-pocket costs incurred by BicycleTx in providing such additional assistance.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.8</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Target Exclusivity; Collaboration Targets</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.8.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Following termination of Oligo Exclusivity by BicycleTx pursuant to <u>Section 4.5.4</u>, Ionis shall retain exclusivity with respect to TfR1
    Bicycles for the delivery of ASOs directed to each Collaboration Target (such residual exclusivity, &#8220;<font style="font-weight: bold;">Target Exclusivity</font>&#8221;).&#160; A &#8220;<font style="font-weight: bold;">Collaboration Target</font>&#8221; is each Target that is
    (a) an Existing Collaboration Target under <u>Section 4.8.2</u>, or (b) designated by Ionis as a Collaboration Target in accordance with <u>Section 4.8.4</u>, and in each case of (a) and (b), is not a Terminated Target.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.8.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Within [***] following termination of Oligo Exclusivity (such period, the &#8220;<font style="font-weight: bold;">Ionis Initial Target Designation
      Period</font>&#8221;), Ionis shall provide to BicycleTx and the Gatekeeper written notice specifying the Targets (that are not BicycleTx Excluded Targets) with respect to which Ionis was conducting (a) Research that has [***], or (b) [***] (each, subject
    to [***], an &#8220;<font style="font-weight: bold;">Existing Collaboration Target</font>&#8221;).&#160; The Gatekeeper shall update the list of Collaboration Targets by the end of the Ionis Initial Target Designation Period.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.8.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;During the [***] period following the expiration of the Ionis Initial Target Designation Period (the &#8220;<font style="font-weight: bold;">BicycleTx
      Initial Target Designation Period</font>&#8221;), BicycleTx may make a BicycleTx Target Request under <u>Section 4.9</u>, and may place on the Gatekeeper List (i.e. in addition to any BicycleTx Excluded Targets already on the Gatekeeper List) any Target
    (a) for which BicycleTx commences, during the BicycleTx Initial Target Designation Period, an Internal Development Program (meeting the criteria set forth in <u>Section 1.79(a)</u> and <u>(b)</u>), or (b) that is the subject of [***].</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.8.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;At any time after expiration of the BicycleTx Initial Target Designation Period, Ionis may nominate as Collaboration Targets (a) up to [***]
    additional Targets (in addition to any Targets already designated by Ionis under <u>Section 4.8.2</u>) for which Ionis has [***], (in each case of (i) and (ii) in accordance with the terms of this Agreement and without, for clarity, any requirement
    that [***]) (each, an &#8220;<font style="font-weight: bold;">Ionis Research Stage Target</font>&#8221;), and/or (b) any Target [***] for which Ionis (or any Third Party to whom Ionis has granted rights in such Target) [***], in each case of (a) and/or (b) by
    following the procedure set forth in <u>Section 4.8.5</u>.&#160; For clarity, there may be no more than [***] Ionis Research Stage Targets nominated or placed on the Gatekeeper List at any given time, provided that upon Ionis designating a Development
    Candidate directed to an Ionis Research Stage Target, Ionis may notify the Gatekeeper, and such Target shall thereafter remain a Collaboration Target, but shall no longer be an Ionis Research Stage Target, and Ionis may nominate an additional Ionis
    Research Stage Target to the Gatekeeper List, subject to (A) any such Target being Available, (B) pre-payment of the IND Acceptance Fee, and (C) the foregoing limit of [***] Ionis Research Stage Targets in total at any time.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 22 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.8.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;To nominate an additional Target as a Collaboration Target under <u>Section 4.8.4</u> subject to Target Exclusivity, Ionis shall provide the
    Gatekeeper with a confidential written description of the applicable Target (the &#8220;<font style="font-weight: bold;">Nominated Target</font>&#8221;), including, to the extent available, [***] for such Target (the &#8220;<font style="font-weight: bold;">Target
      Nomination Notice</font>&#8221;).&#160; Within [***] following the Gatekeeper&#8217;s receipt of the Target Nomination Notice with respect to a Nominated Target, the Gatekeeper shall verify whether such Nominated Target is an Available Target and notify Ionis in
    writing (&#8220;<font style="font-weight: bold;">Target Availability Notice</font>&#8221;).&#160; If the Nominated Target is an Available Target on the date that the Gatekeeper receives the applicable Target Nomination Notice, then such Nominated Target shall be
    designated as a Collaboration Target and shall be subject to Target Exclusivity as of the date of the Gatekeeper&#8217;s receipt of the Target Nomination Notice for such Target (the &#8220;<font style="font-weight: bold;">Target Acceptance Date</font>&#8221;) so long as
    Ionis pre-pays the IND Acceptance Fee for such Target within [***] of receipt of an invoice therefor.&#160; Effective as of the Target Acceptance Date for a Collaboration Target nominated pursuant to this <u>Section 4.8.5</u>, the Parties will have all
    rights and obligations hereunder in connection with such Collaboration Target (including each Party&#8217;s respective rights and obligations under <u>Sections 2.1</u>, 2.5, and 2.7).&#160; For clarity, if Ionis elects, at its discretion, to provide a Target
    Nomination Notice directly to BicycleTx, rather than to the Gatekeeper, then this <u>Section 4.8.5</u> shall be deemed to refer to provision of such Target Nomination Notice to BicycleTx, <font style="font-style: italic;">mutatis mutandis</font>.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.8.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#160; At any time after the expiration of the BicycleTx Initial Target Designation Period, BicycleTx may place on the Gatekeeper List:</div>
  <div>&#160;</div>
  <div style="text-indent: 126pt;">
    <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;up to [***] additional Targets (in addition to the then-current BicycleTx Excluded Targets and any Targets already designated by BicycleTx during the BicycleTx Initial Target
      Designation Period under <u>Section 4.8.3</u>) for which BicycleTx [***] (each, a &#8220;<font style="font-weight: bold;">BicycleTx Research Stage Target</font>&#8221;);</div>
    <div style="text-indent: 117pt;">&#160; <br>
    </div>
  </div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;any Target (without any cap on number) [***]; and/or</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;any Target that is the subject of [***].</div>
  <div>&#160;</div>
  <div style="text-align: justify;">in each case of (a) through (c), subject to BicycleTx first confirming with the Gatekeeper that any such Target is Available in accordance with <u>Section 4.9</u>.&#160; For clarity, (A) any Target placed on the Gatekeeper
    list pursuant to <u>Section 4.8.6(c)</u> shall not be counted as a BicycleTx Research Stage Target or against the associated limit of [***], regardless of the stage of Research or Development at which rights in such Target are granted to a Third
    Party, and (B) there may be no more than [***] BicycleTx Research Stage Targets nominated or placed on the Gatekeeper List at any given time, provided that upon BicycleTx designating a Development Candidate directed to an BicycleTx Research Stage
    Target, BicycleTx may notify the Gatekeeper, and such Target shall remain on the Gatekeeper List but shall no longer be an BicycleTx Research Stage Target, and BicycleTx may nominate an additional BicycleTx Research Stage Target to the Gatekeeper List,
    subject to (1) any such Target being Available, and (2) the foregoing limit of [***] BicycleTx Research Stage Targets in total at any time.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 23 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.8.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Expanded Role of Gatekeeper</font>.&#160; Promptly following the termination of Oligo Exclusivity, BicycleTx shall
    expand the engagement of the Gatekeeper for the purposes of performing the applicable functions set forth in this <u>Section 4.8</u>, to include (in addition to the duties set forth in <u>Section 2.2.1</u>): (a) maintaining a list of Targets that are
    not Available Targets, (b) issuing the Target Availability Notice, (c) maintaining the list of Collaboration Targets, and (d) performing the functions with respect to Bicycle that are set forth in <u>Section 4.9</u>.&#160; [***].&#160; Such engagement shall be
    on terms consistent with this Agreement and mutually agreeable to the Parties, including provisions relating to confidentiality.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.8.8</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Unavailable Targets</font>.&#160; Following the termination of Oligo Exclusivity, if applicable, BicycleTx shall
    notify the Gatekeeper of any Targets that are not Available Targets (i.e. those falling within <u>Section 4.8.6</u>) promptly, but in no event later than [***] after the Gatekeeper notifies BicycleTx that it has received any Target Nomination Notice,
    to enable the Gatekeeper to comply with its obligations to Ionis under <u>Section 4.8</u>.&#160; Upon receipt of such notification, the Gatekeeper shall update the Gatekeeper List accordingly.&#160; If any Nominated Target that was not an Available Target at
    the time of the Target Nomination Notice later becomes an Available Target, the Gatekeeper shall notify Ionis of the Available Target within [***] of the Gatekeeper receiving notice that such Available Target is available and Ionis shall have sole
    discretion whether such Available Target becomes a Collaboration Target under this Agreement.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.9</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">BicycleTx Use of Gatekeeper to Clear </font><font style="font-weight: bold;">Targets</font>.&#160; Following the
    termination of Oligo Exclusivity, if applicable, BicycleTx shall notify the Gatekeeper of any Target(s) that BicycleTx wishes to place on the Gatekeeper List pursuant to <u>Section 4.8.3</u> or <u>Section 4.8.6</u> (each, a &#8220;<font style="font-weight: bold;">BicycleTx Target</font>&#8221;) to enable the Gatekeeper to determine whether such BicycleTx Targets are Collaboration Targets (and therefore not Available for BicycleTx).&#160; To screen a BicycleTx Target, BicycleTx shall provide the Gatekeeper with a
    confidential written description of the applicable Target including, to the extent available, [***] for such Target (&#8220;<font style="font-weight: bold;">BicycleTx Target Request</font>&#8221;).&#160; Within [***] following the Gatekeeper&#8217;s receipt of the BicycleTx
    Target Request with respect to a BicycleTx Target, the Gatekeeper shall verify if such BicycleTx Target is Available and notify BicycleTx in writing.&#160; </div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.10</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Subcontracting</font>.&#160; Each Party shall have the right to subcontract any of its Development activities to a Third
    Party; provided that (a) such Party remains responsible for the work allocated to, and payment to, such subcontractors to the same extent it would if it had done such work itself; (b) each subcontractor undertakes in writing obligations of
    confidentiality and non-use regarding Confidential Information that are substantially the same as those undertaken by the Parties pursuant to <u>ARTICLE 8</u>; and (c) each subcontractor agrees in writing to assign all intellectual property developed
    in the course of performing any such work to such Party in accordance with <u>Section 7.1.3(a)</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;"></font>
    <div style="text-indent: 36pt; font-weight: bold;">4.11&#160;&#160;&#160;&#160;&#160;&#160;&#160; Regulatory Matters<font style="font-weight: normal;">.</font></div>
    <div>&#160;</div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.11.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Regulatory Activities</font>.&#160; As between the Parties, Ionis, at its sole expense, shall have the sole right to
    prepare, obtain, and maintain the Drug Approval Applications (including the setting of the overall regulatory strategy therefor), Regulatory Approvals, and other Regulatory Documentation, and to conduct communications with Regulatory Authorities, for
    Compounds and Licensed Products in the Territory, provided that following the termination of Oligo Exclusivity (if applicable), Ionis&#8217; right to conduct the foregoing regulatory activities shall apply only to Licensed Products directed to Collaboration
    Targets (and for clarity, such right with respect to Collaboration Targets shall be a sole right).&#160; Upon Ionis&#8217; request [***], BicycleTx shall provide Ionis with reasonable assistance in obtaining Regulatory Approvals for the Licensed Products,
    including providing necessary documents or other materials required by Applicable Law to obtain such Regulatory Approvals, provided that such assistance shall be limited to assistance that relates directly to the work BicycleTx conducted pursuant to
    the Research Plan, and provided further that nothing in this <u>Section 4.11.1</u> shall obligate BicycleTx to generate any additional data or other Know-How.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 24 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">4.11.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Recalls</font>.&#160; Ionis shall notify BicycleTx promptly following its determination that any event, incident, or
    circumstance has occurred that may result in the need for a recall, market suspension, or market withdrawal of a Licensed Product in the Territory, and shall include in such notice the reasoning behind such determination and any supporting facts.&#160;
    Ionis (or its Sublicensee) shall have the right to make the final determination whether to voluntarily implement any such recall, market suspension, or market withdrawal in the Territory.&#160; If a recall, market suspension, or market withdrawal is
    mandated by a Regulatory Authority in the Territory, Ionis (or its Sublicensee) shall initiate such a recall, market suspension, or market withdrawal in compliance with Applicable Law.&#160; For all recalls, market suspensions, or market withdrawals
    undertaken pursuant to this <u>Section 4.11.2</u>, Ionis (or its Affiliate or Sublicensee) shall be solely responsible for the execution thereof, and BicycleTx shall reasonably cooperate in all such recall efforts, [***].</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.12</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Records</font>.&#160; Each of BicycleTx and Ionis shall, and shall ensure that its contractors, maintain records in
    sufficient detail and in good scientific manner appropriate for patent and regulatory purposes, and in compliance with Applicable Law, which shall be complete and accurate and shall properly reflect all work done and results achieved in the performance
    of its Research Activities and Development activities hereunder, which shall record only such activities and shall not include or be commingled with records of activities outside the scope of this Agreement.&#160; Such records shall be retained by BicycleTx
    or Ionis, as the case may be, for at least [***] after the termination of this Agreement, or for such longer period as may be required by Applicable Law.</div>
  <div>&#160;</div>
  <div style="text-align: center; font-weight: bold;">ARTICLE 5</div>
  <div style="text-align: center; font-weight: bold;">COMMERCIALIZATION</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">5.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">In General</font>.&#160; Ionis (itself or through its Affiliates or Sublicensees) shall have the sole right and
    responsibility to Commercialize Licensed Products in the Field in the Territory, at its own expense, provided that following the termination of Oligo Exclusivity (if applicable), Ionis&#8217; right to conduct the foregoing Commercialization activities shall
    apply only to Licensed Products directed to Collaboration Targets (and for clarity, such right with respect to Collaboration Targets shall be a sole right).</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">5.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Commercialization Diligence</font>.&#160; For each Target for which Ionis has paid (or, for up to four Targets, as
    applicable, applied a credit toward) the IND Acceptance Fee (including, for clarity, any Collaboration Target), Ionis shall use Commercially Reasonable Efforts to Commercialize at least [***] following receipt of Regulatory Approval therefor in such
    Major Market.&#160; With respect to any such Target, if Ionis decides to discontinue the Development or Commercialization of a Compound and Licensed Product in favor of another Compound and Licensed Product directed to such Target, its obligations under
    this <u>Section 5.2</u> shall cease with respect to such initial Compound and Licensed Product in favor of such other Compound and Licensed Product directed to such Target.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">5.3</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Commercial Updates</font>.&#160; Ionis shall update BicycleTx on [***] basis regarding its significant Commercialization
    activities with respect to Licensed Products corresponding to each Target for which Ionis has paid (or, for [***], as applicable, applied a credit toward) the IND Acceptance Fee in the Territory.&#160; Each such update shall summarize Ionis and its
    Affiliates&#8217; and Sublicensees&#8217; significant Commercialization activities with respect to each such Licensed&#160; Product and Target in the Territory and shall contain information at a level of detail reasonably required by BicycleTx to determine Ionis&#8217;
    compliance with its diligence obligations set forth herein, provided however that such updates and reports need not be specifically generated in compliance with this section and Ionis may rely on existing reports and internal communications to its
    Research Management Committee or other executive management, as long as such reports appropriately encompass the information required under this <u>Section 5.3</u>.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 25 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;"></font>
    <div style="text-indent: 36pt;"><font style="font-weight: bold;">5.4</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Commercial Supply of Compounds and Licensed Products</font>&#160; As between the Parties, Ionis shall have the sole right and
      responsibility, at its expense, to Manufacture (or have Manufactured) and supply Compounds and Licensed Products for commercial sale in the Territory by Ionis and its Affiliates and Sublicensees.&#160; If BicycleTx terminates Oligo Exclusivity in
      accordance with <u>Section 4.5.4</u>, such rights and responsibilities shall be limited to Compounds and Licensed Products directed to the Collaboration Targets.</div>
    <div>&#160;</div>
  </div>
  <div style="text-align: center; font-weight: bold;">ARTICLE 6</div>
  <div style="text-align: center; font-weight: bold;">PAYMENTS AND RECORDS</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">
    <div style="text-indent: 36pt;"><font style="font-weight: bold;">6.1</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Upfront Payment<font style="font-weight: normal;">.</font></font>&#160; Within [***] after the Effective Date, Ionis shall pay to BicycleTx
      a one-time, non-refundable, non-creditable (except as set forth in <u>Section 6.3</u>) payment in the amount of Thirty-One Million Dollars ($31,000,000).&#160; The Parties acknowledge and agree that the Three Million Dollar ($3,000,000) Option Fee (as
      defined in the Option Agreement) paid to BicycleTx by Ionis pursuant to <u>Section 4.1</u> of the Option Agreement has been fully credited against the total agreed upfront payment under this Agreement of Thirty-Four Million Dollars ($34,000,000).</div>
    <div>&#160;</div>
  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Equity Consideration</font>.&#160; In partial consideration for the rights granted by BicycleTx under this Agreement,
    Bicycle Therapeutics plc and Ionis will enter into a Stock Purchase Agreement in the form set forth as <u>Exhibit 6.2</u>, pursuant to which Bicycle Therapeutics plc will issue to Ionis a number of Ordinary Shares equal to Eleven Million Dollars
    ($11,000,000) divided by the Share Value in accordance with the terms set forth therein (as the terms Ordinary Shares and Share Value are defined in the Stock Purchase Agreement).</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">IND Acceptance Fee</font>.&#160; On a Target-by-Target basis, within [***] after IND Acceptance for the first Licensed
    Product directed to such Target being Developed by Ionis, its Affiliates or Sublicensees, Ionis shall pay to BicycleTx a one-time, non-refundable, non-creditable payment in the amount of [***] (the &#8220;<font style="font-weight: bold;">IND Acceptance Fee</font>&#8221;);

    provided, however, that Ionis will have a credit up to [***] (the &#8220;<font style="font-weight: bold;">IND Acceptance Credit</font>&#8221;), which shall be deemed included in (and pre-paid pursuant to) the upfront payment paid to BicycleTx under <u>Section 6.1</u>,
    and<u>&#160;</u>may be applied against the IND Acceptance Fee for the first Licensed Product directed to each of up to [***] Targets.&#160; For clarity, Ionis shall not be required to apply the IND Acceptance Credit against the first four Targets (and associated
    Licensed Products), and shall have sole discretion in determining, on a Licensed Product-by-Licensed Product basis, whether it wishes to pay the IND Acceptance Fee in cash, or apply a portion of the remaining IND Acceptance Credit against such Licensed
    Product, until the full amount of the IND Acceptance Credit has been exhausted.&#160; If Oligo Exclusivity expires, and Ionis has, at such time, not exhausted the IND Acceptance Credit, Ionis may apply any remaining amount against any prepayment of the IND
    Acceptance Fee for Targets that Ionis designates to be Collaboration Targets pursuant to <u>Section 4.8.2</u>.&#160; For clarity, if this Agreement is terminated prior to the exhaustion of the IND Acceptance Credit, BicycleTx will not be required to refund
    any unused portion of the IND Acceptance Credit to Ionis.</div>
  <div>&#160;</div>
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;"></font>
    <div style="text-indent: 36pt; font-weight: bold;">6.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Development and Regulatory Milestones</div>
    <div>&#160;</div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.4.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold; color: rgb(0, 0, 0);">Development and Regulatory </font><font style="font-weight: bold;">Milestone Payments</font>.&#160;

    In partial consideration of the rights granted by BicycleTx to Ionis under this Agreement and subject to the terms and conditions set forth in the remainder of this <u>Section 6.4</u>, on a Target-by-Target basis, Ionis shall pay to BicycleTx the
    non-refundable, non-creditable milestone payment set forth in the table below upon the first achievement of the corresponding milestone event by a Licensed Product directed to such Target by or on behalf of Ionis or its Affiliates or Sublicensees:</div>
  <div>&#160;</div>
  <div style="margin-left: 63pt;">
    <table cellspacing="0" cellpadding="0" border="0" align="" id="z85b7b79dc21a4ac4b16f85b3ba1f71df" style="border-collapse: collapse; width: 70%; color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-size: 10pt; text-align: left;">

        <tr>
          <td style="vertical-align: top; background-color: rgb(217, 217, 217); border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0);" colspan="2">
            <div style="text-align: center; font-weight: bold;">Milestone Event (payable for the first Licensed Product </div>
            <div style="text-align: center; font-weight: bold;">directed to a given Target)</div>
          </td>
          <td style="width: 13%; vertical-align: middle; background-color: rgb(217, 217, 217); border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0) rgb(0, 0, 0) rgb(0, 0, 0) rgb(0, 0, 0);">
            <div style="text-align: center; font-weight: bold; color: rgb(0, 0, 0);">Milestone Payment Amount</div>
          </td>
        </tr>
        <tr>
          <td style="width: 3%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>1.</div>
          </td>
          <td style="width: 54%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 13%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">[***]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 3%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>2.</div>
          </td>
          <td style="width: 54%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 13%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">[***]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 3%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>3.</div>
          </td>
          <td style="width: 54%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 13%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">[***]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 3%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>4.</div>
          </td>
          <td style="width: 54%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 13%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">[***]</div>
          </td>
        </tr>

    </table>
  </div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.4.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">One-Time Payment per Target; Deemed Achievement</font>.&#160; For clarity, the foregoing milestone payments shall be
    payable one-time only with respect to each Target, regardless of the number of Licensed Products directed to such Target to achieve such milestone event.&#160; For further clarity, milestone #1 shall be deemed achieved and payable, if not already achieved,
    upon achievement of any of milestones #2, #3, or #4 by a Licensed Product directed to the same Target.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.4.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Ultra-Rare Disease Product Delay in Payment</font>.&#160; Notwithstanding the foregoing, with respect to the
    achievement of any of the foregoing milestone events by an Ultra-Rare Disease Product, Ionis&#8217; payment to BicycleTx of the corresponding milestone payments will be deferred until the first to occur of [***].</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.4.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Notice and Payment</font>.&#160; Ionis shall notify BicycleTx within [***] after achieving any milestone event set
    forth in the table above.&#160; Except as otherwise provided in <u>Section 6.4.3</u> with respect to an Ultra-Rare Disease Product, Ionis shall pay to BicycleTx the applicable milestone payment within [***] after receipt of an invoice for the achievement
    of the applicable milestone event.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 27 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
      <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0px; height: 2px; color: rgb(0, 0, 0); background-color: rgb(0, 0, 0); clear: both;"></div>
  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Collaboration Milestones</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.5.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Collaboration Milestone Payments</font>.&#160; In partial consideration of the rights granted by BicycleTx to Ionis
    hereunder and subject to the terms and conditions set forth in the remainder of this <u>Section 6.5</u>, Ionis shall pay to BicycleTx the following one-time, non-refundable, non-creditable milestone payments set forth in the table below following the
    end of the Calendar Quarter in which the first achievement by or on behalf of Ionis, its Affiliates or Sublicensees of the corresponding milestone event occurred:</div>
  <div>&#160;</div>
  <div style="margin-left: 63pt;">
    <table cellspacing="0" cellpadding="0" border="0" id="ze6f3aa6bff0842a396b732f661538d24" style="border-collapse: collapse; width: 70%; color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-size: 10pt; text-align: left;">

        <tr>
          <td style="vertical-align: top; background-color: rgb(217, 217, 217); border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0);" colspan="2">
            <div style="text-align: center;"><font style="font-weight: bold;">[</font>***<font style="font-weight: bold;">]</font></div>
          </td>
          <td style="width: 15%; vertical-align: middle; background-color: rgb(217, 217, 217); border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0);">
            <div style="text-align: center; font-weight: bold;">Milestone Payment Amount</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>1.</div>
          </td>
          <td style="width: 50%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 15%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 5%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>2.</div>
          </td>
          <td style="width: 50%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div>[***]</div>
          </td>
          <td style="width: 15%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***]</div>
          </td>
        </tr>

    </table>
  </div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.5.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Notice and Payment</font>.&#160; Ionis shall notify BicycleTx within [***] following the end of the Calendar Quarter
    in which such milestone event in the table above was achieved.&#160; Ionis shall pay to BicycleTx the applicable milestone payment within [***] after receipt of an invoice for the achievement of the applicable milestone event.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Royalties</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.6.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Royalty Rates</font>.&#160; As further consideration for the rights granted to Ionis under this Agreement, subject to
    the remainder of this <u>Section 6.6</u>, during the Royalty Term, Ionis shall make quarterly, non-refundable (except as the result of an overpayment under <u>Section 6.11</u>), non-creditable royalty payments to BicycleTx on the annual Net Sales of
    each Licensed Product sold by or on behalf of Ionis, its Affiliates or Sublicensees in the Territory at the applicable rate set forth below:</div>
  <div>&#160;</div>
  <div style="margin-left: 63pt;">
    <table cellspacing="0" cellpadding="0" border="0" id="zb2427cf2b77d47038252c726a9ffd6be" style="border-collapse: collapse; width: 70%; color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-size: 10pt; text-align: left;">

        <tr>
          <td style="width: 50%; vertical-align: top; background-color: rgb(230, 230, 230); border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0);">
            <div style="text-align: justify; font-weight: bold;">Annual Net Sales in the Territory of a given Licensed Product </div>
            <div style="text-align: justify; font-weight: bold;">in a Calendar Year</div>
          </td>
          <td style="width: 20%; vertical-align: top; background-color: rgb(230, 230, 230); border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0);">
            <div style="text-align: center; font-weight: bold;">Royalty Rate</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: justify; margin-left: 12.6pt;">[***]</div>
          </td>
          <td style="width: 20%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: justify; margin-left: 12.6pt;">[***]</div>
          </td>
          <td style="width: 20%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;">[***]</div>
          </td>
        </tr>

    </table>
  </div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.6.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Royalty Term</font>.&#160; Royalties shall be paid on a Licensed Product-by-Licensed Product and country-by-country
    basis in the Territory from the First Commercial Sale of such Licensed Product in a country by or on behalf of Ionis, its Affiliates, or Sublicensees, until the expiration of the Royalty Term for such Licensed Product in such country.</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 28 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
      <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0px; height: 2px; color: rgb(0, 0, 0); background-color: rgb(0, 0, 0); clear: both;"></div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.6.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#160; <font style="font-weight: bold;">Permitted Reductions</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">&#160;(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;On a Licensed Product-by-Licensed Product basis, if [***] to the extent necessary such that [***] for such Licensed Product in such Calendar Quarter, after giving effect to [***];
    provided that during the [***] following the First Commercial Sale of such Licensed Product in [***] (each such period, a &#8220;<u>Royalty Floor Period</u>&#8221;) in no event will the foregoing operate to reduce the royalty paid to BicycleTx on the Net Sales of
    such Licensed Product in any [***] of the amount that BicycleTx otherwise would have received on the Net Sales of such Licensed Product in [***] had no such reduction occurred.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">&#160;(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;If following the Royalty Floor Period the amount of royalties paid to BicycleTx by Ionis is reduced as described in <u>Section 6.6.3(a)</u>, Ionis will also pay to BicycleTx [***] sale
    of the applicable Licensed Product following the Royalty Floor Period until [***] of the amount that BicycleTx [***] after the Royalty Floor Period <font style="font-style: italic;"><u>minus</u></font> (ii) the royalty payments received by BicycleTx
    for such Net Sales in such countries.&#160; [***].&#160; For instance, [***].&#160; At the end of the quarter, [***].</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">Notwithstanding the foregoing, Ionis will use commercially reasonable efforts to obtain a minimum of a [***] royalty from its Sublicensees so that no reduction to the royalty payable to BicycleTx
    pursuant to <u>Section 6.6.3(a)</u> is implemented.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">&#160;(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Except as set forth in the foregoing <u>Section 6.6.3(a)</u>, the royalties payable by Ionis to BicycleTx pursuant to <u>Section 6.6.1</u> shall [***].</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Royalty Payments and Reports</font>.&#160; Ionis shall calculate all amounts payable to BicycleTx pursuant to <u>Section

      6.6</u> at the end of each Calendar Quarter, which amounts shall be converted to Dollars, in accordance with <u>Section 6.8</u>.&#160; Ionis shall pay to BicycleTx the royalty amounts due with respect to a given Calendar Quarter within [***] after the
    end of each Calendar Quarter.&#160; Each payment of royalties due to BicycleTx shall be accompanied by a report setting forth the Net Sales of the Licensed Products by Ionis and its Affiliates and Sublicensees in the Territory in sufficient detail to permit
    confirmation of the accuracy of the royalty payment made, including [***].</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.8</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Mode of Payment</font>.&#160; All payments to BicycleTx under this Agreement shall be made by deposit of Dollars in the
    requisite amount to such bank account as BicycleTx may from time to time designate by written notice to Ionis.&#160; For the purpose of calculating any sums due under, or otherwise reimbursable pursuant to, this Agreement (including the calculation of Net
    Sales expressed in currencies other than Dollars), a Party shall convert any amount expressed in a foreign currency into Dollar equivalents using its, its Affiliate&#8217;s, or Sublicensee&#8217;s standard conversion methodology consistent with Accounting
    Standards.</div>
  <div style="text-indent: 36pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.9</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Taxes</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.9.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Taxes on Income</font>.&#160; Except as provided herein, each Party shall be solely responsible for the payment of all
    taxes imposed on its share of income arising directly or indirectly from the activities of the Parties under this Agreement.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.9.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Withholding Amounts</font>.&#160; If any sum due to be paid to BicycleTx under this Agreement is subject to any
    withholding or similar tax, the Parties shall use their commercially reasonable efforts to do all such acts and to sign all such documents as will enable them to take advantage of any applicable double taxation agreement or treaty.&#160; If there is no
    applicable double taxation agreement or treaty, or if an applicable double taxation agreement or treaty reduces but does not eliminate such withholding or similar tax, Ionis shall remit such withholding or similar tax to the appropriate government
    authority and any tax paid or required to be withheld by Ionis for the benefit of BicycleTx on account of any payments to BicycleTx under this Agreement will be deducted from the amount of royalties or other payments otherwise due.&#160; Ionis will secure
    and send to BicycleTx the best available proof of any such taxes so withheld and paid by Ionis for the benefit of BicycleTx.&#160; If withholding or similar taxes are paid to a government authority, each Party will provide the other such assistance as is
    reasonably required to obtain a refund of the withheld or similar taxes, or to obtain a credit with respect to such taxes paid.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 29 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
      <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0px; height: 2px; color: rgb(0, 0, 0); background-color: rgb(0, 0, 0); clear: both;"></div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.9.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Withholding Actions</font>. Notwithstanding the foregoing, the Parties acknowledge and agree that if Ionis (or
    its assignee pursuant to <u>Section 12.9</u>) is required by Applicable Law to withhold taxes in respect of any amount payable under this Agreement, and if such withholding obligation arises as a result any action by Ionis, including any assignment of
    this Agreement by Ionis as permitted under <u>Section 12.9</u>, a change in tax residency of Ionis, or payments arise or are deemed to arise through a branch of Ionis and such withholding taxes exceed the amount of withholding taxes that would have
    been applicable if such action had not occurred (each, an &#8220;<font style="font-weight: bold;">Ionis Withholding Tax Action</font>&#8221;), then, notwithstanding anything to the contrary herein, any such amount payable to BicycleTx under this Agreement shall be
    increased to take into account such increased withholding taxes as may be necessary so that, after making all required withholdings, BicycleTx (or its assignee pursuant to <u>Section 12.9</u>) receives an amount equal to the sum it would have received
    had no such Ionis Withholding Tax Action occurred.&#160; BicycleTx shall (a) use its commercially reasonable efforts to obtain an exemption of such withheld amounts to the extent practicable under Applicable Law and (b) cooperate with Ionis, at Ionis&#8217;
    reasonable expense, to obtain a reduction or refund of such withheld amounts.&#160; Notwithstanding the foregoing, the Parties acknowledge and agree that as of the date of this Agreement and under Applicable Laws, no withholding tax will be applicable to
    payments made to BicycleTx pursuant to this Agreement provided BicycleTx provides Ionis with a completed IRS form W-8BEN-E claiming the benefits of the United States &#8211; United Kingdom Income Tax Convention.&#160; The failure by BicycleTx to provide the tax
    forms described herein shall not relieve Ionis (or its assignee pursuant to <u>Section 12.9</u>) of its obligations pursuant to this <u>Section 6.9.3</u> unless Ionis has requested the applicable tax forms in writing sufficiently in advance of a
    payment so as to allow the BicycleTx a reasonable amount of time to obtain and provide the required forms. Notwithstanding the foregoing, if the increase in the withholding tax is directly a result of the transfer or assignment by BicycleTx of any
    intellectual property or a portion of the rights under this license Ionis will only be obligated to pay BicycleTx such gross up to the extent such transfer or assignment by BicycleTx did not cause such increase in the withholding tax.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">6.9.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Tax Credits</font>.&#160; During the Term, to the extent of, and if directly as a result of, an additional payment
    paid to BicycleTx pursuant to <u>Section 6.9.3</u>, BicycleTx is able to utilize a foreign tax credit or claim a deduction in the year of any such payment or any later year to actually reduce otherwise payable cash taxes, BicycleTx will refund to
    Ionis an amount equal to the actual cash tax savings obtained by BicycleTx directly related to the increased payment BicycleTx received pursuant to <u>Section 6.9.3</u> as reasonably determined in good faith by BicycleTx and supported by BicycleTx&#8217;s
    tax records.&#160; Except in the case of a dispute between the Parties under this <u>Section 6.9.4</u>, BicycleTx will not be required to provide Ionis with any tax returns or other confidential tax, accounting, or financial information.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.10</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Interest on Late Payments</font>.&#160; If any undisputed payment due to either Party under this Agreement is not paid
    when due, then such paying Party shall pay interest thereon (before and after any judgment, but excluding the period during which termination is tolled pursuant to <u>Section 11.3.1</u>) at [***] until [***].&#160; For the purposes of this Agreement,
    [***].</div>
  <div>&#160;</div>
  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 30 -</font></div>
    <div id="DSPFPageBreak" style="page-break-after: always;">
      <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0px; height: 2px; color: rgb(0, 0, 0); background-color: rgb(0, 0, 0); clear: both;"></div>
  </div>
  <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.11</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Audit</font>.&#160; Ionis shall keep, and shall require its Affiliates and Sublicensees to keep, complete and accurate
    records pertaining to the sale or other disposition of Licensed Products in sufficient detail to permit BicycleTx to confirm the accuracy of any milestone payment due under <u>Section 6.5</u> and royalty payment due under <u>Section 6.6</u>.&#160; Ionis
    will keep such books and records for [***] following the Calendar Year to which they pertain, or such longer period of time as may be required by Applicable Law.&#160; Upon reasonable prior notice and during regular business hours at such place or places
    where such records are customarily kept, such records may be inspected on BicycleTx&#8217;s behalf by an independent certified public accountant (the &#8220;<font style="font-weight: bold;">Auditor</font>&#8221;) selected by BicycleTx and reasonably acceptable to Ionis
    for the sole purpose of verifying for BicycleTx the accuracy of any payments made, or required to be made, to BicycleTx pursuant to this Agreement.&#160; Before beginning its audit, the Auditor shall execute an undertaking reasonably acceptable to each
    Party by which the Auditor agrees to keep confidential all information reviewed during the audit.&#160; Such audits shall be limited to [***] each Calendar Year and [***].&#160; Such auditor shall not disclose Ionis&#8217; Confidential Information to BicycleTx except
    to the extent necessary to confirm the accuracy of the financial reports and payments furnished by Ionis under this Agreement and the amount of any discrepancies.&#160; If the final result of the inspection reveals an undisputed underpayment, the underpaid
    amount shall be paid within [***] after the Auditor&#8217;s report.&#160; If the final result of the inspection reveals an undisputed overpayment, the overpaid amount shall be applied as a credit against future royalty payments by Ionis.&#160; BicycleTx shall bear the
    full cost of such audit unless such audit reveals an underpayment owed by Ionis of more than [***] from the reported amounts, in which case Ionis shall bear the cost of such audit.</div>
  <div>&#160;</div>
  <div style="text-align: center; font-weight: bold;">ARTICLE 7</div>
  <div style="text-align: center; font-weight: bold;">INTELLECTUAL PROPERTY</div>
  <div style="text-align: center; font-weight: bold;"> <br>
  </div>
  <div style="text-align: justify; font-size: 12pt; text-indent: 72pt;"><font style="font-size: 10pt; font-weight: bold;"></font>
    <div style="font-size: 10pt; font-weight: bold; text-indent: 36pt;">7.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Ownership of Intellectual Property<font style="font-weight: normal;">.</font></div>
    <div style="font-size: 10pt;">&#160;</div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.1.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">United States Law</font>.&#160; The determination of whether an Invention is discovered, made, conceived, or reduced
    to practice by a Party for the purpose of allocating proprietary rights (including Patent, copyright, or other intellectual property rights) therein, shall, for purposes of this Agreement, be made in accordance with Applicable Law in the United States.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.1.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Inventions</font>.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Sole Ownership</font>. As between the Parties, (i) BicycleTx, or an Affiliate designated by BicycleTx, shall own all right, title, and interest in and to
    any and all TfR1 BicycleTx Inventions and (ii) with respect to all other Inventions, each Party shall solely own any Inventions made solely by its and its Affiliates&#8217; employees, agents, or independent contractors.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Joint Ownership</font>.<font style="font-weight: bold;">&#160; </font>Subject to <u>Section 7.1.2(a)(i)</u>, the Parties shall jointly own any Inventions
    that are made jointly by employees, agents, or independent contractors of one Party and its Affiliates together with employees, agents, or independent contractors of the other Party and its Affiliates (&#8220;<font style="font-weight: bold;">Joint Inventions</font>&#8221;).&#160;





    Subject to the licenses granted under <u>Section 2.1</u> and <u>Section 2.3</u>, and BicycleTx&#8217;s Exclusivity Obligations hereunder, each Party shall have the right to Exploit the Joint Patents and Joint Inventions without a duty of seeking consent
    from or accounting to the other Party.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.1.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Assignment Obligation</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Each Party shall cause all Persons who perform activities for such Party under this Agreement to be under an obligation to assign (or, if such Party is unable to cause such Person to
    agree to such assignment obligation despite such Party&#8217;s using commercially reasonable efforts to negotiate such assignment obligation, provide a license under) their rights in any Inventions resulting therefrom to such Party, except where Applicable
    Law requires otherwise and except in the case of governmental, not-for-profit, and public institutions which have standard policies against such an assignment (in which case a suitable license, or right to obtain such a license, shall be obtained).</div>
  <div style="text-indent: 117pt;">&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 31 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Ionis will promptly disclose to BicycleTx in writing any TfR1 BicycleTx Inventions made (either solely or jointly) by Persons (other than BicycleTx) who perform activities for Ionis under
    this Agreement.&#160; Ionis, for itself and on behalf of its Affiliates, hereby assigns (and to the extent a present assignment of future rights is prohibited by Applicable Law, hereby agrees to and shall assign) to BicycleTx all of its right, title, and
    interest in and to any and all TfR1 BicycleTx Inventions (and any BicycleTx Patents relating thereto).&#160; Ionis will execute and record assignments and other necessary documents consistent with such ownership promptly upon BicycleTx&#8217;s request.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Each Party will promptly disclose to the other Party, in writing, the conception, discovery, development, generation, making or creation of any Joint Inventions made by Persons who
    perform activities for it under this Agreement.&#160; Each Party will execute and record assignments and other necessary documents consistent with such ownership promptly upon such other Party&#8217;s request.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;"></font>
    <div style="text-indent: 36pt; font-weight: bold;">7.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Patent Prosecution and Maintenance<font style="font-weight: normal;">.</font></div>
    <div>&#160;</div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.2.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">BicycleTx Patents other than BicycleTx Product Patents</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;BicycleTx shall have the sole right, but not the obligation, through the use of internal or outside counsel of its choice, to prepare, file, prosecute, and maintain (a) the BicycleTx
    Platform Patents, and (b) the BicycleTx Patents that do not Cover any Compound or Licensed Product worldwide, at BicycleTx&#8217;s expense.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;BicycleTx shall have the first right, but not the obligation, through the use of internal or outside counsel of its choice, to prepare, file, prosecute, and maintain any BicycleTx Patent
    that Cover any Compound or Licensed Product, but which Patent is not a BicycleTx Product Patent (each, a &#8220;<font style="font-weight: bold;">BicycleTx Relevant Patent</font>&#8221;) worldwide, at BicycleTx&#8217;s expense.&#160; With respect to any BicycleTx Relevant
    Patents that [***], BicycleTx shall keep Ionis reasonably informed of all material steps with regard to the preparation, filing, prosecution, and maintenance of any such claims of such BicycleTx Relevant Patents, including by providing Ionis with a
    copy of material communications to and from any patent authority in the Territory regarding such claims of such BicycleTx Relevant Patents, and by providing Ionis drafts of any material filings to be made to such patent authorities in the Territory
    sufficiently in advance of submitting such filings so as to allow for a reasonable opportunity for Ionis to review and comment on such claims.&#160; Upon Ionis&#8217; request during the Term, BicycleTx shall use reasonable efforts, to the extent reasonably
    practicable under applicable patent law, to separate [***] from any BicycleTx Relevant Patent, and to file one or more divisional or continuation patent applications that [***] shall be deemed BicycleTx Product Patents hereunder as of the date of
    filing, and shall thereafter be subject to <u>Section 7.2.3</u>.&#160; For clarity, all Patents that issue from such [***], shall be included as BicycleTx Product Patents under this Agreement.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;If, in the reasonable opinion of BicycleTx&#8217;s patent counsel, [***], BicycleTx shall consider in good faith the requests and suggestions of Ionis with respect to such BicycleTx drafts and
    with respect to strategies for filing and prosecuting such Patents in the Territory.&#160; If BicycleTx decides not to prosecute, or maintain any BicycleTx Relevant Patents that [***] in a country or other jurisdiction in the Territory, BicycleTx shall
    provide reasonable prior written notice to Ionis of such intention (which notice shall, in any event, be given no later than [***] prior to the next deadline for any action that may be taken with respect to such BicycleTx Relevant Patents that [***] in
    such country or other jurisdiction), and BicycleTx shall reasonably consider a request by Ionis to assume the control and direction of the preparation, filing, prosecution, and maintenance of such Patent at its sole cost and expense in such country or
    other jurisdiction.&#160; For clarity, BicycleTx shall [***].&#160; If BicycleTx grants its consent to Ionis&#8217; assumption of such activities, Ionis shall assume the responsibility and control for the preparation, filing, prosecution, and maintenance of such
    BicycleTx Relevant Patent.&#160; In such event, Bicycle shall reasonably cooperate with Ionis with respect to such Patent in such country or other jurisdiction as provided under <u>Section 7.2.4</u>.</div>
  <div>&#160;</div>
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    <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 32 -</font></div>
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.2.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Ionis Patents</font>.&#160; Ionis shall have the sole right, but not the obligation, through the use of internal or
    outside counsel, to prepare, file, prosecute, and maintain the Ionis Patents, BicycleTx Product Patents, and Joint Product Patents worldwide, at Ionis&#8217; expense.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.2.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">BicycleTx Product Patents and Joint Patents</font>.&#160; Ionis shall have the first right, but not the obligation,
    through the use of internal counsel, or outside counsel reasonably acceptable to BicycleTx, to prepare, file, prosecute, and maintain the BicycleTx Product Patents and the Joint Patents worldwide, at Ionis&#8217; expense.&#160; Ionis shall keep BicycleTx
    reasonably informed of all material steps with regard to the preparation, filing, prosecution, and maintenance of the BicycleTx Product Patents and Joint Patents, including by providing BicycleTx with a copy of material communications to and from any
    patent authority in the Territory regarding such Patents, and by providing BicycleTx drafts of any material filings to be made to such patent authorities in the Territory sufficiently in advance of submitting such filings so as to allow for a
    reasonable opportunity for BicycleTx to review and comment thereon.&#160; Ionis shall consider in good faith the requests and suggestions of BicycleTx with respect to such Ionis drafts and with respect to strategies for filing and prosecuting such Patents
    in the Territory.&#160; If Ionis decides not to prepare, file, prosecute, or maintain any BicycleTx Product Patent or Joint Patent in a country or other jurisdiction in the Territory, Ionis shall provide reasonable prior written notice to BicycleTx of such
    intention (which notice shall, in any event, be given no later than [***] prior to the next deadline for any action that may be taken with respect to such BicycleTx Product Patent or Joint Patent in such country or other jurisdiction), and BicycleTx
    shall thereupon have the option, in its sole discretion, to assume the control and direction of the preparation, filing, prosecution, and maintenance of such Patent at its sole cost and expense in such country or other jurisdiction.&#160; Upon BicycleTx&#8217;s
    written acceptance of such option, BicycleTx shall assume the responsibility and control for the preparation, filing, prosecution, and maintenance of such BicycleTx Product Patent or Joint Patent, as applicable.&#160; In such event, Ionis shall reasonably
    cooperate with BicycleTx with respect to such Patent in such country or other jurisdiction as provided under <u>Section 7.2.4</u>. Notwithstanding the foregoing, following the termination of Oligo Exclusivity, BicycleTx shall assume sole
    responsibility for the prosecution and maintenance of BicycleTx Product Patents that solely Cover Licensed Products and Compounds directed to any Target that is not a Collaboration Target, and Ionis will reasonably cooperate with BicycleTx to transfer
    responsibility for such prosecution and maintenance activities to BicycleTx for any such BicycleTx Product Patents promptly following the loss of Oligo Exclusivity.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.2.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Cooperation</font>.&#160; The Parties agree to cooperate fully in the preparation, filing, prosecution, and
    maintenance of the Product Patents and Joint Patents in the Territory under this Agreement.&#160; Cooperation shall include:</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;without limiting any other rights and obligations of the Parties under this Agreement, cooperating with respect to the timing, scope, and filing of such Patents to preserve and enhance
    the patent protection for Compounds and Licensed Products, including the manufacture and use thereof;</div>
  <div style="text-indent: 117pt;">&#160;</div>
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  </div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;executing all papers and instruments, or requiring its employees or contractors to execute such papers and instruments, so as to (i) effectuate the ownership of intellectual property set
    forth in <u>Section 7.1.2</u>; (ii) enable the other Party to apply for and to prosecute Patent applications in the Territory; and (iii) obtain and maintain any Patent extensions, supplementary protection certificates, and the like with respect to the
    Product Patents and Joint Patents in the Territory, in each case ((i), (ii), and (iii)) to the extent provided for in this Agreement;</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;consistent with this Agreement, assisting in any license registration processes with applicable governmental authorities that may be available in the Territory for the protection of a
    Party&#8217;s interests in this Agreement; and</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(d)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;promptly informing the other Party of any matters coming to such Party&#8217;s attention that may materially affect the preparation, filing, prosecution, or maintenance of any such Patents in
    the Territory.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.2.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">CREATE Act</font>. It is the intention of the Parties that this Agreement is a &#8220;joint research agreement&#8221; as that
    phrase is defined in 35 USC &#167; 102(c) (AIA) or 35 USC &#167; 103(c) (pre-AIA).&#160; In the event that either Party to this Agreement intends to overcome a rejection of a claimed invention within the Joint Patents or Product Patents under this Agreement pursuant
    to the provisions of 35 USC &#167; 102(c) or 35 USC &#167; 103(c), such Party shall first obtain the prior written consent of the other Party.&#160; Following receipt of such written consent, such Party shall limit any amendment to the specification or statement to
    the patent office with respect to this Agreement to that which is strictly required by 35 USC &#167; 102(c) or 35 USC &#167; 103(c) and the rules and regulations promulgated thereunder and which is consistent with the terms and conditions of this Agreement.&#160; If
    the Parties agree that, in order to overcome a rejection of a claimed invention within the Joint Patents or Product Patents pursuant to the provisions of the CREATE Act, the filing of a terminal disclaimer is required or advisable, the Parties shall
    first agree on terms and conditions under which the patent application subject to such terminal disclaimer and the patent or application over which such application is disclaimed shall be jointly enforced, if and to the extent that the Parties have not
    previously agreed to such terms and conditions.&#160; If Ionis enters into an agreement with a Third Party with respect to the further Research, Development, or Commercialization of a Compound or Licensed Product, BicycleTx shall, upon Ionis&#8217; request,
    similarly enter into such agreement with such Third Party for the purposes of furthering the Parties&#8217; objectives under this Agreement, provided that such agreement is consistent with the rights of BicycleTx under this <u>Section 7.2.5</u> and does not
    place any material obligation on BicycleTx.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.2.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Patent Term Extension and Supplementary Protection Certificate</font>.&#160; Ionis shall have authority and sole
    discretion for making decisions regarding patent term extensions, including supplementary protection certificates and any other extensions that are now or become available in the future, wherever applicable, for Ionis Patents, Product Patents, and
    Joint Patents in any country or other jurisdiction and for applying for any extension or supplementary protection certificate with respect to such Patents in the Territory.&#160; BicycleTx shall provide prompt and reasonable assistance, as requested by
    Ionis, including by taking such action as patent holder as is required under any Applicable Law to obtain such patent extension or supplementary protection certificate.&#160; If Ionis desires that a patent term extension should be applied for a BicycleTx
    Patent other than a BicycleTx Product Patent, BicycleTx and Ionis shall discuss in good faith such patent term extension, provided that such decision shall be at BicycleTx&#8217;s sole discretion.&#160; Ionis shall pay all expenses (including any expenses
    incurred by BicycleTx) with respect to obtaining any extension or supplementary protection certificate in the Territory requested by Ionis.</div>
  <div style="text-align: justify; text-indent: 72pt;"> <br>
  </div>
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.2.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Patent Listings</font>.&#160; Ionis will have the sole right to make all filings with Regulatory Authorities in the
    Territory with respect to Ionis Patents, Product Patents, and Joint Patents, including as required or allowed under Applicable Law, provided that with respect to Joint Patents and BicycleTx Product Patents, such right shall be solely with respect to
    Licensed Products.&#160; Ionis shall notify BicycleTx in writing of any BicycleTx Patents other than BicycleTx Product Patents that it intends to list with Regulatory Authorities related to the Licensed Products and, prior to filing any such listing,
    consult with and consider in good faith the requests and suggestions of BicycleTx regarding the same.</div>
  <div>&#160;</div>
  <div style="text-align: justify; font-weight: bold; text-indent: 36pt;">7.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Patent Enforcement<font style="font-weight: normal;">.</font></div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.3.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">BicycleTx Patents other than BicycleTx Product Patents</font>.&#160; Each Party shall promptly notify the other Party
    in writing of any alleged or threatened infringement of a BicycleTx Patent other than a BicycleTx Product Patent by a Third Party in the Territory of which such Party becomes aware based on the development or commercialization of, or an application to
    market a product containing, a Compound or a Licensed Product in the Territory.&#160; BicycleTx shall have the sole right, but not the obligation, to prosecute any such infringement involving any claims of BicycleTx Patents (other than BicycleTx Product
    Patents) for which it is responsible for prosecution and maintenance activities pursuant to <u>Section </u> 7.2.1, at its sole expense and BicycleTx shall retain control of prosecution of each such claim, suit, or proceeding. For clarity, Ionis shall
    have the first right, but not the obligation to prosecute any such infringement of BicycleTx Patents for which Ionis has assumed responsibility for prosecution and maintenance pursuant to <u>Section 7.2.1</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.3.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Ionis Patents, Product Patents, and Joint Patents</font>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Each Party shall promptly notify the other Party in writing of any alleged or threatened infringement of an Ionis Patent, a Product Patent, or a Joint Patent by a Third Party in the
    Territory of which such Party becomes aware (including alleged or threatened infringement based on the development or commercialization of, or an application to market a product containing, a Compound or Licensed Product in the Territory).</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Ionis shall have the sole right, but not the obligation, to prosecute any such infringement of Ionis Patents in the Territory at its sole expense, and Ionis shall retain control of the
    prosecution of such claim, suit, or proceeding.</div>
  <div style="text-indent: 117pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 117pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Ionis shall have the first right, but not the obligation, to prosecute any such infringement of BicycleTx Product Patents and Joint Patents, in each case for which it is responsible for
    prosecution and maintenance activities under <u>Section 7.2.3</u>, in each case in the Territory at its sole expense, and Ionis shall retain control of the prosecution of such claim, suit, or proceeding.&#160; If Ionis prosecutes any such infringement,
    BicycleTx shall have the right to join as a party to such claim, suit, or proceeding in the Territory and participate with its own counsel at its own expense; provided that Ionis shall retain control of the prosecution of such claim, suit, or
    proceeding.&#160; If Ionis does not take commercially reasonable steps to prosecute the alleged or threatened infringement in the Territory with respect to any such BicycleTx Product Patent or Joint Patent (i) within [***] following the first notice
    provided above with respect to such alleged infringement, or (ii) [***] before the time limit, if any, set forth in appropriate laws and regulations for filing of such actions, whichever comes first, then BicycleTx may prosecute the alleged or
    threatened infringement in the Territory at its own expense.&#160; For clarity, BicycleTx shall have the first right, but not the obligation to prosecute any such infringement of Joint Patents and BicycleTx Product Patents for which BicycleTx has assumed
    responsibility for prosecution and maintenance, including any such BicycleTx Product Patents following termination of Oligo Exclusivity.</div>
  <div>&#160;</div>
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.3.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Cooperation</font>.&#160; The Parties agree to cooperate fully in any infringement action pursuant to this <u>Section
      7.3</u>.&#160; To the extent necessary for a Party to bring such an action, the other Party shall, where necessary, furnish a power of attorney solely for such purpose or shall join in, or be named as a necessary party to, such action.&#160; Unless otherwise
    set forth herein, the Party entitled to bring any patent infringement litigation in accordance with this <u>Section 7.3</u> shall have the right to settle such claim; provided that neither Party shall have the right to settle any patent infringement
    litigation under this <u>Section 7.3</u> in a manner that materially diminishes or has a material adverse effect on the rights or interest of the other Party, or in a manner that imposes any costs or liability on, or involves any admission by, the
    other Party, without the express written consent of such other Party.&#160; The Party commencing the litigation shall provide the other Party with copies of all pleadings and other documents filed with the court and shall consider reasonable input from the
    other Party during the course of the proceedings.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.3.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Recovery</font>.&#160; Any recovery realized as a result of such litigation described in <u>Section 7.3.1</u> or <u>Section

      7.3.2</u> (whether by way of settlement or otherwise) shall be first allocated to reimburse the Parties for their costs and expenses in making such recovery (which amounts shall be allocated pro rata if insufficient to cover the totality of such
    expenses).&#160; Any remainder after [***<u>]</u>.</div>
  <div>&#160;</div>
  <div style="text-align: justify; font-size: 12pt; text-indent: 72pt;">
    <div style="text-indent: 36pt;"><font style="font-size: 10pt; font-weight: bold;">7.4</font><font style="font-weight: bold; font-size: 10pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Infringement Claims by Third Parties</font>&#160; <font style="font-size: 10pt;">If the manufacture,
        sale, or use of a Licensed Product in the Territory pursuant to this Agreement results in, or may result in, any claim, suit, or proceeding by a Third Party alleging patent infringement by Ionis (or its Affiliates or Sublicensees), Ionis shall
        promptly notify BicycleTx thereof in writing.&#160; Ionis shall have the first right, but not the obligation, to defend and control the defense of any such claim, suit, or proceeding at its own expense, using counsel of its own choice.&#160; BicycleTx may
        participate in any such claim, suit, or proceeding with counsel of its choice at its own expense.&#160; Without limitation of the foregoing, if Ionis finds it necessary or desirable to join BicycleTx as a party to any such action, BicycleTx shall, at
        Ionis&#8217; expense, execute all papers and perform such acts as reasonably required.&#160; If Ionis elects (in a written communication submitted to BicycleTx within a reasonable amount of time after notice of the alleged patent infringement) not to defend
        or control the defense of, or otherwise fails to initiate and maintain the defense of, any such claim, suit, or proceeding, within such time periods so that BicycleTx is not prejudiced by any delays, BicycleTx may conduct and control the defense of
        any such claim, suit, or proceeding at its own expense.&#160; Each Party shall keep the other Party reasonably informed of all material developments in connection with any such claim, suit, or proceeding.&#160; Any recoveries by Ionis of any sanctions
        awarded to Ionis and against a party asserting a claim being defended under this <u>Section 7.4</u> shall be applied first to reimburse each Party for its reasonable out-of-pocket costs of defending or participating in such claim, suit, or
        proceedings, on a pro rata basis.&#160; The balance of any such recoveries shall [***<u>]</u>.</font></div>
  </div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;"></font>
    <div style="font-weight: bold; text-indent: 36pt;">7.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Invalidity or Unenforceability Defenses or Actions<font style="font-weight: normal;">.</font></div>
    <div>&#160;</div>
  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.5.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Notice</font>.&#160; Each Party shall promptly notify the other Party in writing of any alleged or threatened
    assertion of invalidity or unenforceability of any of the BicycleTx Patents that Cover a Compound or Licensed Product, Ionis Patents, or Joint Patents by a Third Party, in each case in the Territory and of which such Party becomes aware.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.5.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">BicycleTx Patents other than BicycleTx Product Patents</font>.&#160; BicycleTx shall have the sole right, but not the
    obligation, to defend and control the defense of the validity and enforceability of the BicycleTx Patents other than the BicycleTx Product Patents at its own expense in the Territory.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.5.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Ionis Patents</font>.&#160; Ionis shall have the sole right, but not the obligation, to defend and control the defense
    of the validity and enforceability of the Ionis Patents at its own expense in the Territory.</div>
  <div>&#160;</div>
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  </div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.5.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">BicycleTx Product Patents and Joint Patents</font>.&#160; Ionis shall have the first right, but not the obligation, to
    defend and control the defense of the validity and enforceability of the BicycleTx Product Patents and Joint Patents at its own expense in the Territory, in each case for which it is responsible for prosecution and maintenance activities under <u>Section

      7.2.3</u>.&#160; BicycleTx may participate in any such claim, suit, or proceeding in the Territory related to the BicycleTx Product Patents and Joint Patents with counsel of its choice at its own expense; provided that Ionis shall retain control of the
    defense in such claim, suit, or proceeding.&#160; If Ionis elects not to defend or control the defense of the BicycleTx Product Patents or Joint Patents in a suit brought in the Territory, or otherwise fails to initiate and maintain the defense of any such
    claim, suit, or proceeding, then BicycleTx may conduct and control the defense of any such claim, suit, or proceeding, at its own expense; provided, that BicycleTx shall obtain the written consent of Ionis prior to settling or compromising such
    defense, such consent not to be unreasonably withheld, conditioned, or delayed.&#160; For clarity, BicycleTx shall have the first right, but not the obligation to defend and control the defense of the validity and enforceability of BicycleTx Product Patents
    and Joint Patents for which BicycleTx has assumed responsibility for prosecution and maintenance, including any such BicycleTx Product Patents following termination of Oligo Exclusivity.</div>
  <div style="text-indent: 72pt;">&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">7.5.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Cooperation</font>.&#160; Each Party shall assist and cooperate with the other Party as such other Party may
    reasonably request from time to time in connection with its activities set forth in this <u>Section 7.5</u>, including by being joined as a party plaintiff in such action or proceeding, providing access to relevant documents and other evidence, and
    making its employees available at reasonable business hours.&#160; In connection with any such defense or claim or counterclaim, the controlling Party shall consider in good faith any comments from the other Party, shall keep the other Party reasonably
    informed of any steps taken, and shall provide copies of all documents filed, in connection with such defense, claim, or counterclaim.&#160; In connection with the activities set forth in this <u>Section 7.5</u>, each Party shall consult with the other as
    to the strategy for the defense of the BicycleTx Patents, Ionis Patents, and Joint Patents.</div>
  <div>&#160;</div>
  <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;"></font>
    <div style="text-indent: 36pt;"><font style="font-weight: bold;">7.6</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160; Inventor&#8217;s Remuneration</font>&#160; Each Party shall be solely responsible for any remuneration that may be due such Party&#8217;s inventors under
      any applicable inventor remuneration laws.</div>
    <div>&#160;</div>
  </div>
  <div>
    <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">7.7</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160; Common Interest</font>&#160; All information exchanged between the Parties regarding the prosecution, maintenance,
      enforcement and defense of Patents under this <u>ARTICLE 7</u> will be deemed to be Confidential Information of the disclosing Party.&#160; In addition, the Parties acknowledge and agree [***].&#160; The Parties agree and acknowledge [***].&#160; Notwithstanding
      anything to the contrary in this Agreement, to the extent a Party has a good faith belief that any information required to be disclosed by such Party to the other Party under this <u>ARTICLE 7</u> is protected by attorney-client privilege or any
      other applicable legal privilege or immunity, such Party shall not be required to disclose such information and the Parties shall in good faith cooperate to agree upon a procedure (including entering into a specific common interest agreement or
      disclosing such information on a &#8220;for counsel eyes only&#8221; basis or similar procedure) under which such information may be disclosed without waiving or breaching such privilege or immunity.</div>
    <div style="text-align: center; margin-left: 21.3pt; font-weight: bold;">&#160;</div>
    <div style="text-align: center; margin-left: 21.3pt; font-weight: bold;">ARTICLE 8</div>
  </div>
  <div>
    <div>
      <div style="text-align: center; margin-left: 21.3pt; font-weight: bold;">CONFIDENTIALITY AND NON-DISCLOSURE</div>
      <div>&#160;</div>
      <font style="font-weight: bold;"> </font>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">8.1</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Confidentiality Obligations</font>.&#160; Except to the extent expressly authorized by this Agreement or otherwise
        agreed in writing by the Parties, during the Term and for [***] thereafter, the receiving Party shall keep confidential and shall not publish or otherwise disclose, and shall not use for any purpose other than as expressly provided for in this
        Agreement, any Confidential Information furnished or otherwise made known to it, directly or indirectly, by the other Party, and each Party shall keep confidential and shall not publish or otherwise disclose the terms of this Agreement except as
        permitted herein.&#160; Each Party may use the other Party&#8217;s Confidential Information only to the extent required to accomplish the purposes of this Agreement, including exercising its rights and performing its obligations under this Agreement.&#160; Each
        Party will use at least the same standard of care as it uses to protect its own proprietary or confidential information (but no less than reasonable care) to ensure that its employees, agents, consultants, contractors, and other representatives do
        not disclose or make any unauthorized use of the other Party&#8217;s Confidential Information.&#160; Each Party will promptly notify the other upon discovery of any loss or unauthorized use or disclosure of the other Party&#8217;s Confidential Information.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">8.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Exceptions</font>.&#160; The obligations of confidentiality and non-use set forth in <u>Section 8.1</u> above shall
        not apply to any information that the receiving Party can demonstrate by written evidence:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">8.2.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;is already known to the receiving Party, other than under an obligation of confidentiality, at the time of disclosure by the disclosing Party;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">8.2.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;is now, or hereafter becomes, generally available to the public or otherwise part of the public domain through no fault of the receiving
        Party;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">8.2.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;is disclosed to the receiving Party by a Third Party who had no obligation to the disclosing Party not to disclose such information to others;
        or</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">8.2.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;was independently discovered or developed by the receiving Party without the use of Confidential Information belonging to the disclosing
        Party.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">Specific aspects or details of Confidential Information shall not be deemed to be within the public domain or in the possession of the receiving Party merely because the Confidential Information is embraced by more
        general information in the public domain or in the possession of the receiving Party.&#160; Further, any combination of Confidential Information shall not be considered in the public domain or in the possession of the receiving Party merely because
        individual elements of such Confidential Information are in the public domain or in the possession of the receiving Party unless the combination and its principles are in the public domain or in the possession of the receiving Party.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">8.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Permitted Disclosures<font style="font-weight: normal;">.</font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">8.3.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Pursuant to Applicable Law</font>.&#160; Each Party may disclose Confidential Information to the extent that such
        disclosure is, in the reasonable opinion of the receiving Party&#8217;s legal counsel, required to be disclosed pursuant to law, regulation, or a valid order of a court of competent jurisdiction or other supra-national, federal, national, regional,
        state, provincial, or local governmental body of competent jurisdiction, provided that the receiving Party shall first have given prompt written notice (and to the extent possible, at least [***] notice) to the disclosing Party and given the
        disclosing Party a reasonable opportunity to take whatever action it deems necessary to protect its Confidential Information.&#160; If no protective order or other remedy is obtained, or the disclosing Party waives compliance with the terms of this
        Agreement, the receiving Party shall furnish only that portion of Confidential Information which the receiving Party is advised by counsel is legally required to be disclosed; for clarity, disclosures required in the reasonable opinion of the
        receiving Party&#8217;s legal counsel to the U.S. Securities and Exchange Commission (or equivalent foreign agency) shall be subject to the following <u>Section 8.3.2</u>.</div>
      <div>&#160;</div>
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        <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 38 -</font></div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">8.3.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Securities Exchange Filings</font>.&#160; The Parties acknowledge that either or both Parties (or its Affiliates)
        may be obligated to make one or more filings (including to file a copy of this Agreement or Stock Purchase Agreement) with the U.S. Securities and Exchange Commission (or equivalent foreign agency) or a governmental authority. Each Party will be
        entitled to make such a required filing, provided that if such filing includes a copy of this Agreement it will (a) submit in connection with such filing a copy of this Agreement in a form mutually agreed by the Parties in advance or, if, despite
        the reasonable efforts of the filing Party a form mutually agreed by the Parties cannot be agreed in advance, redacted to the extent permitted by Applicable Law, based on advice of filing Party&#8217;s counsel (the &#8220;<font style="font-weight: bold;">Redacted

          Agreement</font>&#8221;), (b) request, and use reasonable efforts consistent with Applicable Laws to obtain, confidential treatment of all terms redacted in the Redacted Agreement, for a period of at least [***], (c) unless otherwise agreed in writing
        by the other Party, request an appropriate extension of the term of the confidential treatment period if legally justifiable.&#160; For clarity, following a request from a governmental authority to change the redactions requested by a Party in the
        Redacted Agreement, a Party will not be in breach of this <u>Section 8.3.2</u> for unredacting those redactions rejected by the applicable governmental authority, provided that such Party shall provide the other Party with a notice of the required
        change(s) and a copy of the revised redactions.&#160; Each Party will be responsible for its own legal and other external costs in connection with any such filing, registration, or notification.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">8.3.3</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Additional Permitted Disclosures</font>.&#160; In addition to disclosures pursuant to <u>Sections 8.3.1</u> and <u>8.3.2</u>
        and as otherwise expressly permitted by this Agreement, each Party may disclose Confidential Information belonging to the other Party if and to the extent such disclosure is reasonably necessary in the following instances:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;">(a)&#160; &#160; &#160; under appropriate conditions of confidentiality and on a need-to-know basis to its legal and financial advisors;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; under appropriate conditions of confidentiality in connection with an actual or potential (i) permitted license or sublicense of its rights hereunder, (ii) debt, lease, or equity
        financing of such Party, (iii) merger, acquisition, consolidation, share exchange, or other similar transaction involving such Party and a Third Party, and (iv) co-funding or financing arrangement, provided that in each case ((i) to (iv)) the
        receiving Party takes reasonable and lawful actions to minimize the degree of such disclosure;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;under appropriate conditions of confidentiality to any Third Party that is or may be engaged to perform services in connection with the Development, Manufacturing, or
        Commercialization of the Licensed Products as necessary to enable such Third Party to perform such services;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;">(d)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;to any government agency or authority in connection with seeking government funding, support, or grants;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;">(e)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;filing, prosecuting, and maintaining Patents, and prosecuting and defending litigation, in each case as permitted by this Agreement;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;">(f) &#160; &#160;&#160;&#160;&#160; obtaining and maintaining Regulatory Approvals for, and conducting preclinical studies or Clinical Trials of, Licensed Products that such Party has a license or right to Develop or
        Commercialize under this Agreement in a given country or jurisdiction; and</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;">(g)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; in the case of Confidential Information pertaining to TfR1 Bicycles, BicycleTx may disclose such information to [***], and <font style="font-style: italic;">provided</font> that
        BicycleTx does not [***].<sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">&#160;</sup></div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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      </div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">8.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Use of Name.&#160; <font style="font-weight: normal;">Except as expressly provided herein, neither Party shall mention or otherwise use the name, logo, or trademark of
          the other Party or any of its Affiliates (or any abbreviation or adaptation thereof) in any publication, press release, marketing and promotional material, or other form of publicity without the prior written approval of such other Party in each
          instance.&#160; The restrictions imposed by this <u>Section 8.4</u> shall not prohibit either Party from making any disclosure identifying the other Party that, in the opinion of the disclosing Party&#8217;s counsel, is required by Applicable Law; provided
          that such Party shall submit the proposed disclosure identifying the other Party in writing to the other Party as far in advance as reasonably practicable (and in no event less than five Business Days prior to the anticipated date of disclosure)
          so as to provide a reasonable opportunity to comment thereon. </font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">8.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Press Releases</font>.&#160; The Parties agree to issue separate, mutually approved press releases at or shortly
        after the Effective Date within the time-period as required by relevant securities laws.&#160; It is understood that each Party may desire or be required to issue subsequent press releases relating to this Agreement or activities hereunder.&#160; The Parties
        agree to consult with each other reasonably and in good faith with respect to the text and timing of such press releases prior to the issuance thereof.&#160; Notwithstanding the foregoing, neither Party may unreasonably withhold, condition, or delay
        consent to such releases by more than five Business Days, and either Party may issue such press releases or make such disclosures to the U.S. Securities and Exchange Commission (or equivalent foreign agency) as it determines, based on advice of
        counsel, is reasonably necessary to comply with Applicable Laws or for appropriate market disclosure.&#160; Each Party shall provide the other Party with advance notice of legally required disclosures to the extent practicable, and to the extent
        possible, at least [***] prior to such disclosure.&#160; Following the initial joint press release announcing this Agreement, either Party shall be free to disclose, without the other Party&#8217;s prior written consent, the existence of this Agreement, the
        identity of the other Party, and those terms of the Agreement which have already been publicly disclosed in accordance with this <u>Section 8.5</u>.&#160; </div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">8.6</font>&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Publications</font>. During the Term, the disclosure by either Party relating to any Compound or Licensed Product
        in any publication or presentation shall be in accordance with the procedure set forth in this <u>Section 8.6</u>.&#160; A Party (&#8220;<font style="font-weight: bold;">Publishing Party</font>&#8221;) shall provide the other Party with a copy of any proposed
        publication or presentation at least [***] prior to submission for publication so as to provide such other Party with an opportunity to recommend any changes to the Publishing Party that it reasonably believes are necessary to continue to maintain
        such Party&#8217;s Confidential Information in accordance with the requirements of this Agreement. The incorporation of such recommended changes shall not be unreasonably refused; and if such other Party notifies (&#8220;<font style="font-weight: bold;">Publishing

          Notice</font>&#8221;) the Publishing Party in writing, within [***] after receipt of the copy of the proposed publication or presentation, that such publication or presentation in its reasonable judgment (a) contains an Invention, solely or jointly
        conceived or reduced to practice by the other Party, for which the other Party reasonably desires to obtain patent protection or (b) could be expected to have a material adverse effect on the commercial value of any Confidential Information
        disclosed by the other Party to the Publishing Party, the Publishing Party shall prevent such publication or delay such publication for a mutually agreed period of time.&#160; In the case of Inventions, a delay shall be for a period reasonably
        sufficient to permit the timely preparation and filing of a patent application(s) on such Invention, and in no event less than [***] from the date of the Publishing Notice.</div>
      <div>&#160;</div>
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      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">8.7</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Destruction or Return of Confidential Information</font>.&#160; Upon the effective date of the termination of this
        Agreement for any reason, each Party shall, as soon as reasonably practicable, with respect to Confidential Information to which such Party does not retain rights under the surviving provisions of this Agreement,&#160; either return to the disclosing
        Party or destroy (at the receiving Party&#8217;s election) all copies of such Confidential Information in the possession of the receiving Party, and confirm such destruction or complete return in writing to the disclosing Party, provided that the
        receiving Party shall be permitted to retain one copy of such Confidential Information for the sole purpose of performing any continuing obligations hereunder, as required by Applicable Law, or for archival purposes. Notwithstanding the foregoing,
        the receiving Party also shall be permitted to retain such additional copies of or any computer records or files containing such Confidential Information that have been created solely by such Party&#8217;s automatic archiving and back-up procedures, to
        the extent created and retained in a manner consistent with such Party&#8217;s standard archiving and back-up procedures, but not for any other use or purpose.&#160; If the termination this Agreement is with respect to one or more Terminated Targets but not
        in its entirety, the obligations under this <u>Section 8.7</u> shall apply solely to the extent the applicable Confidential Information of the disclosing Party relates to such Terminated Targets and Terminated Assets, as applicable, and to the
        extent that such Confidential Information cannot be separated from information that relates to Targets and Licensed Products and Compounds other than the Terminated Targets and Terminated Assets, the receiving Party shall have no rights to use or
        disclose such Confidential Information in connection with Terminated Assets or Terminated Targets following the effective date of termination.</div>
      <div>&#160;</div>
      <div style="text-align: center; margin-left: 21.3pt; font-weight: bold;">ARTICLE 9</div>
      <div style="text-align: center; margin-left: 21.3pt; font-weight: bold;">REPRESENTATIONS AND WARRANTIES</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">9.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Mutual Representations and Warranties<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">BicycleTx and Ionis each represents and
          warrants to the other, as of the Effective Date, as follows: </font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.1.1</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Organization</font>.&#160; It is a corporation duly incorporated, validly existing, and in good standing under the
        laws of the jurisdiction of its incorporation, and has all requisite corporate power and authority, to execute, deliver, and perform this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.1.2</font>&#160;&#160;&#160; <font style="font-weight: bold;">Authorization</font>.&#160; The execution and delivery of this Agreement and the performance by it of the transactions
        contemplated hereby have been duly authorized by all necessary corporate action and do not violate (a) such Party&#8217;s charter documents, bylaws, or other organizational documents, (b) in any material respect, any agreement, instrument, or contractual
        obligation to which such Party is bound, (c) any requirement of any Applicable Law, or (d) any order, writ, judgment, injunction, decree, determination, or award of any court or governmental agency presently in effect applicable to such Party.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.1.3</font>&#160;&#160;&#160; <font style="font-weight: bold;">Binding Agreement</font>.&#160; This Agreement is a legal, valid, and binding obligation of such Party enforceable
        against it in accordance with its terms and conditions, subject to the effects of bankruptcy, insolvency, or other laws of general application affecting the enforcement of creditor rights, judicial principles affecting the availability of specific
        performance, and general principles of equity (whether enforceability is considered a proceeding at law or equity).</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.1.4</font>&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">No Inconsistent Obligation</font>.&#160; It is not under any obligation, contractual or otherwise, to any Person that
        conflicts with or is inconsistent in any material respect with the terms of this Agreement or that would impede the diligent and complete fulfillment of its obligations hereunder.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">9.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Additional Representations, Warranties, and Covenants of Bicycle<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">BicycleTx further
          represents, warrants, and covenants to Ionis, as of the Effective Date, as follows: </font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.1</font>&#160;&#160;&#160;&#160;&#160; All BicycleTx Patents that Cover a TfR1 Bicycle existing as of the Effective Date are listed on <u>Schedule 9.2.1</u> (the &#8220;<font style="font-weight: bold;">Existing Patents</font>&#8221;).</div>
      <div>&#160;</div>
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        <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 41 -</font></div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.2</font>&#160;&#160;&#160;&#160; There are no judgments, or settlements against, or amounts with respect thereto, owed by BicycleTx or any of its Affiliates relating to the
        Existing Patents.&#160; No claim or litigation has been brought or threatened in writing or any other form by any Person alleging, and BicycleTx has no knowledge of any claim, whether or not asserted, that the Existing Patents are invalid or
        unenforceable.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.3</font>&#160;&#160;&#160;&#160;&#160; To BicycleTx&#8217;s knowledge, no Person is infringing or threatening to infringe or misappropriating or threatening to misappropriate the Existing
        Patents.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.4</font>&#160;&#160;&#160;&#160;&#160;&#160; To BicycleTx&#8217;s knowledge, [***].</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.5</font>&#160;&#160;&#160;&#160;&#160;&#160; The [***].</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.6</font>&#160;&#160;&#160;&#160;&#160;&#160; BicycleTx is [***].</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.7</font>&#160;&#160;&#160;&#160;&#160;&#160; [***].</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.8</font>&#160;&#160;&#160;&#160; BicycleTx is the sole and exclusive owner of the entire right, title, and interest in the Existing Patents, and BicycleTx is entitled to grant the
        license granted to Ionis herein.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.9</font>&#160;&#160;&#160;&#160;&#160;&#160; [***].</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.10</font>&#160; With respect to the BicycleTx Patents, all applicable official fees, maintenance fees and annuities for the BicycleTx Patents have been paid as of
        the Effective Date.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.11</font>&#160;&#160;&#160;&#160; All employees and contractors of BicycleTx performing activities under the Option Agreement or this Agreement on behalf of BicycleTx (including
        for any Affiliate) will be obligated (or were obligated as the case may be) to assign all rights, title and interests in and to any inventions developed by them, whether or not patentable, to BicycleTx or such Affiliate, respectively, as the sole
        owner thereof, prior to performing any such activities, or otherwise grant to BicycleTx or such Affiliate sufficient rights to such inventions to the extent necessary to effect the license and ownership provisions of the Option Agreement or this
        Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.12</font>&#160;&#160;&#160; During the Term, BicycleTx covenants that it will not enter into or amend any agreement, whether written or oral, that would conflict with or
        otherwise diminish the rights granted to Ionis hereunder.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.2.13</font>&#160;&#160;&#160; Neither BicycleTx nor any of its employees is debarred or disqualified under the U.S. Federal Food, Drug and Cosmetic Act, as may be amended, or
        comparable laws in any country or jurisdiction other than the U.S., and it does not, and will not during the Research Term, employ or use the services of any person who is debarred or disqualified in connection with activities relating to the TfR1
        Bicycles.&#160; If BicycleTx becomes aware of the debarment or disqualification or threatened debarment or disqualification of any Person providing services to BicycleTx, including BicycleTx itself or its or its Affiliate&#8217;s employees or agents, that
        directly or indirectly relate to activities contemplated by this Agreement, BicycleTx shall immediately notify Ionis in writing and BicycleTx shall cease employing, contracting with, or retaining any such Person to perform any such services.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">9.3</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Additional Representations, Warranties and Covenants of Ionis</font><font style="font-weight: bold;">.</font>&#160;
        Ionis represents, warrants, and covenants to BicycleTx, as of the Effective Date, as follows:</div>
      <div>&#160;</div>
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        <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 42 -</font></div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.3.1</font>&#160;&#160;&#160;&#160; Ionis is entitled to grant BicycleTx the license as specified in <u>Section 2.2</u> with regard to Ionis Intellectual Property Controlled by Ionis
        or any of its Affiliates on the Effective Date.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">9.3.2</font>&#160;&#160;&#160;&#160;&#160; Neither Ionis nor any of its employees is debarred or disqualified under the U.S. Federal Food, Drug and Cosmetic Act, as may be amended, or
        comparable laws in any country or jurisdiction other than the U.S., and it does not, and will not during the Term, employ or use the services of any person who is debarred or disqualified in connection with activities relating to the Compounds and
        Licensed Products.&#160; If Ionis becomes aware of the debarment or disqualification or threatened debarment or disqualification of any Person providing services to Ionis, including Ionis itself or its or its Affiliate&#8217;s employees or agents, that
        directly or indirectly relate to activities contemplated by this Agreement, Ionis shall immediately notify BicycleTx in writing and Ionis shall cease employing, contracting with, or retaining any such Person to perform any such services.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">9.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;DISCLAIMER OF WARRANTIES<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">EXCEPT FOR THE EXPRESS WARRANTIES SET FORTH HEREIN, NEITHER
          PARTY MAKES ANY REPRESENTATIONS OR GRANTS ANY WARRANTIES, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, BY STATUTE OR OTHERWISE, AND EACH PARTY SPECIFICALLY DISCLAIMS ANY OTHER WARRANTIES, WHETHER WRITTEN OR ORAL, OR EXPRESS OR
          IMPLIED, INCLUDING ANY WARRANTY OF QUALITY, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR USE OR PURPOSE OR ANY WARRANTY AS TO THE VALIDITY OF ANY PATENTS OR THE NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHTS OF THIRD PARTIES. </font></div>
      <div>&#160;</div>
      <div style="text-align: center; font-weight: bold;">ARTICLE 10</div>
      <div style="text-align: center; font-weight: bold;">INDEMNIFICATION; INSURANCE</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">10.1&#160;&#160;&#160;&#160;&#160;&#160;&#160; Indemnification of Bicycle<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">Ionis shall indemnify, defend, and hold harmless BicycleTx,
          its Affiliates, and its and their respective directors, officers, employees, and agents (the &#8220;<font style="font-weight: bold;">BicycleTx Indemnitees</font>&#8221;) from and against any and all losses, damages, liabilities, penalties, settlements,
          costs, taxes (including penalties and interest) and expenses (including reasonable attorneys&#8217; fees and other expenses of litigation) (collectively, &#8220;Losses&#8221;) in connection with any and all suits, investigations, claims, or demands of Third
          Parties (collectively, &#8220;Third Party Claims&#8221;) incurred by or rendered against the BicycleTx Indemnitees to the extent arising from or occurring as a result of: (a) the breach by Ionis or its Affiliates of this Agreement; (b) the negligence,
          recklessness, or willful misconduct on the part of Ionis or its Affiliates or their respective directors, officers, employees, and agents in performing any of its or their obligations under this Agreement; or (c) the Research or Exploitation of
          any Compounds or Licensed Products by Ionis or its Affiliates or Sublicensees; except in each case ((a) &#8211; (c)) to the extent that BicycleTx has an obligation to indemnify Ionis pursuant to <u>Section 10.2</u>. </font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">10.2&#160;&#160;&#160;&#160;&#160;&#160;&#160; Indemnification of Ionis<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">BicycleTx shall indemnify, defend, and hold harmless Ionis,
          its Affiliates and its and their respective directors, officers, employees, and agents (the &#8220;<font style="font-weight: bold;">Ionis Indemnitees</font>&#8221;) from and against any and all Losses in connection with any and all Third Party Claims
          incurred by or rendered against the Ionis Indemnitees to the extent arising from or occurring as a result of: (a) the breach by BicycleTx or its Affiliates of this Agreement; or (b) the negligence, recklessness, or willful misconduct on the part
          of BicycleTx or its Affiliates or its or their respective directors, officers, employees, and agents in performing its obligations under this Agreement; except in each case ((a) &#8211; (b)) to the extent that Ionis has an obligation to indemnify
          BicycleTx pursuant to <u>Section 10.1</u>. </font></div>
      <div>&#160;</div>
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      </div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">10.3&#160;&#160;&#160;&#160;&#160;&#160;&#160; Notice of Claim<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">All indemnification claims in respect of a Party, its Affiliates, or
          its or their respective directors, officers, employees and agents shall be made solely by such Party to this Agreement (the &#8220;<font style="font-weight: bold;">Indemnified&#160;Party</font>&#8221;).&#160; The Indemnified Party shall give the indemnifying Party
          (the &#8220;<font style="font-weight: bold;">Indemnifying Party</font>&#8221;) prompt written notice (an &#8220;<font style="font-weight: bold;">Indemnification&#160;Claim&#160;Notice</font>&#8221;) of any Losses or discovery of fact upon which such Indemnified Party intends to
          base a request for indemnification under this <u>ARTICLE 10</u>, but in no event shall the Indemnifying Party be liable for any Losses that result from any delay by the Indemnified Party in providing such notice.&#160; Each Indemnification Claim
          Notice must contain a description of the claim and the nature and amount of such Loss (to the extent that the nature and amount of such Loss is known at such time).&#160; The Indemnified Party shall furnish promptly to the Indemnified Party copies of
          all papers and official documents received in respect of any Losses and Third Party Claims. </font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">10.4&#160;&#160;&#160;&#160;&#160;&#160;&#160; Control of Defense<font style="font-weight: normal;">.</font> <font style="font-weight: normal;">The Indemnifying Party shall have the right, but not the obligation,
          to conduct and control, through counsel of its choosing, any action for which indemnification is sought, and if the Indemnifying Party elects to assume the defense thereof, the Indemnifying Party shall not be liable to the Indemnified Party for
          any legal expenses of other legal counsel or any other expenses subsequently incurred by such Indemnified Party in connection with the defense thereof. The Indemnifying Party may settle any action, claim, or suit for which the Indemnified Party
          is seeking indemnification; provided that the Indemnifying Party shall first give the Indemnified Party advance written notice of any proposed compromise or settlement and such Indemnified Party provides prior written approval, such approval not
          to be unreasonably conditioned, withheld or delayed. The Parties and their employees shall cooperate fully with each other and their legal representatives in the investigation, defense, prosecution, negotiation, or settlement of any such claim or
          suit. Each Party&#8217;s indemnification obligations under this <u>ARTICLE 10</u> shall not apply to amounts paid by an Indemnified Party in settlement of any action with respect to a Third Party claim, if such settlement is effected without the prior
          written consent of the Indemnifying Party, which consent shall not be unreasonably conditioned, withheld or delayed.&#160; In no event shall the Indemnifying Party settle or abate any Third Party Claim in a manner that would diminish the rights or
          interests of the Indemnified Party, admit any liability, fault, or guilt by the Indemnified Party, or obligate the Indemnified Party to make any payment, take any action, or refrain from taking any action, without the prior written approval of
          the Indemnified Party. </font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.5</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Limitation of Liability</font>. EXCEPT FOR DAMAGES PAYABLE FOR A PARTY&#8217;S BREACH OF ITS OBLIGATIONS UNDER <u>ARTICLE

          8</u> (BASED ON REASONABLE WRITTEN EVIDENCE) OR REQUIRED TO BE PAID PURSUANT TO A PARTY&#8217;S INDEMNIFICATION OBLIGATIONS UNDER THIS <u>ARTICLE 10</u>, NEITHER PARTY NOR ANY OF ITS AFFILIATES SHALL BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL,
        EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF PROFITS OR BUSINESS INTERRUPTION, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, TORT, NEGLIGENCE, BREACH OF STATUTORY DUTY OR OTHERWISE IN CONNECTION WITH THIS
        AGREEMENT OR THE EXERCISE OF ANY LICENSE GRANTED HERUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">10.6&#160;&#160;&#160;&#160;&#160;&#160;&#160; Insurance<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">Each Party shall maintain, at its own expense, commercial general liability
          insurance and other appropriate insurance in an amount consistent with sound business practice and reasonable in light of its obligations under this Agreement.&#160; Each Party shall maintain such insurance for the period commencing promptly after the
          Effective Date until [***] the Term.&#160; Each Party shall provide a certificate of insurance evidencing such coverage to the other Party upon request.&#160; It is understood that such insurance shall not be construed to create any limit of either Party&#8217;s
          obligations or liabilities with respect to its indemnification obligations under this Agreement.&#160; Without limiting the generality of the foregoing, Ionis shall maintain, at a minimum, [***]. </font></div>
      <div>&#160;</div>
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      </div>
      <div style="text-align: center; margin-left: 21.3pt; font-weight: bold;">ARTICLE 11</div>
      <div style="text-align: center; margin-left: 21.3pt; font-weight: bold;">TERM AND TERMINATION</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">11.1&#160;&#160;&#160;&#160;&#160; Term<font style="font-weight: normal;">.</font></font> This Agreement shall commence on the Effective Date and, unless earlier terminated in accordance
        herewith, shall continue in force and effect on a Licensed Product-by-Licensed Product and country-by-country basis, until the expiration of the Royalty Term for such Licensed Product in such country (such period, the &#8220;<font style="font-weight: bold;">Term</font>&#8221;).&#160; Upon the expiration of the Term for a particular Licensed Product in a particular country, the license grant to Ionis in <u>Section 2.1</u> shall become non-exclusive, fully-paid, royalty-free, and irrevocable with respect
        to such Licensed Product in such country.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">11.2&#160;&#160;&#160;&#160;&#160;&#160;&#160; Termination for Convenience<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">Ionis may terminate this Agreement in its entirety or on a
          Target-by-Target basis (i.e. with respect to all Compounds and Licensed Products directed to such Target), for any or no reason, upon: </font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.2.1</font>&#160;&#160;&#160;&#160; [***] prior written notice to BicycleTx if termination occurs [***]; and</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.2.2</font>&#160;&#160;&#160;&#160; [***] prior written notice to BicycleTx if termination occurs [***].</div>
      <div>&#160;</div>
      <div style="text-align: justify;">For clarity, with regard to termination of the Agreement in its entirety pursuant to this <u>Section 11.2</u>, the required notice period shall be that period that is applicable to the Licensed Product that is
        furthest advanced at the time of such termination.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">11.3&#160;&#160;&#160;&#160;&#160;&#160;&#160; Termination for Uncured Material Breach<font style="font-weight: normal;">.</font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.3.1</font>&#160;&#160;&#160; <font style="font-weight: bold;">Material Breach</font>.&#160; If either Party (the &#8220;<font style="font-weight: bold;">Non-Breaching Party</font>&#8221;)
        believes that the other Party (the &#8220;<font style="font-weight: bold;">Breaching Party</font>&#8221;) has materially breached one or more of its material obligations under this Agreement (other than for failure to achieve a diligence milestone under <u>Section

          4.5.2</u> the remedy for&#160; which is set forth in <u>Section 4.5.4</u>), then the Non-Breaching Party may deliver notice of such material breach to the Breaching Party (a &#8220;<font style="font-weight: bold;">Breach Notice</font>&#8221;).&#160; If (a) the
        Breaching Party does not dispute that it has committed a material breach of one or more of its material obligations under this Agreement, and (b) either (i) the Breaching Party fails to cure such breach within [***] ([***] with respect to any
        payment breach) after receipt of the Breach Notice (&#8220;<font style="font-weight: bold;">Breach Cure Period</font>&#8221;), or (ii) a cure cannot be fully achieved within such Breach Cure Period and the Breaching Party has failed to commence to cure or has
        failed to use diligent efforts to achieve a full cure within the Breach Cure Period, then the Non-Breaching Party may terminate this Agreement in whole or in part upon written notice to the Breaching Party, effective upon receipt by the Breaching
        Party, provided that if the Breaching Party is Ionis and such material breach relates solely to a Licensed Product and/or its corresponding Target (but not to all Licensed Products or Targets), then BicycleTx will only have the right to terminate
        the License Agreement solely with respect to such Licensed Product (and the corresponding Target) to which such material breach relates.&#160; If the Breaching Party disputes in good faith that it has materially breached one or more of its material
        obligations under this Agreement or that it has failed to timely or diligently cure such material breach, the Dispute shall be resolved pursuant to <u>Section 12.2</u> and the Breach Cure Period shall be tolled until such dispute is so resolved.&#160;
        Upon a determination of material breach or failure to cure, the Breaching Party may have the remainder of the Breach Cure Period to cure such material breach.&#160; If such material breach is not cured within the Breach Cure Period, then absent
        withdrawal of the Non-Breaching Party&#8217;s request for termination, this Agreement shall terminate, effective as of the expiration of the Breach Cure Period.</div>
      <div>&#160;</div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.3.2</font>&#160;&#160;&#160; <font style="font-weight: bold;">Adverse Ruling</font>. Furthermore, if as a result of the application <u>Section 12.2</u>, the Breaching Party
        is determined to be in material breach of one or more of its material obligations under this Agreement (other than for failure to achieve a diligence milestone under <u>Section 4.5.2</u> the remedy for&#160; which is set forth in <u>Section 4.5.4</u>),

        such that the Non-Breaching Party has the right to terminate this Agreement in whole or with respect to a particular Licensed Product and/or its corresponding Target (an &#8220;<font style="font-weight: bold;">Adverse Ruling</font>&#8221;) and the Breaching
        Party fails to complete the actions specified in such Adverse Ruling, or to cure such material breach within [***] ([***] with respect to any payment breach) after such Adverse Ruling, or such other period (which may be shorter) as the arbitrators
        may provide in such Adverse Ruling, then the Non-Breaching Party may terminate this Agreement in whole or in part upon written notice to the Breaching Party, provided that if the Breaching Party is Ionis and such Adverse Ruling relates solely to a
        Licensed Product and/or its corresponding Target (but not to all Licensed Products or Targets), then BicycleTx will only have the right to terminate the License Agreement solely with respect to the Licensed Product (and the corresponding Target) to
        which such Adverse Ruling relates.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">11.4</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160; Termination for Insolvency</font><font style="font-weight: normal;">.</font>&#160; If either Party (a) files for
        protection under bankruptcy or insolvency laws, (b) makes an assignment for the benefit of creditors, (c) appoints or suffers appointment of a receiver or trustee over substantially all of its property that is not discharged within [***] after such
        filing, (d) is a party to any dissolution or liquidation, (e) files a petition under any bankruptcy or insolvency act or has any such petition filed against it that is not discharged within [***] of the filing thereof, or (f) admits in writing its
        inability generally to meet its obligations as they fall due in the general course, then the other Party may terminate this Agreement in its entirety effective immediately upon written notice to such Party.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">11.5&#160;&#160;&#160;&#160;&#160;&#160;&#160; Rights in Bankruptcy<font style="font-weight: normal;">.</font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.5.1</font>&#160;&#160;&#160; <font style="font-weight: bold;">Applicability of 11 U.S.C. &#167; 365(n)</font>.&#160; All rights and licenses (collectively, the &#8220;<font style="font-weight: bold;">Intellectual Property</font>&#8221;) granted under or pursuant to this Agreement, including all rights and licenses to use improvements or enhancements developed during the Term, are intended to be, and shall otherwise be
        deemed to be, for purposes of Section 365(n) of the United States Bankruptcy Code (the &#8220;<font style="font-weight: bold;">Bankruptcy Code</font>&#8221;) or any analogous provisions in any other country or jurisdiction, licenses of rights to &#8220;intellectual
        property&#8221; as defined under Section 101(35A) of the Bankruptcy Code.&#160; The Parties agree that the licensee of such Intellectual Property under this Agreement shall retain and may fully exercise all of its rights and elections under the Bankruptcy
        Code, including Section 365(n) of the Bankruptcy Code, or any analogous provisions in any other country or jurisdiction.&#160; All of the rights granted to either Party under this Agreement shall be deemed to exist immediately before the occurrence of
        any bankruptcy case in which the other Party is the debtor.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.5.2</font>&#160;&#160;&#160; <font style="font-weight: bold;">Rights of non-Debtor Party in Bankruptcy</font>.&#160; If a bankruptcy proceeding is commenced by or against either
        Party under the Bankruptcy Code or any analogous provisions in any other country or jurisdiction, the non-debtor Party shall be entitled to a complete duplicate of (or complete access to, as appropriate) any Intellectual Property and all
        embodiments of such Intellectual Property, which, if not already in the non-debtor Party&#8217;s possession, shall be delivered to the non-debtor Party within five Business Days of such request; provided, that the debtor Party is excused from its
        obligation to deliver the Intellectual Property to the extent the debtor Party continues to perform all of its obligations under this Agreement and the Agreement has not been rejected pursuant to the Bankruptcy Code or any analogous provision in
        any other country or<font style="font-weight: bold;">&#160;</font>jurisdiction.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">11.6</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160; Effects of Termination</font><font style="font-weight: normal;">.</font>&#160; Upon any termination of this Agreement
        in its entirety by either Party, the following terms will apply.&#160; Upon any termination of this Agreement with respect to a particular Target (such terminated Target, a &#8220;<font style="font-weight: bold;">Terminated Target</font>&#8221;), the following
        terms will apply solely with respect to such Terminated Target and corresponding Terminated Assets.&#160; For clarity, during the pendency of any dispute regarding material breach and/or any Breach Cure Period, all of the terms and conditions of this
        Agreement shall remain in effect and the Parties shall continue to perform all of their respective obligations hereunder.</div>
      <div>&#160;</div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.6.1</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Licenses</font>.&#160; All licenses granted by either Party will automatically terminate.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.6.2</font>&#160; &#160; <font style="font-weight: bold;">Sublicenses</font>.&#160; Any Ionis Sublicensee will, from the effective date of such termination, automatically
        become a direct licensee of BicycleTx, provided that such Sublicensee is not then in default of its sublicense agreement and such sublicense was granted in accordance with <u>Section 2.4</u>, and provided further that: (a) such direct license
        shall not obligate (i) such Sublicensee to perform contractual obligations greater than those set forth in the applicable sublicense or (ii) BicycleTx to perform contractual obligations greater than those set forth herein, (b) the scope of such
        direct license shall be consistent with the scope of the license sublicensed to such Sublicensee, and (c) the amounts payable to BicycleTx by such Sublicensee under such direct license shall be equivalent to the amounts BicycleTx would have
        received from Ionis under this Agreement as a result of such Sublicensee&#8217;s activities had this Agreement remained in effect and such Sublicensee performed such activity under the sublicense agreement with Ionis.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">11.6.3</font>&#160;&#160;&#160; <font style="font-weight: bold;">Confidential Information</font>.&#160; Each Party shall return or cause to be returned to the other Party or destroy
        (and certify such destruction to such other Party) all Confidential Information and all substances or compositions of the other Party or its Affiliates delivered or provided by or on behalf of such other Party in accordance with <u>Section 8.7</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">11.7</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160; Accrued Rights; Surviving Obligations</font><font style="font-weight: normal;">.</font>&#160; Termination or expiration
        of this Agreement (either in its entirety or with respect to one or more Terminated Targets and Terminated Asset) for any reason shall be without prejudice to any rights that shall have accrued to the benefit of a Party prior to such termination or
        expiration.&#160; Such termination or expiration shall not relieve a Party from obligations that are expressly indicated to survive the termination or expiration of this Agreement.&#160; Without limiting the foregoing, the following Articles and Sections of
        this Agreement shall survive the termination or expiration of this Agreement for any reason: <u>Articles 1</u> (to the extent applicable to other surviving Sections or Articles), <u>8</u> (excluding <u>Section</u>&#160;<u>8.6</u>), <u>10</u>, and <u>12</u>
        (excluding <u>Section 12.6</u>), and <u>Section 4.12</u>, <u>Sections 6.4.4</u>, <u>6.5.2</u>, and <u>6.7</u> (in each case solely with respect to amounts accrued or owing as of the effective date of termination), <u>6.8</u>, <u>6.9</u>, <u>6.10</u>,
        <u>6.11</u>, <u>7.1</u>, <u>7.7</u>, <u>9.4</u>, <u>11.1</u>(last sentence only), <u>11.5</u>, <u>11.6</u>, <u>11.7]</u></div>
      <div>&#160;</div>
      <div style="text-align: center; font-weight: bold;">ARTICLE 12</div>
      <div style="text-align: center; font-weight: bold;">MISCELLANEOUS</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Governing Law and Service</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">12.1.1</font>&#160; <font style="font-weight: bold;">Governing Law</font>.&#160; This Agreement and the performance, enforcement, breach, and termination hereof shall be
        interpreted, governed by, and construed in accordance with the laws of the State of New York, United States excluding any conflicts or choice of law rule or principle that might otherwise refer construction or interpretation of this Agreement to
        the substantive law of another jurisdiction; provided, that all questions concerning (a) inventorship of Patents under this Agreement shall be determined in accordance with <u>Section 7.1.1</u> and (b) the construction or effect of Patents shall
        be determined in accordance with the laws of the country or other jurisdiction in which the particular Patent has been filed or granted, as the case may be.&#160; The Parties agree to exclude the application to this Agreement of the United Nations
        Convention on Contracts for the International Sale of Goods.</div>
      <div>&#160;</div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">12.1.2</font>&#160;&#160;&#160; <font style="font-weight: bold;">Service</font>.&#160; Each Party further agrees that service of any process, summons, notice, or document by
        registered mail to its address set forth in <u>Section 12.10</u> shall be effective service of process for any action, suit, or proceeding brought against it by the other Party under this Agreement in any such court.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.2</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Dispute Resolution</font>.&#160; Except as provided in <u>Section 3.3</u> and <u>Section 12.2.2</u>, any dispute
        arising out of or relating to this Agreement that has not been resolved at the JSC or otherwise under the terms of this Agreement, including the determination of the scope or applicability of this <u>Section 12.2</u> and the agreement to
        arbitrate, or any document or instrument delivered in connection herewith (a &#8220;<font style="font-weight: bold;">Dispute</font>&#8221;), shall be resolved pursuant to this <u>Section 12.2</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">12.2.1</font>&#160;&#160;&#160; <font style="font-weight: bold;">General</font>.&#160; Any Dispute shall first be referred to the Alliance Managers who will seek to resolve the issue
        within [***].&#160; If no resolution is obtained, the issue will be elevated to the Senior Officers of the Parties, who shall confer in good faith on the resolution of the issue.&#160; Without limiting <u>Section 12.5</u>, any final decision mutually agreed
        to by the Senior Officers shall be conclusive and binding on the Parties.&#160; If the Senior Officers are not able to agree on the resolution of any such issue within [***] (or such other period of time as mutually agreed by the Senior Officers) after
        such issue was first referred to them, then, except as otherwise set forth in <u>Section 12.2.2</u>, the Dispute shall be finally settled by arbitration as set forth in <u>Section 12.2.3</u>.&#160; Any dispute concerning the commencement of the
        arbitration shall be finally settled by the arbitrators.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">12.2.2</font>&#160;&#160; <font style="font-weight: bold;">Intellectual Property Disputes</font>.&#160; If a Dispute arises with respect to the validity, scope, enforceability,
        inventorship, or ownership of any Patent, trademark, or other intellectual property right, and such Dispute cannot be resolved in accordance with <u>Section 12.2.1</u>, then, unless otherwise agreed by the Parties in writing, such Dispute shall
        not be submitted to an arbitration proceeding in accordance with <u>Section 12.2.3</u> and instead either Party may initiate litigation in a court of competent jurisdiction, notwithstanding <u>Section 12.1</u>, in any country or other
        jurisdiction in which such rights apply; provided, however, that the Parties expressly waive any right to a jury trial in connection with disputes under this <u>Section 12.2.2</u>.&#160; In case of a Dispute between the Parties with respect to
        inventorship, the Parties shall jointly select an independent Third Party patent attorney registered before the United States Patent and Trademark Office who has appropriate professional credentials in the relevant subject matter and jurisdiction
        and submit such Dispute to the mutually-selected independent Third Party patent attorney for resolution by expert determination under United States patent law.&#160; The decision of such patent attorney with respect to inventorship shall be final, and
        the Parties agree to be bound by the decision and share equally the expenses of such patent attorney. If within [***] after the Senior Officers have failed to settle a Dispute regarding inventorship the Parties have not been able to mutually agree
        on the selection of an independent Third Party patent attorney for such expert determination, each Party shall appoint a patent counsel within [***] and both Party-appointed patent counsels shall, within [***] following the last appointment of a
        patent counsel by a Party, nominate the patent counsel who will conduct the expert determination under this <u>Section 12.2.2</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">12.2.3</font>&#160;&#160;&#160; <font style="font-weight: bold;">Arbitration</font>.&#160; Any arbitration shall take place in accordance with <u>Schedule 12.2.3</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">12.2.4</font>&#160; &#160; <font style="font-weight: bold;">Adverse Ruling</font>.&#160; Any determination pursuant to this <u>Section 12.2</u> that a Party is in material
        breach of its material obligations hereunder shall specify a (nonexclusive) set of actions to be taken to cure such material breach, if feasible.</div>
      <div>&#160;</div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">12.2.5</font>&#160;&#160; <font style="font-weight: bold;">Interim Relief</font>.&#160; Notwithstanding anything herein to the contrary in this <u>Section 12.2</u>, in the event
        that a Party reasonably requires relief on a more expedited basis than would be possible pursuant to the procedure set forth in this <u>ARTICLE 12</u>, such Party may seek interim or provisional relief, including a temporary restraining order,
        preliminary injunction, or other interim equitable relief concerning a Dispute, if necessary to protect the interests of such Party.&#160; This <u>Section 12.2.5</u> shall be specifically enforceable.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">12.2.6</font>&#160;&#160;&#160; <font style="font-weight: bold;">Pending Dispute</font>.&#160; During a pending Dispute, where this Agreement has not yet been terminated, each Party
        shall continue to perform in good faith its obligations under this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.3</font><font style="font-weight: bold;">&#160;&#160;&#160; Entire Agreement; Amendments</font><font style="font-weight: bold;">.</font>&#160; This Agreement and the Stock Purchase
        Agreement, including any schedules, constitute the entire, final, and complete agreement and understanding between the Parties with respect to its subject matter and replaces and supersedes all prior discussions and agreements between them with
        respect to the subject matter hereof.&#160; Each Party confirms that it is not relying on any representations or warranties of the other Party except as specifically set forth in this Agreement.&#160; No modification of any terms or conditions hereof shall
        be effective unless made in writing and signed by a duly authorized representative of each Party.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Severability</font><font style="color: rgb(0, 0, 0);">.&#160; If any provision of this Agreement is, becomes, or is
          deemed invalid or unenforceable by any court or other competent authority having jurisdiction, the remainder of this Agreement shall remain unimpaired and the Parties shall promptly negotiate in good faith to amend such invalid or unenforceable
          provision to conform to applicable laws so as to be valid and enforceable and best accomplish the original intent of the Parties.</font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.5</font>&#160;&#160;&#160;&#160;&#160; &#160; <font style="font-weight: bold;">Waiver and Non-Exclusion of Remedies</font><font style="color: rgb(0, 0, 0);">.&#160; Any term or condition of this
          Agreement may be waived at any time by the Party that is entitled to the benefit thereof, but no such waiver shall be effective unless it is in writing and signed by the Party waiving such term or condition.&#160; The waiver by either Party hereto of
          any right hereunder or of a breach by the other Party shall not be deemed a waiver of any other right hereunder or of any other breach by such other Party whether of a similar nature or otherwise.&#160; The rights and remedies provided herein are
          cumulative and do not exclude any other right or remedy provided by Applicable Law or otherwise available except as expressly set forth herein.</font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.6</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160; Force Majeure</font><font style="font-weight: bold;">.</font>&#160; Each Party shall be excused from liability for
        the failure or delay in performance of any obligation under this Agreement (other than a payment obligation) by reason of any event beyond such Party&#8217;s reasonable control, including acts of God, fire, flood, explosion, earthquake, epidemic or
        pandemic (including quarantine, lock-down, movement restriction or similar orders imposed by any governmental authority as of or after the Effective Date in connection therewith), or other natural forces, war, civil unrest, acts of terrorism,
        accident, destruction, or other casualty, any lack or failure of transportation facilities, any lack or failure of supply of raw materials or supplies, or any other event similar to those enumerated above.&#160; Such excuse from liability shall be
        effective to the extent and duration of the event(s) causing the failure or delay in performance and provided that the Party has not caused such event(s) to occur.&#160; Notice of a Party&#8217;s failure or delay in performance due to force majeure must be
        given to the other Party as soon as reasonably practicable after its occurrence.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.7</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160; Export Control</font><font style="font-weight: normal;">.</font>&#160; This Agreement is made subject to any
        restrictions concerning the export of products or technical information from the United States or other countries that may be imposed on the Parties from time to time.&#160; Each Party agrees that it will not export, directly or indirectly, any
        technical information acquired from the other Party under this Agreement or any products using such technical information to a location or in a manner that at the time of export requires an export license or other governmental approval, without
        first obtaining the written consent to do so from the appropriate agency or other governmental entity in accordance with Applicable Law.</div>
      <div>&#160;</div>
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      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.8</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Relationship of the Parties</font>.&#160; The relationship of the Parties is that of independent contractors, and
        nothing in this Agreement shall be construed to create a partnership, joint venture, franchise, employment, or agency relationship between the Parties.&#160; Neither Party shall be considered the agent of the other Party for any purpose whatsoever and
        neither Party has any authority to enter into any contract or assume any obligation for the other Party or to make any warranty or representation on behalf of the other Party.&#160; All persons employed by a Party shall be employees of such Party and
        not of the other Party and all costs and obligations incurred by reason of any such employment shall be for the account and expense of such Party.&#160; The Parties (and any successor, assignee, transferee, or Affiliate of a Party) shall (a) use
        commercially reasonable efforts to structure the arrangement and activities contemplated by this Agreement to avoid the arrangement contemplated by this Agreement being treated as a partnership that is engaged in a &#8220;United States trade or business&#8221;
        for United States tax purposes and (b) not treat or report the relationship between the Parties arising under this Agreement as a partnership for United States tax purposes without the prior written consent of the other Party unless required by a
        final &#8220;determination&#8221; as defined in Section 1313 of the United States Internal Revenue Code of 1986, as amended.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.9</font><font style="font-weight: bold;">&#160;</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Assignment</font>.&#160; Neither Party shall sell, transfer, assign,
        delegate, pledge, or otherwise dispose of, whether voluntarily, involuntarily, by operation of law or otherwise, this Agreement or any of its rights or obligations hereunder without the prior written consent of the other Party, such consent not to
        be unreasonably withheld, conditioned, or delayed; provided, that either Party may make such a transfer or assignment without the other Party&#8217;s consent (a) to its Affiliate, provided that if the entity to which this Agreement is assigned ceases to
        be an Affiliate of the assigning Party, this Agreement will be automatically assigned back to the assigning Party or its successor or (b) to a successor in interest by way of merger, consolidation, sale of stock, or sale of all or substantially all
        of its business to which this Agreement relates.&#160; Any purported assignment or delegation in violation of this <u>Section 12.9</u> shall be null and void.&#160; All validly assigned and delegated rights and obligations of the Parties hereunder shall be
        binding upon and inure to the benefit of and be enforceable by and against the successors and permitted assigns of BicycleTx or Ionis, as the case may be.&#160; The permitted assignee or transferee shall assume all obligations of its assignor or
        transferor under this Agreement.&#160; Without limiting the generality of the foregoing, the grant of rights set forth in this Agreement shall be binding upon any successor or permitted assignee of BicycleTx, and the obligations of Ionis (including all
        payment obligations) shall run in favor of any such successor or permitted assignee of BicycleTx&#8217;s benefits under this Agreement.&#160; Notwithstanding the foregoing, all rights to Know-How, Patents, materials, and other intellectual property Controlled
        by a Third Party permitted assignee of a Party (or any of such Third Party&#8217;s affiliates immediately prior to the closing of such assignment) immediately prior to such assignment shall be automatically excluded from the rights licensed or granted to
        the other Party under this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.10</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Notices</font>.&#160; Any notice required or permitted pursuant to this Agreement shall be in writing and delivered by
        personal delivery, overnight express courier service, electronic mail, facsimile transmission, or by certified or registered mail, return receipt requested, and shall be deemed given upon personal delivery, upon acknowledgement of receipt fax or
        electronic transmission, on the next Business Day after deposit if sent by overnight express courier service, or five days after deposit in the mail.&#160; Notices will be sent to the following addresses or such other address as either Party may specify
        in writing pursuant to this <u>Section 12.10</u>.&#160; BicycleTx will promptly provide notice information for the Gatekeeper once available.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;">If to BicycleTx, to:</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">BicycleTx Limited</div>
      <div style="text-align: justify; margin-left: 72pt;">Building 900</div>
      <div>
        <div style="text-align: justify; margin-left: 72pt;">Babraham Research Campus</div>
        <div style="text-align: justify; margin-left: 72pt;">Cambridge CB22 3AT, UK</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Attention: Chief Operating Officer</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;"> <br>
        </div>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 50 -</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; margin-left: 36pt;">with a copy (which shall not constitute notice) to:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">BicycleTx Limited</div>
      <div style="text-align: justify; margin-left: 72pt;">Building 900</div>
      <div style="text-align: justify; margin-left: 72pt;">Babraham Research Campus</div>
      <div style="text-align: justify; margin-left: 72pt;">Cambridge CB22 3AT, UK</div>
      <div style="text-align: justify; margin-left: 72pt;">Attention:&#160; General Counsel</div>
      <div>&#160;</div>
      <div style="text-align: justify; margin-left: 72pt;">Email:&#160; [***]</div>
      <div>&#160;</div>
      <div style="text-align: justify; margin-left: 36pt;">If to Ionis, to:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Ionis Pharmaceuticals, Inc.</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">2855 Gazelle Court</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Carlsbad, CA 92010</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">U.S.A.</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Attention: Executive Vice President, Research</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;">With a copy (which shall not constitute notice) to:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Attention: General Counsel</div>
      <div style="text-align: justify; text-indent: -36pt; margin-left: 108pt;">Email: [***]</div>
      <div><br>
      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.11</font><font style="font-weight: bold;">&#160;&#160;&#160;&#160; English Language</font><font style="font-weight: normal;">.</font>&#160; This Agreement shall be written and executed
        in, and all other communications under or in connection with this Agreement shall be in, the English language.&#160; Any translation into any other language shall not be an official version thereof, and in the event of any conflict in interpretation
        between the English version and such translation, the English version shall control.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; font-weight: bold;">12.12&#160;&#160;&#160;&#160;&#160; Performance by Affiliates<font style="font-weight: normal;">.</font>&#160; <font style="font-weight: normal;">Each Party may use one (1) or more of its Affiliates to
          perform its obligations and duties hereunder and such Affiliates are expressly granted certain rights herein to perform such obligations and duties; provided that each such Affiliate shall be bound by the corresponding obligations of such Party;
          and provided further that such Party, subject to an assignment to such Affiliate pursuant to <u>Section 12.9</u>, shall remain liable hereunder for the prompt payment and performance of its obligations hereunder. </font></div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 51 -</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.13</font>&#160;&#160;&#160; <font style="font-weight: bold;">Construction</font>.&#160; The terms of this Agreement represent the results of negotiations between the Parties and
        their representatives, each of which has been represented by counsel of its own choosing, and neither of which has acted under duress or compulsion, whether legal, economic or otherwise.&#160; Accordingly, the terms of this Agreement will be interpreted
        and construed in accordance with their usual and customary meanings, and each Party hereby waives the application in connection with the interpretation and construction of this Agreement of any rule of law to the effect that ambiguous or
        conflicting terms contained in this Agreement will be interpreted or construed against the Party whose attorney prepared the executed draft or any earlier draft of this Agreement.&#160; Except as otherwise explicitly specified to the contrary, (a)
        references to a Section, exhibit, appendix, or schedule means a Section of, or exhibit, appendix, or schedule to this Agreement, unless another agreement is specified, (b) the word &#8220;including&#8221; (in its various forms) means &#8220;including without
        limitation,&#8221; (c) the words &#8220;will&#8221; and &#8220;shall&#8221; have the same meaning, (d) references to a particular statute or regulation include all rules and regulations thereunder and any predecessor or successor statute, rules or regulation, in each case as
        amended or otherwise modified from time to time, (e) words in the singular or plural form include the plural and singular form, respectively, (f) references to a particular person include such person&#8217;s successors and assigns to the extent not
        prohibited by this Agreement, (g) unless otherwise specified, &#8220;$&#8221; is in reference to United States dollars, (h) the headings contained in this Agreement, in any exhibit, appendix, or schedule to this Agreement are for convenience only and will not
        in any way affect the construction of or be taken into consideration in interpreting this Agreement, (i) the word &#8220;or&#8221; means &#8220;and/or&#8221; unless the context dictates otherwise because the subjects of the conjunction are mutually exclusive, (j) the
        words &#8220;herein&#8221;, &#8220;hereof&#8221;, and &#8220;hereunder&#8221; and other words of similar import refer to this Agreement as a whole and not to any particular Section or other subdivision, and (k) all references to days mean calendar days, unless otherwise specified.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.14</font>&#160;&#160;&#160; <font style="font-weight: bold;">Schedules</font>.&#160; In the event of any inconsistencies between this Agreement and any schedules or other
        attachments hereto, the terms of this Agreement shall control.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.15</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Further Assurance</font>.&#160; Each Party agrees to execute, acknowledge, and deliver such further instruments, and
        to do all such other acts, as may be necessary or appropriate in order to carry out the purposes and intent of this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.16</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">No Benefit to Third Parties</font>.&#160; Except as provided in <u>ARTICLE 10</u>, covenants and agreements set forth
        in this Agreement are for the sole benefit of the Parties hereto and their successors and permitted assigns, and they shall not be construed as conferring any rights on any other Persons.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">12.17</font>&#160;&#160;&#160; <font style="font-weight: bold;">Counterparts</font>.&#160; This Agreement may be executed in one or more counterparts in original, facsimile, PDF, or
        other electronic format, each of which shall be an original, and all of which together shall constitute one instrument.</div>
      <div>&#160;</div>
      <div style="text-align: center;"><font style="font-weight: bold;">[</font><font style="font-style: italic;">SIGNATURE PAGE FOLLOWS</font><font style="font-weight: bold;">]</font></div>
      <div><br>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div id="DSPFPageNumberArea" style="text-align: center;"><font id="DSPFPageNumber" style="font-size: 8pt; font-weight: normal; font-style: normal;">- 52 -</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify;"><font style="font-weight: bold;">THIS COLLABORATION AND LICENSE AGREEMENT</font> is executed by the authorized representatives of the Parties as of the Effective Date.</div>
      <div><br>
      </div>
      <table cellspacing="0" cellpadding="0" border="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="z726f183212ee46f288b1e71ddc6dcbbc">

          <tr>
            <td colspan="2" style="vertical-align: top;">
              <div style="text-align: justify; font-weight: bold;">BICYCLETX LIMITED</div>
            </td>
            <td colspan="2" style="vertical-align: top;">
              <div style="text-align: justify; font-weight: bold;">IONIS PHARMACEUTICALS, INC.</div>
            </td>
          </tr>
          <tr>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 5%; vertical-align: top;">
              <div style="text-align: justify;">By:</div>
            </td>
            <td style="width: 45%; vertical-align: top;">
              <div style="text-align: justify;"><u>/s/Kevin Lee</u></div>
            </td>
            <td style="width: 5%; vertical-align: top;">
              <div style="text-align: justify;">By:</div>
            </td>
            <td style="width: 45%; vertical-align: top;">
              <div style="text-align: justify;"><u>/s/Brett Monia</u></div>
            </td>
          </tr>
          <tr>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 5%; vertical-align: top;">
              <div style="text-align: justify;">Name:</div>
            </td>
            <td style="width: 45%; vertical-align: top;">
              <div style="text-align: justify;"><u>Kevin Lee</u></div>
            </td>
            <td style="width: 5%; vertical-align: top;">
              <div style="text-align: justify;">Name:</div>
            </td>
            <td style="width: 45%; vertical-align: top;">
              <div style="text-align: justify;"><u>Brett Monia</u></div>
            </td>
          </tr>
          <tr>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 5%; vertical-align: top;">
              <div style="text-align: justify;">Title:</div>
            </td>
            <td style="width: 45%; vertical-align: top;">
              <div style="text-align: justify;">CEO</div>
            </td>
            <td style="width: 5%; vertical-align: top;">
              <div style="text-align: justify;">Title:</div>
            </td>
            <td style="width: 45%; vertical-align: top;">
              <div style="text-align: justify;">CEO</div>
            </td>
          </tr>

      </table>
      <div><br>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">53</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: center; font-weight: bold;"><u>Schedule 1.22</u></div>
      <div>&#160;</div>
      <div style="text-align: center;">[***]</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">54</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: center; font-weight: bold;"><u>Schedule 9.2.1</u></div>
      <div>&#160;</div>
      <div style="text-align: center;">[***]</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">55</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: center; font-weight: bold;"><u>Schedule 12.2.3</u></div>
      <div>&#160;</div>
      <div style="text-align: center;">[***]</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">56</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">Exhibit 6.2</div>
      <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;"> <br>
      </div>
      <div style="text-align: center; font-weight: bold;">SHARE PURCHASE AGREEMENT</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold; font-variant: small-caps;">This share Purchase Agreement</font><font style="font-weight: bold;">&#160;</font>(&#8220;<font style="font-weight: bold; font-style: italic;">Agreement</font>&#8221;)

        is entered into as of _______, 2021 (the &#8220;<font style="font-weight: bold; font-style: italic;">Execution Date</font>&#8221;), by and between<font style="font-weight: bold;"> Bicycle Therapeutics plc</font>, a company incorporated under the laws of
        England and Wales having an office at Building 900, Babraham Research Campus, Cambridge, United Kingdom CB22 3AT (the &#8220;<font style="font-weight: bold; font-style: italic;">Company</font>&#8221;), and <font style="font-weight: bold;">Ionis
          Pharmaceuticals, Inc. </font>a Delaware corporation with a principal place of business at 2855 Gazelle Court, Carlsbad, California 92010, USA (the &#8220;<font style="font-weight: bold; font-style: italic;">Purchaser</font>&#8221;).&#160; The capitalized terms
        used herein and not otherwise defined have the meanings given to them in <u>Appendix </u><font style="font-variant: small-caps;"><u>1</u></font>.</div>
      <div>&#160;</div>
      <div style="text-align: center; font-variant: small-caps; font-weight: bold;">Recitals</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;">BicycleTx Limited (&#8220;<font style="font-weight: bold; font-style: italic;">BicycleTx</font>&#8221;), an affiliate of the Company, and Purchaser entered into that certain Evaluation and Option Agreement
        dated as of December 31, 2020 (the &#8220;<font style="font-weight: bold; font-style: italic;">Option Agreement</font>&#8221;) pursuant to which BicycleTx granted to the Purchaser an exclusive option to obtain an exclusive license under BicycleTx&#8217;s technology
        to research, develop, manufacture, and commercialize products incorporating TfR1 Bicycles (as defined in the Collaboration Agreement (as defined below)) and Purchaser has exercised such option in accordance with the terms of the Option Agreement.&#160;
        Pursuant to the exercise of such option and contemporaneously with execution of this Agreement, BicycleTx and Purchaser are entering into that certain Collaboration and Licensing Agreement (the &#8220;<font style="font-weight: bold; font-style: italic;">Collaboration








          Agreement</font>&#8221;).</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;">Pursuant to the Option Agreement, and as partial consideration for the Collaboration Agreement, the Company has agreed to sell, and the Purchaser has agreed to purchase, ordinary shares, nominal
        value &#163;0.01 per share, of the Company&#160; (the &#8220;<font style="font-weight: bold; font-style: italic;">Ordinary Shares</font>&#8221;), subject to and in accordance with the terms and provisions of this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: center; font-variant: small-caps; font-weight: bold;">Agreement</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;">For good and valuable consideration, the Purchaser and the Company agree as follows:</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z87d824e8ff504ee5aad5f15f5ba224b2">

          <tr>
            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">1.</td>
            <td style="width: auto; vertical-align: top; text-align: justify;">
              <div>Sale and Purchase of Ordinary Shares</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.1</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Purchase of </font><font style="font-weight: bold;">Ordinary Shares</font>.&#160; Subject to the terms and conditions
        of this Agreement, at the Closing, the Company will issue and sell to the Purchaser, and the Purchaser will purchase from the Company, a number of&#160; Ordinary Shares equal to $11,000,000 divided by the Share Value, rounded down to the nearest whole
        share (such Ordinary Shares, the &#8220;<font style="font-weight: bold; font-style: italic;">Shares</font>&#8221;).&#160; The aggregate purchase price shall equal the number of Shares multiplied by the Share Value, rounded to the nearest cent (the &#8220;<font style="font-weight: bold; font-style: italic;">Purchase Price</font>&#8221;), <font style="font-style: italic;">provided, however</font>, that if the number of Shares calculated in accordance with the preceding clause of this <u>Section 1.1</u>
        exceeds the Share Cap, the Company will issue and sell to Purchaser, and the Purchaser will purchase from the Company, the number of Ordinary Shares equal to the Share Cap, at the Share Value, and shall pay to the Company in cash the difference
        between (i) $11,000,000 and (ii) the product of the Share Value multiplied by the Share Cap (any such amount, the &#8220;<font style="font-weight: bold; font-style: italic;">Closing Cash</font>&#8221;<font style="font-weight: bold;">)</font>.&#160; In the event the
        Share Cap is applicable, the term &#8220;<font style="font-weight: bold; font-style: italic;">Shares</font>&#8221; shall refer to the number of Ordinary Shares equal to the Share Cap, and the term &#8220;<font style="font-weight: bold; font-style: italic;">Purchase
          Price</font>&#8221; shall refer to the product of the Share Value and the Share Cap.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Payment</font>.&#160; At the Closing, Purchaser will pay the Purchase Price and the Closing Cash, if any, by wire
        transfer of immediately available funds in accordance with wire instructions, which instructions will have been provided by the Company to Purchaser at least three (3) Business Days prior to the Closing, and the Company will cause its registrar and
        transfer agent to issue such Shares in restricted book entry form registered in the name of the Purchaser.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">57</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">1.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Closing</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Closing</font>.&#160; The closing of the transaction contemplated by <u>Section 1.1</u> (the &#8220;<font style="font-weight: bold; font-style: italic;">Closing</font>&#8221;) will be held at the offices of the Company or through the electronic exchange of documents and signatures, as promptly as practicable and upon the satisfaction of the closing
        conditions set forth in <u>Section 6</u> hereof, and in no event more than ten (10) Business Days after the Execution Date.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<u>Closing Deliverables</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;"><font style="font-weight: bold;">(i)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#160;&#160; At the Closing, the Company will deliver to Purchaser:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 144pt;"><font style="font-weight: bold;">&#160;(1)</font>&#160;&#160;&#160;&#160; a duly executed cross-receipt in form and substance reasonably satisfactory to each party (the &#8220;<font style="font-weight: bold; font-style: italic;">Cross-Receipt</font>&#8221;);</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 144pt;"><font style="font-weight: bold;">&#160;(2)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; a certificate in form and substance reasonably satisfactory to Purchaser and duly executed on behalf of the Company by an authorized officer of
        the Company, certifying that the conditions to the Closing set forth in <u>Sections 6.2(a)</u>, <u>(b)</u>, <u>(c)</u> and <u>(d)</u> of this Agreement have been fulfilled; and</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 144pt;"><font style="font-weight: bold;">&#160;(3)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; a certificate of the secretary of the Company dated as of the Closing Date certifying that attached thereto is a true and complete copy of all
        resolutions adopted by the Board authorizing the execution, delivery and performance of this Agreement and the transactions contemplated herein and that all such resolutions are in full force and effect and are all the resolutions adopted in
        connection with the transactions contemplated hereby as of the Closing Date.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 108pt;"><font style="font-weight: bold;">(ii)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; &#160;&#160; At the Closing, Purchaser will deliver to the Company:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 144pt;"><font style="font-weight: bold;">&#160;(1)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;a duly-executed Cross-Receipt; and</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 144pt;"><font style="font-weight: bold;">&#160;(2)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; a certificate in form and substance reasonably satisfactory to the Company and duly executed on behalf of Purchaser by an authorized officer of
        Purchaser, certifying that the conditions to the Closing set forth in <u>Section 6.1(b)</u> and <u>(c)</u> of this Agreement have been fulfilled.</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9d99f6fac8cb41a49aad528c6dd12523">

          <tr>
            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">2.</td>
            <td style="width: auto; vertical-align: top;">
              <div>Representations and Warranties of the Company</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;">Except as otherwise specifically contemplated by this Agreement, the Company hereby represents and warrants to Purchaser that:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Private Placement</font>.&#160; Neither the Company nor any Person acting on its behalf, has, directly or
        indirectly, made any offers or sales of any security or solicited any offers to buy any security, under any circumstances that would require registration of the Shares under the Securities Act.&#160; Subject to the accuracy of the representations made
        by Purchaser in <u>Section 3</u>, the Shares will be issued and sold to Purchaser in compliance with applicable exemptions from the registration and prospectus delivery requirements of the Securities Act and the registration and qualification
        requirements of all applicable securities Laws of the states of the United States.&#160; The Company has not engaged any brokers, finders or agents, or incurred, or will incur, directly or indirectly, any liability for brokerage or finder&#8217;s fees or
        agents&#8217; commissions or any similar charges in connection with this Agreement and the transactions contemplated hereby.</div>
      <div>&#160;</div>
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        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">58</font></div>
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      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Corporate Power and Qualification</font>.&#160; The Company has full corporate power and authority to conduct its
        business as currently conducted.&#160; The Company is duly qualified to do business and is in good standing in every jurisdiction in which the nature of the business conducted by it or property owned by it makes such qualification necessary, except
        where the failure to be so qualified or in good standing, as the case may be, would not reasonably be expected to have a Material Adverse Effect on the Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Authorization; Enforcement</font>.&#160; The Company has all requisite corporate power and authority to enter into
        and to perform its obligations under this Agreement, to consummate the transactions contemplated hereby and to issue the Shares in accordance with the terms and conditions hereof.&#160; The execution, delivery and performance of this Agreement by the
        Company and the consummation by it of the transactions contemplated hereby (including the issuance of the Shares at the Closing in accordance with the terms and conditions hereof) have been duly authorized by the Board and no further consent or
        authorization of the Company, the Board, or its shareholders is required.&#160; This Agreement has been duly executed by the Company and constitutes a legal, valid and binding obligation of the Company enforceable against the Company in accordance with
        its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, or moratorium or similar Laws affecting creditors&#8217; and contracting parties&#8217; rights generally.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Issuance of Shares</font>.&#160; The Shares, upon issuance in accordance with the terms of this Agreement, will be
        validly issued, fully paid and non-assessable and will not be subject to preemptive rights or other similar rights of shareholders of the Company.</div>
      <div>&#160;</div>
      <div style="text-indent: 36pt;"><font style="font-weight: bold;">2.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">SEC Documents, Financial Statements</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;The American Depositary Shares are registered pursuant to Section 12(b) or 12(g) of the Exchange Act.&#160; The Company has delivered or made
        available (by filing on the SEC&#8217;s electronic data gathering and retrieval system (EDGAR)) to Purchaser complete copies of its most recent Annual Report on Form 10-K and each subsequent Quarterly Report on Form 10-Q, and any report on Form 8-K, in
        each case filed with the SEC prior to the Execution Date (the &#8220;<font style="font-weight: bold; font-style: italic;">SEC Documents</font>&#8221;).&#160; As of its date, each SEC Document complied in all material respects with the requirements of the Exchange
        Act, and other Laws applicable to it, and, as of its date, such SEC Document did not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements
        therein, in light of the circumstances under which they were made, not misleading.<font style="font-weight: bold;">&#160; </font>No inquiries or any other investigation conducted by or on behalf of Purchaser or its representatives or counsel will
        modify, amend or affect Purchaser&#8217;s right to rely on the truth, accuracy and completeness of the SEC Documents and the Company&#8217;s representations and warranties contained in this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160; There are no outstanding or unresolved comments in comment letters received from the SEC or its staff.</div>
      <div>&#160;</div>
      <div style="text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;As of the Execution Date, other than the transactions that are the subject of this Agreement and the Collaboration Agreement, no material fact or circumstance exists
        that would be required to be disclosed in a current report on Form 8-K or in a registration statement filed under the Securities Act, were such a registration statement filed on the date hereof, that has not been disclosed in an SEC Document.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">59</font></div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(d)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; The financial statements, together with the related notes, of the Company included in the SEC Documents comply as to form in all material respects
        with all applicable accounting requirements and the published rules and regulations of the SEC and all other applicable rules and regulations with respect thereto.&#160; Such financial statements, together with the related notes and schedules, have been
        prepared in accordance with GAAP applied on a consistent basis during the periods involved (except (i) as may be otherwise indicated in such financial statements or the notes thereto or (ii) in the case of unaudited interim statements, to the
        extent they may not include footnotes or may be condensed or summary statements), and fairly present in all material respects the financial condition of the Company and its consolidated subsidiaries as of the dates thereof and the results of
        operations and cash flows for the periods then ended (subject, in the case of unaudited statements, to normal year-end audit adjustments).</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(e)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; The American Depositary Shares are listed on Nasdaq, and the Company has taken no action designed to, or that to its knowledge is likely to have
        the effect of, terminating the registration of the American Depositary Shares under the Exchange Act or delisting the American Depositary Shares from Nasdaq.&#160; As of the Execution Date, the Company has not received any notification that, and has no
        knowledge that, the SEC or Nasdaq is contemplating terminating such registration or listing.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Internal Controls; Disclosure Controls and Procedures</font>. <font style="font-weight: bold;">&#160;</font>The
        Company maintains internal control over financial reporting as defined in Rule 13a-15(f) under the Exchange Act.&#160; The Company has implemented the &#8220;disclosure controls and procedures&#8221; (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange
        Act) required in order for the principal executive officer and principal financial officer of the Company to engage in the review and evaluation process mandated by the Exchange Act, and is in compliance with such disclosure controls and procedures
        in all material respects.&#160; Each of the principal executive officer and the principal financial officer of the Company has made all certifications required by Sections 302 and 906 of the Sarbanes-Oxley Act of 2002 with respect to all reports,
        schedules, forms, statements and other documents required to be filed by the Company with the SEC.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Voting Rights</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;All of the Ordinary Shares are entitled to one (1) vote per share.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; Except as described or referred to in the SEC Documents, as of the Execution Date, there were not: (i) any outstanding equity securities, options,
        warrants, rights (including conversion or preemptive rights) or other agreements pursuant to which the Company is or may become obligated to issue, sell or repurchase any ordinary shares, ADSs or any other securities of the Company other than
        equity securities that may have been granted pursuant to its equity incentive plans, which plans are described in the SEC Documents; or (ii) any restrictions on the transfer of share capital of the Company other than pursuant to applicable U.K. or
        U.S. federal or state securities Laws or as set forth in this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;The Company is not a party to or subject to any agreement or understanding relating to the voting of shares of or other securities of&#160; the
        Company or the giving of written consents by a shareholder or director of the Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.8</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">No Conflicts; Government Consents and Permits</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; The execution, delivery and performance of this Agreement by the Company and the consummation by the Company of the transactions contemplated
        hereby (including the issuance of the Shares) will not (i) conflict with or result in a violation of any provision of the Company&#8217;s Articles of Association, as in effect on the date hereof, (ii) violate or conflict with, or result in a breach of
        any provision of, or constitute a default under, any agreement, indenture, or instrument to which the Company is a party, or (iii) subject to Section 2.8(b), result in a violation of any Law (including United States federal, state and U.K.
        securities Laws and regulations and regulations of any self-regulatory organizations) applicable to the Company, except in the case of <u>clauses (ii)</u> and <u>(iii)</u> only, for such conflicts, breaches, defaults, and violations as would not
        reasonably be expected to have, a Material Adverse Effect on the Company or result in a liability for Purchaser.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">60</font></div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; The Company is not required to obtain any consent, authorization or order of, or make any filing or registration with, any court or governmental
        agency or any regulatory agency or self-regulatory organization in order for it to execute, deliver or perform any of its obligations under this Agreement in accordance with the terms and conditions hereof, or to issue and sell the Shares in
        accordance with the terms and conditions hereof other than such as have been made or obtained, and except for any post-closing filings required to be made under federal, national or state securities Laws.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.9</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Litigation</font>.&#160; Other than as set forth in the SEC Documents filed prior to the Execution Date, there is no
        action, suit, proceeding or investigation pending (of which the Company has received notice or otherwise has knowledge) or, to the Company&#8217;s knowledge, threatened, against the Company or that the Company intends to initiate, except where such
        action, suit, proceeding or investigation, as the case may be, and would not reasonably be expected to have a Material Adverse Effect.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.10</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Licenses and Other Rights; Compliance with Laws</font>.&#160; The Company has all franchises, permits, licenses and
        other rights and privileges (&#8220;<font style="font-weight: bold; font-style: italic;">Permits</font>&#8221;) necessary to permit it to own its properties and to conduct its business as presently conducted and is in compliance thereunder, except where the
        failure to be in compliance would not reasonably be expected to have a Material Adverse Effect.&#160; The Company has not taken any action that would interfere with its ability to renew all such Permit(s), except where the failure to renew such
        Permit(s) would not reasonably be expected to have, a Material Adverse Effect.&#160; The Company is and has been in compliance with all Laws applicable to its business, properties and assets, except where the failure to be in compliance has not had and
        would not reasonably be expected to have a Material Adverse Effect.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.11</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Intellectual Property</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; Other than as set forth in the SEC Documents filed prior to the Execution Date, the Intellectual Property that is owned by the Company or its
        subsidiaries is owned free from any Liens.&#160; All of the Company&#8217;s material Intellectual Property Licenses are in full force and effect in accordance with their terms, are free of any Liens, and, to the Company&#8217;s knowledge, neither the Company, nor
        any other party thereto, is in material breach of any such material Intellectual Property License.&#160; To the Company&#8217;s knowledge, no event has occurred that with notice or lapse of time or both (i) would constitute a breach or default of any such
        material Intellectual Property License, (ii) would result in the termination thereof, or (iii) would cause or permit the acceleration or other change of any right or obligation or the loss of any benefit thereunder by the Company or its
        subsidiaries, except, in the case of each of <u>clauses (i)</u> through <u>(iii)</u>, as would not reasonably be expected to have a Material Adverse Effect.</div>
      <div>&#160;</div>
      <div style="text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Except as set forth in the SEC Documents, there is no legal claim or demand of any Person or any proceeding that is pending or threatened in writing, (i) challenging
        the right of the Company in respect of any Intellectual Property of the Company, or (ii) claiming that any default exists under any Intellectual Property License, except, in the case of clauses (i) and (ii) above, where any such claim, demand or
        proceeding has not had, and would notreasonably be expected to have, a Material Adverse Effect.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">61</font></div>
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; Except as set forth in the SEC Documents: (i) the Company or one of its subsidiaries owns, free and clear of any Lien, or, to the Company&#8217;s
        knowledge, has a valid license, or an enforceable right to use, as it is used or held for use, all U.S. and non-U.S. patents, trade secrets, know-how, trademarks, service marks, copyrights, and other proprietary and Intellectual Property rights,
        and all grants and applications with respect to the foregoing (collectively, the &#8220;<font style="font-weight: bold; font-style: italic;">Proprietary Rights</font>&#8221;) necessary for the conduct of the Company&#8217;s business, except where the failure to own
        or have any of the foregoing would not reasonably be expected to have a Material Adverse Effect (such Proprietary Rights owned by or licensed to the Company collectively, the &#8220;<font style="font-weight: bold; font-style: italic;">Company Rights</font>&#8221;);








        and (ii) the Company and its subsidiaries have taken reasonable measures to protect the Company Rights, consistent with prudent commercial practices in the biotechnology industry, except where failure to take such measures has not had, and would
        not reasonably be expected to have, a Material Adverse Effect.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.12</font>&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Health Care Matters</font>.&#160; The Company: (i) has operated and currently operates its business in compliance in
        all material respects with applicable provisions of the Health Care Laws (as defined below) of the Food and Drug Administration (&#8220;<font style="font-weight: bold; font-style: italic;">FDA</font>&#8221;), the Department of Health and Human Services and any
        comparable state, foreign or other regulatory authority to which they are subject (collectively, the &#8220;<font style="font-weight: bold; font-style: italic;">Applicable Regulatory Authorities</font>&#8221;) applicable to the ownership, testing, development,
        manufacture, packaging, processing, use, sale, promotion, distribution, storage, import, export or disposal of any of the Company&#8217;s product candidates or any product manufactured or distributed by the Company; (ii) has not received any FDA Form
        483, written notice of adverse finding, warning letter, untitled letter or other correspondence or written notice from any court or arbitrator or the Applicable Regulatory Authorities alleging or asserting non-compliance with any licenses,
        certificates, approvals, clearances, exemptions, authorizations, permits and supplements or amendments thereto required by any such Health Care Laws (&#8220;<font style="font-weight: bold; font-style: italic;">Regulatory Authorizations</font>&#8221;); (iii)
        possesses all Regulatory Authorizations required to conduct its business as currently conducted and such Regulatory Authorizations are valid and in full force and effect and the Company is not in violation, in any material respect, of any term of
        any such Regulatory Authorizations; (iv) has not received notice of any claim, action, suit, proceeding, hearing, enforcement, investigation, arbitration or other action from any court or arbitrator or the Applicable Regulatory Authorities or any
        other third party alleging that any product operation or activity is in material violation of any Health Care Laws and has no knowledge that the Applicable Regulatory Authorities or any other third party is considering any such claim, litigation,
        arbitration, action, suit, investigation or proceeding; (v) has not received notice that any of the Applicable Regulatory Authorities has taken, is taking or intends to take action to limit, suspend, modify or revoke any material Regulatory
        Authorizations and has no knowledge that any of the Applicable Regulatory Authorities is considering such action; (vi) has filed, obtained, maintained or submitted all material reports, documents, forms, notices, applications, records, claims,
        submissions and supplements or amendments as required by any Health Care Laws or Regulatory Authorizations and that all such reports, documents, forms, notices, applications, records, claims, submissions and supplements or amendments were
        materially complete and correct on the date filed (or were materially corrected or supplemented by a subsequent submission); (vii) is not a party to and does not have any ongoing reporting obligations pursuant to any corporate integrity agreements,
        deferred prosecution agreements, monitoring agreements, consent decrees, settlement orders, plans of correction or similar agreements with or imposed by any Applicable Regulatory Authority; and (viii) along with its employees, officers and
        directors, has not been excluded, disqualified, suspended or debarred from participation in any government health care program or human clinical research or, to the Company&#8217;s knowledge, subject to a governmental inquiry, investigation, proceeding,
        or other similar action that could reasonably be expected to result in debarment, suspension, disqualification or exclusion.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">62</font></div>
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      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.13</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Clinical Trials</font>.&#160; None of the Company&#8217;s product candidates has received marketing approval from any
        Applicable Regulatory Authority.&#160; All clinical and pre-clinical studies and trials conducted by or on behalf of or sponsored by the Company, or in which the Company has participated, with respect to the Company&#8217;s product candidates, including any
        such studies and trials that are described in the SEC Documents, or the results of which are referred to in the SEC Documents, as applicable (collectively, &#8220;<font style="font-weight: bold; font-style: italic;">Company Trials</font>&#8221;), were, and if
        still pending are, to the Company&#8217;s knowledge, being conducted in all material respects in accordance with all applicable Health Care Laws of the Applicable Regulatory Authorities, including the FDA&#8217;s current Good Clinical Practices and Good
        Laboratory Practices, standard medical and scientific research procedures and any applicable rules, regulations and policies of the jurisdiction in which such trials and studies are being conducted.&#160; The descriptions in the SEC Documents of the
        results of any Company Trials are accurate and complete descriptions in all material respects and fairly present the data derived therefrom as of the date of such SEC Documents.&#160; The Company has no knowledge of any other studies or trials not
        described in the SEC Documents, the results of which are inconsistent with or call into question the results described or referred to in the SEC Documents.&#160; The Company has not received any written notices, correspondence or other communications
        from the Applicable Regulatory Authorities or any other governmental entity or any institutional review board (&#8220;<font style="font-weight: bold; font-style: italic;">IRB</font>&#8221;) or independent ethics committee (&#8220;<font style="font-weight: bold; font-style: italic;">IEC</font>&#8221;) requiring or threatening the termination, material modification or suspension of Company Trials, other than ordinary course communications with respect to modifications in connection with the design and
        implementation of such studies or trials, and, to the Company&#8217;s knowledge, there are no reasonable grounds for the same.&#160; No investigational new drug application or comparable submission filed by or on behalf of the Company with the FDA has been
        terminated or suspended by the FDA or any other Applicable Regulatory Authority.&#160; The Company has obtained (or caused to be obtained) informed consent by or on behalf of each human subject who participated in a Company Trial, and the Company has
        obtained (or caused to be obtained) applicable IRB or IEC approvals for each Company Trial.&#160; To the Company&#8217;s knowledge, none of the Company Trials involved any investigator who has been disqualified as a clinical investigator or has been found by
        the FDA to have engaged in scientific misconduct.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.14</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Absence of Certain Changes</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Except as disclosed in the SEC Documents filed prior to the Execution Date, since March 31, 2021, no change or event has occurred, except where
        such change or event has not had, and would not reasonably be expected to have, a Material Adverse Effect on the Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Except as set forth in the SEC Documents filed prior to the Execution Date or as contemplated by this Agreement or the Collaboration Agreement,
        since December 31, 2020, the Company has not (i) declared or paid any dividends, or authorized or made any distribution upon or with respect to any class or series of its share capital, or (ii) sold, exchanged or otherwise disposed of any of its
        material assets or rights.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Since March 31, 2021, the Company has not admitted in writing its inability to pay its debts generally as they become due, filed or consented to
        the filing against it of a petition in bankruptcy or a petition to take advantage of any insolvency act, made an assignment for the benefit of creditors, consented to the appointment of a receiver for itself or for the whole or any substantial part
        of its property, or had a petition in bankruptcy filed against it, been adjudicated a bankrupt, or filed a petition or answer seeking reorganization or arrangement under the federal bankruptcy Laws or any other Laws of the United States or any
        other jurisdiction.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.15</font>&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Not an Investment Company</font>.&#160; The Company is not, and after receipt of the Purchase Price, will not be, an
        &#8220;investment company&#8221; as defined in the Investment Company Act of 1940, as amended.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.16</font>&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Critical Technology</font>.&#160; The Company does not produce, design, test, manufacture, fabricate, or develop one
        or more &#8220;critical technologies&#8221; within the meaning of the Defense Production Act of 1950, as amended, including all implementing regulations thereof.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">2.17</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">No Integration</font>.&#160; The Company has not, directly or through any agent, sold, offered for sale, solicited
        offers to buy or otherwise negotiated in respect of, any security (as defined in the Securities Act) that is or will be integrated with the Shares sold pursuant to this Agreement in a manner that would require the registration of the Shares under
        the Securities Act.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">63</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z56fe4ae8b1624655be1c677880928da6">

          <tr>
            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">3.</td>
            <td style="width: auto; vertical-align: top;">
              <div>Representations and Warranties of Purchaser</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;">Except as otherwise specifically contemplated by this Agreement, Purchaser hereby represents and warrants to the Company that:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Authorization; Enforcement</font>.&#160; Purchaser has the requisite corporate or other similar power and authority
        to enter into this Agreement and to consummate the transactions contemplated hereby.&#160; Purchaser has taken all necessary corporate or other similar action to authorize the execution, delivery and performance of this Agreement.&#160; Upon the execution
        and delivery of this Agreement, this Agreement will constitute a valid and binding obligation of Purchaser enforceable against Purchaser in accordance with its terms and conditions, except as enforceability may be limited by applicable bankruptcy,
        insolvency, reorganization, moratorium or similar Laws affecting creditors&#8217; and contracting parties&#8217; rights generally.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">No Conflicts; Government Consents and Permits.</font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; The execution, delivery and performance of this Agreement by Purchaser and the consummation by Purchaser of the transactions contemplated hereby
        (including the purchase of the Shares) will not (i) conflict with or result in a violation of any provision of Purchaser&#8217;s memorandum and articles of association or equivalent organizational documents, (ii) violate or conflict with, or result in a
        breach of any provision of, or constitute a default under, any agreement, indenture, or instrument to which Purchaser is a party, or (iii) result in a violation of any Law (including U.S. federal and state securities Laws and regulations and
        regulations of any self-regulatory organizations) applicable to Purchaser, except in the case of <u>clauses (ii)</u> and <u>(iii)</u> only, for such conflicts, breaches, defaults, and violations as have not had, and would not reasonably be
        expected to have, a Material Adverse Effect on Purchaser or result in a liability for the Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Purchaser is not required to obtain any consent, authorization or order of, or make any filing or registration with, any court or governmental
        agency or any regulatory agency or self-regulatory organization in order for it to execute, deliver or perform any of its obligations under this Agreement in accordance with the terms and conditions hereof, or to purchase the Shares in accordance
        with the terms and conditions hereof, other than such as have been made or obtained, except if and to the extent applicable for compliance with any requirements of the HSR Act and any other antitrust Law.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Investment Purpose</font>.&#160; Purchaser is purchasing the Shares for its own account and not with a present view
        toward the public distribution thereof and has no arrangement or understanding with any other Persons regarding the distribution of such Shares except as would not result in a violation of the Securities Act.&#160; Without limiting <u>Section 5.1</u>
        and <u>Section 5.2</u>, Purchaser will not, directly or indirectly, offer, sell, pledge, transfer or otherwise dispose of (or solicit any offers to buy, purchase or otherwise acquire or take a pledge of) any of the Shares except in accordance with
        the Securities Act.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Reliance on Exemptions</font>.&#160; Purchaser understands that the Company intends for the Shares to be offered and
        sold to it in reliance upon specific exemptions from the registration requirements of United States federal and state securities Laws and that the Company is relying upon the truth and accuracy of, and Purchaser&#8217;s compliance with, the
        representations, warranties, agreements, acknowledgments and understandings of Purchaser set forth herein in order to determine the availability of such exemptions and the eligibility of Purchaser to acquire the Shares.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">64</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Accredited Investor; Access to Information.</font>&#160; Purchaser is an &#8220;accredited investor&#8221; as defined in
        Regulation D under the Securities Act and is knowledgeable, sophisticated and experienced in making, and is qualified to make, decisions with respect to investments in shares presenting an investment decision like that involved in the purchase of
        the Shares.&#160; Purchaser has been furnished with materials relating to the offer and sale of the Shares that have been requested by Purchaser, including the SEC Documents, and Purchaser has had the opportunity to review the SEC Documents.&#160; Purchaser
        has been afforded the opportunity to ask questions of the Company.&#160; Neither such inquiries nor any other investigation conducted by or on behalf of Purchaser or its representatives or counsel will modify, amend or affect Purchaser&#8217;s right to rely
        on the truth, accuracy and completeness of the SEC Documents and the Company&#8217;s representations and warranties contained in this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.6</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Restricted Securities</font>.&#160; Purchaser understands that the Shares will be characterized as &#8220;restricted
        securities&#8221; under the U.S. federal securities Laws inasmuch as they are being acquired from the Company in a private placement under Section 4(a)(2) of the Securities Act and that under such Laws and applicable regulations such Shares may be resold
        without registration under the Securities Act only in certain limited circumstances.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">3.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Governmental Review</font>.&#160; Purchaser understands that no U.S. federal or state or U.K. agency or any other
        Governmental Authority has passed upon or made any recommendation or endorsement of the Shares or an investment therein.</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zf48d43b954ba47038819b96fed96e12d">

          <tr>
            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">4.</td>
            <td style="width: auto; vertical-align: top;">
              <div>Standstill Agreement</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.1</font>&#160;&#160;&#160;&#160;&#160; During the period commencing on the date of this Agreement (the &#8220;<font style="font-weight: bold; font-style: italic;">Standstill Commencement Date</font>&#8221;)








        and ending on the 18-month anniversary of the Standstill Commencement Date (the &#8220;Standstill Period&#8221;), neither Purchaser, any of Purchaser&#8217;s controlled Affiliates nor any of Purchaser&#8217;s representatives acting on behalf of or in concert with
        Purchaser will, in any manner, directly or indirectly:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;make, effect, initiate, cause or participate in (i) any acquisition of beneficial ownership of any securities of the Company or any securities
        (including derivatives thereof) of any subsidiary or other controlled Affiliate of the Company, (ii) any acquisition of all or a material portion of the assets of the Company and its subsidiaries on a consolidated basis or (iii) any tender offer,
        exchange offer, merger, business combination, recapitalization, restructuring, liquidation, dissolution or extraordinary transaction involving the Company or any subsidiary or other controlled Affiliate of the Company or involving any securities or
        assets of the Company or any securities or assets of any subsidiary, division or other affiliate of the Company (provided that the Purchaser may tender its shares in any tender or exchange offer made by any third party provided that Ionis is not in
        breach of or won&#8217;t be in breach of this <u>Section 4.1</u> of this Agreement), or (iv) any &#8220;solicitation&#8221; of &#8220;proxies&#8221; (as those terms are used in the proxy rules of the SEC) or consents with respect to any securities of the Company;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160; form, join or in any way participate in a &#8220;<font style="font-style: italic;">group</font>&#8221; (as defined under the Exchange Act) with respect to the
        beneficial ownership of any securities of the Company or any subsidiary or division of the Company;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;otherwise act, alone or in concert with others, to seek to control or influence the management, Board or policies of the Company (other than
        such policies as may be within the scope of the Collaboration Agreement (including any amendments thereto));</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(d)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; take any action that would reasonably be expected to require the Company to make a public announcement regarding any of the types of matters set
        forth in <u>clause (a)</u> above; or</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(e)</font>&#160;&#160;&#160;&#160;&#160;&#160; agree or offer to take, or knowingly encourage or propose (publicly or otherwise) the taking of, any action referred to in <u>clauses (a)</u>, <u>(b)</u>,
        <u>(c)</u>, or <u>(d)</u> above;</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">65</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
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      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(f)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;assist, induce or encourage any other Person to take any action of the type referred to in <u>clauses (a)</u>, <u>(b)</u>, <u>(c)</u>, <u>(d)</u>
        or <u>(e) </u>above (provided that the Purchaser shall not be deemed to be in violation of this <u>clause (f)</u> unless the Person providing such assistance, inducement or encouragement knew or reasonably should have known at the time he or she
        did so that doing so violated this <u>clause (f)</u>, or knew or reasonably should have known after such time and did not attempt to halt such actions); or</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(g)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;enter into any discussions, negotiations, arrangement or agreement with any other Person with the intent to effect any of the foregoing
        (provided that the Purchaser shall not be deemed to be in violation of this <u>clause (g)</u> with respect to discussions or negotiations unless the Person entering into such discussions or negotiations knew or reasonably should have known at the
        time he or she did so that doing so violated this <u>clause (g)</u> or knew or reasonably should have known after such time and did not attempt to halt such actions.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Purchaser also agrees during the Standstill Period not to request the Company (or its representatives), directly or indirectly, amend or waive
        any provision of this <u>Section 4</u> other than by means of a<font style="font-style: italic;">&#160;</font>confidential communication to the Company&#8217;s Chairman of the Board or the Company&#8217;s Chief Executive Officer.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.3</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Purchaser represents and warrants that, as of the Execution Date, neither Purchaser nor any of its Affiliates owns, of record or beneficially,
        any voting securities of the Company, or any securities convertible into or exercisable for any voting securities of the Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.4</font>&#160;&#160;&#160;&#160;&#160;&#160; Notwithstanding the provisions set forth in <u>Sections 4.1</u> and <u>4.2</u> (the &#8220;<font style="font-weight: bold; font-style: italic;">Standstill





          Provisions</font>&#8221;), Purchaser shall immediately, and without any other action by the Company, be released from its obligations under the Standstill Provisions if: (a) the Company enters into a definitive written agreement with any Person other
        than the Purchaser (or any of its Affiliates) to consummate a merger, consolidation or similar transaction pursuant to which (i) any Person other than the Purchaser (or any of its Affiliates) will acquire 50% or more of the outstanding voting
        shares of the Company or (ii) the Company and its subsidiaries will sell to any Person other than the Purchaser (or any of its Affiliates) all or substantially all of the consolidated assets of the Company and its consolidated subsidiaries ((i) or
        (ii), a &#8220;<font style="font-weight: bold; font-style: italic;">Company Sale</font>&#8221;), (ii) a Third Party makes a tender or exchange offer for securities of the Company and the Board either accepts such offer or fails to recommend that its
        shareholders reject such offer within 10 Business Days from the date of commencement of such offer, or (iii) the Company publicly announces that its Board is engaging in a formal process that is intended to result in a transaction that if
        consummated would constitute a Company Sale.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">4.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Notwithstanding any other provision of this Agreement to the contrary, nothing in this Agreement will be deemed to prohibit a party from
        confidentially communicating to the other party&#8217;s board of directors or senior management or external financial advisors any non-public proposals regarding a possible transaction of any kind in such a manner as would not reasonably be expected to
        require public disclosure thereof under applicable Law or listing standards of any securities exchange, including Nasdaq.</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z97512f4d89af45e4aa69b1ef43aa8204">

          <tr>
            <td style="width: 36pt;"><br>
            </td>
            <td style="width: 36pt; vertical-align: top; font-weight: bold;">5.</td>
            <td style="width: auto; vertical-align: top;">
              <div>Transfer, Resale, Legends, Deposit for American Depositary Shares</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-indent: 36pt;"><font style="font-weight: bold;">5.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Transfer or Resale.</font>&#160; Purchaser understands that:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; the Shares have not been and are not being registered under the Securities Act or any applicable state securities Laws and, consequently,
        Purchaser may have to bear the risk of owning the Shares for an indefinite period of time because the Shares may not be transferred unless (i) the resale of the Shares is registered pursuant to an effective registration statement under the
        Securities Act; (ii) Purchaser has delivered to the Company an opinion of counsel (in form, substance and scope customary for opinions of counsel in comparable transactions) to the effect that the Shares to be sold or transferred may be sold or
        transferred pursuant to an exemption from such registration; or (iii) the Shares are sold or transferred pursuant to Rule 144 under the Securities Act (&#8220;<font style="font-weight: bold; font-style: italic;">Rule 144</font>&#8221;); and</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">66</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; any sale of the Shares made in reliance on Rule 144 may be made only in accordance with the terms of Rule 144 and, if Rule 144 is not applicable,
        any resale of the Shares under circumstances in which the seller (or the Person through whom the sale is made) may be deemed to be an underwriter (as that term is defined in the Securities Act) may require compliance with some other exemption under
        the Securities Act or the rules and regulations of the SEC thereunder.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">5.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Lock-Up</font>.&#160; Purchaser agrees that it will hold and will not sell any of the Shares (or otherwise make any
        short sale of, grant any option for the purchase of, or enter into any hedging or similar transaction with the same economic effect as a sale of the Shares) until the earlier of (i) the one-year anniversary of the Closing Date, and (ii) the
        termination of the Collaboration Agreement, provided that in the event the termination occurs less than six months after the Closing Date, the Purchaser shall hold and will not sell or otherwise enter into a transaction regarding the Shares until
        at least the date that is six months after the Closing Date.&#160; Notwithstanding the foregoing, this <u>Section 5.2 </u>will not preclude (i) distributions of Shares to general or limited partners, members, shareholders, Affiliates or wholly-owned
        subsidiaries of Purchaser or any investment fund or other entity controlled or managed by Purchaser; <font style="font-style: italic;">provided</font>, in each case, that following any such transfer such Shares will remain subject to the
        provisions of this <u>Section 5.2</u>; or (ii) transfers pursuant to a <font style="font-style: italic;">bona fide</font> third party tender offer for all outstanding Ordinary Shares, merger, consolidation or other similar transaction made to all
        holders of the Company&#8217;s securities involving a change of control of the Company (including the entering into any lock-up, voting or similar agreement pursuant to which Purchaser may agree to transfer, sell, tender or otherwise dispose of Shares or
        other such securities in connection with such transaction, or vote any Shares or other such securities in favor of any such transaction); <font style="font-style: italic;">provided</font>, that in the event that such tender offer, merger,
        consolidation or other such transaction is not completed, the Shares shall remain subject to the provisions of this <u>Section 5.2</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">5.3</font>&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Legends</font>.&#160; Purchaser understands the Shares will bear restrictive legends in substantially the following
        form (and a stop-transfer order may be placed against transfer of the Shares):</div>
      <div>&#160;</div>
      <div style="text-align: justify;">THE SHARES HAVE NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES LAWS.&#160; THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED UNLESS (I) THE SHARES
        ARE REGISTERED PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT; (II) AN OPINION OF COUNSEL HAS BEEN DELIVERED (IN FORM, SUBSTANCE AND SCOPE CUSTOMARY FOR OPINIONS OF COUNSEL IN COMPARABLE TRANSACTIONS) TO THE EFFECT THAT
        THE SHARES TO BE SOLD OR TRANSFERRED MAY BE SOLD OR TRANSFERRED PURSUANT TO AN EXEMPTION FROM SUCH REGISTRATION; OR (III) THE SHARES ARE SOLD OR TRANSFERRED PURSUANT TO RULE 144 UNDER THE SECURITIES ACT.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">THE SALE, PLEDGE, HYPOTHECATION OR TRANSFER OF THESE SECURITIES IS SUBJECT TO THE TERMS AND CONDITIONS OF A SHARE PURCHASE AGREEMENT DATED JULY 9, 2021 BETWEEN BICYCLE THERAPEUTICS PLC AND IONIS PHARMACEUTICALS, INC.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">If such Shares may be transferred pursuant to <u>Section 5.2</u> (excluding transfers pursuant to <u>Section 5.2(i))</u>, Purchaser may request that the Company remove, and the Company agrees to authorize and
        instruct (including by causing any required legal opinion to be provided) the removal of any legend from the Shares, if permitted by applicable securities Law, within two (2) Business Days of any such request; <font style="font-style: italic;">provided,








          however</font>, that each party will be responsible for any fees it incurs in connection with such request and removal.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">67</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">5.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold; color: rgb(0, 0, 0);">Deposit of Shares and Issuance of American Depositary Shares</font><font style="color: rgb(0, 0, 0);">. Upon the written request of the Purchaser to the Company, and in accordance with the other limitations of this Agreement, the Company will deposit or cause to be deposited such number of Shares with the Depositary as is requested
          by the Purchaser, and issue or cause to be issued to the Purchaser the corresponding American Depositary Shares, with any and all costs associated with such deposit and issuance paid for by the Purchaser. The Company shall (a) use its reasonable
          best efforts to (i) register or qualify its American Depositary Shares under the securities or blue sky Laws of such jurisdictions in the United States as the Purchaser reasonably requests and do any and all other acts and things which may be
          reasonably necessary or advisable to enable the Purchaser to consummate the disposition in such jurisdictions of the American Depositary Shares owned by the Purchaser in accordance with Rule 144 or </font>some other exemption under the
        Securities Act or the rules and regulations of the SEC thereunder, provided that the Company shall not be required to register the Shares or any American Depositary Shares held by the Purchaser on a Registration Statement on Form S-1 or
        Registration Statement on Form S-3 <font style="color: rgb(0, 0, 0);">and (ii) cause all such American Depositary Shares to be eligible and remain eligible for registration of the American Depositary Shares pursuant to Form F-6, and (b) cooperate
          with the Purchaser and the Depositary to facilitate the timely delivery of American Depositary Shares (in book entry or certificated form), which American Depositary Shares shall be free of all restrictive legends unless the Company reasonably
          determines on advice from legal counsel that such legends are required by applicable law (it being understood that the American Depositary Shares may be restricted American Depositary Shares subject to restrictions imposed by the Depositary if
          and for so long as the Purchaser is an Affiliate of the Company).</font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold; color: rgb(0, 0, 0);">5</font><font style="font-weight: bold;">.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Rule 144 Reporting. </font>With a view to making
        available to Purchaser the benefits of certain rules and regulations of the SEC that may permit the sale of registrable securities to the public without registration, the Company agrees to use its best efforts to:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160; Make and keep public information available, as those terms are understood and defined in Rule 144 or any similar or analogous rule promulgated under
        the Securities Act, at all times after the effective date of the first registration filed by the Company for an offering of its securities to the general public;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160; File with the SEC, in a timely manner, all reports and other documents required of the Company under the Exchange Act; and</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160; So long as Purchaser owns Shares, furnish to Purchaser upon request: a written statement by the Company as to its compliance with the reporting
        requirements of said Rule 144 of the Securities Act, and of the Exchange Act; a copy of the most recent annual or quarterly report of the Company filed with the Commission; and such other reports and documents as Purchaser may reasonably request in
        connection with availing itself of any rule or regulation of the SEC allowing it to sell any such securities without registration.</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="za15410117726429a82ea8b99e07d0578">

          <tr>
            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">6.</td>
            <td style="width: auto; vertical-align: top;">
              <div>Conditions to Closing</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.1</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Conditions to Obligations of the Company</font>.&#160; The Company&#8217;s obligation to complete the purchase and sale of
        the Shares and deliver the Shares to Purchaser is subject to the fulfillment or waiver of the following conditions at or prior to the Closing:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<u>Receipt of Funds</u>.&#160; The Company will have received immediately available funds in the full amount of the Purchase Price for the Shares
        being purchased hereunder.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">68</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <u>Representations and Warranties</u>.&#160; The representations and warranties made by Purchaser in <u>Section 3</u> will be true and correct in
        all material respects as of the Closing Date, except to the extent such representations and warranties are made as of another date, in which case such representations and warranties will be true and correct in all material respects as of such other
        date.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160; &#160;&#160; <u>Covenants</u>.&#160; All covenants and agreements contained in this Agreement to be performed or complied with by Purchaser on or prior to the
        Closing Date shall have been performed or complied with in all material respects.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(d)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <u>Absence of Litigation</u>.&#160; No proceeding challenging this Agreement or the transactions contemplated hereby, or seeking to prohibit, alter,
        prevent or materially delay the Closing, will have been instituted or be pending before any Governmental Authority.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(e)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<u>No Governmental Prohibition</u>.&#160; The sale of the Shares by the Company and the purchase of the Shares by Purchaser will not be prohibited by
        any applicable Law at the time of the Closing.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(f)</font>&#160;&#160;&#160;&#160;&#160;&#160; <u>Collaboration Agreement</u>.&#160; Purchaser and the Company shall have duly executed and delivered the Collaboration Agreement, such agreement
        shall be in full force and effect, each of the conditions contained therein shall have been satisfied or waived (if legally permissible) and the provisions of such agreement shall have become effective.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(g)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <u>Closing Deliverables</u>.&#160; All closing deliverables as required under <u>Section 1.3(b)(ii)</u> shall have been delivered by Purchaser to the
        Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">6.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Conditions to Purchaser&#8217;s Obligations at the Closing</font>.&#160; Purchaser&#8217;s obligation to complete the purchase
        and sale of the Shares is subject to the fulfillment or waiver of the following conditions at or prior to the Closing:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <u>Representations and Warranties</u>.&#160; The representations and warranties made by the Company in <u>Section 2</u> will be true and correct in
        all material respects as of the Closing Date, except to the extent such representations and warranties are made as of another date, in which case such representations and warranties will be true and correct in all material respects as of such other
        date.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <u>Covenants</u>.&#160; All covenants and agreements contained in this Agreement to be performed or complied with by the Company on or prior to the
        Closing Date shall have been performed or complied with in all material respects.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <u>Transfer Agent Instructions</u>.&#160; The Company will have delivered to its transfer agent and registrar irrevocable written instructions to
        issue the Shares to Purchaser in a form and substance acceptable to such transfer agent.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(d)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <u>Absence of Litigation</u>.&#160; No proceeding challenging this Agreement or the transactions contemplated hereby, or seeking to prohibit, alter,
        prevent or materially delay the Closing, will have been instituted or be pending before any Governmental Authority.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(e)</font>&#160;&#160;&#160;&#160;&#160;&#160; <u>Collaboration Agreement</u>.&#160; Purchaser and the Company shall have duly executed and delivered the Collaboration Agreement, such agreement
        shall be in full force and effect, each of the conditions contained therein shall have been satisfied or waived (if legally permissible) and the provisions of such agreement shall have become effective.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">69</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(f)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<u>No Governmental Prohibition</u>.&#160; The sale of the Shares by the Company, and the purchase of the Shares by Purchaser will not be prohibited
        by any applicable Law at the time of the Closing.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(g)</font>&#160;&#160;&#160;&#160;&#160;&#160; <u>Closing Deliverables</u>.&#160; All closing deliverables as required under <u>Section 1.3(b)(i)</u> shall have been delivered by the Company to
        Purchaser.</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="ze7a0ff6117554628b6899f356ecf6e9a">

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            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">7.</td>
            <td style="width: auto; vertical-align: top;">
              <div>Indemnification</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">7.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Indemnification by the Company</font>.&#160; The Company shall indemnify and hold harmless Purchaser and its
        Affiliates, and the directors, officers, employees and other agents and representatives of Purchaser and its Affiliates, from and against any and all liabilities, judgments, claims, settlements, losses, damages, fees, Liens, Taxes, penalties,
        obligations and expenses (including reasonable attorney&#8217;s fees and expenses and costs and expenses of investigation) (collectively, &#8220;<font style="font-weight: bold; font-style: italic;">Losses</font>&#8221;) incurred or suffered, directly or indirectly,
        by any such Person arising from, by reason of or in connection with: (a) any breach or inaccuracy of any representation or warranty of the Company contained in this Agreement or any certificate delivered by the Company or on its behalf hereunder;
        and (b) the non-fulfillment or breach by the Company of any agreements or obligations under this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">7.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Indemnification by Purchaser</font>.&#160; Purchaser shall indemnify and hold harmless the Company and its
        Affiliates, and the directors, officers, employees and other agents and representatives of the Company and its Affiliates, from and against any and all Losses incurred or suffered, directly or indirectly, by any such Person arising from, by reason
        of or in connection with: (a) any breach or inaccuracy of any representation or warranty of Purchaser contained in this Agreement or any certificate delivered by the Purchaser or on its behalf hereunder; and (b) the non-fulfillment or breach by
        Purchaser of any agreements or obligations under this Agreement.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">7.3</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Calculation of Losses</font>.&#160; Any indemnity payment hereunder shall be treated as an adjustment to the Purchase
        Price to the extent permitted by applicable Law.&#160; Where the receipt of any such payment is treated for Tax purposes in a manner other than as an adjustment to the Purchase Price, the amount of the payment shall be adjusted to take account of any
        net Tax cost actually incurred, or benefit actually enjoyed, by the Indemnified Party in respect thereof.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">7.4</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Certain Procedures for Indemnification</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160; If any Person entitled to indemnification under this Agreement (an &#8220;<font style="font-weight: bold; font-style: italic;">Indemnified Party</font>&#8221;)
        asserts a claim for indemnification, or receives notice of the assertion of any claim or of the commencement of any action by any Person not a party to this Agreement against such Indemnified Party, for which a party to this Agreement is required
        to provide indemnification under this <u>Section 7</u> (an &#8220;<font style="font-weight: bold; font-style: italic;">Indemnifying Party</font>&#8221;), the Indemnified Party shall promptly notify the Indemnifying Party in writing of the claim or the
        commencement of that action; <font style="font-style: italic;">provided, however</font>, that the failure to so notify the Indemnifying Party shall not relieve the Indemnifying Party from any liability which it may have to the Indemnified Party,
        except to the extent that such failure materially prejudices the Indemnifying Party&#8217;s ability to defend such action.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">70</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;With respect to third party claims for which indemnification is claimed hereunder, (i) the Indemnifying Party shall be entitled to participate
        in the defense of any such claim, and (ii) if, in the reasonable judgment of the Indemnified Party, such claim can properly be resolved by money damages alone and the Indemnifying Party has the financial resources to pay such damages, and the
        Indemnifying Party admits that this indemnity fully covers the claim or litigation, then the Indemnifying Party shall be entitled (y) to direct the defense of any claim at its sole cost and expense, but such defense shall be conducted by legal
        counsel reasonably satisfactory to the Indemnified Party, and (z) to settle and compromise any such claim or action for money damages alone; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that
        if the Indemnified Party has elected to be represented by separate counsel pursuant to the proviso below, or if such settlement or compromise does not include an unconditional release of the Indemnified Party for any liability arising out of such
        claim or action, such settlement or compromise shall be effected only with the written consent of the Indemnified Party.&#160; After notice from the Indemnifying Party to the Indemnified Party of its election to assume the defense of such claim or
        action, the Indemnifying Party shall not be liable to the Indemnified Party under this <u>Section 7.4</u> for any legal or other expenses subsequently incurred by the Indemnified Party in connection with the defense thereof other than reasonable
        costs of investigation or of assistance as contemplated by this <u>Section 7.4</u>; <font style="font-style: italic;">provided</font>,<font style="font-style: italic;"> however</font>, that if, in the opinion of the Indemnified Party, it is
        advisable for the Indemnified Party to be represented by separate counsel due to actual or potential conflicts of interest, the Indemnified Party shall have the right to employ counsel to represent it and in that event the fees and expenses of such
        separate counsel shall be paid by the Indemnifying Party; <font style="font-style: italic;">provided further</font>, that in no event shall the Indemnifying Party be responsible for the fees of more than one counsel to the Indemnified Party.&#160; The
        Indemnified Party and the Indemnifying Party shall each render to each other such assistance as may reasonably be requested in order to ensure the proper and adequate defense of any such claim or proceeding.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">7.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Survival; Expiration.</font></div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Notwithstanding any investigation made by or on behalf of the Company or Purchaser prior to, on or after the Closing Date, the representations
        and warranties contained in this Agreement (including the exhibits and schedules hereto) and any certificate delivered hereunder shall survive the Closing and shall terminate on the second anniversary of the Closing Date.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; The covenants of the parties hereto shall survive until fully performed and discharged, unless otherwise expressly provided herein.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; Any right of indemnification or reimbursement pursuant to this <u>Section 7</u> with respect to a claimed breach, inaccuracy or non-fulfillment
        of any representation, warranty, agreement or obligation shall expire on the applicable date of termination of the representation, warranty or covenant claimed to be breached (the &#8220;<font style="font-weight: bold; font-style: italic;">Expiration
          Date</font>&#8221;), unless on or prior to the applicable Expiration Date, the Indemnifying Party has received written notice from the Indemnified Party of such breach, inaccuracy or non-fulfillment from the Indemnified Party or is based on fraud or
        intentional or willful breach of the Indemnifying Party, in which case the Indemnified Party may continue to pursue its right of indemnification or reimbursement hereunder beyond the Expiration Date of the applicable representation, warranty,
        agreement or obligation.&#160; For the avoidance of doubt, no claims based on fraud or intentional or willful breach will be subject to any of the limitations set forth in this <u>Section 7.5</u>.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">71</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
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      </div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zb10629dacc8c4010b1b65eda9acf8bca">

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            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">8.</td>
            <td style="width: auto; vertical-align: top; text-align: justify;">
              <div>Dispute Resolution</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">8.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">(a)</font>If the parties cannot amicably resolve any dispute (a &#8220;<font style="font-weight: bold; font-style: italic;">Dispute</font>&#8221;) arising under this Agreement, then a party seeking further resolution of such Dispute shall submit such Dispute to final and binding arbitration conducted in accordance with the terms of this <u>Section 8.1</u>.&#160; The
        party initiating arbitration will give written notice to that effect to the other party.&#160; The legal seat of arbitration will be New York City, New York, U.S., and the arbitration will be administered by JAMS according to the JAMS International
        Arbitration Rules applicable at the time of commencement of the arbitration except as otherwise provided herein and applying the substantive law specified in <u>Section 10.1</u>.&#160; The arbitration will be conducted by a single arbitrator appointed
        in accordance with the Rules, provided that such arbitrator must have significant business or legal experience in the pharmaceutical industry and the applicable law concerning the subject matter of the dispute.&#160; In any case, the arbitrator will not
        be an Affiliate, employee, consultant, officer, director, shareholder or stockholder of either party, or otherwise have any current or previous relationship with either party or their respective Affiliates.&#160; After conducting any hearing and taking
        any evidence deemed appropriate for consideration, the arbitrator will render a written opinion within 30 days after the final arbitration hearing.&#160; The arbitrator&#8217;s decision will include findings of fact and conclusions of law.&#160; The determination
        of the arbitrator as to the resolution of any Dispute will be binding and conclusive on the parties.&#160; Judgment on the award so rendered may be entered in any court of competent jurisdiction, and the parties undertake to carry out any award without
        delay.&#160; Nothing contained herein will be construed to permit the arbitrator to award punitive, exemplary, or any similar damages and any arbitral award that purports to award such damages is expressly prohibited and void <font style="font-style: italic;">ab initio</font>.&#160; Each party will bear its own attorneys&#8217; fees, costs and disbursements arising out of the arbitration and will pay an equal share of the fees and costs of the arbitrator.&#160; Except to the extent necessary to confirm,
        enforce, or challenge an award of the arbitration, to protect or pursue a legal right, or as otherwise required by applicable law or regulation, no party nor the arbitrator may disclose the existence, content, or results of an arbitration under
        this <u>Section 8.1</u> without the express, prior written consent of each of the parties.&#160; In no event shall any party initiate arbitration after the date when commencement of a legal or equitable proceeding based on the Dispute, controversy, or
        claim would be barred by the applicable New York statute of limitations.&#160; Any Disputes concerning the propriety of the commencement of the arbitration, or the validity or application of this <u>Section 8.1</u>, shall be finally settled by the
        arbitrator.&#160; Nothing in this <u>Section 8.1</u> shall preclude either party from (a) seeking interim or provisional relief, including a temporary restraining order, preliminary injunction, or other interim equitable relief concerning a dispute in
        any court of competent jurisdiction, before or after the initiation of an arbitration as set forth in this <u>Section 8.1</u>, if necessary to protect the interests of such party, or (b) bringing an action in any court of competent jurisdiction to
        resolve a dispute regarding the intellectual property rights hereunder, and this sentence shall be specifically enforceable.</div>
      <div>&#160;</div>
      <div style="text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;For the avoidance of doubt, any disputes with respect to the terms of the Collaboration Agreement shall be resolved in accordance with the dispute resolution
        provisions therein, and shall not be subject to the provisions of this <u>Section 8</u>.</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd2c5ca96f5ed42759457b2feba05d99f">

          <tr>
            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">9.</td>
            <td style="width: auto; vertical-align: top;">
              <div>Termination</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">9.1</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="font-weight: bold;">Ability to Terminate</font>.&#160; This Agreement may be terminated prior to the Closing:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;at any time by mutual written consent of the Company and Purchaser;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; by the Company, upon three (3) days&#8217; written notice to Purchaser, so long as the Company is not then in breach of its representations,
        warranties, covenants or agreements under this Agreement such that any of the conditions set forth in <u>Section 6.1</u>, as applicable, could not be satisfied by the Termination Date, (i) upon a breach of any covenant or agreement on the part of
        Purchaser set forth in this Agreement that has not been cured within such 3-day notice period, or (ii) if any representation or warranty of Purchaser shall have been or become untrue, in each case such that any of the conditions set forth in <u>Section








          6.1</u> could not be satisfied by the Termination Date;</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;by Purchaser, upon three (3) days&#8217; written notice to the Company, so long as Purchaser is not then in breach of its representations, warranties,
        covenants or agreements under this Agreement such that any of the conditions set forth in <u>Section 6.2</u> of this Agreement, as applicable, could not be satisfied by the Termination Date, (i) upon a breach of any covenant or agreement on the
        part of the Company set forth in this Agreement that has not been cured within such 3-day notice period, or (ii) if any representation or warranty of the Company shall have been or become untrue, in each case such that any of the conditions set
        forth in <u>Section 6.2</u> of this Agreement could not be satisfied by the Termination Date;</div>
      <div>&#160;</div>
      <div>
        <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(d)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;by either the Company or Purchaser, upon written notice to the other, if the Closing has not occurred on or before _____________, 2021 (the &#8220;<font style="font-weight: bold; font-style: italic;">Termination Date</font>&#8221;).</div>
        <div style="text-align: justify; text-indent: 72pt;"> <br>
        </div>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">72</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 72pt;"></div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">9.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Effect of Termination</font>.&#160; In the event of the termination of this Agreement pursuant to <u>Section 9</u>,
        (a) this Agreement (except for this <u>Section 9.2</u>, and <u>Section 7</u>, <u>Section 8</u>, <u>Section 10.1</u> and <u>Sections 10.3</u> through <u>10.14</u> and any definitions set forth in this Agreement and used in such Sections) shall
        forthwith become void and have no effect, without any liability on the part of any party hereto or its Affiliates, and (b) any and all filings, applications and other submissions made pursuant to this Agreement, to the extent practicable, shall be
        withdrawn from the agency or other Person to which they were made or appropriately amended to reflect the termination of the transactions contemplated hereby; <font style="font-style: italic;">provided</font>, <font style="font-style: italic;">however</font>,
        that nothing contained in this <u>Section 10.2</u> shall relieve any party from liability for fraud or any intentional or willful breach of this Agreement.</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zd1e10aad32de42d896e5aa0a19f27b43">

          <tr>
            <td style="width: 49.5pt;"><br>
            </td>
            <td style="width: 22.5pt; vertical-align: top; font-weight: bold;">10.</td>
            <td style="width: auto; vertical-align: top;">
              <div>Governing Law; Miscellaneous</div>
            </td>
          </tr>

      </table>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.1</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Governing Law</font>.&#160; This Agreement will be governed by and interpreted in accordance with the laws of the
        State of New York without regard to the principles of conflict of laws that would require the application of the substantive Laws of another jurisdiction.</div>
      <div>&#160;</div>
      <div style="text-indent: 36pt;"><font style="font-weight: bold;">10.2</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Market Listing</font>.&#160; From the Execution Date through the Closing, the Company shall use commercially reasonable efforts to
        maintain the listing and trading of the Company&#8217;s American Depositary Shares on Nasdaq.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.3</font>&#160;&#160;&#160; <font style="font-weight: bold;">Counterparts; Electronic Signatures</font>.&#160; This Agreement may be executed and delivered (including by facsimile
        transmission or PDF or any other electronically transmitted signatures) in two counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.4</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Headings</font>.&#160; The headings of this Agreement are for convenience of reference only, are not part of this
        Agreement and do not affect its interpretation.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.5</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Rules of Construction</font>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(a)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;For purposes of this Agreement, whenever the context requires: the singular number shall include the plural, and vice versa; the masculine
        gender shall include the feminine and neuter genders; the feminine gender shall include the masculine and neuter genders; and the neuter gender shall include the masculine and feminine genders.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(b)</font>&#160;&#160;&#160;&#160;&#160;&#160; As used in this Agreement, (i) the words &#8220;include&#8221; and &#8220;including,&#8221; and variations thereof, shall not be deemed to be terms of limitation, but
        rather shall be deemed to be followed by the words &#8220;without limitation&#8221;, (ii) the words &#8220;hereby,&#8221; &#8220;herein,&#8221; &#8220;hereunder&#8221; and &#8220;hereto&#8221; shall be deemed to refer to this Agreement in its entirety and not to any specific section of this Agreement and
        (iii) &#8220;or&#8221; has the inclusive meaning represented by the phrase &#8220;and/or&#8221;.</div>
      <div>&#160;</div>
      <div style="text-indent: 72pt;"><font style="font-weight: bold;">(c)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Except as otherwise indicated, all references in this Agreement to &#8220;Sections&#8221; and &#8220;Appendices&#8221; are intended to refer to Sections of this Agreement, as appropriate,
        and Appendices to this Agreement.</div>
      <div>&#160;</div>
      <div>
        <div style="text-align: justify; text-indent: 72pt;"><font style="font-weight: bold;">(d)</font>&#160;&#160;&#160;&#160;&#160;&#160; As used in this Agreement, the term &#8220;days&#8221; means calendar days unless otherwise specified.&#160; When calculating the period of time before which,
          within which or following which any act is to be done or step taken pursuant to this Agreement, the date that is the reference date in calculating such period shall be excluded.&#160; If the last day of such period is a non-Business Day, the period in
          question shall end on the next succeeding Business Day.</div>
        <div style="text-align: justify; text-indent: 72pt;"> <br>
        </div>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">73</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-indent: 72pt;"><font style="font-weight: bold;">(e)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Unless otherwise indicated, all monetary amounts herein are in United States dollars.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.6</font>&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Severability</font>.&#160; If any provision of this Agreement should be held invalid, illegal or unenforceable in any
        jurisdiction, the parties will negotiate in good faith a valid, legal and enforceable substitute provision that most nearly reflects the original intent of the parties and all other provisions hereof will remain in full force and effect in such
        jurisdiction and will be liberally construed in order to carry out the intentions of the parties hereto as nearly as may be possible.&#160; Such invalidity, illegality or unenforceability will not affect the validity, legality or enforceability of such
        provision in any other jurisdiction.</div>
      <div>&#160;</div>
      <div style="text-indent: 36pt;"><font style="font-weight: bold;">10.7</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Entire Agreement; Amendments</font>.&#160; This Agreement, the Option Agreement, and the Collaboration Agreement (including any
        schedules, appendices and exhibits hereto or thereto and any certificates delivered hereunder) constitute the entire agreement between the parties hereto with respect to the subject matter hereof and thereof.&#160; There are no restrictions, promises,
        warranties or undertakings, other than those set forth or referred to herein or therein.&#160; This Agreement supersedes all prior agreements and understandings between the parties hereto with respect to the subject matter hereof.&#160; No provision of this
        Agreement may be waived or amended other than by an instrument in writing signed by the party to be charged with enforcement.&#160; Any amendment or waiver effected in accordance with this <u>Section 10.7</u> shall be binding upon Purchaser and the
        Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.8</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Notices</font>.&#160; All notices required or permitted hereunder will be in writing and will be deemed effectively
        given: (a) upon personal delivery to the party to be notified, (b) when sent by confirmed email if sent during normal business hours of the recipient, if not, then on the next Business Day, or (c) one Business Day after deposit with a nationally
        recognized overnight courier, specifying next day delivery, with written verification of receipt.&#160; The addresses for such communications are:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;">If to the Company, to:</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 40.5pt;">Bicycle Therapeutics plc</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 40.5pt;">Building 900</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 40.5pt;">Babraham Research Campus</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 40.5pt;">Cambridge CB22 3AT, UK</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 40.5pt;">Attention: General Counsel</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 40.5pt;">Email:&#160; [***]</div>
      <div><br>
      </div>
      <div style="text-align: justify; text-indent: 36pt;">with a copy (which shall not constitute notice) to:</div>
      <div><br>
      </div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Cooley LLP</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">3175 Hanover Street</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Palo Alto, CA 94304-1130</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Attention: Laura Berezin</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">E-mail: lberezin@cooley.com</div>
      <div><br>
      </div>
      <div style="text-align: justify; text-indent: 36pt;">If to the Purchaser, to:</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Ionis Pharmaceuticals, Inc.</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">2855 Gazelle Court</div>
      <div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Carlsbad, CA 92010</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Attention: Chief Financial Officer</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Email: [***]</div>
        <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;"> <br>
        </div>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">74</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 36pt;">With a copy (which shall not constitute notice) to:</div>
      <div><br>
      </div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Attention: General Counsel</div>
      <div style="text-align: justify; text-indent: 36pt; margin-left: 36pt;">Email: [***]</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.9</font>&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Successors and Assigns</font>.&#160; This Agreement is binding upon and inures to the benefit of the parties and
        their successors and assigns.&#160; The Company will not assign this Agreement or any rights or obligations hereunder without the prior written consent of Purchaser, and Purchaser will not assign this Agreement or any rights or obligations hereunder
        without the prior written consent of the Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.10</font>&#160;&#160;&#160; &#160; <font style="font-weight: bold;">Third Party Beneficiaries</font>.&#160; This Agreement is intended for the benefit of the parties hereto, their
        respective permitted successors and assigns, and is not for the benefit of, nor may any provision hereof be enforced by, any other Person.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.11</font>&#160;&#160;&#160; <font style="font-weight: bold;">Further Assurances</font>.&#160; Each party will do and perform, or cause to be done and performed, all such further
        acts and things, and will execute and deliver all other agreements, certificates, instruments and documents, as the other party may reasonably request in order to carry out the intent and accomplish the purposes of this Agreement and the
        consummation of the transactions contemplated hereby.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.12</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">No</font>&#160;<font style="font-weight: bold;">Strict Construction</font>.&#160; The language used in this Agreement is
        deemed to be the language chosen by the parties to express their mutual intent, and no rules of strict construction will be applied against a party.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.13</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Equitable Relief</font>.&#160; The Company recognizes that, if it fails to perform or discharge any of its obligations
        under this Agreement, any remedy at Law may prove to be inadequate relief to Purchaser.&#160; The Company therefore agrees that Purchaser is entitled to seek temporary and permanent injunctive relief or specific performance in any such case.&#160; Purchaser
        also recognizes that, if it fails to perform or discharge any of its obligations under this Agreement, any remedy at Law may prove to be inadequate relief to the Company.&#160; Purchaser therefore agrees that the Company is entitled to seek temporary
        and permanent injunctive relief or specific performance in any such case.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.14</font>&#160;&#160;&#160;&#160; <font style="font-weight: bold;">Expenses</font>.&#160; The Company and Purchaser are each liable for, and will pay, their own expenses incurred in
        connection with the negotiation, preparation, execution and delivery of this Agreement, including attorneys&#8217; and consultants&#8217; fees and expenses.</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold;">10.15</font>&#160; &#160; <font style="font-weight: bold;">Public Disclosure</font>.&#160; On or shortly after the Effective Date, the Company and Purchaser shall issue a joint
        press release in a form mutually agreed to by the Company and Purchaser.&#160; In addition, the Company shall file a Current Report on Form 8-K with the SEC within the time period required by such form and including such disclosures as required by such
        form with respect to this Agreement and the transactions contemplated herein, such Current Report on Form 8-K to be in a form mutually agreed to by the Company and Purchaser.&#160; No other written release, public announcement, disclosure or filing
        concerning the purchase of the Shares, this Agreement or the transactions contemplated hereby or thereby shall be issued, filed or furnished, as the case may be, by any party without the prior written consent of the other party (which consent shall
        not be unreasonably withheld, conditioned or delayed) and, except as set forth in this <u>Section 10.15</u>, the parties agree to keep the terms of this Agreement confidential.&#160; Notwithstanding the foregoing, the parties acknowledge and agree that
        applicable Law or the requirements of a national securities exchange or another similar regulatory body may require either party to file or otherwise disclose a copy of this Agreement.&#160; The party required to make such filing or otherwise disclose
        shall notify the other party and shall, to the extent possible, provide the other party with at least five (5) Business Days to request redactions thereof prior to making such filing or disclosure.&#160; The disclosing party shall use commercially
        reasonable efforts to procure confidential treatment of such proposed redactions pursuant to the Securities Act and the Exchange Act, in each case as amended, and the rules, regulations and guidelines promulgated thereunder, or any other applicable
        Law or the rules, regulations or guidelines promulgated hereunder; <font style="font-style: italic;">provided</font> that the foregoing shall not prevent the party from making such public disclosures as it must make to comply with applicable Law.</div>
      <div>&#160;</div>
      <div style="text-align: center;">[Remainder of page intentionally left blank.]</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">75</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify; text-indent: 36pt;"><font style="font-weight: bold; font-variant: small-caps;">In Witness Whereof, </font>Purchaser and the Company have caused this Agreement to be duly executed as of the date first above written.</div>
      <div>&#160;</div>
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          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td colspan="2" style="vertical-align: top;">
              <div style="text-align: justify; color: rgb(0, 0, 0); font-variant: small-caps; font-weight: bold;">COMPANY:</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td colspan="2" style="vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td colspan="2" style="vertical-align: top;">
              <div style="text-align: justify; color: rgb(0, 0, 0); font-variant: small-caps; font-weight: bold;">Bicycle Therapeutics plc</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            <td style="width: 5%; vertical-align: top; padding-bottom: 2px;">
              <div style="text-align: justify; color: rgb(0, 0, 0);">By:</div>
            </td>
            <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            <td style="width: 5%; vertical-align: top; padding-bottom: 2px;">
              <div style="color: rgb(0, 0, 0);">Name:</div>
            </td>
            <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            <td style="width: 5%; vertical-align: top; padding-bottom: 2px;">
              <div style="color: rgb(0, 0, 0);">Title:</div>
            </td>
            <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td colspan="2" style="vertical-align: top;">
              <div style="text-align: justify; color: rgb(0, 0, 0); font-variant: small-caps; font-weight: bold;">Purchaser:</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td colspan="2" style="vertical-align: top;">
              <div style="text-align: justify; color: rgb(0, 0, 0); font-variant: small-caps; font-weight: bold;">Ionis Pharmaceuticals, Inc.</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            <td style="width: 5%; vertical-align: top; padding-bottom: 2px;">
              <div style="text-align: justify; color: rgb(0, 0, 0);">By:</div>
            </td>
            <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            <td style="width: 5%; vertical-align: top; padding-bottom: 2px;">
              <div style="color: rgb(0, 0, 0);">Name:</div>
            </td>
            <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 5%; vertical-align: top;">&#160;</td>
            <td style="width: 45%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top; padding-bottom: 2px;">&#160;</td>
            <td style="width: 5%; vertical-align: top; padding-bottom: 2px;">
              <div style="color: rgb(0, 0, 0);">Title:</div>
            </td>
            <td style="width: 45%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
          </tr>

      </table>
      <div><br>
      </div>
      <div style="text-align: center;">[<font style="font-style: italic;">Signature page to Share Purchase Agreement</font>]</div>
      <div><br>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">76</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: center; font-variant: small-caps; font-weight: bold;">
        <div style="font-variant: small-caps; font-weight: bold;"><u>Appendix </u><u>1</u></div>
      </div>
      <div>&#160;</div>
      <div style="text-align: center; font-variant: small-caps; font-weight: bold;"><u>Defined Terms</u></div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Affiliate</font>&#8221; of an entity means any corporation, firm, partnership or other entity that directly or indirectly through one or more intermediaries controls,
        is controlled by or is under common control with it.&#160; An entity will be deemed to control another entity if it (i) owns, directly or indirectly, at least 50% of the outstanding voting securities, capital stock or share capital (or such lesser
        percentage that is the maximum allowed to be owned by a foreign corporation in a particular jurisdiction) of such other entity, or has other comparable ownership interest with respect to any entity other than a corporation; or (ii) has the power,
        whether pursuant to contract, ownership of securities or otherwise, to direct the management and policies of the entity.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Agreement</font>&#8221; has the meaning set forth in the preamble.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#160;<font style="color: rgb(0, 0, 0);">&#8220;</font><font style="font-weight: bold; font-style: italic; color: rgb(0, 0, 0);">American Depositary Shares</font><font style="color: rgb(0, 0, 0);">&#8221; shall mean shares issued by
          the Depositary pursuant to the Deposit Agreement, each representing one Ordinary Share.</font></div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Applicable Regulatory Authorities</font>&#8221; has the meaning set forth in <u>Section 2.12</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">BicycleTx</font>&#8221; has the meaning set forth in the recitals.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Board</font>&#8221;<font style="font-style: italic;">&#160;</font>means the board of directors of the Company.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Business Day</font>&#8221; means a day Monday through Friday on which banks are generally open for business in the State of California, the State of New York and
        London, England.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Change of Control Transaction</font>&#8221; has the meaning set forth in <u>Section 5.2</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Closing</font>&#8221; has the meaning set forth in <u>Section 1.3(a)</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Closing Cash</font>&#8221; has the meaning set forth in <u>Section 1.1</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Closing Date</font>&#8221; means the date on which the Closing actually occurs.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Collaboration Agreement</font>&#8221; has the meaning set forth in the recitals.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Company Rights</font>&#8221; has the meaning set forth in <u>Section 2.11(c)</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Company Sale</font>&#8221; has the meaning set forth in <u>Section 4.4</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Company Trials</font>&#8221; has the meaning set forth in <u>Section 2.13</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Cross-Receipt</font>&#8221; has the meaning set forth in <u>Section 1.3(b)(i)(A)</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify; color: rgb(0, 0, 0);">&#8220;<font style="font-weight: bold; font-style: italic;">Deposit Agreement</font>&#8221; means the Deposit Agreement, dated as May 28, 2019, as amended from time to time, among the Company, the
        Depositary, and holders from time to time of the American Depositary Shares.</div>
      <div><br>
      </div>
      <div style="text-align: justify; color: rgb(0, 0, 0);">&#8220;<font style="font-weight: bold; font-style: italic;">Depositary</font>&#8221; means mean Citibank, N.A.</div>
      <div><br>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Dispute</font>&#8221; has the meaning set forth in <u>Section 8.1</u>.</div>
      <div>&#160;</div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">77</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">DOJ</font>&#8221; means the U.S. Department of Justice.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Exchange Act</font>&#8221; means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the SEC thereunder.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Execution Date</font>&#8221; has the meaning set forth in the preamble.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Expiration Date</font>&#8221; has the meaning set forth in <u>Section 7.5(c)</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">FDA</font>&#8221; has the meaning set forth in <u>Section 2.12</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#160;&#8220;<font style="font-weight: bold; font-style: italic;">FTC</font>&#8221;<font style="font-style: italic;">&#160;</font>means the U.S. Federal Trade Commission.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">GAAP</font>&#8221; means generally accepted accounting principles in the United States of America.</div>
      <div>&#160;</div>
      <div style="text-align: justify;"><font style="font-weight: bold; font-style: italic;">&#8220;Good Clinical Practices&#8221;</font> means the legal, scientific and ethical standards for the performance of clinical research on medicinal products involving humans,
        including as reflected in the regulations of the FDA at 21 C.F.R. parts 50, 54, 56, and 312.</div>
      <div><br>
      </div>
      <div style="text-align: justify;"><font style="font-weight: bold; font-style: italic;">&#8220;Good Laboratory Practices&#8221;</font> means the legal, scientific and ethical standards for the performance of nonclinical laboratory studies, including as set out in
        the regulations of the FDA at 21 C.F.R. part 58.</div>
      <div><br>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Governmental Authority</font>&#8221; means any federal, state, provincial, local, municipal, foreign or other governmental or quasi-governmental authority, including
        any arbitrator and applicable securities exchanges, or any department, minister, agency, commission, commissioner, board, subdivision, bureau, agency, instrumentality, court or other tribunal of any of the foregoing.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Health Care Laws</font>&#8221; means Title XVIII of the Social Security Act, 42 U.S.C. &#167;&#167; 1395-1395lll (the Medicare statute); Title XIX of the Social Security Act, 42
        U.S.C. &#167;&#167; 1396-1396w-5 (the Medicaid statute); the Federal Anti-Kickback Statute, 42 U.S.C. &#167; 1320a-7b(b); the civil False Claims Act, 31 U.S.C. &#167;&#167; 3729 et seq.; the criminal False Claims Act 42 U.S.C. 1320a-7b(a); any other criminal laws relating
        to health care fraud and abuse, including but not limited to 18 U.S.C. Sections 286 and 287 and the health care fraud criminal provisions under the Health Insurance Portability and Accountability Act of 1996, 42 U.S.C. &#167;&#167; 1320d et seq., (&#8220;<font style="font-weight: bold; font-style: italic;">HIPAA</font>&#8221;); the Civil Monetary Penalties Law, 42 U.S.C. &#167;&#167; 1320a-7a; the Physician Payments Sunshine Act, 42 U.S.C. &#167; 1320a-7h; the Exclusion Laws, 42 U.S.C. &#167; 1320a-7; HIPAA, as amended by the
        Health Information Technology for Economic and Clinical Health Act, 42 U.S.C. &#167;&#167; 17921 et seq.; the Federal Food, Drug, and Cosmetic Act, 21 U.S.C. &#167;&#167; 301 et seq.; the Public Health Service Act, 42 U.S.C. &#167;&#167; 201 et seq.; the regulations promulgated
        pursuant to such laws; and any similar federal, state and local laws and regulations, each and all as may be amended from time to time.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">HIPAA</font>&#8221; has the meaning set forth in the definition of &#8220;Health Care Laws.&#8221;</div>
      <div>&#160;</div>
      <div style="text-align: justify; color: rgb(0, 0, 0);">&#8220;<font style="font-weight: bold; font-style: italic;">IEC</font>&#8221; has the meaning set forth in <u>Section 2.13</u>.</div>
      <div><br>
      </div>
      <div style="text-align: justify; color: rgb(0, 0, 0);">&#8220;<font style="font-weight: bold; font-style: italic;">Indemnified Party</font>&#8221; has the meaning set forth in <u>Section 7.4(a)</u>.</div>
      <div><br>
      </div>
      <div style="text-align: justify; color: rgb(0, 0, 0);">&#8220;<font style="font-weight: bold; font-style: italic;">Indemnifying Party</font>&#8221; has the meaning set forth in <u>Section 7.4(a)</u>.</div>
      <div><br>
      </div>
      <div style="text-align: justify; color: rgb(0, 0, 0);">&#8220;<font style="font-weight: bold; font-style: italic;">Intellectual Property</font>&#8221; shall mean trademarks, trade names, trade dress, service marks, copyrights, and similar rights (including
        registrations and applications to register or renew the registration of any of the foregoing), patents and patent applications, trade secrets, and any other similar intellectual property rights.</div>
      <div><br>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">78</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Intellectual Property License</font>&#8221; shall mean any license, permit, authorization, approval, contract or consent granted, issued by or with any Person relating
        to the use of Intellectual Property.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">IRB</font>&#8221; has the meaning set forth in <u>Section 2.13</u>.</div>
      <div><br>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Law</font>&#8221; means any federal, state, local or foreign constitution, treaty, law, statute, ordinance, rule, regulation, interpretation, directive, policy, order,
        writ, decree, injunction, judgment, stay or restraining order of any Governmental Authority, the terms of any permit, and any other ruling or decision of, agreement with or by, or any other requirement of, any Governmental Authority.</div>
      <div><br>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Lien</font>&#8221; means any lien (statutory or otherwise), charge, security interest, pledge, mortgage, restriction on use or transfer, financing statement or similar
        encumbrance of any kind or nature whatsoever (including any conditional sale or other title retention agreement and any lease having substantially the same effect as any of the foregoing and any assignment or deposit arrangement in the nature of a
        security device).</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Losses</font>&#8221; has the meaning set forth in <u>Section 7.1</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Material Adverse Effect</font>&#8221; means any change, effect or circumstance, individually or in the aggregate, (a) that is reasonably likely to be materially adverse
        to the business, operations, assets or financial condition of the Company or Purchaser, as the case may be, taken as a whole, or (b) that materially impairs the ability of the Company or Purchaser to perform its obligations pursuant to the
        transactions contemplated by this Agreement or the Collaboration Agreement; <font style="font-style: italic;">provided however</font>, that, none of the following (alone or when aggregated with any other effects), shall be deemed to be a Material
        Adverse Effect, and none of the following (alone or when aggregated with any other effects), shall be taken into account for purposes of <u>clause (a)</u> above: (A) (1) general market, economic or political conditions or (2) conditions (or any
        changes therein) in the industries in which the Company or Purchaser conducts business, in each case, including any acts of terrorism or war, weather conditions, global virus pandemics, epidemics or other force majeure events, in the case of each
        of <u>clauses (1)</u> and <u>(2)</u>, solely to the extent that such effects do not have and are not reasonably likely to have a material disproportionate impact on the Company or Purchaser, as the case may be; (B) this Agreement, the
        Collaboration Agreement (including any amendments thereto), and the transactions contemplated hereby and thereby; or (C) changes in the trading price or volume of the American Depositary Shares or the Purchaser&#8217;s ordinary shares, in and of
        themselves.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Nasdaq</font>&#8221; means The Nasdaq Global Select Market.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Option Agreement</font>&#8221; has the meaning set forth in the recitals.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Ordinary Shares</font>&#8221; has the meaning set forth in the recitals.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Purchaser</font>&#8221; has the meaning set forth in the preamble.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Permits</font>&#8221; has the meaning set forth in <u>Section 2.10</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Person</font>&#8221; means a human being, labor organization, partnership, firm, enterprise, association, joint venture, corporation, limited liability company,
        cooperative, legal representative, foundation, society, political party, estate, trust, trustee, trustee in bankruptcy, receiver or any other organization or entity whatsoever, including any Governmental Authority.</div>
      <div><br>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Proprietary Rights</font>&#8221; has the meaning set forth in <u>Section 2.11(c)</u>.</div>
      <div><br>
      </div>
      <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
        <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">79</font></div>
        <div style="page-break-after:always;" id="DSPFPageBreak">
          <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Purchase Price</font>&#8221; has the meaning set forth in <u>Section 1.1</u>.</div>
      <div><br>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Regulatory Authorizations</font>&#8221; has the meaning set forth in <u>Section 2.12</u>.</div>
      <div><br>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Rule 144</font>&#8221; has the meaning set forth in <u>Section 5.1(a)</u>.</div>
      <div><br>
      </div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">SEC</font>&#8221; means the United States Securities and Exchange Commission or any successor entity.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">SEC Documents</font>&#8221; has the meaning set forth in <u>Section 2.5(a)</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Securities Act</font>&#8221; means the Securities Act of 1933, as amended, and the rules and regulations of the SEC thereunder.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Share Cap</font>&#8221; means a number of Ordinary Shares equal to 9.99% of the Ordinary Shares issued and outstanding on the Execution Date, rounded down to nearest
        number of Ordinary Shares.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Share Value</font>&#8221; means a price per Share (rounded to the nearest cent) equal to the product of (a) 1.3 and (b) the volume weighted average price per American
        Depositary Share as displayed under the heading &#8220;Bloomberg VWAP&#8221; on Bloomberg page &#8220;BCYC AQR&#8221; (or its equivalent successor if such page is not available) for a twenty (20) Trading Day period, starting with the scheduled opening of trading on the
        twentieth (20th) Trading Day prior to the date of the Purchaser&#8217;s exercise of its option under the Option Agreement and ending with the scheduled close of trading of the primary trading session on the Trading Day prior to date of Purchaser&#8217;s
        exercise of its option under the Option Agreement, as reported on Nasdaq.com, without regard to after-hours trading or any other trading outside of the regular trading session trading hours; <font style="font-style: italic;">provided</font> that
        the Share Value shall in no event be lower than the Minimum Price (as defined in accordance with the rules and regulations of Nasdaq) on the Execution Date.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Shares</font>&#8221; has the meaning set forth in <u>Section 1.1</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Standstill Period</font>&#8221; has the meaning set forth in <u>Section 4.1</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Standstill Provisions</font>&#8221; has the meaning set forth in <u>Section 4.4</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Tax</font>&#8221; means any federal, state, local, or foreign income, gross receipts, license, payroll, employment, excise, severance, stamp, occupation, premium,
        windfall profits, environmental (including taxes under Section 59A of the Internal Revenue Code of 1986, as amended), customs duties, capital stock, share capital, franchise, profits, withholding, social security (or similar), unemployment,
        disability, real property, personal property, sales, use, transfer, registration, value added, alternative or add-on minimum, estimated, or other tax of any kind whatsoever, including any interest, penalty, or addition thereto, whether disputed or
        not.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Termination Date</font>&#8221; has the meaning set forth in <u>Section 9.1(d)</u>.</div>
      <div>&#160;</div>
      <div style="text-align: justify;"><font style="font-weight: bold;">&#8220;</font><font style="font-weight: bold; font-style: italic;">Third Party</font>&#8221; means any entity other than BicycleTx, the Company, the Purchaser or an Affiliate of BicycleTx, the
        Company, or the Purchaser.</div>
      <div>&#160;</div>
      <div style="text-align: justify;">&#8220;<font style="font-weight: bold; font-style: italic;">Trading Day</font>&#8221; means a day on which Nasdaq is open for trading.</div>
      <div>&#160;</div>
      <div style="text-align: center;">&#8220;<font style="font-weight: bold; font-style: italic;">The Company</font>&#8221; has the meaning set forth in the preamble.]</div>
      <div>&#160;</div>
      <div> <br>
      </div>
      <div style="text-align: center;"><font style="font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">80</font> </div>
      <div>
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<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>4
<FILENAME>ex31_1.htm
<DESCRIPTION>EXHIBIT 31.1
<TEXT>
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    <title>&#160;</title>
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  <div id="TRGRSegment:956881ca-11d1-4726-85b7-68a37548513a"><div style="text-align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;"><hr style="height: 4px; color: #000000; background-color: #000000; text-align: center; margin-left: auto; margin-right: auto; border: none" noshade="noshade" align="center">EXHIBIT 31.1</div><div><br></div><div style="text-align: center; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">CERTIFICATION</div><div><br></div><div style="text-align: justify; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">I, Brett P. Monia, certify that:</div><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="ze0ea17f3de0d459eafa7b84854c967cc"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">1.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">I have reviewed this Quarterly Report on Form 10-Q of Ionis Pharmaceuticals, Inc.;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zffd292c8cf9d4f309fa5ab9e97859736"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">2.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="za5ef26e39b974b1f85f79b9394d1cb74"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">3.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Based on my knowledge, the condensed consolidated financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, condensed consolidated results of operations and condensed consolidated cash flows of the registrant as of, and for, the periods presented in this quarterly report;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zecd4927ff04641f2a33ef2c75d043661"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">4.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">The registrant&#8217;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zcd0d98ddb19a489bbefaf2a093aa1c9f"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">a)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zc1eb9e4835e04f57aef38ec656e4ad30"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">b)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z1000c172dae0414ea32583f3b50af242"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">c)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Evaluated the effectiveness of the registrant&#8217;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z5ef550bbbea04cb9ae514b1500d07fc2"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">d)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Disclosed in this report any change in the registrant&#8217;s internal control over financial reporting that occurred during the registrant&#8217;s most recent fiscal quarter (the registrant&#8217;s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant&#8217;s internal control over financial reporting; and</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z1b33d2ba6f7c4551821224c39e0b7486"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">5.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">The registrant&#8217;s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant&#8217;s auditors and the audit committee of registrant&#8217;s board of directors (or persons performing the equivalent functions):</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zc87c3e8c12f6484599da8f7a5e1a733c"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">a)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant&#8217;s ability to record, process, summarize and report financial information; and</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z3c8a09b6bd4e4e1bb1219fd234463708"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">b)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&#8217;s internal control over financial reporting.</div></td></tr></table><div style="text-align: justify; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div><table cellpadding="0" cellspacing="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="zd81c25a1f31840b4bdfce91c6de51d45"><tr><td style="width: 27.59%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Dated: November 3, 2021</div></td><td style="width: 72.41%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr><tr><td style="width: 27.59%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td><td style="width: 72.41%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr><tr><td style="width: 27.59%; vertical-align: top; border-bottom: #000000 2px solid;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">/s/ BRETT P. MONIA</div></td><td style="width: 72.41%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr><tr><td style="width: 27.59%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Brett P. Monia, Ph.D.</div></td><td style="width: 72.41%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr><tr><td style="width: 27.59%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Chief Executive Officer</div></td><td style="width: 72.41%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr></table><div><br></div><div style="text-align: justify; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;"><hr style="height: 2px; color: #000000; background-color: #000000; text-align: center; margin-left: auto; margin-right: auto; border: none" noshade="noshade" align="center"></div></div>
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<TYPE>EX-31.2
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<DESCRIPTION>EXHIBIT 31.2
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  <div id="TRGRSegment:9770b480-fdae-48ad-8dab-7c414e81bcac"><div style="text-align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;"><hr style="height: 4px; color: #000000; background-color: #000000; text-align: center; margin-left: auto; margin-right: auto; border: none" noshade="noshade" align="center">EXHIBIT 31.2</div><div><br></div><div style="text-align: center; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">CERTIFICATION</div><div><br></div><div style="text-align: justify; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">I, Elizabeth L. Hougen, certify that:</div><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z0fff2b036487405a9856abd7d533b976"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">1.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">I have reviewed this Quarterly Report on Form 10-Q of Ionis Pharmaceuticals, Inc.;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zac1421eebf744836b5003c95b6a02f54"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">2.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z415d5ad2631846ce9033e28f8c8726a5"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">3.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Based on my knowledge, the condensed consolidated financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, condensed consolidated results of operations and condensed consolidated cash flows of the registrant as of, and for, the periods presented in this quarterly report;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z49cad246960447e0907d16beaf5fbef6"><tr><td style="width: 18pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">4.</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">The registrant&#8217;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z60184885999749f0ae3d6d59e6114e5a"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">a)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zfa313cabea834b658e15dd9a95bd9ebc"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">b)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="z6abf9ea32dd14eab8b6e2984cbe26ed4"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">c)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Evaluated the effectiveness of the registrant&#8217;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and</div></td></tr></table><div><br></div><table style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" cellpadding="0" cellspacing="0" id="zd19c72a6162b4beda900376004b57966"><tr><td style="width: 36pt;"></td><td style="width: 18pt; vertical-align: top; align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">d)</td><td style="width: auto; vertical-align: top; text-align: justify;"><div style="color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Disclosed in this report any change in the registrant&#8217;s internal control over financial reporting that occurred during the registrant&#8217;s most recent fiscal quarter (the registrant&#8217;s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant&#8217;s internal control over financial reporting; 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font-family: 'Times New Roman'; font-size: 10pt;">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&#8217;s internal control over financial reporting.</div></td></tr></table><div><br></div><div><br></div><table cellpadding="0" cellspacing="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="z8647a9bce5db47f4be7ab47f74e583c6"><tr><td style="width: 27.45%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;"><a name="z3a893fc63bc44c8c8146b8729339adbf"><!--Anchor--></a>Dated: November 3, 2021</div></td><td style="width: 72.55%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr><tr><td style="width: 27.45%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td><td style="width: 72.55%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr><tr><td style="width: 27.45%; vertical-align: top; border-bottom: #000000 2px solid;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">/s/ ELIZABETH L. HOUGEN</div></td><td style="width: 72.55%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr><tr><td style="width: 27.45%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Elizabeth L. Hougen</div></td><td style="width: 72.55%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr><tr><td style="width: 27.45%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Chief Financial Officer</div></td><td style="width: 72.55%; vertical-align: top;"><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">&#160;</div></td></tr></table><div><br></div><div style="text-align: left; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;"><hr style="height: 2px; color: #000000; background-color: #000000; text-align: center; margin-left: auto; margin-right: auto; border: none" noshade="noshade" align="center"></div></div>
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<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>6
<FILENAME>ex32_1.htm
<DESCRIPTION>EXHIBIT 32.1
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    <title>&#160;</title>
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  <div id="TRGRSegment:3d169df3-22e7-43e5-8644-a48762b313e4"><div style="text-align: right; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;"><hr style="height: 4px; color: #000000; background-color: #000000; text-align: center; margin-left: auto; margin-right: auto; border: none" noshade="noshade" align="center">Exhibit 32.1</div><div><br></div><div style="text-align: center; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">CERTIFICATION</div><div><br></div><div style="text-align: justify; text-indent: 36pt; color: #000000; font-family: 'Times New Roman'; font-size: 10pt;">Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, Brett P. Monia, the Chief Executive Officer of Ionis Pharmaceuticals, Inc., (the &#8220;Company&#8221;), and Elizabeth L. 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</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>8
<FILENAME>ions-20210930_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE
<TEXT>
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<TYPE>EX-101.LAB
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<FILENAME>ions-20210930_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
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    <link:label xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_AssetsFairValueDisclosure_lbl1" xml:lang="en-US" id="us-gaap_AssetsFairValueDisclosure_lbl1">Assets, Fair Value Disclosure</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_AssetsCurrentAbstract_lbl1" xml:lang="en-US" id="us-gaap_AssetsCurrentAbstract_lbl1">Assets, Current [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:title="AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:label="AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:title="AvailableForSaleDebtSecuritiesAmortizedCostBasis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl" xml:lang="en-US" id="us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_lbl">Cost</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_AvailableForSaleSecuritiesAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_AvailableForSaleSecuritiesAbstract_lbl1" xml:lang="en-US" id="us-gaap_AvailableForSaleSecuritiesAbstract_lbl1">Debt Securities, Available-for-sale [Abstract]</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractWithCustomerAssetNetCurrent" xlink:to="us-gaap_ContractWithCustomerAssetNetCurrent_lbl1" xlink:title="label: ContractWithCustomerAssetNetCurrent to us-gaap_ContractWithCustomerAssetNetCurrent_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="ContractWithCustomerLiabilityRevenueRecognized" xlink:title="ContractWithCustomerLiabilityRevenueRecognized" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xml:lang="en-US" id="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl">Revenue recognized from amounts in beginning deferred revenue balance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractWithCustomerLiabilityRevenueRecognized" xlink:to="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:title="label: ContractWithCustomerLiabilityRevenueRecognized to us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl1" xml:lang="en-US" id="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl1">Contract with Customer, Liability, Revenue Recognized</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractWithCustomerLiabilityRevenueRecognized" xlink:to="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl1" xlink:title="label: ContractWithCustomerLiabilityRevenueRecognized to us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent" xlink:label="ContractWithCustomerLiabilityNoncurrent" xlink:title="ContractWithCustomerLiabilityNoncurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl" xml:lang="en-US" id="us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl">Long-term deferred contract revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractWithCustomerLiabilityNoncurrent" xlink:to="us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl" xlink:title="label: ContractWithCustomerLiabilityNoncurrent to us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl1" xml:lang="en-US" id="us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl1">Contract with Customer, Liability, Noncurrent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractWithCustomerLiabilityNoncurrent" xlink:to="us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl1" xlink:title="label: ContractWithCustomerLiabilityNoncurrent to us-gaap_ContractWithCustomerLiabilityNoncurrent_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiability" xlink:label="ContractWithCustomerLiability" xlink:title="ContractWithCustomerLiability" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ContractWithCustomerLiability_lbl" xml:lang="en-US" id="us-gaap_ContractWithCustomerLiability_lbl">Deferred revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractWithCustomerLiability" xlink:to="us-gaap_ContractWithCustomerLiability_lbl" xlink:title="label: ContractWithCustomerLiability to us-gaap_ContractWithCustomerLiability_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiability_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ContractWithCustomerLiability_lbl1" xml:lang="en-US" id="us-gaap_ContractWithCustomerLiability_lbl1">Contract with Customer, Liability</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractWithCustomerLiability" xlink:to="us-gaap_ContractWithCustomerLiability_lbl1" xlink:title="label: ContractWithCustomerLiability to us-gaap_ContractWithCustomerLiability_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractReceivablesAbstract" xlink:label="ContractReceivablesAbstract" xlink:title="ContractReceivablesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ContractReceivablesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ContractReceivablesAbstract_lbl" xml:lang="en-US" id="us-gaap_ContractReceivablesAbstract_lbl">Contracts Receivable [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractReceivablesAbstract" xlink:to="us-gaap_ContractReceivablesAbstract_lbl" xlink:title="label: ContractReceivablesAbstract to us-gaap_ContractReceivablesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ContractReceivablesAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ContractReceivablesAbstract_lbl1" xml:lang="en-US" id="us-gaap_ContractReceivablesAbstract_lbl1">Contracts Receivable [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContractReceivablesAbstract" xlink:to="us-gaap_ContractReceivablesAbstract_lbl1" xlink:title="label: ContractReceivablesAbstract to us-gaap_ContractReceivablesAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConvertibleDebtNoncurrent" xlink:label="ConvertibleDebtNoncurrent" xlink:title="ConvertibleDebtNoncurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ConvertibleDebtNoncurrent_lbl" xml:lang="en-US" id="us-gaap_ConvertibleDebtNoncurrent_lbl">Convertible senior notes, net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtNoncurrent" xlink:to="us-gaap_ConvertibleDebtNoncurrent_lbl" xlink:title="label: ConvertibleDebtNoncurrent to us-gaap_ConvertibleDebtNoncurrent_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtNoncurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConvertibleDebtNoncurrent_lbl1" xml:lang="en-US" id="us-gaap_ConvertibleDebtNoncurrent_lbl1">Convertible senior notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtNoncurrent" xlink:to="us-gaap_ConvertibleDebtNoncurrent_lbl1" xlink:title="label: ConvertibleDebtNoncurrent to us-gaap_ConvertibleDebtNoncurrent_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConvertibleDebtCurrent" xlink:label="ConvertibleDebtCurrent" xlink:title="ConvertibleDebtCurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConvertibleDebtCurrent_lbl" xml:lang="en-US" id="us-gaap_ConvertibleDebtCurrent_lbl">1 percent convertible senior notes, net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtCurrent" xlink:to="us-gaap_ConvertibleDebtCurrent_lbl" xlink:title="label: ConvertibleDebtCurrent to us-gaap_ConvertibleDebtCurrent_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:label="ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:title="ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl" xml:lang="en-US" id="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl">Convertible Debt [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:to="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl" xlink:title="label: ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract to us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl1" xml:lang="en-US" id="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl1">Convertible Notes Payable [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:to="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl1" xlink:title="label: ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract to us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConvertibleDebtTableTextBlock" xlink:label="ConvertibleDebtTableTextBlock" xlink:title="ConvertibleDebtTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ConvertibleDebtTableTextBlock_lbl" xml:lang="en-US" id="us-gaap_ConvertibleDebtTableTextBlock_lbl">Convertible Notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtTableTextBlock" xlink:to="us-gaap_ConvertibleDebtTableTextBlock_lbl" xlink:title="label: ConvertibleDebtTableTextBlock to us-gaap_ConvertibleDebtTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtTableTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConvertibleDebtTableTextBlock_lbl1" xml:lang="en-US" id="us-gaap_ConvertibleDebtTableTextBlock_lbl1">Convertible Debt [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtTableTextBlock" xlink:to="us-gaap_ConvertibleDebtTableTextBlock_lbl1" xlink:title="label: ConvertibleDebtTableTextBlock to us-gaap_ConvertibleDebtTableTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="CorporateDebtSecuritiesMember" xlink:title="CorporateDebtSecuritiesMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CorporateDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_CorporateDebtSecuritiesMember_lbl" xml:lang="en-US" id="us-gaap_CorporateDebtSecuritiesMember_lbl">Corporate Debt Securities [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CorporateDebtSecuritiesMember" xlink:to="us-gaap_CorporateDebtSecuritiesMember_lbl" xlink:title="label: CorporateDebtSecuritiesMember to us-gaap_CorporateDebtSecuritiesMember_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CorporateDebtSecuritiesMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CorporateDebtSecuritiesMember_lbl1" xml:lang="en-US" id="us-gaap_CorporateDebtSecuritiesMember_lbl1">Corporate Debt Securities [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CorporateDebtSecuritiesMember" xlink:to="us-gaap_CorporateDebtSecuritiesMember_lbl1" xlink:title="label: CorporateDebtSecuritiesMember to us-gaap_CorporateDebtSecuritiesMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="CostOfGoodsAndServicesSold" xlink:title="CostOfGoodsAndServicesSold" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_CostOfGoodsAndServicesSold_lbl" xml:lang="en-US" id="us-gaap_CostOfGoodsAndServicesSold_lbl">Cost of sales</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfGoodsAndServicesSold" xlink:to="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:title="label: CostOfGoodsAndServicesSold to us-gaap_CostOfGoodsAndServicesSold_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CostOfGoodsAndServicesSold_lbl1" xml:lang="en-US" id="us-gaap_CostOfGoodsAndServicesSold_lbl1">Cost of Goods and Services Sold</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfGoodsAndServicesSold" xlink:to="us-gaap_CostOfGoodsAndServicesSold_lbl1" xlink:title="label: CostOfGoodsAndServicesSold to us-gaap_CostOfGoodsAndServicesSold_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfSalesPolicyTextBlock" xlink:label="CostOfSalesPolicyTextBlock" xlink:title="CostOfSalesPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostOfSalesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_CostOfSalesPolicyTextBlock_lbl" xml:lang="en-US" id="us-gaap_CostOfSalesPolicyTextBlock_lbl">Cost of Sales</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfSalesPolicyTextBlock" xlink:to="us-gaap_CostOfSalesPolicyTextBlock_lbl" xlink:title="label: CostOfSalesPolicyTextBlock to us-gaap_CostOfSalesPolicyTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostOfSalesPolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CostOfSalesPolicyTextBlock_lbl1" xml:lang="en-US" id="us-gaap_CostOfSalesPolicyTextBlock_lbl1">Cost of Goods and Service [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfSalesPolicyTextBlock" xlink:to="us-gaap_CostOfSalesPolicyTextBlock_lbl1" xlink:title="label: CostOfSalesPolicyTextBlock to us-gaap_CostOfSalesPolicyTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfSalesMember" xlink:label="CostOfSalesMember" xlink:title="CostOfSalesMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostOfSalesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_CostOfSalesMember_lbl" xml:lang="en-US" id="us-gaap_CostOfSalesMember_lbl">Cost of Sales [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfSalesMember" xlink:to="us-gaap_CostOfSalesMember_lbl" xlink:title="label: CostOfSalesMember to us-gaap_CostOfSalesMember_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostOfSalesMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CostOfSalesMember_lbl1" xml:lang="en-US" id="us-gaap_CostOfSalesMember_lbl1">Cost of Sales [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostOfSalesMember" xlink:to="us-gaap_CostOfSalesMember_lbl1" xlink:title="label: CostOfSalesMember to us-gaap_CostOfSalesMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="CostsAndExpenses" xlink:title="CostsAndExpenses" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_CostsAndExpenses_lbl" xml:lang="en-US" id="us-gaap_CostsAndExpenses_lbl">Total operating expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpenses" xlink:to="us-gaap_CostsAndExpenses_lbl" xlink:title="label: CostsAndExpenses to us-gaap_CostsAndExpenses_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostsAndExpenses_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CostsAndExpenses_lbl1" xml:lang="en-US" id="us-gaap_CostsAndExpenses_lbl1">Costs and Expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpenses" xlink:to="us-gaap_CostsAndExpenses_lbl1" xlink:title="label: CostsAndExpenses to us-gaap_CostsAndExpenses_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="CostsAndExpensesAbstract" xlink:title="CostsAndExpensesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostsAndExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_CostsAndExpensesAbstract_lbl" xml:lang="en-US" id="us-gaap_CostsAndExpensesAbstract_lbl">Expenses:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpensesAbstract" xlink:to="us-gaap_CostsAndExpensesAbstract_lbl" xlink:title="label: CostsAndExpensesAbstract to us-gaap_CostsAndExpensesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CostsAndExpensesAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CostsAndExpensesAbstract_lbl1" xml:lang="en-US" id="us-gaap_CostsAndExpensesAbstract_lbl1">Costs and Expenses [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CostsAndExpensesAbstract" xlink:to="us-gaap_CostsAndExpensesAbstract_lbl1" xlink:title="label: CostsAndExpensesAbstract to us-gaap_CostsAndExpensesAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CreditConcentrationRiskMember" xlink:label="CreditConcentrationRiskMember" xlink:title="CreditConcentrationRiskMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CreditConcentrationRiskMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CreditConcentrationRiskMember_lbl" xml:lang="en-US" id="us-gaap_CreditConcentrationRiskMember_lbl">Credit Concentration [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CreditConcentrationRiskMember" xlink:to="us-gaap_CreditConcentrationRiskMember_lbl" xlink:title="label: CreditConcentrationRiskMember to us-gaap_CreditConcentrationRiskMember_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_CustomerConcentrationRiskMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_CustomerConcentrationRiskMember_lbl" xml:lang="en-US" id="us-gaap_CustomerConcentrationRiskMember_lbl">Strategic Partner [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" xlink:label="DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" xlink:title="DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtSecuritiesMember" xlink:label="DebtSecuritiesMember" xlink:title="DebtSecuritiesMember" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_DebtSecuritiesMember_lbl1" xml:lang="en-US" id="us-gaap_DebtSecuritiesMember_lbl1">Debt Securities [Member]</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xml:lang="en-US" id="us-gaap_DeferredIncomeTaxAssetsNet_lbl">Net deferred tax assets</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredIncomeTaxAssetsNet" xlink:to="us-gaap_DeferredIncomeTaxAssetsNet_lbl1" xlink:title="label: DeferredIncomeTaxAssetsNet to us-gaap_DeferredIncomeTaxAssetsNet_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="DeferredFinanceCostsNet" xlink:title="DeferredFinanceCostsNet" />
    <link:label xlink:type="resource" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_DeferredFinanceCostsNet_lbl" xml:lang="en-US" id="us-gaap_DeferredFinanceCostsNet_lbl">Unamortized debt issuance costs</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xml:lang="en-US" id="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl">Provision for deferred income taxes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:title="label: DeferredIncomeTaxExpenseBenefit to us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl1" xml:lang="en-US" id="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl1">Deferred Income Tax Expense (Benefit)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl1" xlink:title="label: DeferredIncomeTaxExpenseBenefit to us-gaap_DeferredIncomeTaxExpenseBenefit_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Depreciation" xlink:label="Depreciation" xlink:title="Depreciation" />
    <link:label xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_Depreciation_lbl" xml:lang="en-US" id="us-gaap_Depreciation_lbl">Depreciation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Depreciation" xlink:to="us-gaap_Depreciation_lbl" xlink:title="label: Depreciation to us-gaap_Depreciation_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_Depreciation_lbl1" xml:lang="en-US" id="us-gaap_Depreciation_lbl1">Depreciation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Depreciation" xlink:to="us-gaap_Depreciation_lbl1" xlink:title="label: Depreciation to us-gaap_Depreciation_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:label="DerivativesPolicyTextBlock" xlink:title="DerivativesPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_DerivativesPolicyTextBlock_lbl" xml:lang="en-US" id="us-gaap_DerivativesPolicyTextBlock_lbl">Call Spread</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_DerivativesPolicyTextBlock_lbl1" xml:lang="en-US" id="us-gaap_DerivativesPolicyTextBlock_lbl1">Derivatives, Policy [Policy Text Block]</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xml:lang="en-US" id="us-gaap_EarningsPerSharePolicyTextBlock_lbl">Basic and Diluted Net Loss per Share</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_EarningsPerSharePolicyTextBlock_lbl1" xml:lang="en-US" id="us-gaap_EarningsPerSharePolicyTextBlock_lbl1">Earnings Per Share, Policy [Policy Text Block]</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_EarningsPerShareBasic_lbl" xml:lang="en-US" id="us-gaap_EarningsPerShareBasic_lbl">Basic net loss per share (in dollars per share)</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasicAbstract" xlink:label="EarningsPerShareBasicAbstract" xlink:title="EarningsPerShareBasicAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EmployeeStockMember" xlink:to="us-gaap_EmployeeStockMember_lbl" xlink:title="label: EmployeeStockMember to us-gaap_EmployeeStockMember_lbl" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:label="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:title="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInInventories" xlink:to="us-gaap_IncreaseDecreaseInInventories_lbl1" xlink:title="label: IncreaseDecreaseInInventories to us-gaap_IncreaseDecreaseInInventories_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="IncreaseDecreaseInOperatingCapitalAbstract" xlink:title="IncreaseDecreaseInOperatingCapitalAbstract" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="IncreaseDecreaseInOtherOperatingAssets" xlink:title="IncreaseDecreaseInOtherOperatingAssets" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryFinishedGoods_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryFinishedGoods_lbl1" xml:lang="en-US" id="us-gaap_InventoryFinishedGoods_lbl1">Inventory, Finished Goods, Gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryFinishedGoods" xlink:to="us-gaap_InventoryFinishedGoods_lbl1" xlink:title="label: InventoryFinishedGoods to us-gaap_InventoryFinishedGoods_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryWorkInProcess" xlink:label="InventoryWorkInProcess" xlink:title="InventoryWorkInProcess" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryWorkInProcess_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InventoryWorkInProcess_lbl" xml:lang="en-US" id="us-gaap_InventoryWorkInProcess_lbl">Work in process</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryWorkInProcess" xlink:to="us-gaap_InventoryWorkInProcess_lbl" xlink:title="label: InventoryWorkInProcess to us-gaap_InventoryWorkInProcess_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryWorkInProcess_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryWorkInProcess_lbl1" xml:lang="en-US" id="us-gaap_InventoryWorkInProcess_lbl1">Inventory, Work in Process, Gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryWorkInProcess" xlink:to="us-gaap_InventoryWorkInProcess_lbl1" xlink:title="label: InventoryWorkInProcess to us-gaap_InventoryWorkInProcess_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="InventoryPolicyTextBlock" xlink:title="InventoryPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InventoryPolicyTextBlock_lbl" xml:lang="en-US" id="us-gaap_InventoryPolicyTextBlock_lbl">Inventory Valuation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryPolicyTextBlock" xlink:to="us-gaap_InventoryPolicyTextBlock_lbl" xlink:title="label: InventoryPolicyTextBlock to us-gaap_InventoryPolicyTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryPolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryPolicyTextBlock_lbl1" xml:lang="en-US" id="us-gaap_InventoryPolicyTextBlock_lbl1">Inventory, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryPolicyTextBlock" xlink:to="us-gaap_InventoryPolicyTextBlock_lbl1" xlink:title="label: InventoryPolicyTextBlock to us-gaap_InventoryPolicyTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet" xlink:label="InventoryNet" xlink:title="InventoryNet" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InventoryNet_lbl" xml:lang="en-US" id="us-gaap_InventoryNet_lbl">Inventories</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryNet" xlink:to="us-gaap_InventoryNet_lbl" xlink:title="label: InventoryNet to us-gaap_InventoryNet_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_InventoryNet_lbl1" xml:lang="en-US" id="us-gaap_InventoryNet_lbl1">Total inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryNet" xlink:to="us-gaap_InventoryNet_lbl1" xlink:title="label: InventoryNet to us-gaap_InventoryNet_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryNet_lbl2" xml:lang="en-US" id="us-gaap_InventoryNet_lbl2">Inventory, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryNet" xlink:to="us-gaap_InventoryNet_lbl2" xlink:title="label: InventoryNet to us-gaap_InventoryNet_lbl2" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNetAbstract" xlink:label="InventoryNetAbstract" xlink:title="InventoryNetAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InventoryNetAbstract_lbl" xml:lang="en-US" id="us-gaap_InventoryNetAbstract_lbl">Inventory Valuation [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryNetAbstract" xlink:to="us-gaap_InventoryNetAbstract_lbl" xlink:title="label: InventoryNetAbstract to us-gaap_InventoryNetAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryNetAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryNetAbstract_lbl1" xml:lang="en-US" id="us-gaap_InventoryNetAbstract_lbl1">Inventory, Net [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryNetAbstract" xlink:to="us-gaap_InventoryNetAbstract_lbl1" xlink:title="label: InventoryNetAbstract to us-gaap_InventoryNetAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryRawMaterials" xlink:label="InventoryRawMaterials" xlink:title="InventoryRawMaterials" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryRawMaterials_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InventoryRawMaterials_lbl" xml:lang="en-US" id="us-gaap_InventoryRawMaterials_lbl">Raw materials</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryRawMaterials" xlink:to="us-gaap_InventoryRawMaterials_lbl" xlink:title="label: InventoryRawMaterials to us-gaap_InventoryRawMaterials_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryRawMaterials_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryRawMaterials_lbl1" xml:lang="en-US" id="us-gaap_InventoryRawMaterials_lbl1">Inventory, Raw Materials, Gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryRawMaterials" xlink:to="us-gaap_InventoryRawMaterials_lbl1" xlink:title="label: InventoryRawMaterials to us-gaap_InventoryRawMaterials_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentTextBlock" xlink:label="InvestmentTextBlock" xlink:title="InvestmentTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InvestmentTextBlock_lbl" xml:lang="en-US" id="us-gaap_InvestmentTextBlock_lbl">Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentTextBlock" xlink:to="us-gaap_InvestmentTextBlock_lbl" xlink:title="label: InvestmentTextBlock to us-gaap_InvestmentTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentTextBlock_lbl1" xml:lang="en-US" id="us-gaap_InvestmentTextBlock_lbl1">Investment [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentTextBlock" xlink:to="us-gaap_InvestmentTextBlock_lbl1" xlink:title="label: InvestmentTextBlock to us-gaap_InvestmentTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentHoldingsLineItems" xlink:label="InvestmentHoldingsLineItems" xlink:title="InvestmentHoldingsLineItems" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentHoldingsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentHoldingsLineItems_lbl" xml:lang="en-US" id="us-gaap_InvestmentHoldingsLineItems_lbl">Investment Holdings [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentHoldingsLineItems" xlink:to="us-gaap_InvestmentHoldingsLineItems_lbl" xlink:title="label: InvestmentHoldingsLineItems to us-gaap_InvestmentHoldingsLineItems_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentIncomeNet" xlink:label="InvestmentIncomeNet" xlink:title="InvestmentIncomeNet" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InvestmentIncomeNet_lbl" xml:lang="en-US" id="us-gaap_InvestmentIncomeNet_lbl">Investment income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeNet" xlink:to="us-gaap_InvestmentIncomeNet_lbl" xlink:title="label: InvestmentIncomeNet to us-gaap_InvestmentIncomeNet_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeNet_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentIncomeNet_lbl1" xml:lang="en-US" id="us-gaap_InvestmentIncomeNet_lbl1">Investment Income, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeNet" xlink:to="us-gaap_InvestmentIncomeNet_lbl1" xlink:title="label: InvestmentIncomeNet to us-gaap_InvestmentIncomeNet_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentPolicyTextBlock" xlink:label="InvestmentPolicyTextBlock" xlink:title="InvestmentPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InvestmentPolicyTextBlock_lbl" xml:lang="en-US" id="us-gaap_InvestmentPolicyTextBlock_lbl">Cash, Cash Equivalents and Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPolicyTextBlock" xlink:to="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:title="label: InvestmentPolicyTextBlock to us-gaap_InvestmentPolicyTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentPolicyTextBlock_lbl1" xml:lang="en-US" id="us-gaap_InvestmentPolicyTextBlock_lbl1">Investment, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentPolicyTextBlock" xlink:to="us-gaap_InvestmentPolicyTextBlock_lbl1" xlink:title="label: InvestmentPolicyTextBlock to us-gaap_InvestmentPolicyTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentSecondaryCategorizationAxis" xlink:label="InvestmentSecondaryCategorizationAxis" xlink:title="InvestmentSecondaryCategorizationAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentSecondaryCategorizationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentSecondaryCategorizationAxis_lbl" xml:lang="en-US" id="us-gaap_InvestmentSecondaryCategorizationAxis_lbl">Investment Secondary Categorization [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentSecondaryCategorizationAxis" xlink:to="us-gaap_InvestmentSecondaryCategorizationAxis_lbl" xlink:title="label: InvestmentSecondaryCategorizationAxis to us-gaap_InvestmentSecondaryCategorizationAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentHoldingsTable" xlink:label="InvestmentHoldingsTable" xlink:title="InvestmentHoldingsTable" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentHoldingsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentHoldingsTable_lbl" xml:lang="en-US" id="us-gaap_InvestmentHoldingsTable_lbl">Investment Holdings [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentHoldingsTable" xlink:to="us-gaap_InvestmentHoldingsTable_lbl" xlink:title="label: InvestmentHoldingsTable to us-gaap_InvestmentHoldingsTable_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentsBySecondaryCategorizationDomain" xlink:label="InvestmentsBySecondaryCategorizationDomain" xlink:title="InvestmentsBySecondaryCategorizationDomain" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentsBySecondaryCategorizationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentsBySecondaryCategorizationDomain_lbl" xml:lang="en-US" id="us-gaap_InvestmentsBySecondaryCategorizationDomain_lbl">Investments by Secondary Categorization [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsBySecondaryCategorizationDomain" xlink:to="us-gaap_InvestmentsBySecondaryCategorizationDomain_lbl" xlink:title="label: InvestmentsBySecondaryCategorizationDomain to us-gaap_InvestmentsBySecondaryCategorizationDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:label="InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:title="InvestmentsClassifiedByContractualMaturityDateTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl" xml:lang="en-US" id="us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl">Contract Maturity of Available-for-Sale Securities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:to="us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl" xlink:title="label: InvestmentsClassifiedByContractualMaturityDateTableTextBlock to us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl1" xml:lang="en-US" id="us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl1">Investments Classified by Contractual Maturity Date [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:to="us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl1" xlink:title="label: InvestmentsClassifiedByContractualMaturityDateTableTextBlock to us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentsAbstract" xlink:label="InvestmentsAbstract" xlink:title="InvestmentsAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentsAbstract_lbl" xml:lang="en-US" id="us-gaap_InvestmentsAbstract_lbl">Investments [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsAbstract" xlink:to="us-gaap_InvestmentsAbstract_lbl" xlink:title="label: InvestmentsAbstract to us-gaap_InvestmentsAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentsAllOtherInvestmentsAbstract" xlink:label="InvestmentsAllOtherInvestmentsAbstract" xlink:title="InvestmentsAllOtherInvestmentsAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl" xml:lang="en-US" id="us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl">Ownership Interests in Private and Public Companies [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsAllOtherInvestmentsAbstract" xlink:to="us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl" xlink:title="label: InvestmentsAllOtherInvestmentsAbstract to us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl1" xml:lang="en-US" id="us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl1">Investments, All Other Investments [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsAllOtherInvestmentsAbstract" xlink:to="us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl1" xlink:title="label: InvestmentsAllOtherInvestmentsAbstract to us-gaap_InvestmentsAllOtherInvestmentsAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="LesseeLeasesPolicyTextBlock" xlink:title="LesseeLeasesPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xml:lang="en-US" id="us-gaap_LesseeLeasesPolicyTextBlock_lbl">Leases</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeLeasesPolicyTextBlock" xlink:to="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xlink:title="label: LesseeLeasesPolicyTextBlock to us-gaap_LesseeLeasesPolicyTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LesseeLeasesPolicyTextBlock_lbl1" xml:lang="en-US" id="us-gaap_LesseeLeasesPolicyTextBlock_lbl1">Lessee, Leases [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeLeasesPolicyTextBlock" xlink:to="us-gaap_LesseeLeasesPolicyTextBlock_lbl1" xlink:title="label: LesseeLeasesPolicyTextBlock to us-gaap_LesseeLeasesPolicyTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="LesseeOperatingLeaseLiabilityPaymentsDue" xlink:title="LesseeOperatingLeaseLiabilityPaymentsDue" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:title="label: LesseeOperatingLeaseLiabilityPaymentsDue to us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl1" xml:lang="en-US" id="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl1">Lessee, Operating Lease, Liability, to be Paid</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl1" xlink:title="label: LesseeOperatingLeaseLiabilityPaymentsDue to us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseTermOfContract" xlink:label="LesseeOperatingLeaseTermOfContract" xlink:title="LesseeOperatingLeaseTermOfContract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LesseeOperatingLeaseTermOfContract_lbl" xml:lang="en-US" id="us-gaap_LesseeOperatingLeaseTermOfContract_lbl">Initial term of operating lease</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseTermOfContract" xlink:to="us-gaap_LesseeOperatingLeaseTermOfContract_lbl" xlink:title="label: LesseeOperatingLeaseTermOfContract to us-gaap_LesseeOperatingLeaseTermOfContract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseTermOfContract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LesseeOperatingLeaseTermOfContract_lbl1" xml:lang="en-US" id="us-gaap_LesseeOperatingLeaseTermOfContract_lbl1">Lessee, Operating Lease, Term of Contract</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseTermOfContract" xlink:to="us-gaap_LesseeOperatingLeaseTermOfContract_lbl1" xlink:title="label: LesseeOperatingLeaseTermOfContract to us-gaap_LesseeOperatingLeaseTermOfContract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm" xlink:label="LesseeOperatingLeaseRenewalTerm" xlink:title="LesseeOperatingLeaseRenewalTerm" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl" xml:lang="en-US" id="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl">Term of operating lease extension</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseRenewalTerm" xlink:to="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl" xlink:title="label: LesseeOperatingLeaseRenewalTerm to us-gaap_LesseeOperatingLeaseRenewalTerm_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl1" xml:lang="en-US" id="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl1">Lessee, Operating Lease, Renewal Term</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseRenewalTerm" xlink:to="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl1" xlink:title="label: LesseeOperatingLeaseRenewalTerm to us-gaap_LesseeOperatingLeaseRenewalTerm_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeDisclosureAbstract" xlink:label="LesseeDisclosureAbstract" xlink:title="LesseeDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LesseeDisclosureAbstract_lbl" xml:lang="en-US" id="us-gaap_LesseeDisclosureAbstract_lbl">Operating Leases [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeDisclosureAbstract" xlink:to="us-gaap_LesseeDisclosureAbstract_lbl" xlink:title="label: LesseeDisclosureAbstract to us-gaap_LesseeDisclosureAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeDisclosureAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LesseeDisclosureAbstract_lbl1" xml:lang="en-US" id="us-gaap_LesseeDisclosureAbstract_lbl1">Lessee Disclosure [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeDisclosureAbstract" xlink:to="us-gaap_LesseeDisclosureAbstract_lbl1" xlink:title="label: LesseeDisclosureAbstract to us-gaap_LesseeDisclosureAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable" xlink:label="LesseeLeaseDescriptionTable" xlink:title="LesseeLeaseDescriptionTable" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LesseeLeaseDescriptionTable_lbl" xml:lang="en-US" id="us-gaap_LesseeLeaseDescriptionTable_lbl">Lessee, Lease, Description [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeLeaseDescriptionTable" xlink:to="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:title="label: LesseeLeaseDescriptionTable to us-gaap_LesseeLeaseDescriptionTable_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems" xlink:label="LesseeLeaseDescriptionLineItems" xlink:title="LesseeLeaseDescriptionLineItems" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xml:lang="en-US" id="us-gaap_LesseeLeaseDescriptionLineItems_lbl">Lessee, Lease, Description [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeLeaseDescriptionLineItems" xlink:to="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xlink:title="label: LesseeLeaseDescriptionLineItems to us-gaap_LesseeLeaseDescriptionLineItems_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities" xlink:label="Liabilities" xlink:title="Liabilities" />
    <link:label xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_Liabilities_lbl" xml:lang="en-US" id="us-gaap_Liabilities_lbl">Total liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Liabilities" xlink:to="us-gaap_Liabilities_lbl" xlink:title="label: Liabilities to us-gaap_Liabilities_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_Liabilities_lbl1" xml:lang="en-US" id="us-gaap_Liabilities_lbl1">Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Liabilities" xlink:to="us-gaap_Liabilities_lbl1" xlink:title="label: Liabilities to us-gaap_Liabilities_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="LiabilitiesAndStockholdersEquityAbstract" xlink:title="LiabilitiesAndStockholdersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl">LIABILITIES AND STOCKHOLDERS' EQUITY</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:title="label: LiabilitiesAndStockholdersEquityAbstract to us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl1" xml:lang="en-US" id="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl1">Liabilities and Equity [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl1" xlink:title="label: LiabilitiesAndStockholdersEquityAbstract to us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesAndStockholdersEquity_lbl">Total liabilities and stockholders' equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:title="label: LiabilitiesAndStockholdersEquity to us-gaap_LiabilitiesAndStockholdersEquity_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesAndStockholdersEquity_lbl1" xml:lang="en-US" id="us-gaap_LiabilitiesAndStockholdersEquity_lbl1">Liabilities and Equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl1" xlink:title="label: LiabilitiesAndStockholdersEquity to us-gaap_LiabilitiesAndStockholdersEquity_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="LiabilitiesCurrent" xlink:title="LiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesCurrent_lbl">Total current liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl" xlink:title="label: LiabilitiesCurrent to us-gaap_LiabilitiesCurrent_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesCurrent_lbl1" xml:lang="en-US" id="us-gaap_LiabilitiesCurrent_lbl1">Liabilities, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl1" xlink:title="label: LiabilitiesCurrent to us-gaap_LiabilitiesCurrent_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="LiabilitiesCurrentAbstract" xlink:title="LiabilitiesCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesCurrentAbstract_lbl">Current liabilities:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:title="label: LiabilitiesCurrentAbstract to us-gaap_LiabilitiesCurrentAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesCurrentAbstract_lbl1" xml:lang="en-US" id="us-gaap_LiabilitiesCurrentAbstract_lbl1">Liabilities, Current [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl1" xlink:title="label: LiabilitiesCurrentAbstract to us-gaap_LiabilitiesCurrentAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract" xlink:label="LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract" xlink:title="LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl" xml:lang="en-US" id="us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl">Convertible Debt [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract" xlink:to="us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl" xlink:title="label: LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract to us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl1" xml:lang="en-US" id="us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl1">Long-term Debt, by Type, Current and Noncurrent [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract" xlink:to="us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl1" xlink:title="label: LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract to us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermLoansFromBank" xlink:label="LongTermLoansFromBank" xlink:title="LongTermLoansFromBank" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermLoansFromBank_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LongTermLoansFromBank_lbl" xml:lang="en-US" id="us-gaap_LongTermLoansFromBank_lbl">Long-term mortgage debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermLoansFromBank" xlink:to="us-gaap_LongTermLoansFromBank_lbl" xlink:title="label: LongTermLoansFromBank to us-gaap_LongTermLoansFromBank_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MinorityInterestPeriodIncreaseDecrease" xlink:label="MinorityInterestPeriodIncreaseDecrease" xlink:title="MinorityInterestPeriodIncreaseDecrease" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl" xml:lang="en-US" id="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl">Noncontrolling interest in Akcea Therapeutics, Inc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestPeriodIncreaseDecrease" xlink:to="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl" xlink:title="label: MinorityInterestPeriodIncreaseDecrease to us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl1" xml:lang="en-US" id="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl1">Noncontrolling Interest, Period Increase (Decrease)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestPeriodIncreaseDecrease" xlink:to="us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl1" xlink:title="label: MinorityInterestPeriodIncreaseDecrease to us-gaap_MinorityInterestPeriodIncreaseDecrease_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:label="MinorityInterestOwnershipPercentageByParent" xlink:title="MinorityInterestOwnershipPercentageByParent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MinorityInterestOwnershipPercentageByParent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_MinorityInterestOwnershipPercentageByParent_lbl" xml:lang="en-US" id="us-gaap_MinorityInterestOwnershipPercentageByParent_lbl">Percentage ownership</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestOwnershipPercentageByParent" xlink:to="us-gaap_MinorityInterestOwnershipPercentageByParent_lbl" xlink:title="label: MinorityInterestOwnershipPercentageByParent to us-gaap_MinorityInterestOwnershipPercentageByParent_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MinorityInterestOwnershipPercentageByParent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_MinorityInterestOwnershipPercentageByParent_lbl1" xml:lang="en-US" id="us-gaap_MinorityInterestOwnershipPercentageByParent_lbl1">Noncontrolling Interest, Ownership Percentage by Parent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestOwnershipPercentageByParent" xlink:to="us-gaap_MinorityInterestOwnershipPercentageByParent_lbl1" xlink:title="label: MinorityInterestOwnershipPercentageByParent to us-gaap_MinorityInterestOwnershipPercentageByParent_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MinorityInterestLineItems" xlink:label="MinorityInterestLineItems" xlink:title="MinorityInterestLineItems" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MinorityInterestLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_MinorityInterestLineItems_lbl" xml:lang="en-US" id="us-gaap_MinorityInterestLineItems_lbl">Noncontrolling Interest [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinorityInterestLineItems" xlink:to="us-gaap_MinorityInterestLineItems_lbl" xlink:title="label: MinorityInterestLineItems to us-gaap_MinorityInterestLineItems_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MinorityInterestTable" xlink:label="MinorityInterestTable" xlink:title="MinorityInterestTable" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MinorityInterestTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_MinorityInterestTable_lbl" xml:lang="en-US" id="us-gaap_MinorityInterestTable_lbl">Noncontrolling Interest [Table]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireEquitySecuritiesFvNi" xlink:label="PaymentsToAcquireEquitySecuritiesFvNi" xlink:title="PaymentsToAcquireEquitySecuritiesFvNi" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl" xml:lang="en-US" id="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl">Purchase of Bicycle Therapeutics plc common stock</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl1" xml:lang="en-US" id="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl1">Payments to Acquire Equity Securities, FV-NI</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireEquitySecuritiesFvNi" xlink:to="us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl1" xlink:title="label: PaymentsToAcquireEquitySecuritiesFvNi to us-gaap_PaymentsToAcquireEquitySecuritiesFvNi_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForHedgeFinancingActivities" xlink:label="PaymentsForHedgeFinancingActivities" xlink:title="PaymentsForHedgeFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForHedgeFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_PaymentsForHedgeFinancingActivities_lbl" xml:lang="en-US" id="us-gaap_PaymentsForHedgeFinancingActivities_lbl">Purchase of note hedges</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForHedgeFinancingActivities_lbl1" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsForHedgeFinancingActivities_lbl1" xml:lang="en-US" id="us-gaap_PaymentsForHedgeFinancingActivities_lbl1">Purchase of note hedges</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForHedgeFinancingActivities" xlink:to="us-gaap_PaymentsForHedgeFinancingActivities_lbl1" xlink:title="label: PaymentsForHedgeFinancingActivities to us-gaap_PaymentsForHedgeFinancingActivities_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForHedgeFinancingActivities_lbl2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsForHedgeFinancingActivities_lbl2" xml:lang="en-US" id="us-gaap_PaymentsForHedgeFinancingActivities_lbl2">Payments for Hedge, Financing Activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForHedgeFinancingActivities" xlink:to="us-gaap_PaymentsForHedgeFinancingActivities_lbl2" xlink:title="label: PaymentsForHedgeFinancingActivities to us-gaap_PaymentsForHedgeFinancingActivities_lbl2" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:title="PaymentsRelatedToTaxWithholdingForShareBasedCompensation" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl" xml:lang="en-US" id="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:to="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl" xlink:title="label: PaymentsRelatedToTaxWithholdingForShareBasedCompensation to us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl1" xml:lang="en-US" id="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl1">Payment, Tax Withholding, Share-based Payment Arrangement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:to="us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl1" xlink:title="label: PaymentsRelatedToTaxWithholdingForShareBasedCompensation to us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="PaymentsForRepurchaseOfCommonStock" xlink:title="PaymentsForRepurchaseOfCommonStock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xml:lang="en-US" id="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl">Repurchases and retirements of common stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForRepurchaseOfCommonStock" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:title="label: PaymentsForRepurchaseOfCommonStock to us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1" xml:lang="en-US" id="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1">Payments for Repurchase of Common Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForRepurchaseOfCommonStock" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1" xlink:title="label: PaymentsForRepurchaseOfCommonStock to us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="PaymentsOfDebtIssuanceCosts" xlink:title="PaymentsOfDebtIssuanceCosts" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:title="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xml:lang="en-US" id="us-gaap_PaymentsOfDebtIssuanceCosts_lbl">0 percent convertible senior notes issuance costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsOfDebtIssuanceCosts" xlink:to="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xlink:title="label: PaymentsOfDebtIssuanceCosts to us-gaap_PaymentsOfDebtIssuanceCosts_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsOfDebtIssuanceCosts_lbl1" xml:lang="en-US" id="us-gaap_PaymentsOfDebtIssuanceCosts_lbl1">Payments of Debt Issuance Costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsOfDebtIssuanceCosts" xlink:to="us-gaap_PaymentsOfDebtIssuanceCosts_lbl1" xlink:title="label: PaymentsOfDebtIssuanceCosts to us-gaap_PaymentsOfDebtIssuanceCosts_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:label="PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:title="PaymentsToAcquireAvailableForSaleSecuritiesDebt" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xml:lang="en-US" id="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl">Purchases of short-term investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:to="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" xlink:title="label: PaymentsToAcquireAvailableForSaleSecuritiesDebt to us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl1" xml:lang="en-US" id="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl1">Payments to Acquire Debt Securities, Available-for-sale</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:to="us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl1" xlink:title="label: PaymentsToAcquireAvailableForSaleSecuritiesDebt to us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRestructuring" xlink:label="PaymentsForRestructuring" xlink:title="PaymentsForRestructuring" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForRestructuring_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsForRestructuring_lbl" xml:lang="en-US" id="us-gaap_PaymentsForRestructuring_lbl">Amounts paid during the period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForRestructuring" xlink:to="us-gaap_PaymentsForRestructuring_lbl" xlink:title="label: PaymentsForRestructuring to us-gaap_PaymentsForRestructuring_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForRestructuring_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsForRestructuring_lbl1" xml:lang="en-US" id="us-gaap_PaymentsForRestructuring_lbl1">Payments for Restructuring</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForRestructuring" xlink:to="us-gaap_PaymentsForRestructuring_lbl1" xlink:title="label: PaymentsForRestructuring to us-gaap_PaymentsForRestructuring_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities" xlink:label="PaymentsOfMergerRelatedCostsFinancingActivities" xlink:title="PaymentsOfMergerRelatedCostsFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl" xml:lang="en-US" id="us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl">Payments of transaction costs for Akcea merger</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsOfMergerRelatedCostsFinancingActivities" xlink:to="us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl" xlink:title="label: PaymentsOfMergerRelatedCostsFinancingActivities to us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl1" xml:lang="en-US" id="us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl1">Payments of Merger Related Costs, Financing Activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsOfMergerRelatedCostsFinancingActivities" xlink:to="us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl1" xlink:title="label: PaymentsOfMergerRelatedCostsFinancingActivities to us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="PaymentsToAcquireIntangibleAssets" xlink:title="PaymentsToAcquireIntangibleAssets" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsToAcquireIntangibleAssets_lbl" xml:lang="en-US" id="us-gaap_PaymentsToAcquireIntangibleAssets_lbl">Acquisition of patents, net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireIntangibleAssets" xlink:to="us-gaap_PaymentsToAcquireIntangibleAssets_lbl" xlink:title="label: PaymentsToAcquireIntangibleAssets to us-gaap_PaymentsToAcquireIntangibleAssets_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireIntangibleAssets_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsToAcquireIntangibleAssets_lbl1" xml:lang="en-US" id="us-gaap_PaymentsToAcquireIntangibleAssets_lbl1">Payments to Acquire Intangible Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireIntangibleAssets" xlink:to="us-gaap_PaymentsToAcquireIntangibleAssets_lbl1" xlink:title="label: PaymentsToAcquireIntangibleAssets to us-gaap_PaymentsToAcquireIntangibleAssets_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US" id="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl">Purchases of property, plant and equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:title="label: PaymentsToAcquirePropertyPlantAndEquipment to us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1" xml:lang="en-US" id="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1" xlink:title="label: PaymentsToAcquirePropertyPlantAndEquipment to us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="PerformanceSharesMember" xlink:title="PerformanceSharesMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PerformanceSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_PerformanceSharesMember_lbl" xml:lang="en-US" id="us-gaap_PerformanceSharesMember_lbl">PRSUs [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PerformanceSharesMember" xlink:to="us-gaap_PerformanceSharesMember_lbl" xlink:title="label: PerformanceSharesMember to us-gaap_PerformanceSharesMember_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PerformanceSharesMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PerformanceSharesMember_lbl1" xml:lang="en-US" id="us-gaap_PerformanceSharesMember_lbl1">Performance Shares [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PerformanceSharesMember" xlink:to="us-gaap_PerformanceSharesMember_lbl1" xlink:title="label: PerformanceSharesMember to us-gaap_PerformanceSharesMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="PlanNameDomain" xlink:title="PlanNameDomain" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PlanNameDomain_lbl" xml:lang="en-US" id="us-gaap_PlanNameDomain_lbl">Plan Name [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PlanNameDomain" xlink:to="us-gaap_PlanNameDomain_lbl" xlink:title="label: PlanNameDomain to us-gaap_PlanNameDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="PlanNameAxis" xlink:title="PlanNameAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PlanNameAxis_lbl" xml:lang="en-US" id="us-gaap_PlanNameAxis_lbl">Plan Name [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PlanNameAxis" xlink:to="us-gaap_PlanNameAxis_lbl" xlink:title="label: PlanNameAxis to us-gaap_PlanNameAxis_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_ProceedsFromConvertibleDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ProceedsFromConvertibleDebt_lbl" xml:lang="en-US" id="us-gaap_ProceedsFromConvertibleDebt_lbl">Proceeds from issuance of 0 percent convertible senior notes</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProductMember" xlink:label="ProductMember" xlink:title="ProductMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProductMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ProductMember_lbl" xml:lang="en-US" id="us-gaap_ProductMember_lbl">TEGSEDI and WAYLIVRA Revenue, Net [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductMember" xlink:to="us-gaap_ProductMember_lbl" xlink:title="label: ProductMember to us-gaap_ProductMember_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProductMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ProductMember_lbl1" xml:lang="en-US" id="us-gaap_ProductMember_lbl1">TEGSEDI and WAYLIVRA [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductMember" xlink:to="us-gaap_ProductMember_lbl1" xlink:title="label: ProductMember to us-gaap_ProductMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ProfitLoss_lbl" xml:lang="en-US" id="us-gaap_ProfitLoss_lbl">Net loss</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_ProfitLoss_lbl1" xml:lang="en-US" id="us-gaap_ProfitLoss_lbl1">Net loss</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xml:lang="en-US" id="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl">Long-Lived Tangible Asset [Axis]</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xml:lang="en-US" id="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl">Long-Lived Tangible Asset [Domain]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PublicUtilitiesInventoryAxis" xlink:label="PublicUtilitiesInventoryAxis" xlink:title="PublicUtilitiesInventoryAxis" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpensePolicy" xlink:to="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xlink:title="label: ResearchAndDevelopmentExpensePolicy to us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl1" xml:lang="en-US" id="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl1">Research and Development Expense, Policy [Policy Text Block]</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ResearchAndDevelopmentExpense_lbl" xml:lang="en-US" id="us-gaap_ResearchAndDevelopmentExpense_lbl">R&amp;D expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpense" xlink:to="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:title="label: ResearchAndDevelopmentExpense to us-gaap_ResearchAndDevelopmentExpense_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ResearchAndDevelopmentExpense_lbl1" xml:lang="en-US" id="us-gaap_ResearchAndDevelopmentExpense_lbl1">Research and Development Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpense" xlink:to="us-gaap_ResearchAndDevelopmentExpense_lbl1" xlink:title="label: ResearchAndDevelopmentExpense to us-gaap_ResearchAndDevelopmentExpense_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="RestrictedStockUnitsRSUMember" xlink:title="RestrictedStockUnitsRSUMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestrictedStockUnitsRSUMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_RestrictedStockUnitsRSUMember_lbl" xml:lang="en-US" id="us-gaap_RestrictedStockUnitsRSUMember_lbl">RSUs [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestrictedStockUnitsRSUMember" xlink:to="us-gaap_RestrictedStockUnitsRSUMember_lbl" xlink:title="label: RestrictedStockUnitsRSUMember to us-gaap_RestrictedStockUnitsRSUMember_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestrictedStockUnitsRSUMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestrictedStockUnitsRSUMember_lbl1" xml:lang="en-US" id="us-gaap_RestrictedStockUnitsRSUMember_lbl1">Restricted Stock Units (RSUs) [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestrictedStockUnitsRSUMember" xlink:to="us-gaap_RestrictedStockUnitsRSUMember_lbl1" xlink:title="label: RestrictedStockUnitsRSUMember to us-gaap_RestrictedStockUnitsRSUMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis" xlink:label="RestructuringCostAndReserveAxis" xlink:title="RestructuringCostAndReserveAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringCostAndReserveAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringCostAndReserveAxis_lbl" xml:lang="en-US" id="us-gaap_RestructuringCostAndReserveAxis_lbl">Restructuring Type [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringCostAndReserveAxis" xlink:to="us-gaap_RestructuringCostAndReserveAxis_lbl" xlink:title="label: RestructuringCostAndReserveAxis to us-gaap_RestructuringCostAndReserveAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringReserveAccrualAdjustment1" xlink:label="RestructuringReserveAccrualAdjustment1" xlink:title="RestructuringReserveAccrualAdjustment1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringReserveAccrualAdjustment1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_RestructuringReserveAccrualAdjustment1_lbl" xml:lang="en-US" id="us-gaap_RestructuringReserveAccrualAdjustment1_lbl">Reserve adjustments during the period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringReserveAccrualAdjustment1" xlink:to="us-gaap_RestructuringReserveAccrualAdjustment1_lbl" xlink:title="label: RestructuringReserveAccrualAdjustment1 to us-gaap_RestructuringReserveAccrualAdjustment1_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringReserveAccrualAdjustment1_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringReserveAccrualAdjustment1_lbl1" xml:lang="en-US" id="us-gaap_RestructuringReserveAccrualAdjustment1_lbl1">Restructuring Reserve, Accrual Adjustment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringReserveAccrualAdjustment1" xlink:to="us-gaap_RestructuringReserveAccrualAdjustment1_lbl1" xlink:title="label: RestructuringReserveAccrualAdjustment1 to us-gaap_RestructuringReserveAccrualAdjustment1_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems" xlink:label="RestructuringCostAndReserveLineItems" xlink:title="RestructuringCostAndReserveLineItems" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringCostAndReserveLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringCostAndReserveLineItems_lbl" xml:lang="en-US" id="us-gaap_RestructuringCostAndReserveLineItems_lbl">Restructuring Cost and Reserve [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringCostAndReserveLineItems" xlink:to="us-gaap_RestructuringCostAndReserveLineItems_lbl" xlink:title="label: RestructuringCostAndReserveLineItems to us-gaap_RestructuringCostAndReserveLineItems_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="RestructuringAndRelatedActivitiesAbstract" xlink:title="RestructuringAndRelatedActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringAndRelatedActivitiesAbstract_lbl" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedActivitiesAbstract_lbl">Severance and Retention Costs [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedActivitiesAbstract" xlink:to="us-gaap_RestructuringAndRelatedActivitiesAbstract_lbl" xlink:title="label: RestructuringAndRelatedActivitiesAbstract to us-gaap_RestructuringAndRelatedActivitiesAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="RestructuringCharges" xlink:title="RestructuringCharges" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringCharges_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_RestructuringCharges_lbl" xml:lang="en-US" id="us-gaap_RestructuringCharges_lbl">Amounts expensed during the period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringCharges" xlink:to="us-gaap_RestructuringCharges_lbl" xlink:title="label: RestructuringCharges to us-gaap_RestructuringCharges_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringCharges_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringCharges_lbl1" xml:lang="en-US" id="us-gaap_RestructuringCharges_lbl1">Restructuring Charges</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringCharges" xlink:to="us-gaap_RestructuringCharges_lbl1" xlink:title="label: RestructuringCharges to us-gaap_RestructuringCharges_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringAndRelatedCostCostIncurredToDate1" xlink:label="RestructuringAndRelatedCostCostIncurredToDate1" xlink:title="RestructuringAndRelatedCostCostIncurredToDate1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl">Expenses incurred from inception to September 30, 2021</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedCostCostIncurredToDate1" xlink:to="us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl" xlink:title="label: RestructuringAndRelatedCostCostIncurredToDate1 to us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl1" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl1">Restructuring and Related Cost, Cost Incurred to Date</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedCostCostIncurredToDate1" xlink:to="us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl1" xlink:title="label: RestructuringAndRelatedCostCostIncurredToDate1 to us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringCostsAbstract" xlink:label="RestructuringCostsAbstract" xlink:title="RestructuringCostsAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringCostsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_RestructuringCostsAbstract_lbl" xml:lang="en-US" id="us-gaap_RestructuringCostsAbstract_lbl">Severance and Retention Costs [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringCostsAbstract" xlink:to="us-gaap_RestructuringCostsAbstract_lbl" xlink:title="label: RestructuringCostsAbstract to us-gaap_RestructuringCostsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringCostsAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringCostsAbstract_lbl1" xml:lang="en-US" id="us-gaap_RestructuringCostsAbstract_lbl1">Restructuring Costs [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringCostsAbstract" xlink:to="us-gaap_RestructuringCostsAbstract_lbl1" xlink:title="label: RestructuringCostsAbstract to us-gaap_RestructuringCostsAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="RestructuringReserve" xlink:title="RestructuringReserve" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringReserve_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="us-gaap_RestructuringReserve_lbl" xml:lang="en-US" id="us-gaap_RestructuringReserve_lbl">Beginning balance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringReserve" xlink:to="us-gaap_RestructuringReserve_lbl" xlink:title="label: RestructuringReserve to us-gaap_RestructuringReserve_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringReserve_lbl1" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="us-gaap_RestructuringReserve_lbl1" xml:lang="en-US" id="us-gaap_RestructuringReserve_lbl1">Ending balance</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringReserve" xlink:to="us-gaap_RestructuringReserve_lbl1" xlink:title="label: RestructuringReserve to us-gaap_RestructuringReserve_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringReserve_lbl2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringReserve_lbl2" xml:lang="en-US" id="us-gaap_RestructuringReserve_lbl2">Restructuring Reserve</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringReserve" xlink:to="us-gaap_RestructuringReserve_lbl2" xlink:title="label: RestructuringReserve to us-gaap_RestructuringReserve_lbl2" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1" xlink:label="RestructuringAndRelatedCostExpectedCostRemaining1" xlink:title="RestructuringAndRelatedCostExpectedCostRemaining1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl">Remaining estimated expenses to be recognized through October 2021</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedCostExpectedCostRemaining1" xlink:to="us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl" xlink:title="label: RestructuringAndRelatedCostExpectedCostRemaining1 to us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl1" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl1">Restructuring and Related Cost, Expected Cost Remaining</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedCostExpectedCostRemaining1" xlink:to="us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl1" xlink:title="label: RestructuringAndRelatedCostExpectedCostRemaining1 to us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl">Total estimated expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedCostExpectedCost1" xlink:to="us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl" xlink:title="label: RestructuringAndRelatedCostExpectedCost1 to us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl1" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl1">Restructuring and Related Cost, Expected Cost</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedCostExpectedCost1" xlink:to="us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl1" xlink:title="label: RestructuringAndRelatedCostExpectedCost1 to us-gaap_RestructuringAndRelatedCostExpectedCost1_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:label="RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:title="RestructuringAndRelatedActivitiesDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl">Severance and Retention Costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:to="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl" xlink:title="label: RestructuringAndRelatedActivitiesDisclosureTextBlock to us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl1" xml:lang="en-US" id="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl1">Restructuring and Related Activities Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:to="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl1" xlink:title="label: RestructuringAndRelatedActivitiesDisclosureTextBlock to us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="RetainedEarningsMember" xlink:title="RetainedEarningsMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_RetainedEarningsMember_lbl" xml:lang="en-US" id="us-gaap_RetainedEarningsMember_lbl">Accumulated Deficit [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsMember" xlink:to="us-gaap_RetainedEarningsMember_lbl" xlink:title="label: RetainedEarningsMember to us-gaap_RetainedEarningsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RetainedEarningsMember_lbl1" xml:lang="en-US" id="us-gaap_RetainedEarningsMember_lbl1">Retained Earnings [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="RevenueFromContractWithCustomerExcludingAssessedTax" xlink:title="RevenueFromContractWithCustomerExcludingAssessedTax" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerExcludingAssessedTax" xlink:to="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl1" xlink:title="label: RevenueFromContractWithCustomerExcludingAssessedTax to us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl1" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="RevenuesAbstract" xlink:title="RevenuesAbstract" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:label="SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:title="SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" xlink:label="ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" xlink:title="ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract_lbl1" xml:lang="en-US" id="us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract_lbl1">Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract" xlink:to="us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract_lbl1" xlink:title="label: SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract to us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xml:lang="en-US" id="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl">Segment Information</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SegmentReportingPolicyPolicyTextBlock" xlink:to="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" xlink:title="label: SegmentReportingPolicyPolicyTextBlock to us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl1" xml:lang="en-US" id="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl1">Segment Reporting, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SegmentReportingPolicyPolicyTextBlock" xlink:to="us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl1" xlink:title="label: SegmentReportingPolicyPolicyTextBlock to us-gaap_SegmentReportingPolicyPolicyTextBlock_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl" xml:lang="en-US" id="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl">Selling, General and Administrative Expense [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SellingGeneralAndAdministrativeExpensesMember" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl" xlink:title="label: SellingGeneralAndAdministrativeExpensesMember to us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl1" xml:lang="en-US" id="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl1">Selling, General and Administrative Expenses [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SellingGeneralAndAdministrativeExpensesMember" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl1" xlink:title="label: SellingGeneralAndAdministrativeExpensesMember to us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl2" xml:lang="en-US" id="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl2">Selling, General and Administrative Expenses [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SellingGeneralAndAdministrativeExpensesMember" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl2" xlink:title="label: SellingGeneralAndAdministrativeExpensesMember to us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="SellingGeneralAndAdministrativeExpense" xlink:title="SellingGeneralAndAdministrativeExpense" />
    <link:label xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xml:lang="en-US" id="us-gaap_SellingGeneralAndAdministrativeExpense_lbl">Selling, general and administrative</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SellingGeneralAndAdministrativeExpense" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:title="label: SellingGeneralAndAdministrativeExpense to us-gaap_SellingGeneralAndAdministrativeExpense_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_SellingGeneralAndAdministrativeExpense_lbl1" xml:lang="en-US" id="us-gaap_SellingGeneralAndAdministrativeExpense_lbl1">Selling, General and Administrative Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SellingGeneralAndAdministrativeExpense" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpense_lbl1" xlink:title="label: SellingGeneralAndAdministrativeExpense to us-gaap_SellingGeneralAndAdministrativeExpense_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xml:lang="en-US" id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl">Vesting period</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl1" xml:lang="en-US" id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl1">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl1" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1 to us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xml:lang="en-US" id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl">Stock options granted (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross to us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl1" xml:lang="en-US" id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl1">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl1" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross to us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedArrangementsToObtainGoodsAndServicesAbstract" xlink:label="ShareBasedArrangementsToObtainGoodsAndServicesAbstract" xlink:title="ShareBasedArrangementsToObtainGoodsAndServicesAbstract" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedArrangementsToObtainGoodsAndServicesAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedArrangementsToObtainGoodsAndServicesAbstract_lbl1" xml:lang="en-US" id="us-gaap_ShareBasedArrangementsToObtainGoodsAndServicesAbstract_lbl1">Share-based Payment Arrangement, Disclosure [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:label="ShareBasedCompensationAwardTrancheTwoMember" xlink:title="ShareBasedCompensationAwardTrancheTwoMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedCompensationAwardTrancheTwoMember_lbl" xml:lang="en-US" id="us-gaap_ShareBasedCompensationAwardTrancheTwoMember_lbl">Two-Year Period [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:label="ShareBasedCompensationAwardTrancheOneMember" xlink:title="ShareBasedCompensationAwardTrancheOneMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl" xml:lang="en-US" id="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl">One-Year Period [Member]</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl1" xml:lang="en-US" id="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl1">Share-based Payment Arrangement, Tranche One [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationAwardTrancheOneMember" xlink:to="us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl1" xlink:title="label: ShareBasedCompensationAwardTrancheOneMember to us-gaap_ShareBasedCompensationAwardTrancheOneMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAbstract" xlink:label="ShareBasedCompensationAbstract" xlink:title="ShareBasedCompensationAbstract" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedCompensationAbstract_lbl1" xml:lang="en-US" id="us-gaap_ShareBasedCompensationAbstract_lbl1">Share-based Payment Arrangement, Noncash Expense [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:label="ShareBasedCompensationAwardTrancheThreeMember" xlink:title="ShareBasedCompensationAwardTrancheThreeMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedCompensationAwardTrancheThreeMember_lbl" xml:lang="en-US" id="us-gaap_ShareBasedCompensationAwardTrancheThreeMember_lbl">Three-Year Period [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="ShareBasedCompensation" xlink:title="ShareBasedCompensation" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedCompensation_lbl1" xml:lang="en-US" id="us-gaap_ShareBasedCompensation_lbl1">Share-based Payment Arrangement, Noncash Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl1" xlink:title="label: ShareBasedCompensation to us-gaap_ShareBasedCompensation_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xml:lang="en-US" id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedPaymentArrangementEmployeeMember" xlink:label="ShareBasedPaymentArrangementEmployeeMember" xlink:title="ShareBasedPaymentArrangementEmployeeMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedPaymentArrangementEmployeeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ShareBasedPaymentArrangementEmployeeMember_lbl" xml:lang="en-US" id="us-gaap_ShareBasedPaymentArrangementEmployeeMember_lbl">Employees [Member]</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_ShareBasedPaymentArrangementEmployeeMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ShareBasedPaymentArrangementEmployeeMember_lbl1" xml:lang="en-US" id="us-gaap_ShareBasedPaymentArrangementEmployeeMember_lbl1">Share-based Payment Arrangement, Employee [Member]</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SharesIssued" xlink:to="us-gaap_SharesIssued_lbl1" xlink:title="label: SharesIssued to us-gaap_SharesIssued_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_SharesIssued_lbl2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_SharesIssued_lbl2" xml:lang="en-US" id="us-gaap_SharesIssued_lbl2">Shares, Issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SharesIssued" xlink:to="us-gaap_SharesIssued_lbl2" xlink:title="label: SharesIssued to us-gaap_SharesIssued_lbl2" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_SignificantAccountingPoliciesTextBlock_lbl1" xml:lang="en-US" id="us-gaap_SignificantAccountingPoliciesTextBlock_lbl1">Significant Accounting Policies [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock_lbl1" xlink:title="label: SignificantAccountingPoliciesTextBlock to us-gaap_SignificantAccountingPoliciesTextBlock_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US" id="us-gaap_StatementOfFinancialPositionAbstract_lbl">CONDENSED CONSOLIDATED BALANCE SHEETS [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:title="label: StatementOfFinancialPositionAbstract to us-gaap_StatementOfFinancialPositionAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_StatementOfFinancialPositionAbstract_lbl1" xml:lang="en-US" id="us-gaap_StatementOfFinancialPositionAbstract_lbl1">Condensed Consolidated Balance Sheet [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl1" xlink:title="label: StatementOfFinancialPositionAbstract to us-gaap_StatementOfFinancialPositionAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:title="StatementOfIncomeAndComprehensiveIncomeAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:to="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xlink:title="label: StatementOfIncomeAndComprehensiveIncomeAbstract to us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementClassOfStockAxis_lbl" xml:lang="en-US" id="us-gaap_StatementClassOfStockAxis_lbl">Class of Stock [Axis]</link:label>
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="StatementBusinessSegmentsAxis" xlink:title="StatementBusinessSegmentsAxis" />
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    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementTable_lbl" xml:lang="en-US" id="us-gaap_StatementTable_lbl">Statement [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementTable" xlink:to="us-gaap_StatementTable_lbl" xlink:title="label: StatementTable to us-gaap_StatementTable_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementLineItems_lbl" xml:lang="en-US" id="us-gaap_StatementLineItems_lbl">Statement [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementLineItems" xlink:to="us-gaap_StatementLineItems_lbl" xlink:title="label: StatementLineItems to us-gaap_StatementLineItems_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="StatementOfCashFlowsAbstract" xlink:title="StatementOfCashFlowsAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:title="label: StatementOfCashFlowsAbstract to us-gaap_StatementOfCashFlowsAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfStockholdersEquityAbstract" xlink:to="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:title="label: StatementOfStockholdersEquityAbstract to us-gaap_StatementOfStockholdersEquityAbstract_lbl" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfStockholdersEquityAbstract" xlink:to="us-gaap_StatementOfStockholdersEquityAbstract_lbl1" xlink:title="label: StatementOfStockholdersEquityAbstract to us-gaap_StatementOfStockholdersEquityAbstract_lbl1" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VestingAxis" xlink:to="us-gaap_VestingAxis_lbl" xlink:title="label: VestingAxis to us-gaap_VestingAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VestingDomain" xlink:label="VestingDomain" xlink:title="VestingDomain" />
    <link:label xlink:type="resource" xlink:label="us-gaap_VestingDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_VestingDomain_lbl" xml:lang="en-US" id="us-gaap_VestingDomain_lbl">Vesting [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VestingDomain" xlink:to="us-gaap_VestingDomain_lbl" xlink:title="label: VestingDomain to us-gaap_VestingDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xml:lang="en-US" id="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl">Shares used in computing diluted net loss per share (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:title="label: WeightedAverageNumberOfDilutedSharesOutstanding to us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:label xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xml:lang="en-US" id="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl">Shares used in computing basic net loss per share (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:title="label: WeightedAverageNumberOfSharesOutstandingBasic to us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl1" xml:lang="en-US" id="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl1">Weighted average shares outstanding (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl1" xlink:title="label: WeightedAverageNumberOfSharesOutstandingBasic to us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ChiefExecutiveOfficerMember" xlink:label="ChiefExecutiveOfficerMember" xlink:title="ChiefExecutiveOfficerMember" />
    <link:label xlink:type="resource" xlink:label="srt_ChiefExecutiveOfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="srt_ChiefExecutiveOfficerMember_lbl" xml:lang="en-US" id="srt_ChiefExecutiveOfficerMember_lbl">Chief Executive Officer, Dr. Brett Monia [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ChiefExecutiveOfficerMember" xlink:to="srt_ChiefExecutiveOfficerMember_lbl" xlink:title="label: ChiefExecutiveOfficerMember to srt_ChiefExecutiveOfficerMember_lbl" />
    <link:label xlink:type="resource" xlink:label="srt_ChiefExecutiveOfficerMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_ChiefExecutiveOfficerMember_lbl1" xml:lang="en-US" id="srt_ChiefExecutiveOfficerMember_lbl1">Chief Executive Officer [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ChiefExecutiveOfficerMember" xlink:to="srt_ChiefExecutiveOfficerMember_lbl1" xlink:title="label: ChiefExecutiveOfficerMember to srt_ChiefExecutiveOfficerMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_EquityMethodInvesteeNameDomain" xlink:label="EquityMethodInvesteeNameDomain" xlink:title="EquityMethodInvesteeNameDomain" />
    <link:label xlink:type="resource" xlink:label="srt_EquityMethodInvesteeNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_EquityMethodInvesteeNameDomain_lbl" xml:lang="en-US" id="srt_EquityMethodInvesteeNameDomain_lbl">Investment, Name [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EquityMethodInvesteeNameDomain" xlink:to="srt_EquityMethodInvesteeNameDomain_lbl" xlink:title="label: EquityMethodInvesteeNameDomain to srt_EquityMethodInvesteeNameDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MajorCustomersAxis" xlink:label="MajorCustomersAxis" xlink:title="MajorCustomersAxis" />
    <link:label xlink:type="resource" xlink:label="srt_MajorCustomersAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_MajorCustomersAxis_lbl" xml:lang="en-US" id="srt_MajorCustomersAxis_lbl">Customer [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MajorCustomersAxis" xlink:to="srt_MajorCustomersAxis_lbl" xlink:title="label: MajorCustomersAxis to srt_MajorCustomersAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember" xlink:label="MaximumMember" xlink:title="MaximumMember" />
    <link:label xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_MaximumMember_lbl" xml:lang="en-US" id="srt_MaximumMember_lbl">Maximum [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MaximumMember" xlink:to="srt_MaximumMember_lbl" xlink:title="label: MaximumMember to srt_MaximumMember_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember" xlink:label="MinimumMember" xlink:title="MinimumMember" />
    <link:label xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_MinimumMember_lbl" xml:lang="en-US" id="srt_MinimumMember_lbl">Minimum [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinimumMember" xlink:to="srt_MinimumMember_lbl" xlink:title="label: MinimumMember to srt_MinimumMember_lbl" />
    <link:label xlink:type="resource" xlink:label="srt_MinimumMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="srt_MinimumMember_lbl1" xml:lang="en-US" id="srt_MinimumMember_lbl1">Minimum [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinimumMember" xlink:to="srt_MinimumMember_lbl1" xlink:title="label: MinimumMember to srt_MinimumMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_NameOfMajorCustomerDomain" xlink:label="NameOfMajorCustomerDomain" xlink:title="NameOfMajorCustomerDomain" />
    <link:label xlink:type="resource" xlink:label="srt_NameOfMajorCustomerDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_NameOfMajorCustomerDomain_lbl" xml:lang="en-US" id="srt_NameOfMajorCustomerDomain_lbl">Customer [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NameOfMajorCustomerDomain" xlink:to="srt_NameOfMajorCustomerDomain_lbl" xlink:title="label: NameOfMajorCustomerDomain to srt_NameOfMajorCustomerDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_OwnershipDomain" xlink:label="OwnershipDomain" xlink:title="OwnershipDomain" />
    <link:label xlink:type="resource" xlink:label="srt_OwnershipDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_OwnershipDomain_lbl" xml:lang="en-US" id="srt_OwnershipDomain_lbl">Ownership [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipDomain" xlink:to="srt_OwnershipDomain_lbl" xlink:title="label: OwnershipDomain to srt_OwnershipDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_OwnershipAxis" xlink:label="OwnershipAxis" xlink:title="OwnershipAxis" />
    <link:label xlink:type="resource" xlink:label="srt_OwnershipAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_OwnershipAxis_lbl" xml:lang="en-US" id="srt_OwnershipAxis_lbl">Ownership [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OwnershipAxis" xlink:to="srt_OwnershipAxis_lbl" xlink:title="label: OwnershipAxis to srt_OwnershipAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="ProductsAndServicesDomain" xlink:title="ProductsAndServicesDomain" />
    <link:label xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_ProductsAndServicesDomain_lbl" xml:lang="en-US" id="srt_ProductsAndServicesDomain_lbl">Products and Services [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductsAndServicesDomain" xlink:to="srt_ProductsAndServicesDomain_lbl" xlink:title="label: ProductsAndServicesDomain to srt_ProductsAndServicesDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="ProductOrServiceAxis" xlink:title="ProductOrServiceAxis" />
    <link:label xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_ProductOrServiceAxis_lbl" xml:lang="en-US" id="srt_ProductOrServiceAxis_lbl">Products and Services [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductOrServiceAxis" xlink:to="srt_ProductOrServiceAxis_lbl" xlink:title="label: ProductOrServiceAxis to srt_ProductOrServiceAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" xlink:label="RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" xlink:title="RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" />
    <link:label xlink:type="resource" xlink:label="srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl" xml:lang="en-US" id="srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl">Adjustment [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" xlink:to="srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl" xlink:title="label: RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember to srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl" />
    <link:label xlink:type="resource" xlink:label="srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl1" xml:lang="en-US" id="srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl1">Revision of Prior Period, Accounting Standards Update, Adjustment [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember" xlink:to="srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl1" xlink:title="label: RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember to srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember" xlink:label="RangeMember" xlink:title="RangeMember" />
    <link:label xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_RangeMember_lbl" xml:lang="en-US" id="srt_RangeMember_lbl">Statistical Measurement [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RangeMember" xlink:to="srt_RangeMember_lbl" xlink:title="label: RangeMember to srt_RangeMember_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis" xlink:label="RangeAxis" xlink:title="RangeAxis" />
    <link:label xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_RangeAxis_lbl" xml:lang="en-US" id="srt_RangeAxis_lbl">Statistical Measurement [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RangeAxis" xlink:to="srt_RangeAxis_lbl" xlink:title="label: RangeAxis to srt_RangeAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RestatementDomain" xlink:label="RestatementDomain" xlink:title="RestatementDomain" />
    <link:label xlink:type="resource" xlink:label="srt_RestatementDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_RestatementDomain_lbl" xml:lang="en-US" id="srt_RestatementDomain_lbl">Revision of Prior Period [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestatementDomain" xlink:to="srt_RestatementDomain_lbl" xlink:title="label: RestatementDomain to srt_RestatementDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RestatementAxis" xlink:label="RestatementAxis" xlink:title="RestatementAxis" />
    <link:label xlink:type="resource" xlink:label="srt_RestatementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_RestatementAxis_lbl" xml:lang="en-US" id="srt_RestatementAxis_lbl">Revision of Prior Period [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestatementAxis" xlink:to="srt_RestatementAxis_lbl" xlink:title="label: RestatementAxis to srt_RestatementAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ScenarioPreviouslyReportedMember" xlink:label="ScenarioPreviouslyReportedMember" xlink:title="ScenarioPreviouslyReportedMember" />
    <link:label xlink:type="resource" xlink:label="srt_ScenarioPreviouslyReportedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="srt_ScenarioPreviouslyReportedMember_lbl" xml:lang="en-US" id="srt_ScenarioPreviouslyReportedMember_lbl">As Previously Reported [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScenarioPreviouslyReportedMember" xlink:to="srt_ScenarioPreviouslyReportedMember_lbl" xlink:title="label: ScenarioPreviouslyReportedMember to srt_ScenarioPreviouslyReportedMember_lbl" />
    <link:label xlink:type="resource" xlink:label="srt_ScenarioPreviouslyReportedMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_ScenarioPreviouslyReportedMember_lbl1" xml:lang="en-US" id="srt_ScenarioPreviouslyReportedMember_lbl1">Previously Reported [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScenarioPreviouslyReportedMember" xlink:to="srt_ScenarioPreviouslyReportedMember_lbl1" xlink:title="label: ScenarioPreviouslyReportedMember to srt_ScenarioPreviouslyReportedMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:title="ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" />
    <link:label xlink:type="resource" xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" xml:lang="en-US" id="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl">Investment, Name [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" xlink:title="label: ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis to srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CoverAbstract" xlink:label="CoverAbstract" xlink:title="CoverAbstract" />
    <link:label xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_CoverAbstract_lbl" xml:lang="en-US" id="dei_CoverAbstract_lbl">Cover [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CoverAbstract" xlink:to="dei_CoverAbstract_lbl" xlink:title="label: CoverAbstract to dei_CoverAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentType" xlink:label="DocumentType" xlink:title="DocumentType" />
    <link:label xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_DocumentType_lbl" xml:lang="en-US" id="dei_DocumentType_lbl">Document Type</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentType" xlink:to="dei_DocumentType_lbl" xlink:title="label: DocumentType to dei_DocumentType_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentQuarterlyReport" xlink:label="DocumentQuarterlyReport" xlink:title="DocumentQuarterlyReport" />
    <link:label xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_DocumentQuarterlyReport_lbl" xml:lang="en-US" id="dei_DocumentQuarterlyReport_lbl">Document Quarterly Report</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentQuarterlyReport" xlink:to="dei_DocumentQuarterlyReport_lbl" xlink:title="label: DocumentQuarterlyReport to dei_DocumentQuarterlyReport_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentTransitionReport" xlink:label="DocumentTransitionReport" xlink:title="DocumentTransitionReport" />
    <link:label xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_DocumentTransitionReport_lbl" xml:lang="en-US" id="dei_DocumentTransitionReport_lbl">Document Transition Report</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentTransitionReport" xlink:to="dei_DocumentTransitionReport_lbl" xlink:title="label: DocumentTransitionReport to dei_DocumentTransitionReport_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityInteractiveDataCurrent" xlink:label="EntityInteractiveDataCurrent" xlink:title="EntityInteractiveDataCurrent" />
    <link:label xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US" id="dei_EntityInteractiveDataCurrent_lbl">Entity Interactive Data Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl" xlink:title="label: EntityInteractiveDataCurrent to dei_EntityInteractiveDataCurrent_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_AmendmentFlag" xlink:label="AmendmentFlag" xlink:title="AmendmentFlag" />
    <link:label xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_AmendmentFlag_lbl" xml:lang="en-US" id="dei_AmendmentFlag_lbl">Amendment Flag</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl" xlink:title="label: AmendmentFlag to dei_AmendmentFlag_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentFiscalYearFocus" xlink:label="DocumentFiscalYearFocus" xlink:title="DocumentFiscalYearFocus" />
    <link:label xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US" id="dei_DocumentFiscalYearFocus_lbl">Document Fiscal Year Focus</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl" xlink:title="label: DocumentFiscalYearFocus to dei_DocumentFiscalYearFocus_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="DocumentFiscalPeriodFocus" xlink:title="DocumentFiscalPeriodFocus" />
    <link:label xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US" id="dei_DocumentFiscalPeriodFocus_lbl">Document Fiscal Period Focus</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl" xlink:title="label: DocumentFiscalPeriodFocus to dei_DocumentFiscalPeriodFocus_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentPeriodEndDate" xlink:label="DocumentPeriodEndDate" xlink:title="DocumentPeriodEndDate" />
    <link:label xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US" id="dei_DocumentPeriodEndDate_lbl">Document Period End Date</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl" xlink:title="label: DocumentPeriodEndDate to dei_DocumentPeriodEndDate_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityRegistrantName" xlink:label="EntityRegistrantName" xlink:title="EntityRegistrantName" />
    <link:label xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityRegistrantName_lbl" xml:lang="en-US" id="dei_EntityRegistrantName_lbl">Entity Registrant Name</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl" xlink:title="label: EntityRegistrantName to dei_EntityRegistrantName_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCentralIndexKey" xlink:label="EntityCentralIndexKey" xlink:title="EntityCentralIndexKey" />
    <link:label xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityCentralIndexKey_lbl" xml:lang="en-US" id="dei_EntityCentralIndexKey_lbl">Entity Central Index Key</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" xlink:title="label: EntityCentralIndexKey to dei_EntityCentralIndexKey_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFileNumber" xlink:label="EntityFileNumber" xlink:title="EntityFileNumber" />
    <link:label xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityFileNumber_lbl" xml:lang="en-US" id="dei_EntityFileNumber_lbl">Entity File Number</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl" xlink:title="label: EntityFileNumber to dei_EntityFileNumber_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityTaxIdentificationNumber" xlink:label="EntityTaxIdentificationNumber" xlink:title="EntityTaxIdentificationNumber" />
    <link:label xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityTaxIdentificationNumber_lbl" xml:lang="en-US" id="dei_EntityTaxIdentificationNumber_lbl">Entity Tax Identification Number</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityTaxIdentificationNumber" xlink:to="dei_EntityTaxIdentificationNumber_lbl" xlink:title="label: EntityTaxIdentificationNumber to dei_EntityTaxIdentificationNumber_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="EntityIncorporationStateCountryCode" xlink:title="EntityIncorporationStateCountryCode" />
    <link:label xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityIncorporationStateCountryCode_lbl" xml:lang="en-US" id="dei_EntityIncorporationStateCountryCode_lbl">Entity Incorporation, State or Country Code</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl" xlink:title="label: EntityIncorporationStateCountryCode to dei_EntityIncorporationStateCountryCode_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CurrentFiscalYearEndDate" xlink:label="CurrentFiscalYearEndDate" xlink:title="CurrentFiscalYearEndDate" />
    <link:label xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US" id="dei_CurrentFiscalYearEndDate_lbl">Current Fiscal Year End Date</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl" xlink:title="label: CurrentFiscalYearEndDate to dei_CurrentFiscalYearEndDate_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCurrentReportingStatus" xlink:label="EntityCurrentReportingStatus" xlink:title="EntityCurrentReportingStatus" />
    <link:label xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US" id="dei_EntityCurrentReportingStatus_lbl">Entity Current Reporting Status</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus_lbl" xlink:title="label: EntityCurrentReportingStatus to dei_EntityCurrentReportingStatus_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityShellCompany" xlink:label="EntityShellCompany" xlink:title="EntityShellCompany" />
    <link:label xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityShellCompany_lbl" xml:lang="en-US" id="dei_EntityShellCompany_lbl">Entity Shell Company</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityShellCompany" xlink:to="dei_EntityShellCompany_lbl" xlink:title="label: EntityShellCompany to dei_EntityShellCompany_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFilerCategory" xlink:label="EntityFilerCategory" xlink:title="EntityFilerCategory" />
    <link:label xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityFilerCategory_lbl" xml:lang="en-US" id="dei_EntityFilerCategory_lbl">Entity Filer Category</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl" xlink:title="label: EntityFilerCategory to dei_EntityFilerCategory_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntitySmallBusiness" xlink:label="EntitySmallBusiness" xlink:title="EntitySmallBusiness" />
    <link:label xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntitySmallBusiness_lbl" xml:lang="en-US" id="dei_EntitySmallBusiness_lbl">Entity Small Business</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness_lbl" xlink:title="label: EntitySmallBusiness to dei_EntitySmallBusiness_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityEmergingGrowthCompany" xlink:label="EntityEmergingGrowthCompany" xlink:title="EntityEmergingGrowthCompany" />
    <link:label xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US" id="dei_EntityEmergingGrowthCompany_lbl">Entity Emerging Growth Company</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" xlink:title="label: EntityEmergingGrowthCompany to dei_EntityEmergingGrowthCompany_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine1" xlink:label="EntityAddressAddressLine1" xlink:title="EntityAddressAddressLine1" />
    <link:label xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityAddressAddressLine1_lbl" xml:lang="en-US" id="dei_EntityAddressAddressLine1_lbl">Entity Address, Address Line One</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl" xlink:title="label: EntityAddressAddressLine1 to dei_EntityAddressAddressLine1_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown" xlink:label="EntityAddressCityOrTown" xlink:title="EntityAddressCityOrTown" />
    <link:label xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityAddressCityOrTown_lbl" xml:lang="en-US" id="dei_EntityAddressCityOrTown_lbl">Entity Address, City or Town</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl" xlink:title="label: EntityAddressCityOrTown to dei_EntityAddressCityOrTown_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince" xlink:label="EntityAddressStateOrProvince" xlink:title="EntityAddressStateOrProvince" />
    <link:label xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityAddressStateOrProvince_lbl" xml:lang="en-US" id="dei_EntityAddressStateOrProvince_lbl">Entity Address, State or Province</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl" xlink:title="label: EntityAddressStateOrProvince to dei_EntityAddressStateOrProvince_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode" xlink:label="EntityAddressPostalZipCode" xlink:title="EntityAddressPostalZipCode" />
    <link:label xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityAddressPostalZipCode_lbl" xml:lang="en-US" id="dei_EntityAddressPostalZipCode_lbl">Entity Address, Postal Zip Code</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl" xlink:title="label: EntityAddressPostalZipCode to dei_EntityAddressPostalZipCode_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode" xlink:label="CityAreaCode" xlink:title="CityAreaCode" />
    <link:label xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_CityAreaCode_lbl" xml:lang="en-US" id="dei_CityAreaCode_lbl">City Area Code</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CityAreaCode" xlink:to="dei_CityAreaCode_lbl" xlink:title="label: CityAreaCode to dei_CityAreaCode_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LocalPhoneNumber" xlink:label="LocalPhoneNumber" xlink:title="LocalPhoneNumber" />
    <link:label xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_LocalPhoneNumber_lbl" xml:lang="en-US" id="dei_LocalPhoneNumber_lbl">Local Phone Number</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" xlink:title="label: LocalPhoneNumber to dei_LocalPhoneNumber_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12bTitle" xlink:label="Security12bTitle" xlink:title="Security12bTitle" />
    <link:label xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_Security12bTitle_lbl" xml:lang="en-US" id="dei_Security12bTitle_lbl">Title of 12(b) Security</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Security12bTitle" xlink:to="dei_Security12bTitle_lbl" xlink:title="label: Security12bTitle to dei_Security12bTitle_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_TradingSymbol" xlink:label="TradingSymbol" xlink:title="TradingSymbol" />
    <link:label xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_TradingSymbol_lbl" xml:lang="en-US" id="dei_TradingSymbol_lbl">Trading Symbol</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TradingSymbol" xlink:to="dei_TradingSymbol_lbl" xlink:title="label: TradingSymbol to dei_TradingSymbol_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityExchangeName" xlink:label="SecurityExchangeName" xlink:title="SecurityExchangeName" />
    <link:label xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_SecurityExchangeName_lbl" xml:lang="en-US" id="dei_SecurityExchangeName_lbl">Security Exchange Name</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl" xlink:title="label: SecurityExchangeName to dei_SecurityExchangeName_lbl" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="EntityCommonStockSharesOutstanding" xlink:title="EntityCommonStockSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US" id="dei_EntityCommonStockSharesOutstanding_lbl">Entity Common Stock, Shares Outstanding</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding_lbl" xlink:title="label: EntityCommonStockSharesOutstanding to dei_EntityCommonStockSharesOutstanding_lbl" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_LongTermObligationsNoncurrent" xlink:label="LongTermObligationsNoncurrent" xlink:title="LongTermObligationsNoncurrent" />
    <link:label xlink:type="resource" xlink:label="ions_LongTermObligationsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_LongTermObligationsNoncurrent_lbl" xml:lang="en-US" id="ions_LongTermObligationsNoncurrent_lbl">Amount of long-term debt and lease obligation, classified as noncurrent.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermObligationsNoncurrent" xlink:to="ions_LongTermObligationsNoncurrent_lbl" xlink:title="label: LongTermObligationsNoncurrent to ions_LongTermObligationsNoncurrent_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_LongTermObligationsNoncurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_LongTermObligationsNoncurrent_lbl1" xml:lang="en-US" id="ions_LongTermObligationsNoncurrent_lbl1">Long-term Obligations, Noncurrent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermObligationsNoncurrent" xlink:to="ions_LongTermObligationsNoncurrent_lbl1" xlink:title="label: LongTermObligationsNoncurrent to ions_LongTermObligationsNoncurrent_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_LongTermObligationsNoncurrent_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_LongTermObligationsNoncurrent_lbl2" xml:lang="en-US" id="ions_LongTermObligationsNoncurrent_lbl2">Long-term obligations, less current portion</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermObligationsNoncurrent" xlink:to="ions_LongTermObligationsNoncurrent_lbl2" xlink:title="label: LongTermObligationsNoncurrent to ions_LongTermObligationsNoncurrent_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_LongTermObligationsCurrent" xlink:label="LongTermObligationsCurrent" xlink:title="LongTermObligationsCurrent" />
    <link:label xlink:type="resource" xlink:label="ions_LongTermObligationsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_LongTermObligationsCurrent_lbl" xml:lang="en-US" id="ions_LongTermObligationsCurrent_lbl">Amount of long-term debt, excluding convertible debt, and lease obligations, classified as current, and other current liabilities.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermObligationsCurrent" xlink:to="ions_LongTermObligationsCurrent_lbl" xlink:title="label: LongTermObligationsCurrent to ions_LongTermObligationsCurrent_lbl" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ConvertibleSeniorNotes0125PercentMember" xlink:label="ConvertibleSeniorNotes0125PercentMember" xlink:title="ConvertibleSeniorNotes0125PercentMember" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleSeniorNotes0125PercentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ConvertibleSeniorNotes0125PercentMember_lbl" xml:lang="en-US" id="ions_ConvertibleSeniorNotes0125PercentMember_lbl">0.125 percent convertible senior notes due December 2024.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_ConvertibleSeniorNotes0125PercentMember_lbl3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_ConvertibleSeniorNotes0125PercentMember_lbl3" xml:lang="en-US" id="ions_ConvertibleSeniorNotes0125PercentMember_lbl3">0.125 Percent Convertible Senior Notes [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ConvertibleSeniorNotes1PercentMember" xlink:label="ConvertibleSeniorNotes1PercentMember" xlink:title="ConvertibleSeniorNotes1PercentMember" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleSeniorNotes1PercentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ConvertibleSeniorNotes1PercentMember_lbl" xml:lang="en-US" id="ions_ConvertibleSeniorNotes1PercentMember_lbl">1 percent convertible senior notes due November 2021.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_ConvertibleSeniorNotes1PercentMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="ions_ConvertibleSeniorNotes1PercentMember_lbl2" xml:lang="en-US" id="ions_ConvertibleSeniorNotes1PercentMember_lbl2">1% Notes [Member]</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_ConvertibleSeniorNotes1PercentMember_lbl3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_ConvertibleSeniorNotes1PercentMember_lbl3" xml:lang="en-US" id="ions_ConvertibleSeniorNotes1PercentMember_lbl3">1 Percent Convertible Senior Notes [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSeniorNotes1PercentMember" xlink:to="ions_ConvertibleSeniorNotes1PercentMember_lbl3" xlink:title="label: ConvertibleSeniorNotes1PercentMember to ions_ConvertibleSeniorNotes1PercentMember_lbl3" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ConvertibleSeniorNotes0PercentMember" xlink:label="ConvertibleSeniorNotes0PercentMember" xlink:title="ConvertibleSeniorNotes0PercentMember" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleSeniorNotes0PercentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ConvertibleSeniorNotes0PercentMember_lbl" xml:lang="en-US" id="ions_ConvertibleSeniorNotes0PercentMember_lbl">0 percent convertible senior notes due April 2026.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSeniorNotes0PercentMember" xlink:to="ions_ConvertibleSeniorNotes0PercentMember_lbl" xlink:title="label: ConvertibleSeniorNotes0PercentMember to ions_ConvertibleSeniorNotes0PercentMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleSeniorNotes0PercentMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_ConvertibleSeniorNotes0PercentMember_lbl1" xml:lang="en-US" id="ions_ConvertibleSeniorNotes0PercentMember_lbl1">Convertible Senior Notes 0 Percent [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSeniorNotes0PercentMember" xlink:to="ions_ConvertibleSeniorNotes0PercentMember_lbl1" xlink:title="label: ConvertibleSeniorNotes0PercentMember to ions_ConvertibleSeniorNotes0PercentMember_lbl1" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSeniorNotes0PercentMember" xlink:to="ions_ConvertibleSeniorNotes0PercentMember_lbl3" xlink:title="label: ConvertibleSeniorNotes0PercentMember to ions_ConvertibleSeniorNotes0PercentMember_lbl3" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AroBiotherapeuticsMember" xlink:label="AroBiotherapeuticsMember" xlink:title="AroBiotherapeuticsMember" />
    <link:label xlink:type="resource" xlink:label="ions_AroBiotherapeuticsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_AroBiotherapeuticsMember_lbl" xml:lang="en-US" id="ions_AroBiotherapeuticsMember_lbl">Aro Biotherapeutics is a biotechnology company pioneering the development of tissue-targeted genetic medicines with a platform based on a proprietary protein technology called Centyrins.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_AroBiotherapeuticsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_AroBiotherapeuticsMember_lbl1" xml:lang="en-US" id="ions_AroBiotherapeuticsMember_lbl1">Aro Biotherapeutics [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AroBiotherapeuticsMember" xlink:to="ions_AroBiotherapeuticsMember_lbl1" xlink:title="label: AroBiotherapeuticsMember to ions_AroBiotherapeuticsMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_AroBiotherapeuticsMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_AroBiotherapeuticsMember_lbl2" xml:lang="en-US" id="ions_AroBiotherapeuticsMember_lbl2">Aro Biotherapeutics [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AroBiotherapeuticsMember" xlink:to="ions_AroBiotherapeuticsMember_lbl2" xlink:title="label: AroBiotherapeuticsMember to ions_AroBiotherapeuticsMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment" xlink:label="NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment" xlink:title="NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment" />
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    <link:label xlink:type="resource" xlink:label="ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment_lbl1" xml:lang="en-US" id="ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment_lbl1">Number of Privately-Held Companies in which Entity has Equity Investment</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment" xlink:label="NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment" xlink:title="NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment_lbl" xml:lang="en-US" id="ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment_lbl">Number of publicly-held companies, in which the entity has an equity ownership interest of less than 20%, with which it conducts business. These are accounted for at fair value.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment_lbl2" xml:lang="en-US" id="ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment_lbl2">Number of public companies in which there is an equity ownership interest of less than 20%</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment" xlink:to="ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment_lbl3" xlink:title="label: NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment to ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment_lbl3" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_DynacureSasMember" xlink:label="DynacureSasMember" xlink:title="DynacureSasMember" />
    <link:label xlink:type="resource" xlink:label="ions_DynacureSasMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_DynacureSasMember_lbl" xml:lang="en-US" id="ions_DynacureSasMember_lbl">Dynacure, a biotechnology company developing new treatments for patients affected by serious orphan disorders, in which the Company holds an equity investment.</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_SuzhouRiboLifeScienceCoLtdMember" xlink:label="SuzhouRiboLifeScienceCoLtdMember" xlink:title="SuzhouRiboLifeScienceCoLtdMember" />
    <link:label xlink:type="resource" xlink:label="ions_SuzhouRiboLifeScienceCoLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_SuzhouRiboLifeScienceCoLtdMember_lbl" xml:lang="en-US" id="ions_SuzhouRiboLifeScienceCoLtdMember_lbl">Suzhou-Ribo Life Science Co., Ltd. (Suzhou-Ribo) is a small interfering RNA (siRNA) drug development company in China, devoted to the development of innovative nucleic acid therapeutic drugs and related products.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SuzhouRiboLifeScienceCoLtdMember" xlink:to="ions_SuzhouRiboLifeScienceCoLtdMember_lbl" xlink:title="label: SuzhouRiboLifeScienceCoLtdMember to ions_SuzhouRiboLifeScienceCoLtdMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_SuzhouRiboLifeScienceCoLtdMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_SuzhouRiboLifeScienceCoLtdMember_lbl1" xml:lang="en-US" id="ions_SuzhouRiboLifeScienceCoLtdMember_lbl1">Suzhou-Ribo Life Science Co., Ltd. [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NumberOfInvestmentsInPrivatelyHeldCompaniesThatWereRevalued" xlink:label="NumberOfInvestmentsInPrivatelyHeldCompaniesThatWereRevalued" xlink:title="NumberOfInvestmentsInPrivatelyHeldCompaniesThatWereRevalued" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage" />
    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage_lbl" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage_lbl">The percentage of available-for-sale debt securities that mature within one year of the balance sheet date.</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage" />
    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl">The percentage of available-for-sale debt securities that mature within two years of the balance sheet date.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl1" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl1">Available-for-sale Securities, Debt Maturities, within Two Years, Percentage</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage" xlink:to="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl1" xlink:title="label: AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage to ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl2" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage_lbl2">Percentage of available-for-sale securities with a maturity of less than two years</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage" />
    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl">The aggregate percentage of all available-for-sale debt securities, regardless of maturity.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl1" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl1">Available-for-sale Securities, Debt Maturities, Total, Percentage</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl2" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage_lbl2">Total</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage" />
    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl">The percentage of available-for-sale debt securities that mature beyond one year but within two years of the balance sheet date.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl1" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl1">Available-for-sale Securities, Debt Maturities, after One Through Two Years, Percentage</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl2" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage_lbl2">After one year but within two years</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage" xlink:label="AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage" xlink:title="AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage" />
    <link:label xlink:type="resource" xlink:label="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage_lbl" xml:lang="en-US" id="ions_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage_lbl">The percentage of available-for-sale debt securities that mature beyond two years but within three and one-half years of the balance sheet date.</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_MaximumContractMaturityPeriodRange1" xlink:label="MaximumContractMaturityPeriodRange1" xlink:title="MaximumContractMaturityPeriodRange1" />
    <link:label xlink:type="resource" xlink:label="ions_MaximumContractMaturityPeriodRange1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_MaximumContractMaturityPeriodRange1_lbl" xml:lang="en-US" id="ions_MaximumContractMaturityPeriodRange1_lbl">The maximum contract maturity period for the first range of available-for-sale securities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_MaximumContractMaturityPeriodRange2" xlink:label="MaximumContractMaturityPeriodRange2" xlink:title="MaximumContractMaturityPeriodRange2" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_MaximumContractMaturityPeriodRange3" xlink:label="MaximumContractMaturityPeriodRange3" xlink:title="MaximumContractMaturityPeriodRange3" />
    <link:label xlink:type="resource" xlink:label="ions_MaximumContractMaturityPeriodRange3_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_MaximumContractMaturityPeriodRange3_lbl" xml:lang="en-US" id="ions_MaximumContractMaturityPeriodRange3_lbl">The maximum contract maturity period for the third range of available-for-sale securities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ShareBasedPaymentArrangementBoardOfDirectorMember" xlink:label="ShareBasedPaymentArrangementBoardOfDirectorMember" xlink:title="ShareBasedPaymentArrangementBoardOfDirectorMember" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods" xlink:to="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods_lbl" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods to ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods_lbl" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest" xlink:to="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest_lbl" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest to ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest_lbl1" xml:lang="en-US" id="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest_lbl1">Share-based Compensation Arrangement by Share-based Payment Award, Number of units guaranteed to vest</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest_lbl2" xml:lang="en-US" id="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest_lbl2">Number of units guaranteed to vest</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest" />
    <link:label xlink:type="resource" xlink:label="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest_lbl" xml:lang="en-US" id="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest_lbl">Percentage of units guaranteed to vest under share-based payment arrangement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest" xlink:to="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest_lbl" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest to ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest_lbl1" xml:lang="en-US" id="ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest_lbl1">Share-based Compensation Arrangement by Share-based Payment Award, Percentage of units guaranteed to vest</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_IncreaseDecreaseInFungibleShareReserveForEachShareReturningFromFullValueAward" xlink:label="IncreaseDecreaseInFungibleShareReserveForEachShareReturningFromFullValueAward" xlink:title="IncreaseDecreaseInFungibleShareReserveForEachShareReturningFromFullValueAward" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_EquityIncentivePlan2020Member" xlink:label="EquityIncentivePlan2020Member" xlink:title="EquityIncentivePlan2020Member" />
    <link:label xlink:type="resource" xlink:label="ions_EquityIncentivePlan2020Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_EquityIncentivePlan2020Member_lbl" xml:lang="en-US" id="ions_EquityIncentivePlan2020Member_lbl">In December 2020, the Company amended and restated the Akcea 2015 Equity Incentive Plan, including renaming the plan as the Ionis Pharmaceuticals, Inc. 2020 Equity Incentive Plan, or 2020 Plan. The 2020 Plan provided for the issuance of up to 2.6 million shares of Common Stock to employees, directors and consultants who were employees of Akcea prior to the Akcea Acquisition.</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_EquityIncentivePlan2011Member" xlink:label="EquityIncentivePlan2011Member" xlink:title="EquityIncentivePlan2011Member" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CommercialMember" xlink:label="CommercialMember" xlink:title="CommercialMember" />
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    <link:label xlink:type="resource" xlink:label="ions_CommercialMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CommercialMember_lbl2" xml:lang="en-US" id="ions_CommercialMember_lbl2">Commercial Revenue [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_SpinrazaRoyaltiesMember" xlink:label="SpinrazaRoyaltiesMember" xlink:title="SpinrazaRoyaltiesMember" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_LicensingAndOtherRoyaltiesMember" xlink:label="LicensingAndOtherRoyaltiesMember" xlink:title="LicensingAndOtherRoyaltiesMember" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember" xlink:label="ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember" xlink:title="ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NonCashCapitalAndPatentExpenditures" xlink:label="NonCashCapitalAndPatentExpenditures" xlink:title="NonCashCapitalAndPatentExpenditures" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AcquisitionTransactionCostsIncurredButNotYetPaid" xlink:label="AcquisitionTransactionCostsIncurredButNotYetPaid" xlink:title="AcquisitionTransactionCostsIncurredButNotYetPaid" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementsAndLicensingAgreementsAbstract" xlink:label="CollaborativeArrangementsAndLicensingAgreementsAbstract" xlink:title="CollaborativeArrangementsAndLicensingAgreementsAbstract" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_BicycleTherapeuticsPlcMember" xlink:label="BicycleTherapeuticsPlcMember" xlink:title="BicycleTherapeuticsPlcMember" />
    <link:label xlink:type="resource" xlink:label="ions_BicycleTherapeuticsPlcMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_BicycleTherapeuticsPlcMember_lbl" xml:lang="en-US" id="ions_BicycleTherapeuticsPlcMember_lbl">Bicycle Therapeutics plc is a clinical-stage biopharmaceutical company that is pioneering a unique class of chemically synthesized medicines based on its proprietary bicyclic peptide product platform to address therapeutic needs unreachable with existing treatment modalities.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_BicycleTherapeuticsPlcMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_BicycleTherapeuticsPlcMember_lbl1" xml:lang="en-US" id="ions_BicycleTherapeuticsPlcMember_lbl1">Bicycle Therapeutics plc [Member]</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BicycleTherapeuticsPlcMember" xlink:to="ions_BicycleTherapeuticsPlcMember_lbl3" xlink:title="label: BicycleTherapeuticsPlcMember to ions_BicycleTherapeuticsPlcMember_lbl3" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ProqrTherapeuticsNVMember" xlink:label="ProqrTherapeuticsNVMember" xlink:title="ProqrTherapeuticsNVMember" />
    <link:label xlink:type="resource" xlink:label="ions_ProqrTherapeuticsNVMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ProqrTherapeuticsNVMember_lbl" xml:lang="en-US" id="ions_ProqrTherapeuticsNVMember_lbl">ProQR Therapeutics N.V. is a clinical stage biotech company that discovers and develops unique Ribonucleic acid (RNA) therapies for severe genetic disorders, specialized in retinal diseases.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_EquitySecuritiesPrivateCompaniesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_EquitySecuritiesPrivateCompaniesMember_lbl" xml:lang="en-US" id="ions_EquitySecuritiesPrivateCompaniesMember_lbl">Ownership interest or right to acquire or dispose of ownership interest in private corporations and other legal entities for which ownership interest is represented by shares of common or preferred stock, convertible securities, stock rights, or stock warrants.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EquitySecuritiesPrivateCompaniesMember" xlink:to="ions_EquitySecuritiesPrivateCompaniesMember_lbl" xlink:title="label: EquitySecuritiesPrivateCompaniesMember to ions_EquitySecuritiesPrivateCompaniesMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_EquitySecuritiesPrivateCompaniesMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_EquitySecuritiesPrivateCompaniesMember_lbl1" xml:lang="en-US" id="ions_EquitySecuritiesPrivateCompaniesMember_lbl1">Equity Securities, Private Companies [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EquitySecuritiesPrivateCompaniesMember" xlink:to="ions_EquitySecuritiesPrivateCompaniesMember_lbl1" xlink:title="label: EquitySecuritiesPrivateCompaniesMember to ions_EquitySecuritiesPrivateCompaniesMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_EquitySecuritiesPrivateCompaniesMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_EquitySecuritiesPrivateCompaniesMember_lbl2" xml:lang="en-US" id="ions_EquitySecuritiesPrivateCompaniesMember_lbl2">Equity Securities in Private Companies [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EquitySecuritiesPrivateCompaniesMember" xlink:to="ions_EquitySecuritiesPrivateCompaniesMember_lbl2" xlink:title="label: EquitySecuritiesPrivateCompaniesMember to ions_EquitySecuritiesPrivateCompaniesMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NumberOfAgreementsWithCollaborationPartner" xlink:label="NumberOfAgreementsWithCollaborationPartner" xlink:title="NumberOfAgreementsWithCollaborationPartner" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfAgreementsWithCollaborationPartner_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_NumberOfAgreementsWithCollaborationPartner_lbl" xml:lang="en-US" id="ions_NumberOfAgreementsWithCollaborationPartner_lbl">The number of agreements entered into with the collaboration partner.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfAgreementsWithCollaborationPartner" xlink:to="ions_NumberOfAgreementsWithCollaborationPartner_lbl" xlink:title="label: NumberOfAgreementsWithCollaborationPartner to ions_NumberOfAgreementsWithCollaborationPartner_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfAgreementsWithCollaborationPartner_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_NumberOfAgreementsWithCollaborationPartner_lbl1" xml:lang="en-US" id="ions_NumberOfAgreementsWithCollaborationPartner_lbl1">Number of agreements with collaboration partner</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfAgreementsWithCollaborationPartner" xlink:to="ions_NumberOfAgreementsWithCollaborationPartner_lbl1" xlink:title="label: NumberOfAgreementsWithCollaborationPartner to ions_NumberOfAgreementsWithCollaborationPartner_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfAgreementsWithCollaborationPartner_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_NumberOfAgreementsWithCollaborationPartner_lbl2" xml:lang="en-US" id="ions_NumberOfAgreementsWithCollaborationPartner_lbl2">Number of agreements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfAgreementsWithCollaborationPartner" xlink:to="ions_NumberOfAgreementsWithCollaborationPartner_lbl2" xlink:title="label: NumberOfAgreementsWithCollaborationPartner to ions_NumberOfAgreementsWithCollaborationPartner_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_UpfrontPaymentReceived" xlink:label="UpfrontPaymentReceived" xlink:title="UpfrontPaymentReceived" />
    <link:label xlink:type="resource" xlink:label="ions_UpfrontPaymentReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_UpfrontPaymentReceived_lbl" xml:lang="en-US" id="ions_UpfrontPaymentReceived_lbl">The amount of upfront payments received during the period under the collaboration agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UpfrontPaymentReceived" xlink:to="ions_UpfrontPaymentReceived_lbl" xlink:title="label: UpfrontPaymentReceived to ions_UpfrontPaymentReceived_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_UpfrontPaymentReceived_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_UpfrontPaymentReceived_lbl1" xml:lang="en-US" id="ions_UpfrontPaymentReceived_lbl1">Upfront payment received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UpfrontPaymentReceived" xlink:to="ions_UpfrontPaymentReceived_lbl1" xlink:title="label: UpfrontPaymentReceived to ions_UpfrontPaymentReceived_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_UpfrontPaymentReceived_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_UpfrontPaymentReceived_lbl2" xml:lang="en-US" id="ions_UpfrontPaymentReceived_lbl2">Upfront payment received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UpfrontPaymentReceived" xlink:to="ions_UpfrontPaymentReceived_lbl2" xlink:title="label: UpfrontPaymentReceived to ions_UpfrontPaymentReceived_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember" xlink:label="CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember" xlink:title="CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl">Represents information pertaining to the expanded collaborative arrangement entered into with Biogen Inc. in April 2018 to develop novel antisense drug candidates for a broad range of neurological diseases.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl1" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl1">Collaborative Arrangement and Licensing Agreement Entered Into in April 2018 with Biogen [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl1" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl2" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl2">Biogen 2018 Strategic Neurology [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl2" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember" xlink:label="CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember" xlink:title="CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl">Represents information pertaining to collaborative arrangement entered into with Bayer HealthCare in May 2015 to develop and commercialize IONIS-FXI for the prevention of thrombosis.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl1" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl1">Collaborative Arrangement and Licensing Agreement Entered Into in May 2015 with Bayer [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl1" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl2" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl2">Bayer [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl2" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations" xlink:label="RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations" xlink:title="RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl">The number of separate performance obligations under the collaboration agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations" xlink:to="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl" xlink:title="label: RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations to ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl1" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl1">Revenue from Contract with Customer, Number of separate performance obligations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations" xlink:to="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl1" xlink:title="label: RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations to ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl2" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl2">Number of separate performance obligations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations" xlink:to="ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl2" xlink:title="label: RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations to ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract" xlink:label="RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract" xlink:title="RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl">The number of performance obligations at the inception of a contract.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract" xlink:to="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl" xlink:title="label: RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract to ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl1" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl1">Revenue from Contract with Customer, Number of performance obligations at inception of contract</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract" xlink:to="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl1" xlink:title="label: RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract to ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl2" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl2">Number of performance obligations at inception of contract</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract" xlink:to="ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl2" xlink:title="label: RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract to ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_PelacarsenMember" xlink:label="PelacarsenMember" xlink:title="PelacarsenMember" />
    <link:label xlink:type="resource" xlink:label="ions_PelacarsenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_PelacarsenMember_lbl" xml:lang="en-US" id="ions_PelacarsenMember_lbl">Pelacarsen, also known as IONIS-APO(a)-L, AKCEA-APO(a)-L, and TQJ230, is an investigational antisense medicine designed to reduce apolipoprotein(a) in the liver in patients suffering from high levels of the lipoprotein Lp(a).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PelacarsenMember" xlink:to="ions_PelacarsenMember_lbl" xlink:title="label: PelacarsenMember to ions_PelacarsenMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_PelacarsenMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_PelacarsenMember_lbl1" xml:lang="en-US" id="ions_PelacarsenMember_lbl1">Pelacarsen [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PelacarsenMember" xlink:to="ions_PelacarsenMember_lbl1" xlink:title="label: PelacarsenMember to ions_PelacarsenMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_PelacarsenMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_PelacarsenMember_lbl2" xml:lang="en-US" id="ions_PelacarsenMember_lbl2">Pelacarsen [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PelacarsenMember" xlink:to="ions_PelacarsenMember_lbl2" xlink:title="label: PelacarsenMember to ions_PelacarsenMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_RevenueFromContractWithCustomerTransactionPriceAdditions" xlink:label="RevenueFromContractWithCustomerTransactionPriceAdditions" xlink:title="RevenueFromContractWithCustomerTransactionPriceAdditions" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl">The additional amount of consideration the Company earned under the collaboration agreement that is added to the transaction price.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerTransactionPriceAdditions" xlink:to="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl" xlink:title="label: RevenueFromContractWithCustomerTransactionPriceAdditions to ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl1" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl1">Revenue from Contract with Customer, Transaction Price, Additions</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerTransactionPriceAdditions" xlink:to="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl1" xlink:title="label: RevenueFromContractWithCustomerTransactionPriceAdditions to ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl2" xml:lang="en-US" id="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl2">Milestone payment received and added to transaction price</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromContractWithCustomerTransactionPriceAdditions" xlink:to="ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl2" xlink:title="label: RevenueFromContractWithCustomerTransactionPriceAdditions to ions_RevenueFromContractWithCustomerTransactionPriceAdditions_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_BiogenIncMember" xlink:label="BiogenIncMember" xlink:title="BiogenIncMember" />
    <link:label xlink:type="resource" xlink:label="ions_BiogenIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_BiogenIncMember_lbl" xml:lang="en-US" id="ions_BiogenIncMember_lbl">Biogen Inc. is an American multinational biotechnology company.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BiogenIncMember" xlink:to="ions_BiogenIncMember_lbl" xlink:title="label: BiogenIncMember to ions_BiogenIncMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_BiogenIncMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_BiogenIncMember_lbl1" xml:lang="en-US" id="ions_BiogenIncMember_lbl1">Biogen Inc. [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementAndLicensingAgreementAmendedInFebruary2017WithBayerMember" xlink:label="CollaborativeArrangementAndLicensingAgreementAmendedInFebruary2017WithBayerMember" xlink:title="CollaborativeArrangementAndLicensingAgreementAmendedInFebruary2017WithBayerMember" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_Ion455Member" xlink:label="Ion455Member" xlink:title="Ion455Member" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJuly2015WithAstrazenecaMember" xlink:label="CollaborativeArrangementAndLicensingAgreementEnteredIntoInJuly2015WithAstrazenecaMember" xlink:title="CollaborativeArrangementAndLicensingAgreementEnteredIntoInJuly2015WithAstrazenecaMember" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInAugust2018WithPtcTherapeuticsMember" xlink:label="CollaborativeArrangementAndLicensingAgreementEnteredIntoInAugust2018WithPtcTherapeuticsMember" xlink:title="CollaborativeArrangementAndLicensingAgreementEnteredIntoInAugust2018WithPtcTherapeuticsMember" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" xlink:label="CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" xlink:title="CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember" />
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_PercentageEnrollmentInPhase3Study" xlink:label="PercentageEnrollmentInPhase3Study" xlink:title="PercentageEnrollmentInPhase3Study" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PercentageEnrollmentInPhase3Study" xlink:to="ions_PercentageEnrollmentInPhase3Study_lbl2" xlink:title="label: PercentageEnrollmentInPhase3Study to ions_PercentageEnrollmentInPhase3Study_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_LesseeOperatingLeaseFreeRentPeriod" xlink:label="LesseeOperatingLeaseFreeRentPeriod" xlink:title="LesseeOperatingLeaseFreeRentPeriod" />
    <link:label xlink:type="resource" xlink:label="ions_LesseeOperatingLeaseFreeRentPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_LesseeOperatingLeaseFreeRentPeriod_lbl" xml:lang="en-US" id="ions_LesseeOperatingLeaseFreeRentPeriod_lbl">Period of time lessee will receive free rent under operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseFreeRentPeriod" xlink:to="ions_LesseeOperatingLeaseFreeRentPeriod_lbl" xlink:title="label: LesseeOperatingLeaseFreeRentPeriod to ions_LesseeOperatingLeaseFreeRentPeriod_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_LesseeOperatingLeaseFreeRentPeriod_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_LesseeOperatingLeaseFreeRentPeriod_lbl1" xml:lang="en-US" id="ions_LesseeOperatingLeaseFreeRentPeriod_lbl1">Lessee, Operating Lease, Free Rent Period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseFreeRentPeriod" xlink:to="ions_LesseeOperatingLeaseFreeRentPeriod_lbl1" xlink:title="label: LesseeOperatingLeaseFreeRentPeriod to ions_LesseeOperatingLeaseFreeRentPeriod_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_LesseeOperatingLeaseFreeRentPeriod_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_LesseeOperatingLeaseFreeRentPeriod_lbl2" xml:lang="en-US" id="ions_LesseeOperatingLeaseFreeRentPeriod_lbl2">Free rent period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LesseeOperatingLeaseFreeRentPeriod" xlink:to="ions_LesseeOperatingLeaseFreeRentPeriod_lbl2" xlink:title="label: LesseeOperatingLeaseFreeRentPeriod to ions_LesseeOperatingLeaseFreeRentPeriod_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AkceaTherapeuticsIncMember" xlink:label="AkceaTherapeuticsIncMember" xlink:title="AkceaTherapeuticsIncMember" />
    <link:label xlink:type="resource" xlink:label="ions_AkceaTherapeuticsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_AkceaTherapeuticsIncMember_lbl" xml:lang="en-US" id="ions_AkceaTherapeuticsIncMember_lbl">Akcea Therapeutics, Inc. is a subsidiary of the Company and was formed to develop and commercialize drugs for cardiometabolic disorders.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AkceaTherapeuticsIncMember" xlink:to="ions_AkceaTherapeuticsIncMember_lbl" xlink:title="label: AkceaTherapeuticsIncMember to ions_AkceaTherapeuticsIncMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_AkceaTherapeuticsIncMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_AkceaTherapeuticsIncMember_lbl1" xml:lang="en-US" id="ions_AkceaTherapeuticsIncMember_lbl1">Akcea Therapeutics, Inc. [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AkceaTherapeuticsIncMember" xlink:to="ions_AkceaTherapeuticsIncMember_lbl1" xlink:title="label: AkceaTherapeuticsIncMember to ions_AkceaTherapeuticsIncMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_AkceaTherapeuticsIncMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_AkceaTherapeuticsIncMember_lbl2" xml:lang="en-US" id="ions_AkceaTherapeuticsIncMember_lbl2">Akcea [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AkceaTherapeuticsIncMember" xlink:to="ions_AkceaTherapeuticsIncMember_lbl2" xlink:title="label: AkceaTherapeuticsIncMember to ions_AkceaTherapeuticsIncMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_WeightedAverageNumberOfSharesOwnedInSubsidiary" xlink:label="WeightedAverageNumberOfSharesOwnedInSubsidiary" xlink:title="WeightedAverageNumberOfSharesOwnedInSubsidiary" />
    <link:label xlink:type="resource" xlink:label="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl" xml:lang="en-US" id="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl">Number of shares owned in the subsidiary during the reporting period determined by relating the portion of time within a reporting period that shares have been owned to the total time in that period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfSharesOwnedInSubsidiary" xlink:to="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl" xlink:title="label: WeightedAverageNumberOfSharesOwnedInSubsidiary to ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl1" xml:lang="en-US" id="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl1">Weighted average number of shares owned in subsidiary</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfSharesOwnedInSubsidiary" xlink:to="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl1" xlink:title="label: WeightedAverageNumberOfSharesOwnedInSubsidiary to ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl2" xml:lang="en-US" id="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl2">Weighted average shares owned in Akcea (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfSharesOwnedInSubsidiary" xlink:to="ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl2" xlink:title="label: WeightedAverageNumberOfSharesOwnedInSubsidiary to ions_WeightedAverageNumberOfSharesOwnedInSubsidiary_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_IonisCoreMember" xlink:label="IonisCoreMember" xlink:title="IonisCoreMember" />
    <link:label xlink:type="resource" xlink:label="ions_IonisCoreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_IonisCoreMember_lbl" xml:lang="en-US" id="ions_IonisCoreMember_lbl">Reportable segment in which the Company is exploiting a novel drug discovery platform created to generate a broad pipeline of first-in-class or best-in-class drugs for the Company and its partners. This segment generates revenue from a multifaceted partnering strategy. This strategy includes revenue from collaborations with preferred partners, traditional alliances and working with a consortium of companies that can exploit the Company's drugs and technology. Revenue from collaborations with preferred partners and traditional alliances may consist of upfront payments, milestone payments, licensing fees and royalties.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IonisCoreMember" xlink:to="ions_IonisCoreMember_lbl" xlink:title="label: IonisCoreMember to ions_IonisCoreMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_IonisCoreMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_IonisCoreMember_lbl1" xml:lang="en-US" id="ions_IonisCoreMember_lbl1">Ionis Core [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IonisCoreMember" xlink:to="ions_IonisCoreMember_lbl1" xlink:title="label: IonisCoreMember to ions_IonisCoreMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_IonisCoreMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_IonisCoreMember_lbl2" xml:lang="en-US" id="ions_IonisCoreMember_lbl2">Ionis [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IonisCoreMember" xlink:to="ions_IonisCoreMember_lbl2" xlink:title="label: IonisCoreMember to ions_IonisCoreMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CumulativePaymentsReceived" xlink:label="CumulativePaymentsReceived" xlink:title="CumulativePaymentsReceived" />
    <link:label xlink:type="resource" xlink:label="ions_CumulativePaymentsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CumulativePaymentsReceived_lbl" xml:lang="en-US" id="ions_CumulativePaymentsReceived_lbl">Cumulative amount of payments received under the collaboration agreement as of the end of the reporting period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CumulativePaymentsReceived" xlink:to="ions_CumulativePaymentsReceived_lbl" xlink:title="label: CumulativePaymentsReceived to ions_CumulativePaymentsReceived_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CumulativePaymentsReceived_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CumulativePaymentsReceived_lbl1" xml:lang="en-US" id="ions_CumulativePaymentsReceived_lbl1">Cumulative payments received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CumulativePaymentsReceived" xlink:to="ions_CumulativePaymentsReceived_lbl1" xlink:title="label: CumulativePaymentsReceived to ions_CumulativePaymentsReceived_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CumulativePaymentsReceived_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CumulativePaymentsReceived_lbl2" xml:lang="en-US" id="ions_CumulativePaymentsReceived_lbl2">Cumulative payments received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CumulativePaymentsReceived" xlink:to="ions_CumulativePaymentsReceived_lbl2" xlink:title="label: CumulativePaymentsReceived to ions_CumulativePaymentsReceived_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementAndLicensingAgreementAbstract" xlink:label="CollaborativeArrangementAndLicensingAgreementAbstract" xlink:title="CollaborativeArrangementAndLicensingAgreementAbstract" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementAbstract_lbl1" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementAbstract_lbl1">Collaborative Arrangement and Licensing Agreement [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementAbstract" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementAbstract_lbl1" xlink:title="label: CollaborativeArrangementAndLicensingAgreementAbstract to ions_CollaborativeArrangementAndLicensingAgreementAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NextPotentialMilestonePayment" xlink:label="NextPotentialMilestonePayment" xlink:title="NextPotentialMilestonePayment" />
    <link:label xlink:type="resource" xlink:label="ions_NextPotentialMilestonePayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_NextPotentialMilestonePayment_lbl" xml:lang="en-US" id="ions_NextPotentialMilestonePayment_lbl">The next potential milestone payment to be earned under the collaboration agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NextPotentialMilestonePayment" xlink:to="ions_NextPotentialMilestonePayment_lbl" xlink:title="label: NextPotentialMilestonePayment to ions_NextPotentialMilestonePayment_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_NextPotentialMilestonePayment_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_NextPotentialMilestonePayment_lbl1" xml:lang="en-US" id="ions_NextPotentialMilestonePayment_lbl1">Next potential milestone payment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NextPotentialMilestonePayment" xlink:to="ions_NextPotentialMilestonePayment_lbl1" xlink:title="label: NextPotentialMilestonePayment to ions_NextPotentialMilestonePayment_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_NextPotentialMilestonePayment_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_NextPotentialMilestonePayment_lbl2" xml:lang="en-US" id="ions_NextPotentialMilestonePayment_lbl2">Next prospective milestone</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NextPotentialMilestonePayment" xlink:to="ions_NextPotentialMilestonePayment_lbl2" xlink:title="label: NextPotentialMilestonePayment to ions_NextPotentialMilestonePayment_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ClinicalRawMaterialsMember" xlink:label="ClinicalRawMaterialsMember" xlink:title="ClinicalRawMaterialsMember" />
    <link:label xlink:type="resource" xlink:label="ions_ClinicalRawMaterialsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ClinicalRawMaterialsMember_lbl" xml:lang="en-US" id="ions_ClinicalRawMaterialsMember_lbl">Raw materials purchased for use in producing medicines that have alternative future uses until they are used.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClinicalRawMaterialsMember" xlink:to="ions_ClinicalRawMaterialsMember_lbl" xlink:title="label: ClinicalRawMaterialsMember to ions_ClinicalRawMaterialsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_ClinicalRawMaterialsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_ClinicalRawMaterialsMember_lbl1" xml:lang="en-US" id="ions_ClinicalRawMaterialsMember_lbl1">Clinical Raw Materials [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClinicalRawMaterialsMember" xlink:to="ions_ClinicalRawMaterialsMember_lbl1" xlink:title="label: ClinicalRawMaterialsMember to ions_ClinicalRawMaterialsMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_ClinicalRawMaterialsMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_ClinicalRawMaterialsMember_lbl2" xml:lang="en-US" id="ions_ClinicalRawMaterialsMember_lbl2">Clinical [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClinicalRawMaterialsMember" xlink:to="ions_ClinicalRawMaterialsMember_lbl2" xlink:title="label: ClinicalRawMaterialsMember to ions_ClinicalRawMaterialsMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CommercialRawMaterialsMember" xlink:label="CommercialRawMaterialsMember" xlink:title="CommercialRawMaterialsMember" />
    <link:label xlink:type="resource" xlink:label="ions_CommercialRawMaterialsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CommercialRawMaterialsMember_lbl" xml:lang="en-US" id="ions_CommercialRawMaterialsMember_lbl">Raw materials purchased for manufacturing medicines for commercial production.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommercialRawMaterialsMember" xlink:to="ions_CommercialRawMaterialsMember_lbl" xlink:title="label: CommercialRawMaterialsMember to ions_CommercialRawMaterialsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CommercialRawMaterialsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CommercialRawMaterialsMember_lbl1" xml:lang="en-US" id="ions_CommercialRawMaterialsMember_lbl1">Commercial Raw Materials [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommercialRawMaterialsMember" xlink:to="ions_CommercialRawMaterialsMember_lbl1" xlink:title="label: CommercialRawMaterialsMember to ions_CommercialRawMaterialsMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CommercialRawMaterialsMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CommercialRawMaterialsMember_lbl2" xml:lang="en-US" id="ions_CommercialRawMaterialsMember_lbl2">Commercial [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommercialRawMaterialsMember" xlink:to="ions_CommercialRawMaterialsMember_lbl2" xlink:title="label: CommercialRawMaterialsMember to ions_CommercialRawMaterialsMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NextPotentialPayment" xlink:label="NextPotentialPayment" xlink:title="NextPotentialPayment" />
    <link:label xlink:type="resource" xlink:label="ions_NextPotentialPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_NextPotentialPayment_lbl" xml:lang="en-US" id="ions_NextPotentialPayment_lbl">The next potential payment to be earned under the collaboration agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NextPotentialPayment" xlink:to="ions_NextPotentialPayment_lbl" xlink:title="label: NextPotentialPayment to ions_NextPotentialPayment_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_NextPotentialPayment_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_NextPotentialPayment_lbl1" xml:lang="en-US" id="ions_NextPotentialPayment_lbl1">Next potential payment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NextPotentialPayment" xlink:to="ions_NextPotentialPayment_lbl1" xlink:title="label: NextPotentialPayment to ions_NextPotentialPayment_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_NextPotentialPayment_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_NextPotentialPayment_lbl2" xml:lang="en-US" id="ions_NextPotentialPayment_lbl2">Next prospective payment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NextPotentialPayment" xlink:to="ions_NextPotentialPayment_lbl2" xlink:title="label: NextPotentialPayment to ions_NextPotentialPayment_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember" xlink:label="CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember" xlink:title="CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl">Represents information pertaining to the collaborative arrangement entered into with Biogen Inc. in September 2013. This agreement is a long-term strategic relationship focused on applying antisense technology to advance the treatment of neurodegenerative diseases (Strategic Neurology).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl1" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl1">Collaborative Arrangement and Licensing Agreement Entered Into in September 2013 with Biogen [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl1" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl2" xml:lang="en-US" id="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl2">2013 Strategic Neurology [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember" xlink:to="ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl2" xlink:title="label: CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember to ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember" xlink:label="CollaborativeArrangementsAndLicensingAgreementsBiogenMember" xlink:title="CollaborativeArrangementsAndLicensingAgreementsBiogenMember" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl" xml:lang="en-US" id="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl">Represents information pertaining to the collaborative arrangements and licensing agreements entered into with Biogen Inc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementsAndLicensingAgreementsBiogenMember" xlink:to="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl" xlink:title="label: CollaborativeArrangementsAndLicensingAgreementsBiogenMember to ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl1" xml:lang="en-US" id="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl1">Collaborative Arrangements and Licensing Agreements, Biogen [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementsAndLicensingAgreementsBiogenMember" xlink:to="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl1" xlink:title="label: CollaborativeArrangementsAndLicensingAgreementsBiogenMember to ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl2" xml:lang="en-US" id="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl2">Biogen [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementsAndLicensingAgreementsBiogenMember" xlink:to="ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl2" xlink:title="label: CollaborativeArrangementsAndLicensingAgreementsBiogenMember to ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NumberOfMedicinesBeingDeveloped" xlink:label="NumberOfMedicinesBeingDeveloped" xlink:title="NumberOfMedicinesBeingDeveloped" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfMedicinesBeingDeveloped_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_NumberOfMedicinesBeingDeveloped_lbl" xml:lang="en-US" id="ions_NumberOfMedicinesBeingDeveloped_lbl">The number of medicines currently being developed under the collaboration agreement(s).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfMedicinesBeingDeveloped" xlink:to="ions_NumberOfMedicinesBeingDeveloped_lbl" xlink:title="label: NumberOfMedicinesBeingDeveloped to ions_NumberOfMedicinesBeingDeveloped_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfMedicinesBeingDeveloped_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_NumberOfMedicinesBeingDeveloped_lbl1" xml:lang="en-US" id="ions_NumberOfMedicinesBeingDeveloped_lbl1">Number of medicines being developed</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfMedicinesBeingDeveloped" xlink:to="ions_NumberOfMedicinesBeingDeveloped_lbl1" xlink:title="label: NumberOfMedicinesBeingDeveloped to ions_NumberOfMedicinesBeingDeveloped_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfMedicinesBeingDeveloped_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_NumberOfMedicinesBeingDeveloped_lbl2" xml:lang="en-US" id="ions_NumberOfMedicinesBeingDeveloped_lbl2">Number of medicines currently being developed</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfMedicinesBeingDeveloped" xlink:to="ions_NumberOfMedicinesBeingDeveloped_lbl2" xlink:title="label: NumberOfMedicinesBeingDeveloped to ions_NumberOfMedicinesBeingDeveloped_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_Ion541Member" xlink:label="Ion541Member" xlink:title="Ion541Member" />
    <link:label xlink:type="resource" xlink:label="ions_Ion541Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_Ion541Member_lbl" xml:lang="en-US" id="ions_Ion541Member_lbl">ION541, also known as BIIB105, is an investigational antisense medicine targeting ataxin 2 (ATXN2) RNA.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Ion541Member" xlink:to="ions_Ion541Member_lbl" xlink:title="label: Ion541Member to ions_Ion541Member_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_Ion541Member_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_Ion541Member_lbl1" xml:lang="en-US" id="ions_Ion541Member_lbl1">Ion541 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Ion541Member" xlink:to="ions_Ion541Member_lbl1" xlink:title="label: Ion541Member to ions_Ion541Member_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_Ion541Member_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_Ion541Member_lbl2" xml:lang="en-US" id="ions_Ion541Member_lbl2">ION541 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Ion541Member" xlink:to="ions_Ion541Member_lbl2" xlink:title="label: Ion541Member to ions_Ion541Member_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable" xlink:label="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable" xlink:title="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl" xml:lang="en-US" id="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl">Disclosure of information about collaborative arrangements and non-collaborative arrangement transactions.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable" xlink:to="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl" xlink:title="label: CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable to ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl1" xml:lang="en-US" id="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl1">Collaborative Arrangements and Non-collaborative Arrangement Transactions Disclosure [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable" xlink:to="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl1" xlink:title="label: CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable to ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureTable_lbl1" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems" xlink:label="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems" xlink:title="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl" xml:lang="en-US" id="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems" xlink:to="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl" xlink:title="label: CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems to ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl1" xml:lang="en-US" id="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl1">Collaborative Arrangements and Non-collaborative Arrangement Transactions Disclosure [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems" xlink:to="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl1" xlink:title="label: CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems to ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl2" xml:lang="en-US" id="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl2">Collaborative Arrangements and Licensing Agreements [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems" xlink:to="ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl2" xlink:title="label: CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems to ions_CollaborativeArrangementsAndNonCollaborativeArrangementTransactionsDisclosureLineItems_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_PeriodAfterBillingWhenPaymentIsReceived" xlink:label="PeriodAfterBillingWhenPaymentIsReceived" xlink:title="PeriodAfterBillingWhenPaymentIsReceived" />
    <link:label xlink:type="resource" xlink:label="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl" xml:lang="en-US" id="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl">The time period between billing a collaboration partner for goods delivered or services performed that are due unconditionally and payment is received from the collaboration partner, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodAfterBillingWhenPaymentIsReceived" xlink:to="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl" xlink:title="label: PeriodAfterBillingWhenPaymentIsReceived to ions_PeriodAfterBillingWhenPaymentIsReceived_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl1" xml:lang="en-US" id="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl1">Period after billing when payment is received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodAfterBillingWhenPaymentIsReceived" xlink:to="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl1" xlink:title="label: PeriodAfterBillingWhenPaymentIsReceived to ions_PeriodAfterBillingWhenPaymentIsReceived_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl2" xml:lang="en-US" id="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl2">Period of time after billing when payment is received</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PeriodAfterBillingWhenPaymentIsReceived" xlink:to="ions_PeriodAfterBillingWhenPaymentIsReceived_lbl2" xlink:title="label: PeriodAfterBillingWhenPaymentIsReceived to ions_PeriodAfterBillingWhenPaymentIsReceived_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_SignificantPartnersAbstract" xlink:label="SignificantPartnersAbstract" xlink:title="SignificantPartnersAbstract" />
    <link:label xlink:type="resource" xlink:label="ions_SignificantPartnersAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_SignificantPartnersAbstract_lbl1" xml:lang="en-US" id="ions_SignificantPartnersAbstract_lbl1">Significant Partners [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SignificantPartnersAbstract" xlink:to="ions_SignificantPartnersAbstract_lbl1" xlink:title="label: SignificantPartnersAbstract to ions_SignificantPartnersAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_NumberOfSignificantCustomers" xlink:label="NumberOfSignificantCustomers" xlink:title="NumberOfSignificantCustomers" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfSignificantCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_NumberOfSignificantCustomers_lbl" xml:lang="en-US" id="ions_NumberOfSignificantCustomers_lbl">The number of significant customers with which the Company does business.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfSignificantCustomers" xlink:to="ions_NumberOfSignificantCustomers_lbl" xlink:title="label: NumberOfSignificantCustomers to ions_NumberOfSignificantCustomers_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfSignificantCustomers_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_NumberOfSignificantCustomers_lbl1" xml:lang="en-US" id="ions_NumberOfSignificantCustomers_lbl1">Number of Significant Customers</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfSignificantCustomers" xlink:to="ions_NumberOfSignificantCustomers_lbl1" xlink:title="label: NumberOfSignificantCustomers to ions_NumberOfSignificantCustomers_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_NumberOfSignificantCustomers_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_NumberOfSignificantCustomers_lbl2" xml:lang="en-US" id="ions_NumberOfSignificantCustomers_lbl2">Number of significant customers</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfSignificantCustomers" xlink:to="ions_NumberOfSignificantCustomers_lbl2" xlink:title="label: NumberOfSignificantCustomers to ions_NumberOfSignificantCustomers_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_TwoSignificantCustomersMember" xlink:label="TwoSignificantCustomersMember" xlink:title="TwoSignificantCustomersMember" />
    <link:label xlink:type="resource" xlink:label="ions_TwoSignificantCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_TwoSignificantCustomersMember_lbl" xml:lang="en-US" id="ions_TwoSignificantCustomersMember_lbl">Two significant corporate partners and leading global pharmaceutical companies that are working alongside the Company to develop the Company's drugs, advance the Company's technology, and prepare to commercialize and sell the Company's drugs under collaborative arrangement and licensing agreements.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TwoSignificantCustomersMember" xlink:to="ions_TwoSignificantCustomersMember_lbl" xlink:title="label: TwoSignificantCustomersMember to ions_TwoSignificantCustomersMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_TwoSignificantCustomersMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_TwoSignificantCustomersMember_lbl1" xml:lang="en-US" id="ions_TwoSignificantCustomersMember_lbl1">Two Significant Customers [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TwoSignificantCustomersMember" xlink:to="ions_TwoSignificantCustomersMember_lbl1" xlink:title="label: TwoSignificantCustomersMember to ions_TwoSignificantCustomersMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_TwoSignificantCustomersMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_TwoSignificantCustomersMember_lbl2" xml:lang="en-US" id="ions_TwoSignificantCustomersMember_lbl2">Two Significant Customers [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TwoSignificantCustomersMember" xlink:to="ions_TwoSignificantCustomersMember_lbl2" xlink:title="label: TwoSignificantCustomersMember to ions_TwoSignificantCustomersMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ThreeSignificantCustomersMember" xlink:label="ThreeSignificantCustomersMember" xlink:title="ThreeSignificantCustomersMember" />
    <link:label xlink:type="resource" xlink:label="ions_ThreeSignificantCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ThreeSignificantCustomersMember_lbl" xml:lang="en-US" id="ions_ThreeSignificantCustomersMember_lbl">Three significant corporate partners and leading global pharmaceutical companies that are working alongside the Company to develop the Company's drugs, advance the Company's technology, and prepare to commercialize and sell the Company's drugs under collaborative arrangement and licensing agreements.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ThreeSignificantCustomersMember" xlink:to="ions_ThreeSignificantCustomersMember_lbl" xlink:title="label: ThreeSignificantCustomersMember to ions_ThreeSignificantCustomersMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_ThreeSignificantCustomersMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_ThreeSignificantCustomersMember_lbl1" xml:lang="en-US" id="ions_ThreeSignificantCustomersMember_lbl1">Three Significant Customers [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ThreeSignificantCustomersMember" xlink:to="ions_ThreeSignificantCustomersMember_lbl1" xlink:title="label: ThreeSignificantCustomersMember to ions_ThreeSignificantCustomersMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_ThreeSignificantCustomersMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_ThreeSignificantCustomersMember_lbl2" xml:lang="en-US" id="ions_ThreeSignificantCustomersMember_lbl2">Three Significant Customers [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ThreeSignificantCustomersMember" xlink:to="ions_ThreeSignificantCustomersMember_lbl2" xlink:title="label: ThreeSignificantCustomersMember to ions_ThreeSignificantCustomersMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_DebtInstrumentNumberOfConvertibleNotes" xlink:label="DebtInstrumentNumberOfConvertibleNotes" xlink:title="DebtInstrumentNumberOfConvertibleNotes" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentNumberOfConvertibleNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_DebtInstrumentNumberOfConvertibleNotes_lbl" xml:lang="en-US" id="ions_DebtInstrumentNumberOfConvertibleNotes_lbl">Number of outstanding convertible notes.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentNumberOfConvertibleNotes" xlink:to="ions_DebtInstrumentNumberOfConvertibleNotes_lbl" xlink:title="label: DebtInstrumentNumberOfConvertibleNotes to ions_DebtInstrumentNumberOfConvertibleNotes_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentNumberOfConvertibleNotes_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_DebtInstrumentNumberOfConvertibleNotes_lbl1" xml:lang="en-US" id="ions_DebtInstrumentNumberOfConvertibleNotes_lbl1">Debt Instrument, Number of convertible notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentNumberOfConvertibleNotes" xlink:to="ions_DebtInstrumentNumberOfConvertibleNotes_lbl1" xlink:title="label: DebtInstrumentNumberOfConvertibleNotes to ions_DebtInstrumentNumberOfConvertibleNotes_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentNumberOfConvertibleNotes_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_DebtInstrumentNumberOfConvertibleNotes_lbl2" xml:lang="en-US" id="ions_DebtInstrumentNumberOfConvertibleNotes_lbl2">Number of outstanding convertible notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentNumberOfConvertibleNotes" xlink:to="ions_DebtInstrumentNumberOfConvertibleNotes_lbl2" xlink:title="label: DebtInstrumentNumberOfConvertibleNotes to ions_DebtInstrumentNumberOfConvertibleNotes_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_RestructuredNorthAmericanTegsediOperationsMember" xlink:label="RestructuredNorthAmericanTegsediOperationsMember" xlink:title="RestructuredNorthAmericanTegsediOperationsMember" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl" xml:lang="en-US" id="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl">Restructuring of the Akcea workforce in the Company's North American TEGSEDI Operations.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuredNorthAmericanTegsediOperationsMember" xlink:to="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl" xlink:title="label: RestructuredNorthAmericanTegsediOperationsMember to ions_RestructuredNorthAmericanTegsediOperationsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl1" xml:lang="en-US" id="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl1">Restructured North American TEGSEDI Operations [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuredNorthAmericanTegsediOperationsMember" xlink:to="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl1" xlink:title="label: RestructuredNorthAmericanTegsediOperationsMember to ions_RestructuredNorthAmericanTegsediOperationsMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl2" xml:lang="en-US" id="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl2">Restructured North American TEGSEDI Operations [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuredNorthAmericanTegsediOperationsMember" xlink:to="ions_RestructuredNorthAmericanTegsediOperationsMember_lbl2" xlink:title="label: RestructuredNorthAmericanTegsediOperationsMember to ions_RestructuredNorthAmericanTegsediOperationsMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_SeveranceAndRetentionCostsTable" xlink:label="SeveranceAndRetentionCostsTable" xlink:title="SeveranceAndRetentionCostsTable" />
    <link:label xlink:type="resource" xlink:label="ions_SeveranceAndRetentionCostsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_SeveranceAndRetentionCostsTable_lbl" xml:lang="en-US" id="ions_SeveranceAndRetentionCostsTable_lbl">Disclosure of information about severance and retention costs.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeveranceAndRetentionCostsTable" xlink:to="ions_SeveranceAndRetentionCostsTable_lbl" xlink:title="label: SeveranceAndRetentionCostsTable to ions_SeveranceAndRetentionCostsTable_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_SeveranceAndRetentionCostsTable_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_SeveranceAndRetentionCostsTable_lbl1" xml:lang="en-US" id="ions_SeveranceAndRetentionCostsTable_lbl1">Severance and Retention Costs [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeveranceAndRetentionCostsTable" xlink:to="ions_SeveranceAndRetentionCostsTable_lbl1" xlink:title="label: SeveranceAndRetentionCostsTable to ions_SeveranceAndRetentionCostsTable_lbl1" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_SeveranceAndRetentionCostsLineItems" xlink:label="SeveranceAndRetentionCostsLineItems" xlink:title="SeveranceAndRetentionCostsLineItems" />
    <link:label xlink:type="resource" xlink:label="ions_SeveranceAndRetentionCostsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_SeveranceAndRetentionCostsLineItems_lbl" xml:lang="en-US" id="ions_SeveranceAndRetentionCostsLineItems_lbl">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeveranceAndRetentionCostsLineItems" xlink:to="ions_SeveranceAndRetentionCostsLineItems_lbl" xlink:title="label: SeveranceAndRetentionCostsLineItems to ions_SeveranceAndRetentionCostsLineItems_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_SeveranceAndRetentionCostsLineItems_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_SeveranceAndRetentionCostsLineItems_lbl1" xml:lang="en-US" id="ions_SeveranceAndRetentionCostsLineItems_lbl1">Severance and Retention Costs [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeveranceAndRetentionCostsLineItems" xlink:to="ions_SeveranceAndRetentionCostsLineItems_lbl1" xlink:title="label: SeveranceAndRetentionCostsLineItems to ions_SeveranceAndRetentionCostsLineItems_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_SeveranceAndRetentionCostsLineItems_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_SeveranceAndRetentionCostsLineItems_lbl2" xml:lang="en-US" id="ions_SeveranceAndRetentionCostsLineItems_lbl2">Severance and Retention Costs [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeveranceAndRetentionCostsLineItems" xlink:to="ions_SeveranceAndRetentionCostsLineItems_lbl2" xlink:title="label: SeveranceAndRetentionCostsLineItems to ions_SeveranceAndRetentionCostsLineItems_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_RestructuredEuropeanOperationsMember" xlink:label="RestructuredEuropeanOperationsMember" xlink:title="RestructuredEuropeanOperationsMember" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuredEuropeanOperationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_RestructuredEuropeanOperationsMember_lbl" xml:lang="en-US" id="ions_RestructuredEuropeanOperationsMember_lbl">Termination of employees and retention of key employees for a specific period of time associated with the restructuring of the Company's European operations.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuredEuropeanOperationsMember" xlink:to="ions_RestructuredEuropeanOperationsMember_lbl" xlink:title="label: RestructuredEuropeanOperationsMember to ions_RestructuredEuropeanOperationsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuredEuropeanOperationsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_RestructuredEuropeanOperationsMember_lbl1" xml:lang="en-US" id="ions_RestructuredEuropeanOperationsMember_lbl1">Restructured European Operations [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuredEuropeanOperationsMember" xlink:to="ions_RestructuredEuropeanOperationsMember_lbl1" xlink:title="label: RestructuredEuropeanOperationsMember to ions_RestructuredEuropeanOperationsMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuredEuropeanOperationsMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_RestructuredEuropeanOperationsMember_lbl2" xml:lang="en-US" id="ions_RestructuredEuropeanOperationsMember_lbl2">Restructured European Operations [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuredEuropeanOperationsMember" xlink:to="ions_RestructuredEuropeanOperationsMember_lbl2" xlink:title="label: RestructuredEuropeanOperationsMember to ions_RestructuredEuropeanOperationsMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_AkceaAcquisitionMember" xlink:label="AkceaAcquisitionMember" xlink:title="AkceaAcquisitionMember" />
    <link:label xlink:type="resource" xlink:label="ions_AkceaAcquisitionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_AkceaAcquisitionMember_lbl" xml:lang="en-US" id="ions_AkceaAcquisitionMember_lbl">Termination of employees and retention of key employees for a specific period of time associated with the Akcea Acquisition/Merger.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AkceaAcquisitionMember" xlink:to="ions_AkceaAcquisitionMember_lbl" xlink:title="label: AkceaAcquisitionMember to ions_AkceaAcquisitionMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_AkceaAcquisitionMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_AkceaAcquisitionMember_lbl1" xml:lang="en-US" id="ions_AkceaAcquisitionMember_lbl1">Akcea Acquisition [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AkceaAcquisitionMember" xlink:to="ions_AkceaAcquisitionMember_lbl1" xlink:title="label: AkceaAcquisitionMember to ions_AkceaAcquisitionMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_AkceaAcquisitionMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_AkceaAcquisitionMember_lbl2" xml:lang="en-US" id="ions_AkceaAcquisitionMember_lbl2">Akcea Merger [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AkceaAcquisitionMember" xlink:to="ions_AkceaAcquisitionMember_lbl2" xlink:title="label: AkceaAcquisitionMember to ions_AkceaAcquisitionMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments" xlink:label="RestructuringReserveRestructuringChargesNetOfReserveAdjustments" xlink:title="RestructuringReserveRestructuringChargesNetOfReserveAdjustments" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl" xml:lang="en-US" id="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl">Amount of expenses associated with exit or disposal activities pursuant to an authorized plan, net of adjustments to a previously accrued restructuring liability. Excludes expenses related to a discontinued operation or an asset retirement obligation.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringReserveRestructuringChargesNetOfReserveAdjustments" xlink:to="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl" xlink:title="label: RestructuringReserveRestructuringChargesNetOfReserveAdjustments to ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl1" xml:lang="en-US" id="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl1">Restructuring Reserve, Restructuring Charges, Net of Reserve Adjustments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringReserveRestructuringChargesNetOfReserveAdjustments" xlink:to="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl1" xlink:title="label: RestructuringReserveRestructuringChargesNetOfReserveAdjustments to ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl2" xml:lang="en-US" id="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl2">Net amount expensed during the period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RestructuringReserveRestructuringChargesNetOfReserveAdjustments" xlink:to="ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl2" xlink:title="label: RestructuringReserveRestructuringChargesNetOfReserveAdjustments to ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ConvertibleNotesDisclosureTable" xlink:label="ConvertibleNotesDisclosureTable" xlink:title="ConvertibleNotesDisclosureTable" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleNotesDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ConvertibleNotesDisclosureTable_lbl" xml:lang="en-US" id="ions_ConvertibleNotesDisclosureTable_lbl">Disclosure of information about income taxes.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleNotesDisclosureTable" xlink:to="ions_ConvertibleNotesDisclosureTable_lbl" xlink:title="label: ConvertibleNotesDisclosureTable to ions_ConvertibleNotesDisclosureTable_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleNotesDisclosureTable_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_ConvertibleNotesDisclosureTable_lbl1" xml:lang="en-US" id="ions_ConvertibleNotesDisclosureTable_lbl1">Convertible Notes Disclosure [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleNotesDisclosureTable" xlink:to="ions_ConvertibleNotesDisclosureTable_lbl1" xlink:title="label: ConvertibleNotesDisclosureTable to ions_ConvertibleNotesDisclosureTable_lbl1" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_ConvertibleNotesDisclosureLineItems" xlink:label="ConvertibleNotesDisclosureLineItems" xlink:title="ConvertibleNotesDisclosureLineItems" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleNotesDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_ConvertibleNotesDisclosureLineItems_lbl" xml:lang="en-US" id="ions_ConvertibleNotesDisclosureLineItems_lbl">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleNotesDisclosureLineItems" xlink:to="ions_ConvertibleNotesDisclosureLineItems_lbl" xlink:title="label: ConvertibleNotesDisclosureLineItems to ions_ConvertibleNotesDisclosureLineItems_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleNotesDisclosureLineItems_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_ConvertibleNotesDisclosureLineItems_lbl1" xml:lang="en-US" id="ions_ConvertibleNotesDisclosureLineItems_lbl1">Convertible Notes Disclosure [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleNotesDisclosureLineItems" xlink:to="ions_ConvertibleNotesDisclosureLineItems_lbl1" xlink:title="label: ConvertibleNotesDisclosureLineItems to ions_ConvertibleNotesDisclosureLineItems_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_ConvertibleNotesDisclosureLineItems_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_ConvertibleNotesDisclosureLineItems_lbl2" xml:lang="en-US" id="ions_ConvertibleNotesDisclosureLineItems_lbl2">Convertible Notes [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleNotesDisclosureLineItems" xlink:to="ions_ConvertibleNotesDisclosureLineItems_lbl2" xlink:title="label: ConvertibleNotesDisclosureLineItems to ions_ConvertibleNotesDisclosureLineItems_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" xlink:label="DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" xlink:title="DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl" xml:lang="en-US" id="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl">The percentage of the principal amount of the notes to be purchased, plus accrued and unpaid interest, upon the occurrence of certain fundamental changes, as set forth in the indenture governing the convertible notes.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" xlink:to="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl" xlink:title="label: DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange to ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl1" xml:lang="en-US" id="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl1">Debt Instrument, Convertible, Percentage of principal amount used as purchase price upon occurrence of fundamental change</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" xlink:to="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl1" xlink:title="label: DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange to ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl2" xml:lang="en-US" id="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl2">Percentage of principal amount used as purchase price upon occurrence of fundamental change</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange" xlink:to="ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl2" xlink:title="label: DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange to ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread" xlink:label="DebtInstrumentConvertibleConversionPriceIncludingCallSpread" xlink:title="DebtInstrumentConvertibleConversionPriceIncludingCallSpread" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl" xml:lang="en-US" id="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl">The computed conversion price per share of the debt instrument based on the the conversion feature embedded in the debt instrument and the impact of the purchased hedges in the call spread transaction.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleConversionPriceIncludingCallSpread" xlink:to="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl" xlink:title="label: DebtInstrumentConvertibleConversionPriceIncludingCallSpread to ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl1" xml:lang="en-US" id="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl1">Debt Instrument, Convertible, Conversion Price including call spread</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleConversionPriceIncludingCallSpread" xlink:to="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl1" xlink:title="label: DebtInstrumentConvertibleConversionPriceIncludingCallSpread to ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl2" xml:lang="en-US" id="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl2">Effective conversion price per share with call spread (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleConversionPriceIncludingCallSpread" xlink:to="ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl2" xlink:title="label: DebtInstrumentConvertibleConversionPriceIncludingCallSpread to ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_DebtInstrumentConvertibleSharesSubjectToConversion" xlink:label="DebtInstrumentConvertibleSharesSubjectToConversion" xlink:title="DebtInstrumentConvertibleSharesSubjectToConversion" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl" xml:lang="en-US" id="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl">The number of shares of common stock subject to conversion if the debt was converted to equity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleSharesSubjectToConversion" xlink:to="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl" xlink:title="label: DebtInstrumentConvertibleSharesSubjectToConversion to ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl1" xml:lang="en-US" id="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl1">Debt Instrument, Convertible, Shares Subject to Conversion</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleSharesSubjectToConversion" xlink:to="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl1" xlink:title="label: DebtInstrumentConvertibleSharesSubjectToConversion to ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl2" xml:lang="en-US" id="ions_DebtInstrumentConvertibleSharesSubjectToConversion_lbl2">Total shares of common stock subject to conversion (in shares)</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CallSpread" xlink:label="CallSpread" xlink:title="CallSpread" />
    <link:label xlink:type="resource" xlink:label="ions_CallSpread_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CallSpread_lbl" xml:lang="en-US" id="ions_CallSpread_lbl">The net cash outflow from payments for hedge transactions and proceeds from the issuance of warrants. The call spread transaction was entered into to minimize the impact of potential economic dilution upon conversion of the 0.125% notes issued.</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_CallSpread_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CallSpread_lbl1" xml:lang="en-US" id="ions_CallSpread_lbl1">Call Spread</link:label>
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    <link:label xlink:type="resource" xlink:label="ions_CallSpread_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CallSpread_lbl2" xml:lang="en-US" id="ions_CallSpread_lbl2">Cost of call spread</link:label>
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    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_InvestmentInEquitySecuritiesFvNi" xlink:label="InvestmentInEquitySecuritiesFvNi" xlink:title="InvestmentInEquitySecuritiesFvNi" />
    <link:label xlink:type="resource" xlink:label="ions_InvestmentInEquitySecuritiesFvNi_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_InvestmentInEquitySecuritiesFvNi_lbl" xml:lang="en-US" id="ions_InvestmentInEquitySecuritiesFvNi_lbl">Acquisition of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentInEquitySecuritiesFvNi" xlink:to="ions_InvestmentInEquitySecuritiesFvNi_lbl" xlink:title="label: InvestmentInEquitySecuritiesFvNi to ions_InvestmentInEquitySecuritiesFvNi_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_InvestmentInEquitySecuritiesFvNi_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_InvestmentInEquitySecuritiesFvNi_lbl1" xml:lang="en-US" id="ions_InvestmentInEquitySecuritiesFvNi_lbl1">Investment in Equity Securities, FV-NI</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentInEquitySecuritiesFvNi" xlink:to="ions_InvestmentInEquitySecuritiesFvNi_lbl1" xlink:title="label: InvestmentInEquitySecuritiesFvNi to ions_InvestmentInEquitySecuritiesFvNi_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_InvestmentInEquitySecuritiesFvNi_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_InvestmentInEquitySecuritiesFvNi_lbl2" xml:lang="en-US" id="ions_InvestmentInEquitySecuritiesFvNi_lbl2">Equity investment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentInEquitySecuritiesFvNi" xlink:to="ions_InvestmentInEquitySecuritiesFvNi_lbl2" xlink:title="label: InvestmentInEquitySecuritiesFvNi to ions_InvestmentInEquitySecuritiesFvNi_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_PaymentsMadeUnderCollaborationAgreement" xlink:label="PaymentsMadeUnderCollaborationAgreement" xlink:title="PaymentsMadeUnderCollaborationAgreement" />
    <link:label xlink:type="resource" xlink:label="ions_PaymentsMadeUnderCollaborationAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_PaymentsMadeUnderCollaborationAgreement_lbl" xml:lang="en-US" id="ions_PaymentsMadeUnderCollaborationAgreement_lbl">Represents the cash outflow for payments made under the collaboration agreement for the reimbursement of support received in connection with the Company's Huntington's disease program.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsMadeUnderCollaborationAgreement" xlink:to="ions_PaymentsMadeUnderCollaborationAgreement_lbl" xlink:title="label: PaymentsMadeUnderCollaborationAgreement to ions_PaymentsMadeUnderCollaborationAgreement_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_PaymentsMadeUnderCollaborationAgreement_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_PaymentsMadeUnderCollaborationAgreement_lbl1" xml:lang="en-US" id="ions_PaymentsMadeUnderCollaborationAgreement_lbl1">Payments made under collaboration agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsMadeUnderCollaborationAgreement" xlink:to="ions_PaymentsMadeUnderCollaborationAgreement_lbl1" xlink:title="label: PaymentsMadeUnderCollaborationAgreement to ions_PaymentsMadeUnderCollaborationAgreement_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_PaymentsMadeUnderCollaborationAgreement_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_PaymentsMadeUnderCollaborationAgreement_lbl2" xml:lang="en-US" id="ions_PaymentsMadeUnderCollaborationAgreement_lbl2">Payment of license fee</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsMadeUnderCollaborationAgreement" xlink:to="ions_PaymentsMadeUnderCollaborationAgreement_lbl2" xlink:title="label: PaymentsMadeUnderCollaborationAgreement to ions_PaymentsMadeUnderCollaborationAgreement_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_LockUpAgreementTermOfTradingRestriction" xlink:label="LockUpAgreementTermOfTradingRestriction" xlink:title="LockUpAgreementTermOfTradingRestriction" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LockUpAgreementTermOfTradingRestriction" xlink:to="ions_LockUpAgreementTermOfTradingRestriction_lbl1" xlink:title="label: LockUpAgreementTermOfTradingRestriction to ions_LockUpAgreementTermOfTradingRestriction_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_LockUpAgreementTermOfTradingRestriction_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_LockUpAgreementTermOfTradingRestriction_lbl2" xml:lang="en-US" id="ions_LockUpAgreementTermOfTradingRestriction_lbl2">Trading restriction period under lock up agreement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LockUpAgreementTermOfTradingRestriction" xlink:to="ions_LockUpAgreementTermOfTradingRestriction_lbl2" xlink:title="label: LockUpAgreementTermOfTradingRestriction to ions_LockUpAgreementTermOfTradingRestriction_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CumulativePaymentsMade" xlink:label="CumulativePaymentsMade" xlink:title="CumulativePaymentsMade" />
    <link:label xlink:type="resource" xlink:label="ions_CumulativePaymentsMade_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CumulativePaymentsMade_lbl" xml:lang="en-US" id="ions_CumulativePaymentsMade_lbl">Cumulative amount of payments made under the collaboration agreement as of the end of the reporting period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CumulativePaymentsMade" xlink:to="ions_CumulativePaymentsMade_lbl" xlink:title="label: CumulativePaymentsMade to ions_CumulativePaymentsMade_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CumulativePaymentsMade_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CumulativePaymentsMade_lbl1" xml:lang="en-US" id="ions_CumulativePaymentsMade_lbl1">Cumulative payments made</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CumulativePaymentsMade" xlink:to="ions_CumulativePaymentsMade_lbl1" xlink:title="label: CumulativePaymentsMade to ions_CumulativePaymentsMade_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CumulativePaymentsMade_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CumulativePaymentsMade_lbl2" xml:lang="en-US" id="ions_CumulativePaymentsMade_lbl2">Cumulative payments made</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CumulativePaymentsMade" xlink:to="ions_CumulativePaymentsMade_lbl2" xlink:title="label: CumulativePaymentsMade to ions_CumulativePaymentsMade_lbl2" />
    <link:loc xlink:type="locator" xlink:href="ions-20210930.xsd#ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" xlink:label="CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" xlink:title="CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl" xml:lang="en-US" id="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl">Represents information pertaining to the collaboration arrangement entered into with Bicycle Therapeutics in December 2020. The Company obtained an option to license its peptide technology to potentially increase the delivery capabilities of our Ligand Conjugated Antisense, or LICA, medicines.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" xlink:to="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl" xlink:title="label: CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember to ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl1" xml:lang="en-US" id="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl1">Collaboration Agreement Entered Into in December 2020 with Bicycle [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" xlink:to="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl1" xlink:title="label: CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember to ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl2" xml:lang="en-US" id="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl2">Bicycle License Agreement [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember" xlink:to="ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl2" xlink:title="label: CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember to ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember_lbl2" />
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</TEXT>
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<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>11
<FILENAME>ions-20210930_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
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&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;1.&#160; Basis of Presentation&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We prepared the unaudited interim condensed consolidated financial statements for the three and &lt;/span&gt;nine months ended&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;&#160;&lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and &lt;/span&gt;2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; on the same basis as the audited financial statements for the year ended &lt;/span&gt;December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, with the exception of our retrospective adoption of Accounting Standards Update, or ASU, 2020-06, which simplifies&lt;/span&gt; the accounting for convertible debt instruments&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;. See Note 2, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Significant Accounting Polices&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Convertible Debt, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;for details of our adoption of this guidance. We included all normal recurring adjustments in the financial statements, which we considered necessary for a fair presentation of our financial position at such dates and our operating results and cash flows for those periods. Our operating results for the interim periods may not be indicative of what our operating results will be for the entire year. For more complete financial information, these financial statements, and notes thereto, should be read in conjunction with the audited financial statements for the year ended &lt;/span&gt;December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission, or SEC.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In our condensed consolidated financial statements, we included the accounts of Ionis Pharmaceuticals, Inc. and the consolidated results of our wholly owned subsidiary, Akcea Therapeutics, Inc. and its wholly owned subsidiaries (&#x201c;we&#x201d;, &#x201c;us&#x201d; or &#x201c;our&#x201d;). We formed Akcea in December 2014. &lt;/span&gt;In July 2017, Akcea completed an &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;initial public offering, or IPO, which reduced our ownership of Akcea&#x2019;s common stock below &lt;/span&gt;100 percent&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;.&lt;/span&gt;&#160;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In October 2020, we completed a merger transaction with Akcea such that following the completion of the merger, Akcea became our wholly owned subsidiary. We will refer to this transaction as the Akcea Merger throughout the remainder of this document. &lt;/span&gt;We reflected changes in our ownership percentage in our financial statements as an adjustment to noncontrolling interest in the period the changes occurred.&lt;/div&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We prepared the unaudited interim condensed consolidated financial statements for the three and &lt;/span&gt;nine months ended&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;&#160;&lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and &lt;/span&gt;2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; on the same basis as the audited financial statements for the year ended &lt;/span&gt;December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, with the exception of our retrospective adoption of Accounting Standards Update, or ASU, 2020-06, which simplifies&lt;/span&gt; the accounting for convertible debt instruments&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;. See Note 2, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Significant Accounting Polices&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Convertible Debt, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;for details of our adoption of this guidance. We included all normal recurring adjustments in the financial statements, which we considered necessary for a fair presentation of our financial position at such dates and our operating results and cash flows for those periods. Our operating results for the interim periods may not be indicative of what our operating results will be for the entire year. For more complete financial information, these financial statements, and notes thereto, should be read in conjunction with the audited financial statements for the year ended &lt;/span&gt;December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission, or SEC.&lt;/span&gt;&lt;/div&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In our condensed consolidated financial statements, we included the accounts of Ionis Pharmaceuticals, Inc. and the consolidated results of our wholly owned subsidiary, Akcea Therapeutics, Inc. and its wholly owned subsidiaries (&#x201c;we&#x201d;, &#x201c;us&#x201d; or &#x201c;our&#x201d;). We formed Akcea in December 2014. &lt;/span&gt;In July 2017, Akcea completed an &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;initial public offering, or IPO, which reduced our ownership of Akcea&#x2019;s common stock below &lt;/span&gt;100 percent&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;.&lt;/span&gt;&#160;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In October 2020, we completed a merger transaction with Akcea such that following the completion of the merger, Akcea became our wholly owned subsidiary. We will refer to this transaction as the Akcea Merger throughout the remainder of this document. &lt;/span&gt;We reflected changes in our ownership percentage in our financial statements as an adjustment to noncontrolling interest in the period the changes occurred.&lt;/div&gt;
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&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2.&#160; Significant Accounting Policies&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Revenue Recognition&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Our Revenue Sources&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We generally recognize revenue when we have satisfied all contractual obligations and are reasonably assured of collecting the resulting receivable. We are often entitled to bill our customers and receive payment from our customers in advance of recognizing the revenue. In the instances in which we have received payment from our customers in advance of recognizing revenue, we include the amounts in deferred revenue on our condensed consolidated balance sheet.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We earn commercial revenue primarily in the form of royalty payments on net sales of SPINRAZA. We will also recognize as commercial revenue sales milestone payments and royalties we earn under our other partnerships.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In April 2021, we began commercializing TEGSEDI in North America through a distribution agreement with Swedish Orphan Biovitrum AB, or Sobi. In January 2021, we began commercializing TEGSEDI and WAYLIVRA in Europe through a distribution agreement with Sobi. Under our agreements, we are responsible for supplying finished goods inventory to Sobi and Sobi is responsible for selling each medicine to the end customer. As a result of these agreements, we earn a distribution fee on net sales from Sobi for each medicine.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Prior to the second quarter of 2021 in North America, we sold TEGSEDI through exclusive distribution agreements with third-party logistics companies, or 3PLs, that took title to TEGSEDI. The 3PLs then distributed TEGSEDI to a specialty pharmacy and a specialty distributor, which we collectively refer to as wholesalers, who then distributed TEGSEDI to health care providers and patients. In the United States, or U.S., we had a single 3PL as our sole customer and in Canada we also had a single 3PL as our sole customer. Prior to 2021 in Europe, we sold TEGSEDI and WAYLIVRA to hospitals and pharmacies, which were our customers, using 3PLs as distributors.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under our collaboration agreement with PTC Therapeutics International Limited, or PTC, PTC is responsible for commercializing TEGSEDI and WAYLIVRA in Latin America and Caribbean countries. In the third quarter of 2021, we earned a $4 million milestone payment from PTC when WAYLIVRA was approved in Brazil, which we included in TEGSEDI and WAYLIVRA revenue in our condensed consolidated statement of operations.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Research and development revenue under collaborative agreements&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We often enter into collaboration agreements to license and sell our technology on an exclusive or non-exclusive basis. Our collaboration agreements typically contain multiple elements, or performance obligations, including technology licenses or options to obtain technology licenses, research and development, or R&amp;amp;D, services, and manufacturing services.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;See &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Note 5, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Collaborative Arrangements and Licensing Agreements&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, for collaborations with substantive changes that occurred in 2021. Additionally, see &lt;/span&gt;Note 6, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Collaborative Arrangements and Licensing Agreements&lt;/span&gt;, in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for a summary of each of our material collaborative agreements.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Steps to Recognize Revenue&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We use a five-step process to determine the amount of revenue we should recognize and when we should recognize it. The five-step process is as follows:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zab71749e0e4f49e499c3c3967791b51a" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;1.&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Identify the contract&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accounting rules require us to first determine if we have a contract with our partner, including confirming that we have met each of the following criteria:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z024cc957654b4ca085cce3f3cc59d6e6" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We and our partner approved the contract and we are both committed to perform our obligations;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zb1963218390147ba9dca032413c3b7e9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We have identified our rights, our partner&#x2019;s rights and the payment terms;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z218eba371e8640008a30578a5182ed53" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We have concluded that the contract has commercial substance, meaning that the risk, timing, or amount of our future cash flows is expected to change as a result of the contract; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z5e5457e67b4946c9837b0f9ee3f99846" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We believe collectability of the consideration is probable.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z99f76379ac0943c59f09e766fd6d6bf1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;"&gt;2&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;"&gt;.&lt;/span&gt;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Identify the performance obligations&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We next identify our performance obligations, which represent the distinct goods and services we are required to provide under the contract. We typically have only one performance obligation at the inception of a contract, which is to perform R&amp;amp;D services.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Often we enter into a collaboration agreement in which we provide our partner with an option to license a medicine in the future. We may also provide our partner with an option to request that we provide additional goods or services in the future, such as active pharmaceutical ingredient, or API. We evaluate whether these options are material rights at the inception of the agreement. If we determine an option is a material right, we will consider the option a separate performance obligation. Historically, we have concluded that the options we grant to license a medicine in the future or to provide additional goods and services as requested by our partner are not material rights because these items are contingent upon future events that may not occur and are not priced at a significant discount. When a partner exercises its option to license a medicine or requests additional goods or services, then we identify a new performance obligation for that item.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In some cases, we deliver a license at the start of an agreement. If we determine that our partner has full use of the license and we do not have any additional material performance obligations related to the license after delivery, then we consider the license to be a separate performance obligation.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc2c19afad2c6419cb48f87aeae96e324" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;3.&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Determine the transaction price&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We then determine the transaction price by reviewing the amount of consideration we are eligible to earn under the collaboration agreement, including any variable consideration. Under our collaboration agreements, consideration typically includes fixed consideration in the form of an upfront payment and variable consideration in the form of potential milestone payments, license fees and royalties. At the start of an agreement, our transaction price usually consists of only the upfront payment. We do not typically include any payments we may receive in the future in our initial transaction price because the payments are not probable and are contingent on certain future events. We reassess the total transaction price at each reporting period to determine if we should include additional payments in the transaction price.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Milestone payments are our most common type of variable consideration. We recognize milestone payments using the most likely amount method because we will either receive the milestone payment or we will not, which makes the potential milestone payment a binary event. The most likely amount method requires us to determine the likelihood of earning the milestone payment. We include a milestone payment in the transaction price once it is probable we will achieve the milestone event. Most often, we do not consider our milestone payments probable until we or our partner achieve the milestone event because the majority of our milestone payments are contingent upon events that are not within our control and/or are usually based on scientific progress which is inherently uncertain. For example, in the third quarter of 2021, we earned a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We did not consider the milestone payment probable until Novartis achieved the milestone event because it was contingent on Novartis&#x2019; enrollment of patients and was not within our control. We recognized the milestone payment in full in the period the milestone event was achieved because we did not have any remaining performance obligations related to the milestone payment.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z0e5e2ea0afca436795d2299267aee8f8" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;4.&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Allocate the transaction price&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Next, we allocate the transaction price to each of our performance obligations. When we have to allocate the transaction price to more than one performance obligation, we make estimates of the relative stand-alone selling price of each performance obligation because we do not typically sell our goods or services on a stand-alone basis. We then allocate the transaction price to each performance obligation based on the relative stand-alone selling price. We do not reallocate the transaction price after the start of an agreement to reflect subsequent changes in stand-alone selling prices.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We may engage a third party, independent valuation specialist to assist us with determining a stand-alone selling price for collaborations in which we deliver a license at the start of an agreement. We estimate the stand-alone selling price of these licenses using valuation methodologies, such as the relief from royalty method. Under this method, we estimate the amount of income, net of taxes, for the license. We then discount the projected income to present value. The significant inputs we use to determine the projected income of a license could include:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zeaab9585dcbe4cc48becc78e545ec11f" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated future product sales;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z15a09b020bd148239ed6a817dd4da4f8" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated royalties we may receive from future product sales;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2523979e965643a4aad4d08b321a7edc" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated contractual milestone payments we may receive;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z988ecaf4d7c4486f8f7c68f198efed20" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated expenses we may incur;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z868e4b88873542dbabae8b099dc382eb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated income taxes; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="ze30d570be0294f4ab6d50666e0e415e5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;A discount rate.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We typically estimate the selling price of R&amp;amp;D services by using our internal estimates of the cost to perform the specific services. The significant inputs we use to determine the selling price of our R&amp;amp;D services include:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2dd3331d1d82404fa0412f07a28c5c79" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The estimated number of internal hours we will spend performing these services;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z029de365d800459bbc5513523f5a5a7d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The estimated cost of work we will perform;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zbcf18559edbc4c7bbdf049dcd3b5fc34" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The estimated cost of work that we will contract with third parties to perform; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z5b2392fee3034e6daa12c05d913dce05" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The estimated cost of API we will use.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For purposes of determining the stand-alone selling price of the R&amp;amp;D services we perform and the API we will deliver, accounting guidance requires us to include a markup for a reasonable profit margin.&lt;/div&gt;

&lt;div style="text-align: justify;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; &lt;/span&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zaa266e1aaa6648d482a9511662ff6ba5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;5.&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Recognize revenue&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize revenue in one of two ways, over time or at a point in time. We recognize revenue over time when we are executing on our performance obligation over time and our partner receives benefit over time. For example, we recognize revenue over time when we provide R&amp;amp;D services. We recognize revenue at a point in time when our partner receives full use of an item at a specific point in time. For example, we recognize revenue at a point in time when we deliver a license or API to a partner.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For R&amp;amp;D services that we recognize over time, we measure our progress using an input method. The input methods we use are based on the effort we expend or costs we incur toward the satisfaction of our performance obligation. We estimate the amount of effort we expend, including the time we estimate it will take us to complete the activities, or costs we incur in a given period, relative to the estimated total effort or costs to satisfy the performance obligation. This results in a percentage that we multiply by the transaction price to determine the amount of revenue we recognize each period. This approach requires us to make numerous estimates and use significant judgement. If our estimates or judgements change over the course of the collaboration, they may affect the timing and amount of revenue that we recognize in the current and future periods.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following are examples of when we typically recognize revenue based on the types of payments we receive.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize royalty revenue, including royalties from SPINRAZA sales, in the period in which the counterparty sells the related product and recognizes the related revenue, which in certain cases may require us to estimate our royalty revenue.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under our distribution agreements with Sobi we concluded that our performance obligation is to provide services to Sobi over the term of the agreement, which includes supplying finished goods inventory to Sobi and because we retained the marketing authorization for TEGSEDI and WAYLIVRA we are responsible for leading the global commercial strategy for each medicine. We view this performance obligation as a series of distinct activities that are substantially the same. Therefore, we recognize as revenue the price Sobi pays us for the inventory when we deliver the finished goods inventory to Sobi. We also recognize distribution fee revenue based on Sobi&#x2019;s net sales of TEGSEDI and WAYLIVRA. Under our agreements with Sobi, Sobi does not generally have a right of return.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Prior to our distribution agreements with Sobi, we recognized TEGSEDI and WAYLIVRA commercial revenue in the period when our customer obtained control of our products, which occurred at a point in time upon transfer of title to the customer. We classified payments to customers or other parties in the distribution channel for services that were distinct and priced at fair value as selling, general and administrative, or SG&amp;amp;A, expenses in our condensed consolidated statements of operations. We classified payments to customers or other parties in the distribution channel that did not meet those criteria as a reduction of revenue, as discussed further below. We excluded from revenues taxes collected from customers relating to TEGSEDI and WAYLIVRA commercial revenue and remitted these amounts to governmental authorities.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Reserves for TEGSEDI and WAYLIVRA commercial revenue&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under our distribution agreements with Sobi, Sobi is responsible for any applicable reserves.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Prior to our distribution agreements with Sobi, w&lt;/span&gt;e recorded TEGSEDI and WAYLIVRA commercial revenue at our net sales price, or transaction price. We included in our transaction price estimated reserves for discounts, returns, chargebacks, rebates and other allowances that we offered within contracts between us and our customers, wholesalers, distributors, health care providers and other indirect customers. We estimated our reserves using the amounts we have earned or we could claim on the associated sales. We classified our reserves as a reduction of accounts receivable when we were not required to make a payment or as a current liability when we were required to make a payment. In certain cases, our estimates included a range of possible outcomes that were probability weighted for relevant factors such as our historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, our reserves reflected our best estimates under the terms of our respective contracts. When calculating our reserves and related TEGSEDI and WAYLIVRA commercial revenue, we only recognized amounts to the extent that we considered it probable that we would not have to reverse a significant amount of the cumulative sales we previously recognized in a future period. Under our agreements with Sobi, we transferred all reserves to Sobi. See our revenue recognition policy in Note 1, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Organization and Significant Accounting Policies&lt;/span&gt;, of our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for additional details regarding how we accounted for the reserves related to TEDSEDI and WAYLIVIRA product sales prior to our agreements with Sobi.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Research and development revenue under collaboration agreements:&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Upfront payments&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;When we enter into a collaboration agreement and receive an upfront payment, we typically record the entire upfront payment as deferred revenue if our only performance obligation is for R&amp;amp;D services we will provide in the future. We amortize the upfront payment into revenue as we perform the R&amp;amp;D services. For example, under our collaboration agreement with Roche to develop IONIS-FB-L&lt;sub&gt;Rx&lt;/sub&gt; for the treatment of complement-mediated diseases, we received a $75 million upfront payment in the fourth quarter of 2018. We allocated the upfront payment to our single performance obligation, R&amp;amp;D services. We are amortizing the $75 million upfront payment using an input method over the estimated period of time we are providing R&amp;amp;D services.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Milestone payments&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We are required to include additional consideration in the transaction price when it is probable. We typically include milestone payments for R&amp;amp;D services in the transaction price when they are achieved. We include these milestone payments when they are achieved because typically there is considerable uncertainty in the research and development processes that trigger these payments. Similarly, we include approval milestone payments in the transaction price once the medicine is approved by the applicable regulatory agency. We will recognize sales-based milestone payments in the period in which we achieve the milestone under the sales-based royalty exception allowed under accounting rules.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize milestone payments that relate to an ongoing performance obligation over our period of performance. For example, in the fourth quarter of 2020, we achieved a $7.5 million milestone payment from Biogen when we advanced a target under our 2018 strategic collaboration. We added this payment to the transaction price and allocated it to our R&amp;amp;D services performance obligation. We are recognizing revenue related to this milestone payment over our estimated period of performance.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Conversely, we recognize in full those milestone payments that we earn based on our partners&#x2019; activities when our partner achieves the milestone event and we do not have a performance obligation. For example, in the third quarter of 2021, we recognized a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We recognized the milestone payment in full in the third quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;License fees&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We generally recognize as revenue the total amount we determine to be the relative stand-alone selling price of a license when we deliver the license to our partner. This is because our partner has full use of the license and we do not have any additional performance obligations related to the license after delivery. For example, in the fourth quarter of 2020, we earned a $30 million license fee from AstraZeneca when AstraZeneca licensed ION455, an investigational medicine in development to treat nonalcoholic steatohepatitis, or NASH.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Sublicense fees&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize sublicense fee revenue in the period in which a party, who has already licensed our technology, further licenses the technology to another party because we do not have any performance obligations related to the sublicense.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Amendments to Agreements&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;From time to time we amend our collaboration agreements. When this occurs, we are required to assess the following items to determine the accounting for the amendment:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z9c306ffd794f472ca5b606c438bf5a4b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;If the additional goods and/or services are distinct from the other performance obligations in the original agreement; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2e299ba86071471289d0de0c0f75ad1b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;If the goods and/or services are sold at a stand-alone selling price.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;If we conclude the goods and/or services in the amendment are distinct from the performance obligations in the original agreement and at a stand-alone selling price, we account for the amendment as a separate agreement. If we conclude the goods and/or services are not distinct and are sold at a stand-alone selling price, we then assess whether the remaining goods or services are distinct from those already provided. If the goods and/or services are distinct from what we have already provided, then we allocate the remaining transaction price from the original agreement and the additional transaction price from the amendment to the remaining goods and/or services. If the goods and/or services are not distinct from what we have already provided, we update the transaction price for our single performance obligation and recognize any change in our estimated revenue as a cumulative adjustment.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For example, in May 2015, we entered into an exclusive license agreement with Bayer to develop and commercialize IONIS-FXI&lt;sub&gt;Rx&lt;/sub&gt; for the prevention of thrombosis. As part of the agreement, Bayer paid us a&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; $&lt;/span&gt;100&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million upfront payment. At the onset of the agreement, we were responsible for completing a Phase 2 study of IONIS-FXI&lt;/span&gt;&lt;sub&gt;Rx&lt;/sub&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; in people with end-stage renal disease on hemodialysis and for providing an initial supply of API. In February 2017, we amended our agreement with Bayer to advance IONIS-FXI&lt;/span&gt;&lt;sub&gt;Rx&lt;/sub&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and to initiate development of fesomersen (IONIS-FXI-L&lt;/span&gt;&lt;sub&gt;Rx&lt;/sub&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;), which Bayer licensed. As part of the 2017 amendment, Bayer paid us $&lt;/span&gt;75&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million. We are also eligible to receive milestone payments and tiered royalties on gross margins of IONIS-FXI&lt;/span&gt;&lt;sub&gt;Rx&lt;/sub&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and fesomersen. Under the 2017 amendment, we concluded we had a new agreement with &lt;/span&gt;three&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; performance obligations. These performance obligations were to deliver the license of fesomersen, to provide R&amp;amp;D services and to deliver API. We allocated the $&lt;/span&gt;75&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million transaction price to these performance obligations. Refer to Note 6, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Collaborative Arrangements and Licensing Agreements&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, &lt;/span&gt;in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020&#160;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;for further discussion of the Bayer collaboration.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Multiple agreements&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;From time to time, we may enter into separate agreements at or near the same time with the same partner. We evaluate such agreements to determine whether we should account for them individually as distinct arrangements or whether the separate agreements should be combined and accounted for together. We evaluate the following to determine the accounting for the agreements:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7d49b45a2eb04336b4419366ac3857bd" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Whether the agreements were negotiated together with a single objective;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc42f620f66da4691b1d07dc612437121" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Whether the amount of consideration in one contract depends on the price or performance of the other agreement; or&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7420d29e9e9741799400cb97bac13094" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Whether the goods and/or services promised under the agreements are a single performance obligation.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our evaluation involves significant judgment to determine whether a group of agreements might be so closely related that accounting guidance requires us to account for them as a combined arrangement.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For example, in the second quarter of 2018, we entered into two separate agreements with Biogen at the same time: a new strategic neurology collaboration agreement and a stock purchase agreement, or SPA. &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We evaluated the Biogen agreements to determine whether we should treat the agreements separately or combine them. We considered that the agreements were negotiated concurrently and in contemplation of one another. Based on these facts and circumstances, we concluded that we should evaluate the provisions of the agreements on a combined basis. &lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Contracts Receivable&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Our contracts receivable balance represents the amounts we have billed our partners or customers and that are due to us unconditionally for goods we have delivered or services we have performed. When we bill our partners or customers with payment terms based on the passage of time, we consider the contracts receivable to be unconditional. We typically receive payment within &lt;/span&gt;&lt;span style="-sec-ix-hidden:Fact_cb46feec840d4d05b86df2a2af3b44c3"&gt;one quarter&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; of billing our partner or customer&lt;/span&gt;.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As of September 30, 2021, approximately 58.3 percent of our contracts receivables were from three significant customers. As of December 31, 2020, approximately 99.5 percent of our contracts receivables were from two significant customers.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Unbilled SPINRAZA Royalties&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our unbilled SPINRAZA royalties represent our right to receive consideration from Biogen in advance of when we are eligible to bill Biogen for SPINRAZA royalties. We include these unbilled amounts in other current assets on our condensed consolidated balance sheet.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Deferred Revenue&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We are often entitled to bill our customers and receive payment from our customers in advance of our obligation to provide services or transfer goods to our partners. In these instances, we include the amounts in deferred revenue on our condensed consolidated balance sheet.&lt;/span&gt; During the three months ended&#160;September 30, 2021 and 2020, we recognized $21.1 million and $22.5 million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;During the &lt;/span&gt;nine months ended&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;&#160;&lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and &lt;/span&gt;2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, we recognized $&lt;/span&gt;71.9&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million and $&lt;/span&gt;84.1&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. &lt;/span&gt;For further discussion, refer to our revenue recognition policy above.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Cost of Sales&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our cost of sales includes manufacturing costs, transportation and freight costs and indirect overhead costs associated with the manufacturing and distribution of our products. We also may include certain period costs related to manufacturing services and inventory adjustments in cost of sales. &lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Cash, Cash Equivalents and Investments&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We consider all liquid investments with maturities of three months or less when we purchase them to be cash equivalents. Our short-term investments have initial maturities of greater than three months from date of purchase. We classify our short-term debt investments as &#x201c;available-for-sale&#x201d; and carry them at fair market value based upon prices on the last day of the fiscal period for identical or similar items. We record unrealized gains and losses on debt securities as a separate component of comprehensive income (loss) and include net realized gains and losses in gain (loss) on investments in our condensed consolidated statement of operations. We use the specific identification method to determine the cost of securities sold.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We also have equity investments of less than 20 percent ownership in publicly and privately held biotechnology companies that we received as part of a technology license or partner agreement. At September 30, 2021, we held equity investments in three publicly held companies, Antisense Therapeutics Limited, or ATL, Bicycle Therapeutics plc, or Bicycle, and ProQR Therapeutics N.V., or ProQR. We also held equity investments in seven privately held companies, Aro Biotherapeutics, Atlantic Pharmaceuticals Limited, Dynacure SAS, Empirico, Inc., Flamingo Therapeutics BV, YourBio Health, Inc. (formerly Seventh Sense Biosystems) and Suzhou-Ribo Life Science Co, Ltd.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We are required to measure and record our equity investments at fair value and to recognize the changes in fair value in our condensed consolidated statement of operations. We account for our equity investments in privately held companies at their cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. For example, during the second and fourth quarters of 2020, we revalued our investments in three privately held companies, Dynacure, Suzhou-Ribo and Aro Biotherapeutics because the companies sold additional equity securities that were similar to the equity we own. These observable price changes resulted in us recognizing a $6.3 million gain on our investment in Dynacure, a $3.0 million gain on our investment in Suzhou-Ribo and a $5.5 million gain on our investment in Aro Biotherapeutics in our condensed consolidated statement of operations during 2020 because the sales were at higher prices compared to our recorded value.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Inventory Valuation&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We reflect our inventory on our condensed consolidated balance sheet at the lower of cost or net realizable value under the first-in, first-out method, or FIFO. We capitalize the costs of raw materials that we purchase for use in producing our medicines because until we use these raw materials, they have alternative future uses, which we refer to as clinical raw materials. We include in inventory raw material costs for medicines that we manufacture for our partners under contractual terms and that we use primarily in our clinical development activities and drug products. We can use each of our raw materials in multiple products and, as a result, each raw material has future economic value independent of the development status of any single medicine. For example, if one of our medicines failed, we could use the raw materials for that medicine to manufacture our other medicines. We expense these costs as R&amp;amp;D expenses when we begin to manufacture API for a particular medicine if the medicine has not been approved for marketing by a regulatory agency. Our raw materials- commercial inventory includes API for our commercial medicines. We capitalize material, labor and overhead costs as part of our raw materials- commercial inventory.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We obtained the first regulatory approval for TEGSEDI in July 2018 and for WAYLIVRA in May 2019. At September 30, 2021, our physical inventory for TEGSEDI and WAYLIVRA included API that we produced prior to when we obtained regulatory approval. As such, this API has no cost basis as we had previously expensed the costs as R&amp;amp;D expenses.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We review our inventory periodically and reduce the carrying value of items we consider to be slow moving or obsolete to their estimated net realizable value based on forecasted demand compared to quantities on hand. We consider several factors in estimating the net realizable value, including shelf life of our inventory, alternative uses for our medicines in development and historical write-offs. For the nine months ended&#160;September 30, 2021 and 2020, we recorded an immaterial amount of inventory write-offs.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our inventory consisted of the following (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2797308125a14c86aa5621d5f05e5205" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials:&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 19.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials- clinical&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,993&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,206&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -18pt; margin-left: 28.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials- commercial&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,147&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7,502&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total raw materials&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16,140&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16,708&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Work in process&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,183&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,252&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Finished goods&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;607&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;3,005&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: justify; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total inventory&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;22,930&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,965&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Leases&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We determine if an arrangement contains a lease at inception. We currently only have operating leases. We recognize a right-of-use operating lease asset and associated short- and long-term operating lease liability on our condensed consolidated balance sheet for operating leases greater than one year. Our right-of-use assets represent our right to use an underlying asset for the lease term and our lease liabilities represent our obligation to make lease payments arising from the lease arrangement. We recognize our right-of-use operating lease assets and lease liabilities based on the present value of the future minimum lease payments we will pay over the lease term. We determine the lease term at the inception of each lease, and in certain cases our lease term could include renewal options if we concluded we were reasonably certain that we will exercise the renewal option. When we exercise a lease option that was not previously included in the initial lease term, we reassess our right-of-use asset and lease liabilities for the new lease term.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As our current leases do not provide an interest rate implicit in the lease, we used our incremental borrowing rate, based on the information available on the date we adopted Topic 842 (January 2019), as of the lease inception date or at the lease option extension date in determining the present value of future payments. We recognize rent expense for our minimum lease payments on a straight-line basis over the expected term of our lease. We recognize period expenses, such as common area maintenance expenses, in the period we incur the expense.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In September 2021, we entered into an operating lease agreement for office space located in Boston, Massachusetts. We determined that the lease commencement date is the date in which the space is ready for our occupancy, which we expect will be in the fourth quarter of 2021. &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We are leasing this space under a non-cancelable operating lease with an initial term ending &lt;/span&gt;91&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; months following the lease commencement date and an option to extend the lease for an additional &lt;/span&gt;five-year&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; term. Under the lease agreement, we will receive a &lt;/span&gt;seven-month&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; free rent period, which will commence on the lease commencement date. Our lease payments over the initial term total $&lt;/span&gt;6.8&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million. We will recognize a right-of-use lease asset and lease liability in the fourth quarter of 2021 upon the lease commencement date. Since we did not have the right to occupy the premises as of September 30, 2021, there was no accounting impact in the third quarter.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="text-align: justify; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Research, Development and Patent Expenses&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our research and development expenses include wages, benefits, facilities, supplies, external services, clinical trial and manufacturing costs and other expenses that are directly related to our research and development operations. We expense research and development costs as we incur them. When we make payments for research and development services prior to the services being rendered, we record those amounts as prepaid assets on our condensed consolidated balance sheet and we expense them as the services are provided.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We capitalize costs consisting principally of outside legal costs and filing fees related to obtaining patents. We amortize patent costs over the useful life of the patent, beginning with the date the U.S. Patent and Trademark Office, or foreign equivalent, issues the patent. &lt;/span&gt;We review our capitalized patent costs regularly to ensure that they include costs for patents and patent applications that have future value. When we identify patents and patent applications that we are not actively pursuing, we write off any associated costs&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Income Taxes&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We account for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In addition, deferred tax assets are recorded for the future benefit of utilizing net operating losses and research and development credit carryforwards. We record a valuation allowance when necessary to reduce our net deferred tax assets to the amount we expect to realize.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We evaluate our deferred tax assets regularly to determine whether adjustments to the valuation allowance are appropriate due to changes in facts or circumstances, such as changes in expected future pre-tax earnings, tax law, interactions with taxing authorities and developments in case law. In making this evaluation, we rely on our recent history of pre-tax earnings. Our material assumptions are our forecasts of future pre-tax earnings and the nature and timing of future deductions and income represented by the deferred tax assets and liabilities, all of which involve the exercise of significant judgment.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We assessed our valuation allowance requirements and recorded a valuation allowance against all of Ionis&#x2019; U.S. federal net deferred tax assets in the fourth quarter of 2020, due to uncertainties related to our ability to realize the tax benefits associated with these assets. We based our determination largely on Akcea rejoining the Ionis U.S. consolidated federal tax group in the fourth quarter of 2020. Due to Akcea&#x2019;s historical and projected financial statement losses, and the negative impact we expect this to have on Ionis&#x2019; consolidated taxable income, there is uncertainty of generating sufficient consolidated pre-tax income in future periods to realize the Ionis deferred tax benefits. We also expect that Ionis&#x2019; pre-tax income in future periods may be lower due to increased research and development expenses associated with our pipeline of wholly owned medicines. We continue to maintain a valuation allowance against all our consolidated U.S. federal and state net deferred tax assets.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Long-lived Assets&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We evaluate long-lived assets, which include property, plant and equipment and patent costs, for impairment on at least a quarterly basis and whenever events or changes in circumstances indicate that we may not be able to recover the carrying amount of such assets.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Use of Estimates&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We prepare our condensed consolidated financial statements in conformity with accounting principles generally accepted in the &lt;/span&gt;U.S. that require us to make estimates and assumptions that affect the amounts reported in our condensed consolidated financial statements and accompanying notes. Actual results could differ from our estimates.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Basic and Diluted Net Loss Per Share&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Basic net loss per share&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We calculated our basic net loss per share for the three and nine months ended&#160;September 30, 2021 by dividing our net loss by our weighted-average number of common shares outstanding during the period. For the first nine months of 2021, we did not have to consider Akcea results separately in our calculation because we owned 100 percent of Akcea for the entire period. Our basic net loss per share for the three and nine months ended September 30, 2021 was $0.58 and $1.80, respectively.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In the third quarter of 2020, prior to the Akcea Merger, we calculated our basic net loss per share for the three and nine months ended&#160;September 30, 2020 by calculating our net loss for Ionis on a stand-alone basis plus our share of Akcea&#x2019;s net loss for the period to determine our total net loss attributable to our common stockholders. To calculate the portion of Akcea&#x2019;s net loss attributable to our ownership, we multiplied Akcea&#x2019;s net loss per share by the weighted average shares we owned in Akcea during the period. As a result of this calculation, our total net loss available to Ionis common stockholders for the calculation of net loss per share is different than our net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders in the condensed consolidated statements of operations.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We calculated our basic net loss per share for the three months ended September 30, 2020 as follows (in thousands, except per share amounts):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z6e0bd4e1d49640db8eda4dfa200753da" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three months ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Average Shares&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Owned in Akcea&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Akcea&#x2019;s&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Per Share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Basic&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss Per&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Share Calculation&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(as revised*)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; portion of Akcea&#x2019;s net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;77,095&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.49&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(37,822&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Akcea&#x2019;s net loss attributable to our ownership&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(37,822&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; stand-alone net income&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13,251&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss available to Ionis common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(24,571&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Weighted average shares outstanding&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;139,708&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.18&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We calculated our basic net loss per share for the nine months ended&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;&#160;&lt;/span&gt;September 30, 2020 as follows (in thousands, except per share amounts):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z829b7fd73abe4d0c8c02eb55723b4acb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine months ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Average Shares&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Owned in Akcea&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Akcea&#x2019;s&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Per Share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Basic&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss Per&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Share Calculation&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(as revised*)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; portion of Akcea&#x2019;s net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;77,095&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1.40&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(108,176&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Akcea&#x2019;s net loss attributable to our ownership&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(108,176&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; stand-alone net income&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;18,235&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss available to Ionis common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(89,941&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Weighted average shares outstanding&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;139,497&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.64&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z729f964a8a84426883f8b1deee9b51f1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;*&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Significant Accounting Policies&lt;/span&gt;, for further information.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Diluted net loss per share&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For the three and nine months ended&#160;September 30, 2021 and 2020, we incurred a net loss; therefore, we did not include dilutive common equivalent shares in the computation of diluted net loss per share because the effect would have been anti-dilutive. Common stock from the following would have had an anti-dilutive effect on net loss per share:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z43d84bc7ea3844d0ab074f4aa14288ed" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.125 percent convertible senior notes, or 0.125% Notes;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc1d1cebf8f2943f58e6a0bab1688a49b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Note hedges related to the 0.125% Notes;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z59e22ca8a35544a79ebbedf7c6346417" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1 percent convertible senior notes, or 1% Notes;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z539f9c2b28eb4676a4b27d0fbf14f0cb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dilutive stock options;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7a3ed3c754f540b493056e2df93ae913" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unvested restricted stock units, or RSUs;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z275182c1f5ad46399f780e650f2fef54" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unvested performance restricted stock units, or PRSUs; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z60f2bd6315a04ca196589bd19dee4ef2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Employee Stock Purchase Plan, or ESPP.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For the three and nine months ended&#160;September 30, 2021, common stock from the following would also have had an anti-dilutive effect on net loss per share:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z250741ef32e94c51a4bb935fd455314d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0 percent convertible senior notes, or 0% Notes; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z9eb4d5480810437bad6ba3b4e0c58082" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Note hedges related to the 0% Notes.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additionally as of September 30, 2021, we had warrants related to our 0% and 0.125% Notes outstanding. We will include the shares issuable under these warrants in our calculation of diluted earnings per share when the average market price per share of our common stock for the reporting period exceeds the strike price of the warrants.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Convertible Debt&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Adoption of ASU 2020-06&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In August 2020, the FASB issued ASU 2020-06, which simplifies&lt;/span&gt; the accounting for convertible debt instruments&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, amends the guidance on derivative scope exceptions for contracts in an entity&#x2019;s own equity, and modifies the guidance on diluted earnings per share calculations. We adopted ASU 2020-06 on January 1, 2021 under the full retrospective approach, which required us to revise our prior period financial statements. This guidance impacted our accounting for outstanding convertible debt. At January 1, 2021, we had &lt;/span&gt;two&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; outstanding convertible notes, our &lt;/span&gt;0.125%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes, which mature in December 2024, and our &lt;/span&gt;1%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes, which mature in November 2021. In April 2021, we completed a $&lt;/span&gt;632.5&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million offering of &lt;/span&gt;0%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes primarily to repurchase a majority of our &lt;/span&gt;1%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes. We accounted for our &lt;/span&gt;0%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes under ASU 2020-06 at issuance. Refer to Note 6, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Convertible Debt&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, for further information.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The updated guidance eliminates the cash conversion accounting model we previously followed in Accounting Standard Codification, or ASC, 470-20, which required us to separate each of our convertible debt instruments at issuance into two units of accounting, a liability component, based on our nonconvertible debt borrowing rate at issuance, and an equity component. Under ASU 2020-06, we now account for each of our convertible debt instruments as a single unit of accounting, a liability, because we concluded that the conversion features do not require bifurcation as a derivative under ASC 815-15 and our convertible debt instruments were not issued at a substantial premium. Since we adopted ASU 2020-06 using the full retrospective approach, we were required to apply the guidance to all convertible debt instruments we had outstanding as of January 1, 2019. We recomputed the basis of each convertible debt instrument as if we accounted for each as a single unit of accounting at issuance. This update included recalculating the amortization of debt issuance costs using an updated effective interest rate. As a result of adopting ASU 2020-06, we recorded a cumulative adjustment to decrease our additional paid in capital and our accumulated deficit at January 1, 2019. We have updated these financial statements to reflect the cumulative adjustment for the periods presented. We have labeled our prior period financial statements &#x201c;as revised&#x201d; to indicate the change required under the new accounting guidance. Below is a summary of the change in our balance sheet at December 31, 2020 and statement of operations from the three and nine months ended&#160;September 30, 2020 under the ASC 470-20 legacy guidance compared to the new ASU 2020-06 guidance we adopted:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the adjustments we made to the condensed consolidated balance sheet we originally reported at December 31, 2020 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z61ca4ada3097492594c0401d2ef05dfb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1 percent convertible senior notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;293,161&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,648&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;308,809&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.125 percent convertible senior notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;455,719&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;84,417&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;540,136&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,113,646&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,127&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,895,519&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,249,368&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;118,062&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,131,306&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under ASU 2020-06, our revised ending balances for our 1% Notes and 0.125% Notes as of December 31, 2020 represent the principal balance of each convertible debt instrument less debt issuance costs. Additionally, because we have deferred tax assets related to our convertible debt instruments, we also adjusted these amounts as part of our adoption of ASU 2020-06. However, because we have a full valuation allowance on our deferred tax assets, there was no impact to our condensed consolidated balance sheet related to our deferred tax assets.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following tables summarize the adjustments we made to the condensed consolidated statement of operations we originally reported for the three and nine months ended&#160;September 30, 2020 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zcc869176fe1c47c983c609f000d19db2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(11,321&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8,893&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,428&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Loss before income tax expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(40,443&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8,893&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(31,550&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Income tax expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,648&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,416&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(5,064&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(43,091&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,477&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(36,614&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(30,944&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,477&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(24,467&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic and diluted net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.22&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.04&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.18&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2f5855359501402b9fbfba586eb0b9b9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(33,484&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,408&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(7,076&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Loss before income tax benefit (expense)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(146,387&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,408&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(119,979&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Income tax benefit (expense)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,047&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(5,124&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(4,077&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(145,340&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,284&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(124,056&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(111,015&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,284&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(89,731&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic and diluted net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.80&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.16&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.64&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under ASU 2020-06, our revised interest expense is lower because we are no longer recording non-cash interest expense related to a debt discount. This decrease was partially offset by the increase in interest expense related to the amortization of debt issuance costs because we no longer allocate a portion of our debt issuance costs to stockholders&#x2019; equity at issuance. Instead, the entire debt issuance costs were recorded as a contra-liability on our condensed consolidated balance sheet at issuance and we are amortizing them over the contractual term using an updated effective interest rate. Our updated effective interest rates for our 1% Notes and 0.125% Notes were 1.4 percent and 0.5 percent, respectively.&lt;/div&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following tables summarize the adjustments we made to our condensed consolidated statements of stockholders&#x2019; equity we originally reported at December 31, 2020 and 2019 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z5aeb3ee1a3364575838aa3c32258a09d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,113,646&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,127&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,895,519&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,249,368&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;118,062&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,131,306&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total stockholders&#x2019; equity&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;843,347&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(100,065&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;743,282&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zcfa210d3757e446eba979459832059ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2019&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,203,778&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,128&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,985,650&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(707,534&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;111,039&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(596,495&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total stockholders&#x2019; equity&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,684,547&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(107,089&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,577,458&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Call Spread&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In conjunction with the issuance of our 0% Notes and 0.125% Notes in April 2021 and December 2019, respectively, we entered into call spread transactions, which were comprised of purchasing note hedges and selling warrants. We account for the note hedges and warrants as separate freestanding financial instruments and treat each instrument as a separate unit of accounting. We determined that the note hedges and warrants do not meet the definition of a liability using the guidance contained in ASC Topic 480, therefore we account for the note hedges and warrants using the Derivatives and Hedging &#x2013; Contracts in Entity&#x2019;s Own Equity accounting guidance contained in ASC Topic 815. We determined that the note hedges and warrants meet the definition of a derivative, are indexed to our stock and meet the criteria to be classified in shareholders&#x2019; equity. We recorded the aggregate amount paid for the note hedges and the aggregate amount received for the warrants as additional paid-in capital in our condensed consolidated balance sheet. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#x2019; equity at each reporting period.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Segment Information&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In 2021, we began operating as a single segment, Ionis operations, because our chief decision maker reviews operating results on an aggregate basis and manages our operations as a single operating segment. Previously, we had operated as two operating segments, Ionis Core and Akcea Therapeutics. We completed the Akcea Merger in October 2020 and fully integrated Akcea&#x2019;s operations into ours as of January 1, 2021.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Stock-based Compensation Expense&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We measure stock-based compensation expense for equity-classified awards, principally related to stock options, RSUs, PRSUs and stock purchase rights under our ESPP based on the estimated fair value of the award on the date of grant. We recognize the value of the portion of the award that we ultimately expect to vest as stock-based compensation expense over the requisite service period in our condensed consolidated statements of operations. We reduce stock-based compensation expense for estimated forfeitures at the time of grant and revise in subsequent periods if actual forfeitures differ from those estimates. We use the Black-Scholes model to estimate the fair value of stock options granted and stock purchase rights under our ESPP.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;On the grant date, we use our stock price and assumptions regarding a number of variables to determine the estimated fair value of stock-based payment awards. These variables include, but are not limited to, our expected stock price volatility over the term of the awards, and actual and projected employee stock option exercise behaviors.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize compensation expense for stock options granted, RSUs, PRSUs and stock purchase rights under the ESPP using the accelerated multiple-option approach. Under the accelerated multiple-option approach (also known as the graded-vesting method), we recognize compensation expense over the requisite service period for each separately vesting tranche of the award as though the award were in substance multiple awards, which results in the expense being front-loaded over the vesting period.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In December 2020, we amended and restated the Akcea 2015 equity plan, including renaming the plan as the Ionis Pharmaceuticals, Inc. 2020 Equity Incentive Plan, or 2020 Plan. As a result, all employees are now under an Ionis stock plan and subject to the same Black-Scholes assumptions.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For the nine months ended&#160;September 30, 2021 and 2020, we used the following weighted-average assumptions in our Black-Scholes calculations:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Employee Stock Options:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z765fe70c9b264d2b97702ae8f890e897" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Risk-free interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dividend yield&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Volatility&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;54.3&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;58.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expected life&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4.9 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4.7 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Ionis Board of Director Stock Options:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2ab3e6b5b99349ab8dafa3e9b4ad99ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Risk-free interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dividend yield&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Volatility&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;55.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;57.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expected life&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7.3 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6.7 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;ESPP:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z4775cbab309e4daebc6523679daa2ac5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Risk-free interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dividend yield&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Volatility&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;42.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;47.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expected life&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6 months&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6 months&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;RSU&#x2019;s:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The fair value of RSUs is based on the market price of our common stock on the date of grant. The RSUs we have granted to employees vest annually over a four-year period. The RSUs we granted to our board of directors prior to June 2020 vest annually over a four-year period. RSUs granted after June 2020 to our board of directors fully vest after one year. The weighted-average grant date fair value of RSUs granted to employees and our board of directors for the nine months ended&#160;September 30, 2021 was $59.15 and $39.42 per share, respectively.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;PRSU&#x2019;s:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Beginning in 2020, we added PRSU awards to the compensation for our Chief Executive Officer, Dr. Brett Monia. Under the terms of the grants, &lt;span style="-sec-ix-hidden:Fact_3ea144f70898401099a1731ad0c7e39f"&gt;&lt;span style="-sec-ix-hidden:Fact_b531c97d5a394e3f8a5454ecd82ddb93"&gt;&lt;span style="-sec-ix-hidden:Fact_b2b6dbe875764e78b9cce0b8464216dd"&gt;one third&lt;/span&gt;&lt;/span&gt;&lt;/span&gt; of the PRSUs may vest at the end of three separate performance periods spread over the three years following the date of grant (i.e., the one-year period commencing on the date of grant and ending on the first anniversary of the date of grant; the two-year period commencing on the date of grant and ending on the second anniversary of the date of grant; and the three-year period commencing on the date of grant and ending on the third anniversary of the date of grant) based on our relative total shareholder return, or TSR, as compared to a peer group of companies, and as measured, in each case, at the end of the applicable performance period. Under the terms of the grants no number of PRSUs is guaranteed to vest and the actual number of PRSUs that will vest at the end of each performance period may be anywhere from zero percentto 150 percent of the target number depending on our relative TSR.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We determined the fair value of Dr. Monia&#x2019;s PRSUs using a Monte Carlo model because the performance target is based on our relative TSR, which represents a market condition. We are recognizing the grant date fair value of these awards as stock-based compensation expense using the accelerated multiple-option approach over the vesting period. The weighted-average grant date fair value of PRSUs granted to Dr. Monia for the nine months ended&#160;September 30, 2021 was $77.17 per share.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes stock-based compensation expense for the three and nine months ended&#160;September 30, 2021 and 2020 (in thousands).&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z80699f3bd74640d8abd3ddb51f6852b2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"/&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Cost of sales&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;111&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;315&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;293&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;902&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;23,332&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;25,359&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;71,979&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;76,931&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7,094&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;20,171&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,147&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;57,244&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total non-cash stock-based compensation expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;30,537&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;45,845&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98,419&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;135,077&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As of September 30, 2021, total unrecognized estimated non-cash stock-based compensation expense related to non-vested stock options, RSUs and PRSUs was $65.3 million, $72.2 million and $2.5 million, respectively. Our actual expenses may differ from these estimates because we will adjust our unrecognized non-cash stock-based compensation expense for future forfeitures. We expect to recognize the cost of non-cash stock-based compensation expense related to our non-vested stock options, RSUs and PRSUs over a weighted average amortization period of 1.2 years, 1.4 years and 1.2 years, respectively.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Amendments to Equity Plans&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;2020 Equity Incentive Plan&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In the second quarter of 2021, our Compensation Committee approved an amendment to the 2020 Plan. The amendment decreased the total number of shares of common stock authorized for issuance under the 2020 Plan from approximately 2.6 million to 1.6 million. We assumed the 2020 Plan in connection with Ionis&#x2019; reacquisition of all of the outstanding shares of Akcea Therapeutics, Inc. as part of the Akcea Merger.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;2011 Equity Incentive Plan&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In the second quarter of 2021, after receiving approval from our stockholders, we amended our 2011&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Equity Incentive Plan, or 2011 Plan. The amendment increased the total number of shares of common stock authorized for issuance under the 2011 Plan from &lt;/span&gt;23.0&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million to &lt;/span&gt;29.7&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million and added a fungible share counting ratio whereby the share reserve will be reduced by &lt;/span&gt;1.7&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; shares for each share of common stock issued pursuant to a full value award (i.e., RSU or PRSU) and increased by &lt;/span&gt;1.7&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; shares for each share of common stock returning from a full value award.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Impact of Recently Issued Accounting Standards&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As disclosed in the &#x201c;Convertible Debt&#x201d; policy above within this footnote, we adopted the simplified accounting for convertible debt instrument guidance (ASU 2020-06) on January 1, 2021. Refer to the section above for the impact of adoption. We do not expect any other recently issued accounting standards to have a material impact to our financial results.&lt;/div&gt;
</us-gaap:SignificantAccountingPoliciesTextBlock>
    <us-gaap:RevenueFromContractWithCustomerPolicyTextBlock
      contextRef="c20210101to20210930"
      id="Text_23dcd0c53d73416a92d74f38fe21501a">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Revenue Recognition&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Our Revenue Sources&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We generally recognize revenue when we have satisfied all contractual obligations and are reasonably assured of collecting the resulting receivable. We are often entitled to bill our customers and receive payment from our customers in advance of recognizing the revenue. In the instances in which we have received payment from our customers in advance of recognizing revenue, we include the amounts in deferred revenue on our condensed consolidated balance sheet.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We earn commercial revenue primarily in the form of royalty payments on net sales of SPINRAZA. We will also recognize as commercial revenue sales milestone payments and royalties we earn under our other partnerships.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In April 2021, we began commercializing TEGSEDI in North America through a distribution agreement with Swedish Orphan Biovitrum AB, or Sobi. In January 2021, we began commercializing TEGSEDI and WAYLIVRA in Europe through a distribution agreement with Sobi. Under our agreements, we are responsible for supplying finished goods inventory to Sobi and Sobi is responsible for selling each medicine to the end customer. As a result of these agreements, we earn a distribution fee on net sales from Sobi for each medicine.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Prior to the second quarter of 2021 in North America, we sold TEGSEDI through exclusive distribution agreements with third-party logistics companies, or 3PLs, that took title to TEGSEDI. The 3PLs then distributed TEGSEDI to a specialty pharmacy and a specialty distributor, which we collectively refer to as wholesalers, who then distributed TEGSEDI to health care providers and patients. In the United States, or U.S., we had a single 3PL as our sole customer and in Canada we also had a single 3PL as our sole customer. Prior to 2021 in Europe, we sold TEGSEDI and WAYLIVRA to hospitals and pharmacies, which were our customers, using 3PLs as distributors.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under our collaboration agreement with PTC Therapeutics International Limited, or PTC, PTC is responsible for commercializing TEGSEDI and WAYLIVRA in Latin America and Caribbean countries. In the third quarter of 2021, we earned a $4 million milestone payment from PTC when WAYLIVRA was approved in Brazil, which we included in TEGSEDI and WAYLIVRA revenue in our condensed consolidated statement of operations.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Research and development revenue under collaborative agreements&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We often enter into collaboration agreements to license and sell our technology on an exclusive or non-exclusive basis. Our collaboration agreements typically contain multiple elements, or performance obligations, including technology licenses or options to obtain technology licenses, research and development, or R&amp;amp;D, services, and manufacturing services.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;See &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Note 5, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Collaborative Arrangements and Licensing Agreements&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, for collaborations with substantive changes that occurred in 2021. Additionally, see &lt;/span&gt;Note 6, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Collaborative Arrangements and Licensing Agreements&lt;/span&gt;, in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for a summary of each of our material collaborative agreements.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Steps to Recognize Revenue&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We use a five-step process to determine the amount of revenue we should recognize and when we should recognize it. The five-step process is as follows:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zab71749e0e4f49e499c3c3967791b51a" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;1.&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Identify the contract&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accounting rules require us to first determine if we have a contract with our partner, including confirming that we have met each of the following criteria:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z024cc957654b4ca085cce3f3cc59d6e6" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We and our partner approved the contract and we are both committed to perform our obligations;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zb1963218390147ba9dca032413c3b7e9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We have identified our rights, our partner&#x2019;s rights and the payment terms;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z218eba371e8640008a30578a5182ed53" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We have concluded that the contract has commercial substance, meaning that the risk, timing, or amount of our future cash flows is expected to change as a result of the contract; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z5e5457e67b4946c9837b0f9ee3f99846" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We believe collectability of the consideration is probable.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z99f76379ac0943c59f09e766fd6d6bf1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;"&gt;2&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;"&gt;.&lt;/span&gt;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Identify the performance obligations&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We next identify our performance obligations, which represent the distinct goods and services we are required to provide under the contract. We typically have only one performance obligation at the inception of a contract, which is to perform R&amp;amp;D services.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Often we enter into a collaboration agreement in which we provide our partner with an option to license a medicine in the future. We may also provide our partner with an option to request that we provide additional goods or services in the future, such as active pharmaceutical ingredient, or API. We evaluate whether these options are material rights at the inception of the agreement. If we determine an option is a material right, we will consider the option a separate performance obligation. Historically, we have concluded that the options we grant to license a medicine in the future or to provide additional goods and services as requested by our partner are not material rights because these items are contingent upon future events that may not occur and are not priced at a significant discount. When a partner exercises its option to license a medicine or requests additional goods or services, then we identify a new performance obligation for that item.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In some cases, we deliver a license at the start of an agreement. If we determine that our partner has full use of the license and we do not have any additional material performance obligations related to the license after delivery, then we consider the license to be a separate performance obligation.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc2c19afad2c6419cb48f87aeae96e324" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;3.&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Determine the transaction price&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We then determine the transaction price by reviewing the amount of consideration we are eligible to earn under the collaboration agreement, including any variable consideration. Under our collaboration agreements, consideration typically includes fixed consideration in the form of an upfront payment and variable consideration in the form of potential milestone payments, license fees and royalties. At the start of an agreement, our transaction price usually consists of only the upfront payment. We do not typically include any payments we may receive in the future in our initial transaction price because the payments are not probable and are contingent on certain future events. We reassess the total transaction price at each reporting period to determine if we should include additional payments in the transaction price.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Milestone payments are our most common type of variable consideration. We recognize milestone payments using the most likely amount method because we will either receive the milestone payment or we will not, which makes the potential milestone payment a binary event. The most likely amount method requires us to determine the likelihood of earning the milestone payment. We include a milestone payment in the transaction price once it is probable we will achieve the milestone event. Most often, we do not consider our milestone payments probable until we or our partner achieve the milestone event because the majority of our milestone payments are contingent upon events that are not within our control and/or are usually based on scientific progress which is inherently uncertain. For example, in the third quarter of 2021, we earned a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We did not consider the milestone payment probable until Novartis achieved the milestone event because it was contingent on Novartis&#x2019; enrollment of patients and was not within our control. We recognized the milestone payment in full in the period the milestone event was achieved because we did not have any remaining performance obligations related to the milestone payment.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z0e5e2ea0afca436795d2299267aee8f8" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;4.&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Allocate the transaction price&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Next, we allocate the transaction price to each of our performance obligations. When we have to allocate the transaction price to more than one performance obligation, we make estimates of the relative stand-alone selling price of each performance obligation because we do not typically sell our goods or services on a stand-alone basis. We then allocate the transaction price to each performance obligation based on the relative stand-alone selling price. We do not reallocate the transaction price after the start of an agreement to reflect subsequent changes in stand-alone selling prices.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We may engage a third party, independent valuation specialist to assist us with determining a stand-alone selling price for collaborations in which we deliver a license at the start of an agreement. We estimate the stand-alone selling price of these licenses using valuation methodologies, such as the relief from royalty method. Under this method, we estimate the amount of income, net of taxes, for the license. We then discount the projected income to present value. The significant inputs we use to determine the projected income of a license could include:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zeaab9585dcbe4cc48becc78e545ec11f" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated future product sales;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z15a09b020bd148239ed6a817dd4da4f8" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated royalties we may receive from future product sales;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2523979e965643a4aad4d08b321a7edc" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated contractual milestone payments we may receive;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z988ecaf4d7c4486f8f7c68f198efed20" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated expenses we may incur;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z868e4b88873542dbabae8b099dc382eb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Estimated income taxes; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="ze30d570be0294f4ab6d50666e0e415e5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;A discount rate.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We typically estimate the selling price of R&amp;amp;D services by using our internal estimates of the cost to perform the specific services. The significant inputs we use to determine the selling price of our R&amp;amp;D services include:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2dd3331d1d82404fa0412f07a28c5c79" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The estimated number of internal hours we will spend performing these services;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z029de365d800459bbc5513523f5a5a7d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The estimated cost of work we will perform;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zbcf18559edbc4c7bbdf049dcd3b5fc34" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The estimated cost of work that we will contract with third parties to perform; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z5b2392fee3034e6daa12c05d913dce05" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The estimated cost of API we will use.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For purposes of determining the stand-alone selling price of the R&amp;amp;D services we perform and the API we will deliver, accounting guidance requires us to include a markup for a reasonable profit margin.&lt;/div&gt;

&lt;div style="text-align: justify;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; &lt;/span&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zaa266e1aaa6648d482a9511662ff6ba5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;5.&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Recognize revenue&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize revenue in one of two ways, over time or at a point in time. We recognize revenue over time when we are executing on our performance obligation over time and our partner receives benefit over time. For example, we recognize revenue over time when we provide R&amp;amp;D services. We recognize revenue at a point in time when our partner receives full use of an item at a specific point in time. For example, we recognize revenue at a point in time when we deliver a license or API to a partner.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For R&amp;amp;D services that we recognize over time, we measure our progress using an input method. The input methods we use are based on the effort we expend or costs we incur toward the satisfaction of our performance obligation. We estimate the amount of effort we expend, including the time we estimate it will take us to complete the activities, or costs we incur in a given period, relative to the estimated total effort or costs to satisfy the performance obligation. This results in a percentage that we multiply by the transaction price to determine the amount of revenue we recognize each period. This approach requires us to make numerous estimates and use significant judgement. If our estimates or judgements change over the course of the collaboration, they may affect the timing and amount of revenue that we recognize in the current and future periods.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following are examples of when we typically recognize revenue based on the types of payments we receive.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize royalty revenue, including royalties from SPINRAZA sales, in the period in which the counterparty sells the related product and recognizes the related revenue, which in certain cases may require us to estimate our royalty revenue.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under our distribution agreements with Sobi we concluded that our performance obligation is to provide services to Sobi over the term of the agreement, which includes supplying finished goods inventory to Sobi and because we retained the marketing authorization for TEGSEDI and WAYLIVRA we are responsible for leading the global commercial strategy for each medicine. We view this performance obligation as a series of distinct activities that are substantially the same. Therefore, we recognize as revenue the price Sobi pays us for the inventory when we deliver the finished goods inventory to Sobi. We also recognize distribution fee revenue based on Sobi&#x2019;s net sales of TEGSEDI and WAYLIVRA. Under our agreements with Sobi, Sobi does not generally have a right of return.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Prior to our distribution agreements with Sobi, we recognized TEGSEDI and WAYLIVRA commercial revenue in the period when our customer obtained control of our products, which occurred at a point in time upon transfer of title to the customer. We classified payments to customers or other parties in the distribution channel for services that were distinct and priced at fair value as selling, general and administrative, or SG&amp;amp;A, expenses in our condensed consolidated statements of operations. We classified payments to customers or other parties in the distribution channel that did not meet those criteria as a reduction of revenue, as discussed further below. We excluded from revenues taxes collected from customers relating to TEGSEDI and WAYLIVRA commercial revenue and remitted these amounts to governmental authorities.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Reserves for TEGSEDI and WAYLIVRA commercial revenue&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under our distribution agreements with Sobi, Sobi is responsible for any applicable reserves.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Prior to our distribution agreements with Sobi, w&lt;/span&gt;e recorded TEGSEDI and WAYLIVRA commercial revenue at our net sales price, or transaction price. We included in our transaction price estimated reserves for discounts, returns, chargebacks, rebates and other allowances that we offered within contracts between us and our customers, wholesalers, distributors, health care providers and other indirect customers. We estimated our reserves using the amounts we have earned or we could claim on the associated sales. We classified our reserves as a reduction of accounts receivable when we were not required to make a payment or as a current liability when we were required to make a payment. In certain cases, our estimates included a range of possible outcomes that were probability weighted for relevant factors such as our historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, our reserves reflected our best estimates under the terms of our respective contracts. When calculating our reserves and related TEGSEDI and WAYLIVRA commercial revenue, we only recognized amounts to the extent that we considered it probable that we would not have to reverse a significant amount of the cumulative sales we previously recognized in a future period. Under our agreements with Sobi, we transferred all reserves to Sobi. See our revenue recognition policy in Note 1, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Organization and Significant Accounting Policies&lt;/span&gt;, of our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for additional details regarding how we accounted for the reserves related to TEDSEDI and WAYLIVIRA product sales prior to our agreements with Sobi.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Research and development revenue under collaboration agreements:&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Upfront payments&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;When we enter into a collaboration agreement and receive an upfront payment, we typically record the entire upfront payment as deferred revenue if our only performance obligation is for R&amp;amp;D services we will provide in the future. We amortize the upfront payment into revenue as we perform the R&amp;amp;D services. For example, under our collaboration agreement with Roche to develop IONIS-FB-L&lt;sub&gt;Rx&lt;/sub&gt; for the treatment of complement-mediated diseases, we received a $75 million upfront payment in the fourth quarter of 2018. We allocated the upfront payment to our single performance obligation, R&amp;amp;D services. We are amortizing the $75 million upfront payment using an input method over the estimated period of time we are providing R&amp;amp;D services.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Milestone payments&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We are required to include additional consideration in the transaction price when it is probable. We typically include milestone payments for R&amp;amp;D services in the transaction price when they are achieved. We include these milestone payments when they are achieved because typically there is considerable uncertainty in the research and development processes that trigger these payments. Similarly, we include approval milestone payments in the transaction price once the medicine is approved by the applicable regulatory agency. We will recognize sales-based milestone payments in the period in which we achieve the milestone under the sales-based royalty exception allowed under accounting rules.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize milestone payments that relate to an ongoing performance obligation over our period of performance. For example, in the fourth quarter of 2020, we achieved a $7.5 million milestone payment from Biogen when we advanced a target under our 2018 strategic collaboration. We added this payment to the transaction price and allocated it to our R&amp;amp;D services performance obligation. We are recognizing revenue related to this milestone payment over our estimated period of performance.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Conversely, we recognize in full those milestone payments that we earn based on our partners&#x2019; activities when our partner achieves the milestone event and we do not have a performance obligation. For example, in the third quarter of 2021, we recognized a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We recognized the milestone payment in full in the third quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;License fees&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We generally recognize as revenue the total amount we determine to be the relative stand-alone selling price of a license when we deliver the license to our partner. This is because our partner has full use of the license and we do not have any additional performance obligations related to the license after delivery. For example, in the fourth quarter of 2020, we earned a $30 million license fee from AstraZeneca when AstraZeneca licensed ION455, an investigational medicine in development to treat nonalcoholic steatohepatitis, or NASH.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="text-decoration: underline;"&gt;Sublicense fees&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize sublicense fee revenue in the period in which a party, who has already licensed our technology, further licenses the technology to another party because we do not have any performance obligations related to the sublicense.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Amendments to Agreements&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;From time to time we amend our collaboration agreements. When this occurs, we are required to assess the following items to determine the accounting for the amendment:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z9c306ffd794f472ca5b606c438bf5a4b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;If the additional goods and/or services are distinct from the other performance obligations in the original agreement; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2e299ba86071471289d0de0c0f75ad1b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;If the goods and/or services are sold at a stand-alone selling price.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;If we conclude the goods and/or services in the amendment are distinct from the performance obligations in the original agreement and at a stand-alone selling price, we account for the amendment as a separate agreement. If we conclude the goods and/or services are not distinct and are sold at a stand-alone selling price, we then assess whether the remaining goods or services are distinct from those already provided. If the goods and/or services are distinct from what we have already provided, then we allocate the remaining transaction price from the original agreement and the additional transaction price from the amendment to the remaining goods and/or services. If the goods and/or services are not distinct from what we have already provided, we update the transaction price for our single performance obligation and recognize any change in our estimated revenue as a cumulative adjustment.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For example, in May 2015, we entered into an exclusive license agreement with Bayer to develop and commercialize IONIS-FXI&lt;sub&gt;Rx&lt;/sub&gt; for the prevention of thrombosis. As part of the agreement, Bayer paid us a&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; $&lt;/span&gt;100&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million upfront payment. At the onset of the agreement, we were responsible for completing a Phase 2 study of IONIS-FXI&lt;/span&gt;&lt;sub&gt;Rx&lt;/sub&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; in people with end-stage renal disease on hemodialysis and for providing an initial supply of API. In February 2017, we amended our agreement with Bayer to advance IONIS-FXI&lt;/span&gt;&lt;sub&gt;Rx&lt;/sub&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and to initiate development of fesomersen (IONIS-FXI-L&lt;/span&gt;&lt;sub&gt;Rx&lt;/sub&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;), which Bayer licensed. As part of the 2017 amendment, Bayer paid us $&lt;/span&gt;75&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million. We are also eligible to receive milestone payments and tiered royalties on gross margins of IONIS-FXI&lt;/span&gt;&lt;sub&gt;Rx&lt;/sub&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and fesomersen. Under the 2017 amendment, we concluded we had a new agreement with &lt;/span&gt;three&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; performance obligations. These performance obligations were to deliver the license of fesomersen, to provide R&amp;amp;D services and to deliver API. We allocated the $&lt;/span&gt;75&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million transaction price to these performance obligations. Refer to Note 6, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Collaborative Arrangements and Licensing Agreements&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, &lt;/span&gt;in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020&#160;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;for further discussion of the Bayer collaboration.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Multiple agreements&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;From time to time, we may enter into separate agreements at or near the same time with the same partner. We evaluate such agreements to determine whether we should account for them individually as distinct arrangements or whether the separate agreements should be combined and accounted for together. We evaluate the following to determine the accounting for the agreements:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7d49b45a2eb04336b4419366ac3857bd" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Whether the agreements were negotiated together with a single objective;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc42f620f66da4691b1d07dc612437121" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Whether the amount of consideration in one contract depends on the price or performance of the other agreement; or&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7420d29e9e9741799400cb97bac13094" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Whether the goods and/or services promised under the agreements are a single performance obligation.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our evaluation involves significant judgment to determine whether a group of agreements might be so closely related that accounting guidance requires us to account for them as a combined arrangement.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For example, in the second quarter of 2018, we entered into two separate agreements with Biogen at the same time: a new strategic neurology collaboration agreement and a stock purchase agreement, or SPA. &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We evaluated the Biogen agreements to determine whether we should treat the agreements separately or combine them. We considered that the agreements were negotiated concurrently and in contemplation of one another. Based on these facts and circumstances, we concluded that we should evaluate the provisions of the agreements on a combined basis. &lt;/span&gt;&lt;/div&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Contracts Receivable&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Our contracts receivable balance represents the amounts we have billed our partners or customers and that are due to us unconditionally for goods we have delivered or services we have performed. When we bill our partners or customers with payment terms based on the passage of time, we consider the contracts receivable to be unconditional. We typically receive payment within &lt;/span&gt;&lt;span style="-sec-ix-hidden:Fact_cb46feec840d4d05b86df2a2af3b44c3"&gt;one quarter&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; of billing our partner or customer&lt;/span&gt;.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As of September 30, 2021, approximately 58.3 percent of our contracts receivables were from three significant customers. As of December 31, 2020, approximately 99.5 percent of our contracts receivables were from two significant customers.&lt;/div&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Unbilled SPINRAZA Royalties&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our unbilled SPINRAZA royalties represent our right to receive consideration from Biogen in advance of when we are eligible to bill Biogen for SPINRAZA royalties. We include these unbilled amounts in other current assets on our condensed consolidated balance sheet.&lt;/div&gt;
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&lt;div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Deferred Revenue&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We are often entitled to bill our customers and receive payment from our customers in advance of our obligation to provide services or transfer goods to our partners. In these instances, we include the amounts in deferred revenue on our condensed consolidated balance sheet.&lt;/span&gt; During the three months ended&#160;September 30, 2021 and 2020, we recognized $21.1 million and $22.5 million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;During the &lt;/span&gt;nine months ended&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;&#160;&lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and &lt;/span&gt;2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, we recognized $&lt;/span&gt;71.9&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million and $&lt;/span&gt;84.1&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. &lt;/span&gt;For further discussion, refer to our revenue recognition policy above.&lt;/div&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Cost of Sales&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our cost of sales includes manufacturing costs, transportation and freight costs and indirect overhead costs associated with the manufacturing and distribution of our products. We also may include certain period costs related to manufacturing services and inventory adjustments in cost of sales. &lt;/div&gt;
</us-gaap:CostOfSalesPolicyTextBlock>
    <us-gaap:InvestmentPolicyTextBlock
      contextRef="c20210101to20210930"
      id="Text_2be3f3248a3e4b9897806424f39c50c5">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Cash, Cash Equivalents and Investments&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We consider all liquid investments with maturities of three months or less when we purchase them to be cash equivalents. Our short-term investments have initial maturities of greater than three months from date of purchase. We classify our short-term debt investments as &#x201c;available-for-sale&#x201d; and carry them at fair market value based upon prices on the last day of the fiscal period for identical or similar items. We record unrealized gains and losses on debt securities as a separate component of comprehensive income (loss) and include net realized gains and losses in gain (loss) on investments in our condensed consolidated statement of operations. We use the specific identification method to determine the cost of securities sold.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We also have equity investments of less than 20 percent ownership in publicly and privately held biotechnology companies that we received as part of a technology license or partner agreement. At September 30, 2021, we held equity investments in three publicly held companies, Antisense Therapeutics Limited, or ATL, Bicycle Therapeutics plc, or Bicycle, and ProQR Therapeutics N.V., or ProQR. We also held equity investments in seven privately held companies, Aro Biotherapeutics, Atlantic Pharmaceuticals Limited, Dynacure SAS, Empirico, Inc., Flamingo Therapeutics BV, YourBio Health, Inc. (formerly Seventh Sense Biosystems) and Suzhou-Ribo Life Science Co, Ltd.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We are required to measure and record our equity investments at fair value and to recognize the changes in fair value in our condensed consolidated statement of operations. We account for our equity investments in privately held companies at their cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. For example, during the second and fourth quarters of 2020, we revalued our investments in three privately held companies, Dynacure, Suzhou-Ribo and Aro Biotherapeutics because the companies sold additional equity securities that were similar to the equity we own. These observable price changes resulted in us recognizing a $6.3 million gain on our investment in Dynacure, a $3.0 million gain on our investment in Suzhou-Ribo and a $5.5 million gain on our investment in Aro Biotherapeutics in our condensed consolidated statement of operations during 2020 because the sales were at higher prices compared to our recorded value.&lt;/div&gt;
</us-gaap:InvestmentPolicyTextBlock>
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    <ions:NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment
      contextRef="c20210930"
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    <us-gaap:GainLossOnInvestments
      contextRef="c20200401to20201231_FinancialInstrumentAxis_DynacureSasMember"
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      unitRef="U002">6300000</us-gaap:GainLossOnInvestments>
    <us-gaap:GainLossOnInvestments
      contextRef="c20200401to20201231_FinancialInstrumentAxis_SuzhouRiboLifeScienceCoLtdMember"
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      unitRef="U002">3000000.0</us-gaap:GainLossOnInvestments>
    <us-gaap:GainLossOnInvestments
      contextRef="c20200401to20201231_FinancialInstrumentAxis_AroBiotherapeuticsMember"
      decimals="-5"
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      unitRef="U002">5500000</us-gaap:GainLossOnInvestments>
    <us-gaap:InventoryPolicyTextBlock
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Inventory Valuation&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We reflect our inventory on our condensed consolidated balance sheet at the lower of cost or net realizable value under the first-in, first-out method, or FIFO. We capitalize the costs of raw materials that we purchase for use in producing our medicines because until we use these raw materials, they have alternative future uses, which we refer to as clinical raw materials. We include in inventory raw material costs for medicines that we manufacture for our partners under contractual terms and that we use primarily in our clinical development activities and drug products. We can use each of our raw materials in multiple products and, as a result, each raw material has future economic value independent of the development status of any single medicine. For example, if one of our medicines failed, we could use the raw materials for that medicine to manufacture our other medicines. We expense these costs as R&amp;amp;D expenses when we begin to manufacture API for a particular medicine if the medicine has not been approved for marketing by a regulatory agency. Our raw materials- commercial inventory includes API for our commercial medicines. We capitalize material, labor and overhead costs as part of our raw materials- commercial inventory.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We obtained the first regulatory approval for TEGSEDI in July 2018 and for WAYLIVRA in May 2019. At September 30, 2021, our physical inventory for TEGSEDI and WAYLIVRA included API that we produced prior to when we obtained regulatory approval. As such, this API has no cost basis as we had previously expensed the costs as R&amp;amp;D expenses.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We review our inventory periodically and reduce the carrying value of items we consider to be slow moving or obsolete to their estimated net realizable value based on forecasted demand compared to quantities on hand. We consider several factors in estimating the net realizable value, including shelf life of our inventory, alternative uses for our medicines in development and historical write-offs. For the nine months ended&#160;September 30, 2021 and 2020, we recorded an immaterial amount of inventory write-offs.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our inventory consisted of the following (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2797308125a14c86aa5621d5f05e5205" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials:&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 19.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials- clinical&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,993&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,206&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -18pt; margin-left: 28.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials- commercial&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,147&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7,502&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total raw materials&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16,140&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16,708&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Work in process&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,183&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,252&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Finished goods&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;607&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;3,005&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: justify; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total inventory&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;22,930&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,965&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
</us-gaap:InventoryPolicyTextBlock>
    <us-gaap:ScheduleOfInventoryCurrentTableTextBlock
      contextRef="c20210101to20210930"
      id="Text_36cd1b45dfff4b728da90ffcc303bb51">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our inventory consisted of the following (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2797308125a14c86aa5621d5f05e5205" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials:&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 19.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials- clinical&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,993&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,206&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -18pt; margin-left: 28.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Raw materials- commercial&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,147&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7,502&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total raw materials&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16,140&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16,708&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Work in process&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,183&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,252&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Finished goods&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;607&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;3,005&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: justify; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total inventory&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;22,930&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,965&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
</us-gaap:ScheduleOfInventoryCurrentTableTextBlock>
    <us-gaap:InventoryRawMaterials
      contextRef="c20210930_PublicUtilitiesInventoryAxis_ClinicalRawMaterialsMember"
      decimals="-3"
      id="Fact_3043726b7f0d40479abbe8c68900b93f"
      unitRef="U002">11993000</us-gaap:InventoryRawMaterials>
    <us-gaap:InventoryRawMaterials
      contextRef="c20201231_PublicUtilitiesInventoryAxis_ClinicalRawMaterialsMember"
      decimals="-3"
      id="Fact_6cec13c5f4334a1ba6216a6bc406747c"
      unitRef="U002">9206000</us-gaap:InventoryRawMaterials>
    <us-gaap:InventoryRawMaterials
      contextRef="c20210930_PublicUtilitiesInventoryAxis_CommercialRawMaterialsMember"
      decimals="-3"
      id="Fact_4a8280762bb1470eace824e402d6b623"
      unitRef="U002">4147000</us-gaap:InventoryRawMaterials>
    <us-gaap:InventoryRawMaterials
      contextRef="c20201231_PublicUtilitiesInventoryAxis_CommercialRawMaterialsMember"
      decimals="-3"
      id="Fact_cf1accaf2b004921b424e5cd65e40c1f"
      unitRef="U002">7502000</us-gaap:InventoryRawMaterials>
    <us-gaap:InventoryRawMaterials
      contextRef="c20210930"
      decimals="-3"
      id="Fact_9975fb0b2fa74f9e8ab81ebad8fb2237"
      unitRef="U002">16140000</us-gaap:InventoryRawMaterials>
    <us-gaap:InventoryRawMaterials
      contextRef="c20201231"
      decimals="-3"
      id="Fact_e3f1efde1cdb414796dec720e17eac54"
      unitRef="U002">16708000</us-gaap:InventoryRawMaterials>
    <us-gaap:InventoryWorkInProcess
      contextRef="c20210930"
      decimals="-3"
      id="Fact_e7c4b729eb5c4047a12ddaf1f657b647"
      unitRef="U002">6183000</us-gaap:InventoryWorkInProcess>
    <us-gaap:InventoryWorkInProcess
      contextRef="c20201231"
      decimals="-3"
      id="Fact_182d548d120f4e1daae74044c3e1bbe5"
      unitRef="U002">2252000</us-gaap:InventoryWorkInProcess>
    <us-gaap:InventoryFinishedGoods
      contextRef="c20210930"
      decimals="-3"
      id="Fact_b21c128f10e14f89b4963ecd92676ea1"
      unitRef="U002">607000</us-gaap:InventoryFinishedGoods>
    <us-gaap:InventoryFinishedGoods
      contextRef="c20201231"
      decimals="-3"
      id="Fact_70a3a016ecb849cd9021230823cf224d"
      unitRef="U002">3005000</us-gaap:InventoryFinishedGoods>
    <us-gaap:InventoryNet
      contextRef="c20210930"
      decimals="-3"
      id="Fact_6f6a7ebaae1b4d95ace7fcfcf1fba210"
      unitRef="U002">22930000</us-gaap:InventoryNet>
    <us-gaap:InventoryNet
      contextRef="c20201231"
      decimals="-3"
      id="Fact_3e4c02edf53745679ae7e698216e7837"
      unitRef="U002">21965000</us-gaap:InventoryNet>
    <us-gaap:LesseeLeasesPolicyTextBlock
      contextRef="c20210101to20210930"
      id="Text_6c8153e9498a40068f8b4f51eed27ebe">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Leases&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We determine if an arrangement contains a lease at inception. We currently only have operating leases. We recognize a right-of-use operating lease asset and associated short- and long-term operating lease liability on our condensed consolidated balance sheet for operating leases greater than one year. Our right-of-use assets represent our right to use an underlying asset for the lease term and our lease liabilities represent our obligation to make lease payments arising from the lease arrangement. We recognize our right-of-use operating lease assets and lease liabilities based on the present value of the future minimum lease payments we will pay over the lease term. We determine the lease term at the inception of each lease, and in certain cases our lease term could include renewal options if we concluded we were reasonably certain that we will exercise the renewal option. When we exercise a lease option that was not previously included in the initial lease term, we reassess our right-of-use asset and lease liabilities for the new lease term.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As our current leases do not provide an interest rate implicit in the lease, we used our incremental borrowing rate, based on the information available on the date we adopted Topic 842 (January 2019), as of the lease inception date or at the lease option extension date in determining the present value of future payments. We recognize rent expense for our minimum lease payments on a straight-line basis over the expected term of our lease. We recognize period expenses, such as common area maintenance expenses, in the period we incur the expense.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In September 2021, we entered into an operating lease agreement for office space located in Boston, Massachusetts. We determined that the lease commencement date is the date in which the space is ready for our occupancy, which we expect will be in the fourth quarter of 2021. &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We are leasing this space under a non-cancelable operating lease with an initial term ending &lt;/span&gt;91&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; months following the lease commencement date and an option to extend the lease for an additional &lt;/span&gt;five-year&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; term. Under the lease agreement, we will receive a &lt;/span&gt;seven-month&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; free rent period, which will commence on the lease commencement date. Our lease payments over the initial term total $&lt;/span&gt;6.8&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million. We will recognize a right-of-use lease asset and lease liability in the fourth quarter of 2021 upon the lease commencement date. Since we did not have the right to occupy the premises as of September 30, 2021, there was no accounting impact in the third quarter.&lt;/span&gt;&lt;/div&gt;
</us-gaap:LesseeLeasesPolicyTextBlock>
    <us-gaap:LesseeOperatingLeaseTermOfContract
      contextRef="c20210930_PropertyPlantAndEquipmentByTypeAxis_BuildingMember"
      id="Fact_ebc0dcab157845e3aa9c4dd6f5db0c5e">P91M</us-gaap:LesseeOperatingLeaseTermOfContract>
    <us-gaap:LesseeOperatingLeaseRenewalTerm
      contextRef="c20210930_PropertyPlantAndEquipmentByTypeAxis_BuildingMember"
      id="Fact_de98a8c5b77a4ba1a8b3e6ddfcf68209">P5Y</us-gaap:LesseeOperatingLeaseRenewalTerm>
    <ions:LesseeOperatingLeaseFreeRentPeriod
      contextRef="c20210101to20210930_PropertyPlantAndEquipmentByTypeAxis_BuildingMember"
      id="Fact_0275138594624bfaab5a87b2a241e309">P7M</ions:LesseeOperatingLeaseFreeRentPeriod>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
      contextRef="c20210930_PropertyPlantAndEquipmentByTypeAxis_BuildingMember"
      decimals="-5"
      id="Fact_15a6a1a451574b6b934f79a4416b0c7d"
      unitRef="U002">6800000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue>
    <us-gaap:ResearchAndDevelopmentExpensePolicy
      contextRef="c20210101to20210930"
      id="Text_d2e79a616c5149af971d3c0c1c8a1bfb">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our research and development expenses include wages, benefits, facilities, supplies, external services, clinical trial and manufacturing costs and other expenses that are directly related to our research and development operations. We expense research and development costs as we incur them. When we make payments for research and development services prior to the services being rendered, we record those amounts as prepaid assets on our condensed consolidated balance sheet and we expense them as the services are provided.&lt;/div&gt;
</us-gaap:ResearchAndDevelopmentExpensePolicy>
    <us-gaap:IntangibleAssetsFiniteLivedPolicy
      contextRef="c20210101to20210930"
      id="Text_eae0e633d40249c1b8d1ca3267edd5ca">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We capitalize costs consisting principally of outside legal costs and filing fees related to obtaining patents. We amortize patent costs over the useful life of the patent, beginning with the date the U.S. Patent and Trademark Office, or foreign equivalent, issues the patent. &lt;/span&gt;We review our capitalized patent costs regularly to ensure that they include costs for patents and patent applications that have future value. When we identify patents and patent applications that we are not actively pursuing, we write off any associated costs&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;.&lt;/span&gt;&lt;/div&gt;
</us-gaap:IntangibleAssetsFiniteLivedPolicy>
    <us-gaap:IncomeTaxPolicyTextBlock
      contextRef="c20210101to20210930"
      id="Text_f07117ba6b154c219bc9ea7670cbc326">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Income Taxes&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We account for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In addition, deferred tax assets are recorded for the future benefit of utilizing net operating losses and research and development credit carryforwards. We record a valuation allowance when necessary to reduce our net deferred tax assets to the amount we expect to realize.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We evaluate our deferred tax assets regularly to determine whether adjustments to the valuation allowance are appropriate due to changes in facts or circumstances, such as changes in expected future pre-tax earnings, tax law, interactions with taxing authorities and developments in case law. In making this evaluation, we rely on our recent history of pre-tax earnings. Our material assumptions are our forecasts of future pre-tax earnings and the nature and timing of future deductions and income represented by the deferred tax assets and liabilities, all of which involve the exercise of significant judgment.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We assessed our valuation allowance requirements and recorded a valuation allowance against all of Ionis&#x2019; U.S. federal net deferred tax assets in the fourth quarter of 2020, due to uncertainties related to our ability to realize the tax benefits associated with these assets. We based our determination largely on Akcea rejoining the Ionis U.S. consolidated federal tax group in the fourth quarter of 2020. Due to Akcea&#x2019;s historical and projected financial statement losses, and the negative impact we expect this to have on Ionis&#x2019; consolidated taxable income, there is uncertainty of generating sufficient consolidated pre-tax income in future periods to realize the Ionis deferred tax benefits. We also expect that Ionis&#x2019; pre-tax income in future periods may be lower due to increased research and development expenses associated with our pipeline of wholly owned medicines. We continue to maintain a valuation allowance against all our consolidated U.S. federal and state net deferred tax assets.&lt;/div&gt;
</us-gaap:IncomeTaxPolicyTextBlock>
    <us-gaap:ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock
      contextRef="c20210101to20210930"
      id="Text_f326f7d8eff14d82bfdd56e71f4064a7">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Long-lived Assets&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We evaluate long-lived assets, which include property, plant and equipment and patent costs, for impairment on at least a quarterly basis and whenever events or changes in circumstances indicate that we may not be able to recover the carrying amount of such assets.&lt;/div&gt;
</us-gaap:ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock>
    <us-gaap:UseOfEstimates
      contextRef="c20210101to20210930"
      id="Text_1b675f2ad8574bcb81c03f729eba4aa0">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Use of Estimates&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We prepare our condensed consolidated financial statements in conformity with accounting principles generally accepted in the &lt;/span&gt;U.S. that require us to make estimates and assumptions that affect the amounts reported in our condensed consolidated financial statements and accompanying notes. Actual results could differ from our estimates.&lt;/div&gt;
</us-gaap:UseOfEstimates>
    <us-gaap:EarningsPerSharePolicyTextBlock
      contextRef="c20210101to20210930"
      id="Text_d8ae7016e11e44938c278329c28c5334">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Basic and Diluted Net Loss Per Share&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Basic net loss per share&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We calculated our basic net loss per share for the three and nine months ended&#160;September 30, 2021 by dividing our net loss by our weighted-average number of common shares outstanding during the period. For the first nine months of 2021, we did not have to consider Akcea results separately in our calculation because we owned 100 percent of Akcea for the entire period. Our basic net loss per share for the three and nine months ended September 30, 2021 was $0.58 and $1.80, respectively.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In the third quarter of 2020, prior to the Akcea Merger, we calculated our basic net loss per share for the three and nine months ended&#160;September 30, 2020 by calculating our net loss for Ionis on a stand-alone basis plus our share of Akcea&#x2019;s net loss for the period to determine our total net loss attributable to our common stockholders. To calculate the portion of Akcea&#x2019;s net loss attributable to our ownership, we multiplied Akcea&#x2019;s net loss per share by the weighted average shares we owned in Akcea during the period. As a result of this calculation, our total net loss available to Ionis common stockholders for the calculation of net loss per share is different than our net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders in the condensed consolidated statements of operations.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We calculated our basic net loss per share for the three months ended September 30, 2020 as follows (in thousands, except per share amounts):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z6e0bd4e1d49640db8eda4dfa200753da" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three months ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Average Shares&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Owned in Akcea&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Akcea&#x2019;s&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Per Share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Basic&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss Per&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Share Calculation&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(as revised*)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; portion of Akcea&#x2019;s net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;77,095&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.49&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(37,822&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Akcea&#x2019;s net loss attributable to our ownership&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(37,822&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; stand-alone net income&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13,251&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss available to Ionis common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(24,571&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Weighted average shares outstanding&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;139,708&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.18&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We calculated our basic net loss per share for the nine months ended&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;&#160;&lt;/span&gt;September 30, 2020 as follows (in thousands, except per share amounts):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z829b7fd73abe4d0c8c02eb55723b4acb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine months ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Average Shares&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Owned in Akcea&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Akcea&#x2019;s&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Per Share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Basic&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss Per&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Share Calculation&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(as revised*)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; portion of Akcea&#x2019;s net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;77,095&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1.40&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(108,176&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Akcea&#x2019;s net loss attributable to our ownership&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(108,176&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; stand-alone net income&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;18,235&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss available to Ionis common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(89,941&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Weighted average shares outstanding&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;139,497&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.64&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z729f964a8a84426883f8b1deee9b51f1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;*&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Significant Accounting Policies&lt;/span&gt;, for further information.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Diluted net loss per share&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For the three and nine months ended&#160;September 30, 2021 and 2020, we incurred a net loss; therefore, we did not include dilutive common equivalent shares in the computation of diluted net loss per share because the effect would have been anti-dilutive. Common stock from the following would have had an anti-dilutive effect on net loss per share:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z43d84bc7ea3844d0ab074f4aa14288ed" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.125 percent convertible senior notes, or 0.125% Notes;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc1d1cebf8f2943f58e6a0bab1688a49b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Note hedges related to the 0.125% Notes;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z59e22ca8a35544a79ebbedf7c6346417" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1 percent convertible senior notes, or 1% Notes;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z539f9c2b28eb4676a4b27d0fbf14f0cb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dilutive stock options;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7a3ed3c754f540b493056e2df93ae913" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unvested restricted stock units, or RSUs;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z275182c1f5ad46399f780e650f2fef54" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unvested performance restricted stock units, or PRSUs; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z60f2bd6315a04ca196589bd19dee4ef2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Employee Stock Purchase Plan, or ESPP.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For the three and nine months ended&#160;September 30, 2021, common stock from the following would also have had an anti-dilutive effect on net loss per share:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z250741ef32e94c51a4bb935fd455314d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0 percent convertible senior notes, or 0% Notes; and&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z9eb4d5480810437bad6ba3b4e0c58082" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 36pt;"/&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x25cf;&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Note hedges related to the 0% Notes.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additionally as of September 30, 2021, we had warrants related to our 0% and 0.125% Notes outstanding. We will include the shares issuable under these warrants in our calculation of diluted earnings per share when the average market price per share of our common stock for the reporting period exceeds the strike price of the warrants.&lt;/div&gt;
</us-gaap:EarningsPerSharePolicyTextBlock>
    <us-gaap:MinorityInterestOwnershipPercentageByParent
      contextRef="c20210930_OwnershipAxis_AkceaTherapeuticsIncMember"
      decimals="2"
      id="Fact_13943e6576ca415a83b7d65c86a49bff"
      unitRef="U003">1</us-gaap:MinorityInterestOwnershipPercentageByParent>
    <us-gaap:EarningsPerShareBasic
      contextRef="c20210701to20210930"
      decimals="2"
      id="Fact_aab817918ee7462eafc4e0247e0ea5c8"
      unitRef="U004">-0.58</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareBasic
      contextRef="c20210101to20210930"
      decimals="2"
      id="Fact_61b85f922d4f4d538dbebcaac8baaa55"
      unitRef="U004">-1.80</us-gaap:EarningsPerShareBasic>
    <us-gaap:ScheduleOfEarningsPerShareBasicByCommonClassTextBlock
      contextRef="c20210101to20210930"
      id="Text_505ee5825fe0489392c0bcd8492d685a">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We calculated our basic net loss per share for the three months ended September 30, 2020 as follows (in thousands, except per share amounts):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z6e0bd4e1d49640db8eda4dfa200753da" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three months ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Average Shares&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Owned in Akcea&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Akcea&#x2019;s&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Per Share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Basic&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss Per&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Share Calculation&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(as revised*)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; portion of Akcea&#x2019;s net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;77,095&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.49&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(37,822&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Akcea&#x2019;s net loss attributable to our ownership&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(37,822&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; stand-alone net income&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13,251&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss available to Ionis common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(24,571&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Weighted average shares outstanding&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;139,708&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.18&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We calculated our basic net loss per share for the nine months ended&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;&#160;&lt;/span&gt;September 30, 2020 as follows (in thousands, except per share amounts):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z829b7fd73abe4d0c8c02eb55723b4acb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine months ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Weighted&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Average Shares&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Owned in Akcea&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Akcea&#x2019;s&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Per Share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Basic&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Net Loss Per&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Share Calculation&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(as revised*)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; portion of Akcea&#x2019;s net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;77,095&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1.40&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(108,176&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Akcea&#x2019;s net loss attributable to our ownership&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(108,176&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ionis&#x2019; stand-alone net income&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;18,235&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss available to Ionis common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(89,941&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Weighted average shares outstanding&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;139,497&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.64&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
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&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z729f964a8a84426883f8b1deee9b51f1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;*&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Significant Accounting Policies&lt;/span&gt;, for further information.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Convertible Debt&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Adoption of ASU 2020-06&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In August 2020, the FASB issued ASU 2020-06, which simplifies&lt;/span&gt; the accounting for convertible debt instruments&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, amends the guidance on derivative scope exceptions for contracts in an entity&#x2019;s own equity, and modifies the guidance on diluted earnings per share calculations. We adopted ASU 2020-06 on January 1, 2021 under the full retrospective approach, which required us to revise our prior period financial statements. This guidance impacted our accounting for outstanding convertible debt. At January 1, 2021, we had &lt;/span&gt;two&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; outstanding convertible notes, our &lt;/span&gt;0.125%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes, which mature in December 2024, and our &lt;/span&gt;1%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes, which mature in November 2021. In April 2021, we completed a $&lt;/span&gt;632.5&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million offering of &lt;/span&gt;0%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes primarily to repurchase a majority of our &lt;/span&gt;1%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes. We accounted for our &lt;/span&gt;0%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes under ASU 2020-06 at issuance. Refer to Note 6, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Convertible Debt&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, for further information.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The updated guidance eliminates the cash conversion accounting model we previously followed in Accounting Standard Codification, or ASC, 470-20, which required us to separate each of our convertible debt instruments at issuance into two units of accounting, a liability component, based on our nonconvertible debt borrowing rate at issuance, and an equity component. Under ASU 2020-06, we now account for each of our convertible debt instruments as a single unit of accounting, a liability, because we concluded that the conversion features do not require bifurcation as a derivative under ASC 815-15 and our convertible debt instruments were not issued at a substantial premium. Since we adopted ASU 2020-06 using the full retrospective approach, we were required to apply the guidance to all convertible debt instruments we had outstanding as of January 1, 2019. We recomputed the basis of each convertible debt instrument as if we accounted for each as a single unit of accounting at issuance. This update included recalculating the amortization of debt issuance costs using an updated effective interest rate. As a result of adopting ASU 2020-06, we recorded a cumulative adjustment to decrease our additional paid in capital and our accumulated deficit at January 1, 2019. We have updated these financial statements to reflect the cumulative adjustment for the periods presented. We have labeled our prior period financial statements &#x201c;as revised&#x201d; to indicate the change required under the new accounting guidance. Below is a summary of the change in our balance sheet at December 31, 2020 and statement of operations from the three and nine months ended&#160;September 30, 2020 under the ASC 470-20 legacy guidance compared to the new ASU 2020-06 guidance we adopted:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the adjustments we made to the condensed consolidated balance sheet we originally reported at December 31, 2020 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z61ca4ada3097492594c0401d2ef05dfb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1 percent convertible senior notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;293,161&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,648&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;308,809&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.125 percent convertible senior notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;455,719&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;84,417&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;540,136&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,113,646&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,127&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,895,519&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,249,368&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;118,062&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,131,306&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under ASU 2020-06, our revised ending balances for our 1% Notes and 0.125% Notes as of December 31, 2020 represent the principal balance of each convertible debt instrument less debt issuance costs. Additionally, because we have deferred tax assets related to our convertible debt instruments, we also adjusted these amounts as part of our adoption of ASU 2020-06. However, because we have a full valuation allowance on our deferred tax assets, there was no impact to our condensed consolidated balance sheet related to our deferred tax assets.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following tables summarize the adjustments we made to the condensed consolidated statement of operations we originally reported for the three and nine months ended&#160;September 30, 2020 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zcc869176fe1c47c983c609f000d19db2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(11,321&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8,893&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,428&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Loss before income tax expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(40,443&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8,893&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(31,550&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Income tax expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,648&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,416&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(5,064&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(43,091&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,477&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(36,614&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(30,944&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,477&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(24,467&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic and diluted net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.22&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.04&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.18&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2f5855359501402b9fbfba586eb0b9b9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(33,484&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,408&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(7,076&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Loss before income tax benefit (expense)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(146,387&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,408&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(119,979&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Income tax benefit (expense)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,047&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(5,124&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(4,077&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(145,340&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,284&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(124,056&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(111,015&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,284&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(89,731&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic and diluted net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.80&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.16&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.64&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Under ASU 2020-06, our revised interest expense is lower because we are no longer recording non-cash interest expense related to a debt discount. This decrease was partially offset by the increase in interest expense related to the amortization of debt issuance costs because we no longer allocate a portion of our debt issuance costs to stockholders&#x2019; equity at issuance. Instead, the entire debt issuance costs were recorded as a contra-liability on our condensed consolidated balance sheet at issuance and we are amortizing them over the contractual term using an updated effective interest rate. Our updated effective interest rates for our 1% Notes and 0.125% Notes were 1.4 percent and 0.5 percent, respectively.&lt;/div&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following tables summarize the adjustments we made to our condensed consolidated statements of stockholders&#x2019; equity we originally reported at December 31, 2020 and 2019 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z5aeb3ee1a3364575838aa3c32258a09d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,113,646&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,127&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,895,519&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,249,368&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;118,062&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,131,306&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total stockholders&#x2019; equity&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;843,347&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(100,065&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;743,282&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zcfa210d3757e446eba979459832059ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2019&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,203,778&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,128&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,985,650&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(707,534&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;111,039&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(596,495&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total stockholders&#x2019; equity&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,684,547&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(107,089&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,577,458&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the adjustments we made to the condensed consolidated balance sheet we originally reported at December 31, 2020 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z61ca4ada3097492594c0401d2ef05dfb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1 percent convertible senior notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;293,161&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,648&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;308,809&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.125 percent convertible senior notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;455,719&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;84,417&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;540,136&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,113,646&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,127&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,895,519&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,249,368&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;118,062&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,131,306&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following tables summarize the adjustments we made to the condensed consolidated statement of operations we originally reported for the three and nine months ended&#160;September 30, 2020 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zcc869176fe1c47c983c609f000d19db2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(11,321&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8,893&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,428&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Loss before income tax expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(40,443&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8,893&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(31,550&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Income tax expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,648&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,416&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(5,064&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(43,091&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,477&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(36,614&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(30,944&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,477&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(24,467&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic and diluted net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.22&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.04&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.18&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2f5855359501402b9fbfba586eb0b9b9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended September 30, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(33,484&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,408&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(7,076&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Loss before income tax benefit (expense)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(146,387&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,408&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(119,979&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Income tax benefit (expense)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,047&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(5,124&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(4,077&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(145,340&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,284&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(124,056&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(111,015&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,284&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(89,731&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Basic and diluted net loss per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.80&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.16&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.64&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following tables summarize the adjustments we made to our condensed consolidated statements of stockholders&#x2019; equity we originally reported at December 31, 2020 and 2019 to adopt ASU 2020-06 (in thousands):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z5aeb3ee1a3364575838aa3c32258a09d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,113,646&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,127&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,895,519&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,249,368&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;118,062&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,131,306&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total stockholders&#x2019; equity&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;843,347&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(100,065&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;743,282&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zcfa210d3757e446eba979459832059ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2019&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Previously&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Reported&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;ASU 2020-06&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Adjustment&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;As Revised&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Additional paid-in-capital&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,203,778&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(218,128&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,985,650&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Accumulated deficit&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(707,534&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;111,039&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(596,495&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total stockholders&#x2019; equity&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,684,547&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(107,089&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,577,458&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
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&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We measure stock-based compensation expense for equity-classified awards, principally related to stock options, RSUs, PRSUs and stock purchase rights under our ESPP based on the estimated fair value of the award on the date of grant. We recognize the value of the portion of the award that we ultimately expect to vest as stock-based compensation expense over the requisite service period in our condensed consolidated statements of operations. We reduce stock-based compensation expense for estimated forfeitures at the time of grant and revise in subsequent periods if actual forfeitures differ from those estimates. We use the Black-Scholes model to estimate the fair value of stock options granted and stock purchase rights under our ESPP.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;On the grant date, we use our stock price and assumptions regarding a number of variables to determine the estimated fair value of stock-based payment awards. These variables include, but are not limited to, our expected stock price volatility over the term of the awards, and actual and projected employee stock option exercise behaviors.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognize compensation expense for stock options granted, RSUs, PRSUs and stock purchase rights under the ESPP using the accelerated multiple-option approach. Under the accelerated multiple-option approach (also known as the graded-vesting method), we recognize compensation expense over the requisite service period for each separately vesting tranche of the award as though the award were in substance multiple awards, which results in the expense being front-loaded over the vesting period.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In December 2020, we amended and restated the Akcea 2015 equity plan, including renaming the plan as the Ionis Pharmaceuticals, Inc. 2020 Equity Incentive Plan, or 2020 Plan. As a result, all employees are now under an Ionis stock plan and subject to the same Black-Scholes assumptions.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;For the nine months ended&#160;September 30, 2021 and 2020, we used the following weighted-average assumptions in our Black-Scholes calculations:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Employee Stock Options:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z765fe70c9b264d2b97702ae8f890e897" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Risk-free interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dividend yield&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Volatility&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;54.3&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;58.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expected life&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4.9 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4.7 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Ionis Board of Director Stock Options:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2ab3e6b5b99349ab8dafa3e9b4ad99ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Risk-free interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dividend yield&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Volatility&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;55.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;57.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expected life&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7.3 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6.7 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;ESPP:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z4775cbab309e4daebc6523679daa2ac5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Risk-free interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dividend yield&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Volatility&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;42.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;47.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expected life&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6 months&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6 months&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;RSU&#x2019;s:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The fair value of RSUs is based on the market price of our common stock on the date of grant. The RSUs we have granted to employees vest annually over a four-year period. The RSUs we granted to our board of directors prior to June 2020 vest annually over a four-year period. RSUs granted after June 2020 to our board of directors fully vest after one year. The weighted-average grant date fair value of RSUs granted to employees and our board of directors for the nine months ended&#160;September 30, 2021 was $59.15 and $39.42 per share, respectively.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;PRSU&#x2019;s:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Beginning in 2020, we added PRSU awards to the compensation for our Chief Executive Officer, Dr. Brett Monia. Under the terms of the grants, &lt;span style="-sec-ix-hidden:Fact_3ea144f70898401099a1731ad0c7e39f"&gt;&lt;span style="-sec-ix-hidden:Fact_b531c97d5a394e3f8a5454ecd82ddb93"&gt;&lt;span style="-sec-ix-hidden:Fact_b2b6dbe875764e78b9cce0b8464216dd"&gt;one third&lt;/span&gt;&lt;/span&gt;&lt;/span&gt; of the PRSUs may vest at the end of three separate performance periods spread over the three years following the date of grant (i.e., the one-year period commencing on the date of grant and ending on the first anniversary of the date of grant; the two-year period commencing on the date of grant and ending on the second anniversary of the date of grant; and the three-year period commencing on the date of grant and ending on the third anniversary of the date of grant) based on our relative total shareholder return, or TSR, as compared to a peer group of companies, and as measured, in each case, at the end of the applicable performance period. Under the terms of the grants no number of PRSUs is guaranteed to vest and the actual number of PRSUs that will vest at the end of each performance period may be anywhere from zero percentto 150 percent of the target number depending on our relative TSR.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We determined the fair value of Dr. Monia&#x2019;s PRSUs using a Monte Carlo model because the performance target is based on our relative TSR, which represents a market condition. We are recognizing the grant date fair value of these awards as stock-based compensation expense using the accelerated multiple-option approach over the vesting period. The weighted-average grant date fair value of PRSUs granted to Dr. Monia for the nine months ended&#160;September 30, 2021 was $77.17 per share.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes stock-based compensation expense for the three and nine months ended&#160;September 30, 2021 and 2020 (in thousands).&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z80699f3bd74640d8abd3ddb51f6852b2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"/&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Cost of sales&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;111&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;315&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;293&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;902&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;23,332&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;25,359&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;71,979&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;76,931&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7,094&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;20,171&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,147&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;57,244&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total non-cash stock-based compensation expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;30,537&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;45,845&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98,419&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;135,077&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As of September 30, 2021, total unrecognized estimated non-cash stock-based compensation expense related to non-vested stock options, RSUs and PRSUs was $65.3 million, $72.2 million and $2.5 million, respectively. Our actual expenses may differ from these estimates because we will adjust our unrecognized non-cash stock-based compensation expense for future forfeitures. We expect to recognize the cost of non-cash stock-based compensation expense related to our non-vested stock options, RSUs and PRSUs over a weighted average amortization period of 1.2 years, 1.4 years and 1.2 years, respectively.&lt;/div&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Employee Stock Options:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z765fe70c9b264d2b97702ae8f890e897" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Risk-free interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dividend yield&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Volatility&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;54.3&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;58.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expected life&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4.9 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4.7 years&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Ionis Board of Director Stock Options:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z2ab3e6b5b99349ab8dafa3e9b4ad99ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Risk-free interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Dividend yield&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;ESPP:&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z4775cbab309e4daebc6523679daa2ac5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.0&lt;/div&gt;&lt;/td&gt;
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  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Volatility&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;42.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;47.9&lt;/div&gt;&lt;/td&gt;
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  &lt;tr&gt;
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    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes stock-based compensation expense for the three and nine months ended&#160;September 30, 2021 and 2020 (in thousands).&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z80699f3bd74640d8abd3ddb51f6852b2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"/&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Cost of sales&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;111&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;315&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;293&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;902&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;23,332&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;25,359&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;71,979&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;76,931&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7,094&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;20,171&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26,147&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;57,244&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total non-cash stock-based compensation expense&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;30,537&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;45,845&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98,419&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Impact of Recently Issued Accounting Standards&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As disclosed in the &#x201c;Convertible Debt&#x201d; policy above within this footnote, we adopted the simplified accounting for convertible debt instrument guidance (ASU 2020-06) on January 1, 2021. Refer to the section above for the impact of adoption. We do not expect any other recently issued accounting standards to have a material impact to our financial results.&lt;/div&gt;
</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
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&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;3.&#160; Investments&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the contract maturity of the available-for-sale securities we held as of September 30, 2021:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z7875b171477b495f9658297c72093cc6" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-indent: 0pt;"&gt;One year&lt;/span&gt; or less&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;58&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;After &lt;span style="text-indent: 0pt;"&gt;one year&lt;/span&gt; but within &lt;span style="text-indent: 0pt;"&gt;two years&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;After &lt;span style="text-indent: 0pt;"&gt;two years&lt;/span&gt; but within &lt;span style="text-indent: 0pt;"&gt;&lt;span style="-sec-ix-hidden:Fact_f12cc57cfa544d218ac6c26f9aae5797"&gt;three and a half years&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 88%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;100&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As illustrated above, at September 30, 2021, 84 percent of our available-for-sale securities had a maturity of less than two years.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;All of our available-for-sale securities are available to us for use in our current operations. As a result, we categorize all of these securities as current assets even though the stated maturity of some individual securities may be one year or more beyond the balance sheet date.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;We invest in available-for-sale securities&lt;/span&gt; with strong credit ratings and an investment grade rating at or above A-1, P-1 or F-1 by Standard &amp;amp; Poor&#x2019;s, or S&amp;amp;P, Moody&#x2019;s or Fitch, respectively.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;At September 30, 2021, we had an ownership interest of less than 20 percent in seven private companies and three public companies with which we conduct business. The privately held companies are Aro Biotherapeutics, Atlantic Pharmaceuticals Limited, Dynacure SAS, Empirico, Inc., Flamingo Therapeutics BV, YourBio Health, Inc. and Suzhou-Ribo Life Science Co, Ltd. The publicly traded companies are Antisense Therapeutics Ltd., Bicycle and ProQR.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following is a summary of our investments (in thousands):&lt;/div&gt;

&lt;div style="text-align: left;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; &lt;/span&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z3aa42bc635cb44af8030deda27154230" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Gross Unrealized&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Estimated&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;&lt;span style="text-indent: 0pt;"&gt;September 30, 2021&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"&gt;Cost &lt;/span&gt;(1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Gains&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Losses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Fair Value&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Available-for-sale securities:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;447,173&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,338&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(50&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;448,461&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;83,630&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;96&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;83,719&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;89,267&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;10&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;89,275&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;141,161&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;103&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(30&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;141,234&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,028&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,026&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total securities with a maturity of one year or less&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;766,259&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,547&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(91&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;767,715&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;366,907&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,181&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(475&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;367,613&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;73,028&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(120&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;72,909&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98,499&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;245&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(88&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98,656&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;41,167&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(65&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;41,110&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,169&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(26&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,143&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total securities with a maturity of more than one year&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;585,770&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,435&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(774&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;586,431&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total available-for-sale securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,352,029&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,982&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(865&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,354,146&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Equity securities:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities included in other current assets (3)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,897&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,935&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(663&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13,169&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities included in deposits and other assets (4)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,615&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16,707&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;32,322&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;27,512&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;18,642&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(663&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;45,491&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total available-for-sale and equity securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,379,541&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,624&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,528&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,399,637&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z33e9b010a5e2449c941f1c3d8b9c3093" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Gross Unrealized&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Estimated&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;&lt;span style="text-indent: 0pt;"&gt;December 31, 2020&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"&gt;Cost &lt;/span&gt;(1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Gains&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Losses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Fair Value&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Available-for-sale securities:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;514,182&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,194&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(41&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;516,335&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;94,234&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;354&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;94,586&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;307,576&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;233&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;307,800&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;104,271&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;196&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(12&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;104,455&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,191&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,184&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total securities with a maturity of one year or less&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,025,454&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,977&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(71&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,028,360&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;325,079&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,941&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(40&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;329,980&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;80,099&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;185&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;80,275&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;50,318&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;383&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;50,697&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;31,779&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;91&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(16&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;31,854&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,041&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,041&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total securities with a maturity of more than one year&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;488,316&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,600&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(69&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;493,847&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total available-for-sale securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,513,770&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8,577&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(140&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,522,207&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Equity securities:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities included in other current assets (3)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,712&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,681&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,031&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities included in deposits and other assets (4)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,062&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,938&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;31,000&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;19,774&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,938&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,681&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;33,031&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total available-for-sale and equity securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,533,544&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;24,515&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,821&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,555,238&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z3af82d0b45504dc9983904fc4cb00fa4" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We hold our available-for-sale securities at amortized cost.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zd9e1b1908ec84f56ae4070a0957574fa" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Includes investments classified as cash equivalents on our condensed consolidated balance sheet.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z8cb4ac74b1864ccbac9a78ae57086c95" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(3)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our equity securities included in other current assets consisted of our investments in two publicly traded companies, ProQR and Bicycle, which we classify as Level 1 and Level 3 investments, respectively. We recognize publicly traded equity securities at fair value. In the nine months ended September 30, 2021, we recognized a $1.9 million unrealized gain and a $0.7 million unrealized loss on our condensed consolidated statement of operations related to our investments in Bicycle and ProQR, respectively. In the nine months ended September 30, 2020, our equity securities included in other current assets only consisted of ProQR.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z94898b868e5c48bba965b5b41b92fc37" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(4)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Our equity securities included in deposits and other assets consisted of our investments in privately held companies. We recognize our private company equity securities at&lt;/span&gt; cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;.&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;The following is a summary of our investments we consider to be temporarily impaired at &lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; (in thousands, except for number of investments). &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;All of these investments have less than 12 months of temporary impairment.&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; We believe that the decline in value of these securities is temporary and is primarily related to the change in market interest rates since purchase. We believe it is more likely than not that we will be able to hold our debt securities to maturity. Therefore, we anticipate full recovery of our debt securities&#x2019; amortized cost basis at maturity.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z1617be40885346a092e44a5e8a925db5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Number of&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Investments&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Estimated&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Fair Value&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Unrealized&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Losses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;158&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;334,828&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(525&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;103,460&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(127&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;10&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;75,009&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(90&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;432&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;123,489&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(95&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;3&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,168&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(28&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total temporarily impaired securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;616&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;647,954&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(865&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
</us-gaap:InvestmentTextBlock>
    <us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock
      contextRef="c20210101to20210930"
      id="Text_88180c6e643a4b7eb3d2e8e8e7abb05a">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the contract maturity of the available-for-sale securities we held as of September 30, 2021:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z7875b171477b495f9658297c72093cc6" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-indent: 0pt;"&gt;One year&lt;/span&gt; or less&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;58&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;After &lt;span style="text-indent: 0pt;"&gt;one year&lt;/span&gt; but within &lt;span style="text-indent: 0pt;"&gt;two years&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;26&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;After &lt;span style="text-indent: 0pt;"&gt;two years&lt;/span&gt; but within &lt;span style="text-indent: 0pt;"&gt;&lt;span style="-sec-ix-hidden:Fact_f12cc57cfa544d218ac6c26f9aae5797"&gt;three and a half years&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 88%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 46.8pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;100&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
</us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock>
    <ions:MaximumContractMaturityPeriodRange1
      contextRef="c20210101to20210930"
      id="Fact_4b3282e6abbf4694b90d56a12cb3a78d">P1Y</ions:MaximumContractMaturityPeriodRange1>
    <ions:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage
      contextRef="c20210930"
      decimals="2"
      id="Fact_26a36804df4340729bec0b2f463acda4"
      unitRef="U003">0.58</ions:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage>
    <ions:MaximumContractMaturityPeriodRange1
      contextRef="c20210101to20210930"
      id="Fact_3bd993e525784a5398b297b7856fe228">P1Y</ions:MaximumContractMaturityPeriodRange1>
    <ions:MaximumContractMaturityPeriodRange2
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      id="Fact_beb1ea76eb4a4045aff26b90fc4a4ee3">P2Y</ions:MaximumContractMaturityPeriodRange2>
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following is a summary of our investments (in thousands):&lt;/div&gt;

&lt;div style="text-align: left;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; &lt;/span&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z3aa42bc635cb44af8030deda27154230" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Gross Unrealized&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Estimated&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;&lt;span style="text-indent: 0pt;"&gt;September 30, 2021&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"&gt;Cost &lt;/span&gt;(1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Gains&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Losses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Fair Value&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Available-for-sale securities:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;447,173&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,338&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(50&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;448,461&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;83,630&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;96&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;83,719&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;89,267&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;10&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;89,275&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;141,161&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;103&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(30&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;141,234&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,028&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,026&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total securities with a maturity of one year or less&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;766,259&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,547&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(91&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;767,715&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;366,907&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,181&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(475&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;367,613&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;73,028&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(120&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;72,909&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98,499&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;245&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(88&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98,656&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;41,167&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(65&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;41,110&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,169&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(26&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,143&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total securities with a maturity of more than one year&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;585,770&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,435&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(774&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;586,431&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total available-for-sale securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,352,029&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,982&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(865&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,354,146&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Equity securities:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities included in other current assets (3)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,897&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,935&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(663&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13,169&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities included in deposits and other assets (4)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,615&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;16,707&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;32,322&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;27,512&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;18,642&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(663&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;45,491&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total available-for-sale and equity securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,379,541&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;21,624&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1,528&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,399,637&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z33e9b010a5e2449c941f1c3d8b9c3093" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Gross Unrealized&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Estimated&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;&lt;span style="text-indent: 0pt;"&gt;December 31, 2020&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"&gt;Cost &lt;/span&gt;(1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Gains&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Losses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Fair Value&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Available-for-sale securities:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;514,182&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,194&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(41&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;516,335&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;94,234&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;354&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;94,586&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;307,576&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;233&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;307,800&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;104,271&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;196&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(12&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;104,455&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,191&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,184&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total securities with a maturity of one year or less&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,025,454&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,977&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(71&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,028,360&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;325,079&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,941&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(40&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;329,980&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;80,099&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;185&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;80,275&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;50,318&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;383&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;50,697&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;31,779&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;91&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(16&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;31,854&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,041&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,041&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total securities with a maturity of more than one year&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;488,316&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5,600&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(69&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;493,847&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total available-for-sale securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,513,770&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;8,577&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(140&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,522,207&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="text-decoration: underline;"&gt;Equity securities:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities included in other current assets (3)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,712&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,681&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,031&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities included in deposits and other assets (4)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,062&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,938&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;31,000&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total equity securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;19,774&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;15,938&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,681&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;33,031&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total available-for-sale and equity securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,533,544&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;24,515&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2,821&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,555,238&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z3af82d0b45504dc9983904fc4cb00fa4" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We hold our available-for-sale securities at amortized cost.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zd9e1b1908ec84f56ae4070a0957574fa" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: left;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Includes investments classified as cash equivalents on our condensed consolidated balance sheet.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

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    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our equity securities included in other current assets consisted of our investments in two publicly traded companies, ProQR and Bicycle, which we classify as Level 1 and Level 3 investments, respectively. We recognize publicly traded equity securities at fair value. In the nine months ended September 30, 2021, we recognized a $1.9 million unrealized gain and a $0.7 million unrealized loss on our condensed consolidated statement of operations related to our investments in Bicycle and ProQR, respectively. In the nine months ended September 30, 2020, our equity securities included in other current assets only consisted of ProQR.&lt;/div&gt;&lt;/td&gt;
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&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;The following is a summary of our investments we consider to be temporarily impaired at &lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; (in thousands, except for number of investments). &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;All of these investments have less than 12 months of temporary impairment.&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; We believe that the decline in value of these securities is temporary and is primarily related to the change in market interest rates since purchase. We believe it is more likely than not that we will be able to hold our debt securities to maturity. Therefore, we anticipate full recovery of our debt securities&#x2019; amortized cost basis at maturity.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z1617be40885346a092e44a5e8a925db5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Number of&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Investments&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Estimated&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Fair Value&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Unrealized&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Losses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;158&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;334,828&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(525&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;103,460&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(127&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;10&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;75,009&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(90&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;432&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;123,489&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(95&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;3&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,168&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(28&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
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    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;616&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;647,954&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(865&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
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&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;4.&#160; Fair Value Measurements&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We use a three-tier fair value hierarchy to prioritize the inputs used in our fair value measurements. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical assets, which includes our money market funds and treasury securities classified as available-for-sale securities and our investment in equity securities in publicly held biotechnology companies; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable, which includes our fixed income securities and commercial paper classified as available-for-sale securities; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring us to develop our own assumptions. We classify most of our securities as Level 2. We obtain the fair value of our Level 2 investments from our custodian bank or from a professional pricing service. We validate the fair value of our Level 2 investments by understanding the pricing model used by the custodian banks or professional pricing service provider and comparing that fair value to the fair value based on observable market prices.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;The following tables present the major security types we held at &lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and &lt;/span&gt;December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; that we regularly measure and carry at fair value. As of &lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;our Bicycle investment was subject to trading restrictions that extend to the third quarter of 2022; as a result, we included a lack of marketability discount in valuing this investment, which is a Level 3 input. &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;As of &lt;/span&gt;December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, &lt;/span&gt;we did not have any investments that we valued using Level 3 inputs&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;. The following tables segregate each security type by the level within the fair value hierarchy of the valuation techniques we utilized to determine the respective securities&#x2019; fair value (in thousands):&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zb2c71c91fd2146f8929831120f1506ea" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 8pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;At&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Quoted Prices in&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Active Markets&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Significant Other&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Observable Inputs&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Significant&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Unobservable Inputs&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 3)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Cash equivalents (1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;545,339&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;545,339&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;816,074&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;816,074&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;156,628&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;156,628&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;187,931&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;187,931&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;182,344&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;182,344&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities (2)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,169&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,169&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Investment in Bicycle Therapeutics plc (3)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,120&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,120&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Investment in ProQR Therapeutics N.V. (3)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,049&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,049&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -8.9pt; margin-left: 22.55pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,912,654&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;737,319&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,166,215&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,120&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z8685d6d12380471680284300fc5d34af" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 8pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;At&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Quoted Prices in&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Active Markets&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Significant Other&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Observable Inputs&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Cash equivalents (1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;221,125&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;221,125&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities (4)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;846,315&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;846,315&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;174,861&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;174,861&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury (5)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;358,497&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;358,497&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;136,309&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;136,309&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities (2)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,225&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,225&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Investment in ProQR Therapeutics N.V. (3)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,031&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,031&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -8.9pt; margin-left: 22.55pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,745,363&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;581,653&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,163,710&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following footnotes reference lines on our condensed consolidated balance sheet:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z08636678ca3744a5a0b54544580f25a2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Included in cash and cash equivalents on our condensed consolidated balance sheet.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2ed426559d364394a23d648cafbc5731" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Included in short-term investments.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z3bbfd84abaf444c49c684502f472abc2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(3)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Included in other current assets on our condensed consolidated balance sheet.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zb7fb400c39394709977a3bad9f57b0f5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(4)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$10.0 million was included in cash and cash equivalents, with the difference included in short-term investments.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z1b70c638a13043e8b0c38074ee3b1eb2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(5)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$17.5 million included in cash and cash equivalents on our condensed consolidated balance sheet, with the difference included in short-term investments on our condensed consolidated balance sheet.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="text-align: left; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Convertible Notes&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our 1% Notes, 0.125% Notes and 0% Notes had a fair value of $61.9 million, $504.3 million and $581.4 million at September 30, 2021, respectively. We determine the fair value of our notes based on quoted market prices for these notes, which are Level 2 measurements because the notes do not trade regularly.&lt;/div&gt;
</us-gaap:FairValueDisclosuresTextBlock>
    <us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock
      contextRef="c20210101to20210930"
      id="Text_4fcb23a6feef4ee98e2536dc2be3fd44">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;The following tables present the major security types we held at &lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; and &lt;/span&gt;December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; that we regularly measure and carry at fair value. As of &lt;/span&gt;September 30, 2021&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;our Bicycle investment was subject to trading restrictions that extend to the third quarter of 2022; as a result, we included a lack of marketability discount in valuing this investment, which is a Level 3 input. &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;As of &lt;/span&gt;December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, &lt;/span&gt;we did not have any investments that we valued using Level 3 inputs&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;. The following tables segregate each security type by the level within the fair value hierarchy of the valuation techniques we utilized to determine the respective securities&#x2019; fair value (in thousands):&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zb2c71c91fd2146f8929831120f1506ea" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 8pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;At&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Quoted Prices in&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Active Markets&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Significant Other&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Observable Inputs&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Significant&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Unobservable Inputs&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 3)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Cash equivalents (1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;545,339&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;545,339&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;816,074&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;816,074&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;156,628&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;156,628&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;187,931&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;187,931&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;182,344&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;182,344&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities (2)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,169&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11,169&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Investment in Bicycle Therapeutics plc (3)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,120&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,120&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Investment in ProQR Therapeutics N.V. (3)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,049&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;4,049&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -8.9pt; margin-left: 22.55pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,912,654&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;737,319&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,166,215&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9,120&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z8685d6d12380471680284300fc5d34af" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 8pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;At&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;December 31, 2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Quoted Prices in&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Active Markets&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Significant Other&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Observable Inputs&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;(Level 2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Cash equivalents (1)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;221,125&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;221,125&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Corporate debt securities (4)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;846,315&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;846,315&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by U.S. government agencies (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;174,861&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;174,861&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by the U.S. Treasury (5)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;358,497&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;358,497&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Debt securities issued by states of the U.S. and political subdivisions of the states (2)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;136,309&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;136,309&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Other municipal debt securities (2)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,225&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6,225&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Investment in ProQR Therapeutics N.V. (3)&lt;/div&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,031&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2,031&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 64%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -8.9pt; margin-left: 22.55pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,745,363&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;581,653&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1,163,710&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following footnotes reference lines on our condensed consolidated balance sheet:&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z08636678ca3744a5a0b54544580f25a2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Included in cash and cash equivalents on our condensed consolidated balance sheet.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2ed426559d364394a23d648cafbc5731" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(2)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Included in short-term investments.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z3bbfd84abaf444c49c684502f472abc2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(3)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Included in other current assets on our condensed consolidated balance sheet.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zb7fb400c39394709977a3bad9f57b0f5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(4)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$10.0 million was included in cash and cash equivalents, with the difference included in short-term investments.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z1b70c638a13043e8b0c38074ee3b1eb2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;"&gt;
  &lt;tr&gt;
    &lt;td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(5)&lt;/td&gt;
    &lt;td style="width: auto; vertical-align: top; text-align: justify;"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$17.5 million included in cash and cash equivalents on our condensed consolidated balance sheet, with the difference included in short-term investments on our condensed consolidated balance sheet.&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
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&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;5.&#160; Collaborative Arrangements and Licensing Agreements&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;Below, we have included our Biogen and Novartis collaborations, which are our only collaborations with substantive changes during &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;2021&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; from those included in Note 6 of our audited financial statements included in our Annual Report on Form 10-K for the year ended &lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;December 31, 2020&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Strategic Partnership&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Biogen&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We have several strategic collaborations with Biogen focused on using antisense technology to advance the treatment of neurological disorders. These collaborations combine our expertise in creating antisense medicines with Biogen&#x2019;s expertise in developing therapies for neurological disorders. We developed and licensed to Biogen SPINRAZA, our approved medicine to treat people with spinal muscular atrophy, or SMA. We and Biogen are currently developing eight investigational medicines to treat neurodegenerative diseases under these collaborations, including medicines in development to treat people with ALS, Alzheimer&#x2019;s disease&lt;sub&gt;&#160;&lt;/sub&gt;and Parkinson&#x2019;s disease. In addition to these medicines, our collaborations with Biogen include a substantial research pipeline that addresses a broad range of neurological diseases. From inception through September 30, 2021, we have received more than $3.0 billion from our Biogen collaborations.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;During the three and nine months ended September 30, 2021 and 2020, we earned the following revenue from our relationship with Biogen (in millions, except percentage amounts):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z315a39dc03974fd4a97d17595dd4ee4d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -27pt; margin-left: 27pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;SPINRAZA royalties (commercial revenue)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;66.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;74.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;198.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;211.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;R&amp;amp;D revenue&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;17.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;51.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;63.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 27pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total revenue from our relationship with Biogen&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;84.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;125.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;262.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;310.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 27.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Percentage of total revenue&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;63&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;78&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;71&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;71&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Our condensed consolidated balance sheet at September 30, 2021 and December 31, 2020&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;&#160;&lt;/span&gt;included deferred revenue of $412.5 million and $465.8 million, respectively, related to our relationship with Biogen.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;During the first nine months of 2021, we did not have any changes to our performance obligations, transaction price or the timing in which we expect to recognize revenue under our Biogen collaborations.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In April 2021, we earned a $10 million milestone payment from Biogen when Biogen advanced ION541, an investigational medicine targeting ATXN2 to treat patients with ALS. We recognized the milestone payment in full in the second quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment. We will achieve the next payment of $8 million if Biogen advances one of the medicines under our 2013 strategic neurology collaboration.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Research, Development and Commercialization Partner&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Novartis&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In January 2017, we initiated a collaboration with Novartis to develop and commercialize pelacarsen. In February 2019, Novartis licensed pelacarsen. Novartis is responsible for conducting and funding future development and regulatory activities for pelacarsen, including a global Phase 3 cardiovascular outcomes study that Novartis initiated in the fourth quarter 2019. In connection with Novartis&#x2019; license of pelacarsen, we and Novartis established a more definitive framework under which the companies would negotiate the co-commercialization of pelacarsen in selected markets. Included in this framework is an option by which Novartis could solely commercialize pelacarsen in exchange for Novartis paying us increased sales milestone payments based on sales of pelacarsen. &lt;/span&gt;From inception through September 30, 2021, we have received $425 million from our Novartis collaboration.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In August 2021, we earned a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We recognized the milestone payment in full in the third quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment. We will achieve the next payment of up to $75 million if Novartis advances regulatory activities for pelacarsen.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Technology Enhancement Collaboration&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;"&gt;Bicycle License Agreement&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In December 2020, we entered into a collaboration agreement with Bicycle and obtained an option to license its peptide technology to potentially increase the delivery capabilities of our LIgand Conjugated Antisense, or LICA, medicines. In July 2021, we paid $42 million when we exercised our option to license Bicycle&#x2019;s technology, which included an equity investment in Bicycle. As part of our stock purchase, we entered into a lockup agreement with Bicycle that restricts our ability to trade our Bicycle shares for one year. In the third quarter of 2021, we recorded a $7.2 million equity investment for the shares we received in Bicycle. We recognized the remaining $34.8 million as R&amp;amp;D expense in the third quarter of 2021. From inception through September 30, 2021, we have paid $45 million under our collaboration agreement with Bicycle.&lt;/div&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;During the three and nine months ended September 30, 2021 and 2020, we earned the following revenue from our relationship with Biogen (in millions, except percentage amounts):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z315a39dc03974fd4a97d17595dd4ee4d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30,&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;2020&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -27pt; margin-left: 27pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;SPINRAZA royalties (commercial revenue)&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;66.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;74.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;198.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;211.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;R&amp;amp;D revenue&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;17.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;51.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;63.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;98.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 27pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total revenue from our relationship with Biogen&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;84.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;125.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;262.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;310.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: bottom; width: 52%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: -9pt; margin-left: 27.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Percentage of total revenue&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;63&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;%&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
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&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;6. Convertible Debt&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;0 Percent&lt;/span&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Convertible Senior Notes and Call Spread&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In April 2021, we completed a $632.5 million offering of convertible senior notes. We used a portion of the net proceeds from the issuance of the 0% Notes to repurchase $247.9 million in principal of our 1% Notes for $257.0 million.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;At September 30, 2021, we had the following &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;0%&lt;/span&gt; Notes outstanding (amounts in millions except interest rate and price per share data):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z3b52a1ba8b4145968e1b88032485ff68" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;0%&lt;/span&gt; Notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Outstanding principal balance&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;632.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
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    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unamortized debt issuance costs&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;14.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Maturity date&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="-sec-ix-hidden:Fact_109f9369bddf4793b7c1ba8f66869fde"&gt;April 2026&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Conversion price per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;57.84&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective conversion price per share with call spread&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;76.39&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total shares of common stock subject to conversion&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;10.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In conjunction with the April 2021 offering, we entered into a call spread transaction, which was comprised of purchasing note hedges and selling warrants, to minimize the impact of potential economic dilution upon conversion of our 0% Notes by increasing the effective conversion price on our 0% Notes. We increased our effective conversion price to $76.39 with the same number of underlying shares as our 0% Notes. The call spread cost us $46.9 million, of which $136.7 million was for the note hedge purchase, offset by $89.8 million we received for selling the warrants. Similar to our 0% Notes, our note hedges are subject to adjustment. Additionally, our note hedges are exercisable upon conversion of the 0% Notes. The note hedges will expire upon maturity of the 0% Notes, or April 2026. The note hedges and warrants are separate transactions and are not part of the terms of our 0% Notes. The holders of the 0% Notes do not have any rights with respect to the note hedges and warrants.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recorded the amount we paid for the note hedges and the amount we received for the warrants in additional paid-in capital in our condensed consolidated balance sheet. See our Call Spread accounting policy in Note 2, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Significant Accounting Policies&lt;/span&gt;, in the Notes to the Condensed Consolidated Financial Statements. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#x2019; equity at each reporting period.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;0.125 Percent Convertible Senior Notes and Call Spread&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;At September 30, 2021, we had the following 0.125% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z935b910ae74347ea89d8185168cb25be" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;0.125% Notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Outstanding principal balance&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;548.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unamortized debt issuance costs&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Maturity date&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="-sec-ix-hidden:Fact_c5b254d960d242d380e7e1f35dc8b7ec"&gt;December 2024&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.125 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Conversion price per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;83.28&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective conversion price per share with call spread&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;123.38&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total shares of common stock subject to conversion&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;In conjunction with the issuance of our &lt;/span&gt;0.125%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes in December 2019, we entered into a call spread transaction, which was comprised of purchasing note hedges and selling warrants, to minimize the impact of potential economic dilution upon conversion of our &lt;/span&gt;0.125% Notes by increasing the effective conversion price on our 0.125% Notes&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;. We increased our effective conversion price to $&lt;/span&gt;123.38&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; with the same number of underlying shares as our &lt;/span&gt;0.125%&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; Notes. The call spread cost us $&lt;/span&gt;52.6&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million, of which $&lt;/span&gt;108.7&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million was for the note hedge purchase, offset by $&lt;/span&gt;56.1&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; million we received for selling the warrants. Similar to our &lt;/span&gt;0.125% Notes&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, our note hedges are subject to adjustment. Additionally, our note hedges are exercisable upon conversion of the &lt;/span&gt;0.125% Notes&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;. The note hedges will expire upon maturity of the &lt;/span&gt;0.125% Notes&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;, or December 2024. The note hedges and warrants are separate transactions and are not part of the terms of our &lt;/span&gt;0.125% Notes&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;. The holders of the &lt;/span&gt;0.125% Notes&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt; do not have any rights with respect to the note hedges and warrants.&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recorded the amount we paid for the note hedges and the amount we received for the warrants in additional paid-in capital in our condensed consolidated balance sheet. See our Call Spread accounting policy in Note 2, &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;"&gt;Significant Accounting Policies&lt;/span&gt;, in the Notes to the Condensed Consolidated Financial Statements. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#x2019; equity at each reporting period.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;1 Percent Convertible Senior Notes&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;At September 30, 2021, we had the following 1% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z7723d01c0e3041f2a71949bbf69f07ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;1% Notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Outstanding principal balance&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;62.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unamortized debt issuance costs&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.03&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Maturity date&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="-sec-ix-hidden:Fact_cca8f6878ebf4cc88a7c1b64303ba443"&gt;November 2021&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.4 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Conversion price per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;66.81&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total shares of common stock subject to conversion&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In April 2021, we repurchased $247.9 million in aggregate principal amount of our 1% Notes in privately negotiated transactions. As a result of the repurchase, we recognized an $8.6 million non-cash loss on early retirement of debt, reflecting the early retirement of a significant portion of our 1% Notes. The non-cash loss on the early retirement of our debt is the difference between the amount paid to retire our 1% Notes and the net carrying balance of the liability at the time that we retired the debt.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Other Terms of Convertible Senior Notes&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The 0%, 0.125% and 1% Notes are convertible under certain conditions, at the option of the note holders. We can settle conversions of the notes, at our election, in cash, shares of our common stock or a combination of both. We may not redeem the notes prior to maturity, and we do not have to provide a sinking fund for them. Holders of the notes may require us to purchase some or all of their notes upon the occurrence of certain fundamental changes, as set forth in the indentures governing the notes, at a purchase price equal to 100 percent of the principal amount of the notes to be purchased, plus any accrued and unpaid interest.&lt;/div&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;At September 30, 2021, we had the following &lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;0%&lt;/span&gt; Notes outstanding (amounts in millions except interest rate and price per share data):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

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  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;&lt;span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"&gt;0%&lt;/span&gt; Notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Outstanding principal balance&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;632.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unamortized debt issuance costs&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;14.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Maturity date&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="-sec-ix-hidden:Fact_109f9369bddf4793b7c1ba8f66869fde"&gt;April 2026&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Conversion price per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;57.84&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective conversion price per share with call spread&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;76.39&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total shares of common stock subject to conversion&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;10.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;At September 30, 2021, we had the following 0.125% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

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  &lt;tr&gt;
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    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;0.125% Notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Outstanding principal balance&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;548.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unamortized debt issuance costs&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7.1&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="-sec-ix-hidden:Fact_c5b254d960d242d380e7e1f35dc8b7ec"&gt;December 2024&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
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    &lt;td style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.125 percent&lt;/div&gt;&lt;/td&gt;
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    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective interest rate&lt;/div&gt;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Conversion price per share&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
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    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective conversion price per share with call spread&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;123.38&lt;/div&gt;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total shares of common stock subject to conversion&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6.6&lt;/div&gt;&lt;/td&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;At September 30, 2021, we had the following 1% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

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  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
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    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;1% Notes&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Outstanding principal balance&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;62.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Unamortized debt issuance costs&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.03&lt;/div&gt;&lt;/td&gt;
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    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Maturity date&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&lt;span style="-sec-ix-hidden:Fact_cca8f6878ebf4cc88a7c1b64303ba443"&gt;November 2021&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
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    &lt;td style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1 percent&lt;/div&gt;&lt;/td&gt;
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  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Effective interest rate&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.4 percent&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
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    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Conversion price per share&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;66.81&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;7. Severance and Retention Costs&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Akcea Merger&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As a result of the Akcea Merger in October 2020, we began recognizing severance and retention expenses in the fourth quarter of 2020. The following table summarizes our total estimated severance and retention expenses related to the Akcea Merger (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z5de3073085ac47a4b7f1a66274084b66" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Severance and&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Retention Expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total estimated expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;27.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expenses incurred from inception to September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;27.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Remaining estimated expenses to be recognized through October 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes our severance and retention expenses related to the Akcea Merger that we recognized during the three and nine months ended September 30, 2021 (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="ze5de025aab5946f4bbc66473886c29cf" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.3&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance and retention reserve amounts related to the Akcea Merger that we included in accrued compensation for the period indicated (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z7852ad7d2f1442659c724b929efdae2c" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Beginning balance as of January 1, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;14.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 16.7pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 16.7pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Reserve adjustments during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net amount expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts paid during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(20.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ending balance as of September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The reserve adjustments during the period primarily related to forfeitures of severance and retention payments as a result of employee terminations before they earned the amounts.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Restructured European Operations&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In December 2020, we entered into a distribution agreement with Sobi for TEGSEDI and WAYLIVRA in Europe. As a result, we restructured our European Operations, or Restructured European Operations. In the fourth quarter of 2020, we began recognizing severance and retention expenses related to our Restructured European Operations. The following table summarizes our total severance and retention expenses related to our Restructured European Operations (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z9be2de7500a0491aab6b3e3f46abbfc3" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Severance and&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Retention Expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total estimated expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;14.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expenses incurred from inception to September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;14.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Remaining estimated expenses to be recognized through October 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance and retention expenses related to our Restructured European Operations that we recognized during the three and nine months ended September 30, 2021 (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z62ae84ac4a404efaa62ebcc15aff9bae" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance and retention reserve amounts related to our Restructured European Operations that we included in accrued compensation for the period indicated (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z398b1996f59c4d46b612fc0f55986a86" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Beginning balance as of January 1, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;12.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 18.2pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 18.2pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Reserve adjustments during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net amount expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts paid during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(13.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ending balance as of September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The reserve adjustments during the period primarily related to tax expense adjustments.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"&gt;Restructured North American TEGSEDI Operations&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In April 2021, we entered into a distribution agreement with Sobi for TEGSEDI in North America. Under the terms of the distribution agreement, we will retain the marketing authorizations for TEGSEDI in the U.S. and Canada. We will continue to supply commercial product to Sobi and manage regulatory and manufacturing processes, as well as relationships with key opinion leaders. We will also continue to lead the TEGSEDI global commercial strategy. Sobi will otherwise have responsibility for commercializing TEGSEDI in the U.S. and Canada.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In connection with restructuring our North American TEGSEDI operations, or Restructured North American TEGSEDI Operations, we enacted a plan to reorganize our Akcea workforce in North America to better align with the needs of our business and to focus on our wholly owned pipeline.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance expenses related to our Restructured North American TEGSEDI Operations that we recognized during the second quarter of 2021 (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zef341a1ee1b841938437d2f593f97b1e" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;June 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2.3&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;We recognized all severance expenses related to our Restructured North American TEGSEDI Operations during the three months ended June 30, 2021.&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance reserve amounts related to our Restructured North American TEGSEDI Operations that we included in accrued compensation for the period indicated (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z0f09e5d288f64f2eab0b8cf3ba594c84" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Beginning balance as of January 1, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;&#x2014;&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts paid during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(9.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ending balance as of September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
</us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock>
    <us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock
      contextRef="c20210101to20210930_RestructuringCostAndReserveAxis_AkceaAcquisitionMember"
      id="Text_ba4d802303864f588dbee77c690cafb8">
&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;As a result of the Akcea Merger in October 2020, we began recognizing severance and retention expenses in the fourth quarter of 2020. The following table summarizes our total estimated severance and retention expenses related to the Akcea Merger (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z5de3073085ac47a4b7f1a66274084b66" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Severance and&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Retention Expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total estimated expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;27.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expenses incurred from inception to September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;27.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Remaining estimated expenses to be recognized through October 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes our severance and retention expenses related to the Akcea Merger that we recognized during the three and nine months ended September 30, 2021 (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="ze5de025aab5946f4bbc66473886c29cf" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.3&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;6.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.9&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance and retention reserve amounts related to the Akcea Merger that we included in accrued compensation for the period indicated (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z7852ad7d2f1442659c724b929efdae2c" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Beginning balance as of January 1, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;14.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 16.7pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;13.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 16.7pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Reserve adjustments during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(1.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net amount expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;11.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts paid during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(20.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ending balance as of September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;5.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;In December 2020, we entered into a distribution agreement with Sobi for TEGSEDI and WAYLIVRA in Europe. As a result, we restructured our European Operations, or Restructured European Operations. In the fourth quarter of 2020, we began recognizing severance and retention expenses related to our Restructured European Operations. The following table summarizes our total severance and retention expenses related to our Restructured European Operations (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z9be2de7500a0491aab6b3e3f46abbfc3" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Severance and&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Retention Expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total estimated expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;14.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Expenses incurred from inception to September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;14.0&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Remaining estimated expenses to be recognized through October 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance and retention expenses related to our Restructured European Operations that we recognized during the three and nine months ended September 30, 2021 (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z62ae84ac4a404efaa62ebcc15aff9bae" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.6&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance and retention reserve amounts related to our Restructured European Operations that we included in accrued compensation for the period indicated (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z398b1996f59c4d46b612fc0f55986a86" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Nine Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Beginning balance as of January 1, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;12.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 18.2pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2.5&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; text-indent: 18.2pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Reserve adjustments during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(0.8&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Net amount expensed during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;1.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts paid during the period&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(13.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ending balance as of September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;0.7&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance expenses related to our Restructured North American TEGSEDI Operations that we recognized during the second quarter of 2021 (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="zef341a1ee1b841938437d2f593f97b1e" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
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    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;Three Months Ended&lt;/div&gt;&lt;div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"&gt;June 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Research, development and patent expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;2.3&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Selling, general and administrative expenses&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;7.1&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Total&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9.4&lt;/div&gt;&lt;/td&gt;
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&lt;div style="display:none;"&gt;&lt;br/&gt;&lt;/div&gt;
&lt;div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;The following table summarizes the severance reserve amounts related to our Restructured North American TEGSEDI Operations that we included in accrued compensation for the period indicated (in millions):&lt;/div&gt;

&lt;div&gt;&lt;br/&gt;&lt;/div&gt;

&lt;table cellpadding="0" cellspacing="0" id="z0f09e5d288f64f2eab0b8cf3ba594c84" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;"&gt;
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    &lt;td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Beginning balance as of January 1, 2021&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;9.4&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"&gt;&#160;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Amounts paid during the period&lt;/div&gt;&lt;/td&gt;
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    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;(9.2&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;)&lt;/div&gt;&lt;/td&gt;
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    &lt;td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"&gt;&lt;div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;Ending balance as of September 30, 2021&lt;/div&gt;&lt;/td&gt;
    &lt;td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"&gt;&lt;div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"&gt;$&lt;/div&gt;&lt;/td&gt;
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504824398392">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Document and Entity Information - shares<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Oct. 27, 2021</div></th>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CoverAbstract', window );"><strong>Cover [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">10-Q<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentQuarterlyReport', window );">Document Quarterly Report</a></td>
<td class="text">true<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Sep. 30,  2021<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CurrentFiscalYearEndDate', window );">Current Fiscal Year End Date</a></td>
<td class="text">--12-31<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalYearFocus', window );">Document Fiscal Year Focus</a></td>
<td class="text">2021<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalPeriodFocus', window );">Document Fiscal Period Focus</a></td>
<td class="text">Q3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentTransitionReport', window );">Document Transition Report</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">Ionis Pharmaceuticals, Inc.<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000874015<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">000-19125<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">33-0336973<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">2855 Gazelle Court<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Carlsbad<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">CA<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">92010<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">760<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">931-9200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock, $.001 Par Value<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">IONS<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCurrentReportingStatus', window );">Entity Current Reporting Status</a></td>
<td class="text">Yes<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityInteractiveDataCurrent', window );">Entity Interactive Data Current</a></td>
<td class="text">Yes<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFilerCategory', window );">Entity Filer Category</a></td>
<td class="text">Large Accelerated Filer<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntitySmallBusiness', window );">Entity Small Business</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityShellCompany', window );">Entity Shell Company</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCommonStockSharesOutstanding', window );">Entity Common Stock, Shares Outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">141,210,015<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
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<td>dei_</td>
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<td>xbrli:booleanItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CoverAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td>xbrli:stringItemType</td>
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</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CurrentFiscalYearEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>End date of current fiscal year in the format --MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CurrentFiscalYearEndDate</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:gMonthDayItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentFiscalPeriodFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalPeriodFocus</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>dei:fiscalPeriodItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentFiscalYearFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalYearFocus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:gYearItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentQuarterlyReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as an quarterly report.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 10-Q<br> -Number 240<br> -Section 308<br> -Subsection a<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentQuarterlyReport</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentTransitionReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as a transition report.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Forms 10-K, 10-Q, 20-F<br> -Number 240<br> -Section 13<br> -Subsection a-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentTransitionReport</td>
</tr>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCurrentReportingStatus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCurrentReportingStatus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFilerCategory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFilerCategory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:filerCategoryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityInteractiveDataCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-T<br> -Number 232<br> -Section 405<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityInteractiveDataCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityShellCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityShellCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntitySmallBusiness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicates that the company is a Smaller Reporting Company (SRC).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntitySmallBusiness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>16
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504824754376">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrentAbstract', window );"><strong>Current assets:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 632,953<span></span>
</td>
<td class="nump">$ 397,664<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent', window );">Short-term investments</a></td>
<td class="nump">1,354,146<span></span>
</td>
<td class="nump">1,494,711<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerAssetNetCurrent', window );">Contracts receivable</a></td>
<td class="nump">9,068<span></span>
</td>
<td class="nump">76,204<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNet', window );">Inventories</a></td>
<td class="nump">22,930<span></span>
</td>
<td class="nump">21,965<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsCurrent', window );">Other current assets</a></td>
<td class="nump">136,643<span></span>
</td>
<td class="nump">140,163<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">2,155,740<span></span>
</td>
<td class="nump">2,130,707<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentNet', window );">Property, plant and equipment, net</a></td>
<td class="nump">180,144<span></span>
</td>
<td class="nump">181,077<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Patents, net</a></td>
<td class="nump">30,038<span></span>
</td>
<td class="nump">27,937<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsNoncurrent', window );">Deposits and other assets</a></td>
<td class="nump">48,971<span></span>
</td>
<td class="nump">50,034<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">2,414,893<span></span>
</td>
<td class="nump">2,389,755<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">8,357<span></span>
</td>
<td class="nump">17,199<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeRelatedLiabilitiesCurrent', window );">Accrued compensation</a></td>
<td class="nump">32,320<span></span>
</td>
<td class="nump">65,728<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedLiabilitiesCurrent', window );">Accrued liabilities</a></td>
<td class="nump">75,681<span></span>
</td>
<td class="nump">90,161<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedIncomeTaxesCurrent', window );">Income taxes payable</a></td>
<td class="nump">450<span></span>
</td>
<td class="nump">1,324<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtCurrent', window );">1 percent convertible senior notes, net</a></td>
<td class="nump">61,936<span></span>
</td>
<td class="nump">308,809<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_LongTermObligationsCurrent', window );">Current portion of long-term obligations</a></td>
<td class="nump">3,109<span></span>
</td>
<td class="nump">7,301<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityCurrent', window );">Current portion of deferred contract revenue</a></td>
<td class="nump">97,925<span></span>
</td>
<td class="nump">108,376<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">279,778<span></span>
</td>
<td class="nump">598,898<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityNoncurrent', window );">Long-term deferred contract revenue</a></td>
<td class="nump">362,887<span></span>
</td>
<td class="nump">424,046<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_LongTermObligationsNoncurrent', window );">Long-term obligations, less current portion</a></td>
<td class="nump">21,628<span></span>
</td>
<td class="nump">23,409<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermLoansFromBank', window );">Long-term mortgage debt</a></td>
<td class="nump">59,955<span></span>
</td>
<td class="nump">59,984<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">1,884,357<span></span>
</td>
<td class="nump">1,646,473<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityAbstract', window );"><strong>Stockholders' equity:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, $0.001 par value; 300,000,000 shares authorized, 141,184,026 and 140,365,594 shares issued and outstanding at September 30, 2021 (unaudited) and December 31, 2020, respectively</a></td>
<td class="nump">141<span></span>
</td>
<td class="nump">140<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapitalCommonStock', window );">Additional paid-in capital</a></td>
<td class="nump">1,942,348<span></span>
</td>
<td class="nump">1,895,519<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax', window );">Accumulated other comprehensive loss</a></td>
<td class="num">(27,437)<span></span>
</td>
<td class="num">(21,071)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(1,384,516)<span></span>
</td>
<td class="num">(1,131,306)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total stockholders' equity</a></td>
<td class="nump">530,536<span></span>
</td>
<td class="nump">743,282<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">Total liabilities and stockholders' equity</a></td>
<td class="nump">2,414,893<span></span>
</td>
<td class="nump">2,389,755<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember', window );">0 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtNoncurrent', window );">Convertible senior notes, net</a></td>
<td class="nump">618,341<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember', window );">0.125 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtNoncurrent', window );">Convertible senior notes, net</a></td>
<td class="nump">$ 541,768<span></span>
</td>
<td class="nump">$ 540,136<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_LongTermObligationsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of long-term debt, excluding convertible debt, and lease obligations, classified as current, and other current liabilities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_LongTermObligationsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_LongTermObligationsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of long-term debt and lease obligation, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_LongTermObligationsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedIncomeTaxesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(15)(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(15)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedIncomeTaxesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e637-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14A<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669686-108580<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e681-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdditionalPaidInCapitalCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdditionalPaidInCapitalCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI 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-Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(B))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -URI http://asc.fasb.org/extlink&amp;oid=123419778&amp;loc=d3e5710-111685<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 19: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (a)<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrentAbstract">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124258926&amp;loc=SL82898722-210454<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124260329&amp;loc=d3e26626-111562<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130533-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerAssetNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130532-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130532-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130531-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConvertibleDebtCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of the carrying value of long-term convertible debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. Convertible debt is a financial instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConvertibleDebtCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConvertibleDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConvertibleDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeRelatedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeRelatedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 926<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120154696&amp;loc=d3e54445-107959<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Liabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19-26)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124433192&amp;loc=SL2890621-112765<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (d)<br> -URI 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-Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Liabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(32))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesAndStockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124433192&amp;loc=SL2890621-112765<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI 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-Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 20: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermLoansFromBank">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(16)(a)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermLoansFromBank</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.8)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncurrent assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(14))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 360<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124429447&amp;loc=SL124453093-239630<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cumulative amount of the reporting entity's undistributed earnings or deficit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (g)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=122038336&amp;loc=d3e74512-122707<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityAbstract</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504929797512">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares<br></strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityAbstract', window );"><strong>Stockholders' equity:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value (in dollars per share)</a></td>
<td class="nump">$ 0.001<span></span>
</td>
<td class="nump">$ 0.001<span></span>
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</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesAuthorized', window );">Common stock, shares authorized (in shares)</a></td>
<td class="nump">300,000,000<span></span>
</td>
<td class="nump">300,000,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesIssued', window );">Common stock, shares issued (in shares)</a></td>
<td class="nump">141,184,026<span></span>
</td>
<td class="nump">140,365,594<span></span>
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<td class="nump">141,184,026<span></span>
</td>
<td class="nump">140,365,594<span></span>
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<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember', window );">0 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
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</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember', window );">0.125 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquityAbstract', window );"><strong>LIABILITIES AND STOCKHOLDERS' EQUITY</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember', window );">1 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquityAbstract', window );"><strong>LIABILITIES AND STOCKHOLDERS' EQUITY</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of common shares permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesAndStockholdersEquityAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<head>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504902366072">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)<br> shares in Thousands, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenuesAbstract', window );"><strong>Revenue:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">$ 133,093<span></span>
</td>
<td class="nump">$ 160,079<span></span>
</td>
<td class="nump">$ 370,450<span></span>
</td>
<td class="nump">$ 438,983<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpensesAbstract', window );"><strong>Expenses:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfGoodsAndServicesSold', window );">Cost of sales</a></td>
<td class="nump">3,079<span></span>
</td>
<td class="nump">3,086<span></span>
</td>
<td class="nump">8,616<span></span>
</td>
<td class="nump">8,646<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_ResearchDevelopmentAndPatentExpense', window );">Research, development and patent</a></td>
<td class="nump">184,770<span></span>
</td>
<td class="nump">125,083<span></span>
</td>
<td class="nump">463,878<span></span>
</td>
<td class="nump">364,298<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SellingGeneralAndAdministrativeExpense', window );">Selling, general and administrative</a></td>
<td class="nump">31,093<span></span>
</td>
<td class="nump">68,447<span></span>
</td>
<td class="nump">148,747<span></span>
</td>
<td class="nump">215,455<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpenses', window );">Total operating expenses</a></td>
<td class="nump">218,942<span></span>
</td>
<td class="nump">196,616<span></span>
</td>
<td class="nump">621,241<span></span>
</td>
<td class="nump">588,399<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Loss from operations</a></td>
<td class="num">(85,849)<span></span>
</td>
<td class="num">(36,537)<span></span>
</td>
<td class="num">(250,791)<span></span>
</td>
<td class="num">(149,416)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpenseAbstract', window );"><strong>Other income (expense):</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentIncomeNet', window );">Investment income</a></td>
<td class="nump">872<span></span>
</td>
<td class="nump">6,454<span></span>
</td>
<td class="nump">8,236<span></span>
</td>
<td class="nump">25,913<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="num">(2,340)<span></span>
</td>
<td class="num">(2,428)<span></span>
</td>
<td class="num">(7,111)<span></span>
</td>
<td class="num">(7,076)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnInvestments', window );">Gain on investments</a></td>
<td class="nump">4,013<span></span>
</td>
<td class="nump">835<span></span>
</td>
<td class="nump">4,885<span></span>
</td>
<td class="nump">10,722<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on early retirement of debt</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(8,627)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherNonoperatingIncomeExpense', window );">Other income (expenses)</a></td>
<td class="num">(469)<span></span>
</td>
<td class="nump">126<span></span>
</td>
<td class="num">(656)<span></span>
</td>
<td class="num">(122)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Loss before income tax benefit (expense)</a></td>
<td class="num">(83,773)<span></span>
</td>
<td class="num">(31,550)<span></span>
</td>
<td class="num">(254,064)<span></span>
</td>
<td class="num">(119,979)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax benefit (expense)</a></td>
<td class="nump">1,307<span></span>
</td>
<td class="num">(5,064)<span></span>
</td>
<td class="nump">854<span></span>
</td>
<td class="num">(4,077)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="num">(82,466)<span></span>
</td>
<td class="num">(36,614)<span></span>
</td>
<td class="num">(253,210)<span></span>
</td>
<td class="num">(124,056)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest', window );">Net loss attributable to noncontrolling interest in Akcea Therapeutics, Inc.</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">12,147<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">34,325<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</a></td>
<td class="num">$ (82,466)<span></span>
</td>
<td class="num">$ (24,467)<span></span>
</td>
<td class="num">$ (253,210)<span></span>
</td>
<td class="num">$ (89,731)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic net loss per share (in dollars per share)</a></td>
<td class="num">$ (0.58)<span></span>
</td>
<td class="num">$ (0.18)<span></span>
</td>
<td class="num">$ (1.80)<span></span>
</td>
<td class="num">$ (0.64)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted net loss per share (in dollars per share)</a></td>
<td class="num">$ (0.58)<span></span>
</td>
<td class="num">$ (0.18)<span></span>
</td>
<td class="num">$ (1.80)<span></span>
</td>
<td class="num">$ (0.64)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Shares used in computing basic net loss per share (in shares)</a></td>
<td class="nump">141,139<span></span>
</td>
<td class="nump">139,708<span></span>
</td>
<td class="nump">140,958<span></span>
</td>
<td class="nump">139,497<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Shares used in computing diluted net loss per share (in shares)</a></td>
<td class="nump">141,139<span></span>
</td>
<td class="nump">139,708<span></span>
</td>
<td class="nump">140,958<span></span>
</td>
<td class="nump">139,497<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ions_CommercialMember', window );">Commercial Revenue [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenuesAbstract', window );"><strong>Revenue:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">$ 84,820<span></span>
</td>
<td class="nump">$ 95,340<span></span>
</td>
<td class="nump">$ 255,129<span></span>
</td>
<td class="nump">$ 269,035<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ions_SpinrazaRoyaltiesMember', window );">SPINRAZA Royalties [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenuesAbstract', window );"><strong>Revenue:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">66,572<span></span>
</td>
<td class="nump">74,171<span></span>
</td>
<td class="nump">198,726<span></span>
</td>
<td class="nump">211,925<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=us-gaap_ProductMember', window );">TEGSEDI and WAYLIVRA Revenue, Net [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenuesAbstract', window );"><strong>Revenue:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">15,519<span></span>
</td>
<td class="nump">19,040<span></span>
</td>
<td class="nump">46,901<span></span>
</td>
<td class="nump">50,562<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ions_LicensingAndOtherRoyaltiesMember', window );">Licensing and Other Royalty Revenue [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenuesAbstract', window );"><strong>Revenue:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">2,729<span></span>
</td>
<td class="nump">2,129<span></span>
</td>
<td class="nump">9,502<span></span>
</td>
<td class="nump">6,548<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ions_ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember', window );">Research and Development Revenue Under Collaborative Agreements [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenuesAbstract', window );"><strong>Revenue:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">$ 48,273<span></span>
</td>
<td class="nump">$ 64,739<span></span>
</td>
<td class="nump">$ 115,321<span></span>
</td>
<td class="nump">$ 169,948<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_ResearchDevelopmentAndPatentExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects. Also includes charges for amortization and write-downs of capitalized patent costs, as well as legal fees for patent litigation and patent defense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_ResearchDevelopmentAndPatentExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostOfGoodsAndServicesSold">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(a),(d))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfGoodsAndServicesSold</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostsAndExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total costs of sales and operating expenses for the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostsAndExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostsAndExpensesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostsAndExpensesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.</p></div>
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http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainLossOnInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of realized and unrealized gain (loss) on investment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27405-111563<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7(c),9(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123467658&amp;loc=d3e12355-112629<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467658&amp;loc=d3e12317-112629<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 940<br> -SubTopic 20<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123384075&amp;loc=d3e41242-110953<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(10))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 235<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-05(b)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399901&amp;loc=d3e537907-122884<br><br>Reference 9: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8924-108599<br><br>Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(15))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 6.I.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32672-109319<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (h)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22663-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123586238&amp;loc=d3e38679-109324<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(9))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the cost of borrowed funds accounted for as interest expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28555-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (210.5-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpense</td>
</tr>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentIncomeNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7(a),(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.8)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentIncomeNet</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of Net Income (Loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669625-108580<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=SL4573702-111684<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22658-107794<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669619-108580<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591551-111686<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22663-107794<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=124431353&amp;loc=SL124452729-227067<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLossAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NonoperatingIncomeExpenseAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NonoperatingIncomeExpenseAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net result for the period of deducting operating expenses from operating revenues.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8924-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherNonoperatingIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (expense) related to nonoperating activities, classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherNonoperatingIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</p></div>
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FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProfitLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenuesAbstract">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenuesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>xbrli:stringItemType</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.4)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SellingGeneralAndAdministrativeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1505-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1448-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ions_CommercialMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ions_CommercialMember</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ions_SpinrazaRoyaltiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ions_LicensingAndOtherRoyaltiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ions_ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504816310312">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract', window );"><strong>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="num">$ (82,466)<span></span>
</td>
<td class="num">$ (36,614)<span></span>
</td>
<td class="num">$ (253,210)<span></span>
</td>
<td class="num">$ (124,056)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax', window );">Unrealized gains (losses) on debt securities, net of tax</a></td>
<td class="num">(1,618)<span></span>
</td>
<td class="num">(3,448)<span></span>
</td>
<td class="num">(6,321)<span></span>
</td>
<td class="nump">5,803<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax', window );">Currency translation adjustment</a></td>
<td class="num">(23)<span></span>
</td>
<td class="nump">275<span></span>
</td>
<td class="num">(45)<span></span>
</td>
<td class="nump">357<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest', window );">Comprehensive loss</a></td>
<td class="num">(84,107)<span></span>
</td>
<td class="num">(39,787)<span></span>
</td>
<td class="num">(259,576)<span></span>
</td>
<td class="num">(117,896)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest', window );">Comprehensive loss attributable to noncontrolling interest in Akcea Therapeutics, Inc.</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(12,188)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(33,883)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTax', window );">Comprehensive loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</a></td>
<td class="num">$ (84,107)<span></span>
</td>
<td class="num">$ (27,599)<span></span>
</td>
<td class="num">$ (259,576)<span></span>
</td>
<td class="num">$ (84,013)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e557-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(26))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669625-108580<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669619-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669625-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(21))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591552-111686<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669619-108580<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 21<br> -URI http://asc.fasb.org/extlink&amp;oid=123454820&amp;loc=SL4613674-111683<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=123454820&amp;loc=SL4569643-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591552-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669619-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=123454820&amp;loc=SL4569616-111683<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669625-108580<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 20<br> -Section 35<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123602790&amp;loc=d3e30304-110892<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=120253306&amp;loc=d3e28129-110885<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=118261656&amp;loc=d3e32022-110900<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (a-c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669646-108580<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e637-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669646-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e637-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669619-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(1)<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504902075624">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)<br> shares in Thousands, $ in Thousands</strong></div></th>
<th class="th"><div>Common Stock [Member]</div></th>
<th class="th"><div>Additional Paid In Capital [Member]</div></th>
<th class="th"><div>Accumulated Other Comprehensive Loss [Member]</div></th>
<th class="th"><div>Accumulated Deficit [Member]</div></th>
<th class="th"><div>Total Ionis Stockholders' Equity [Member]</div></th>
<th class="th"><div>Noncontrolling Interest in Akcea Therapeutics, Inc. [Member]</div></th>
<th class="th"><div>Total</div></th>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Dec. 31, 2019</a></td>
<td class="nump">$ 140<span></span>
</td>
<td class="nump">$ 1,985,650<span></span>
</td>
<td class="num">$ (25,290)<span></span>
</td>
<td class="num">$ (596,495)<span></span>
</td>
<td class="nump">$ 1,364,005<span></span>
</td>
<td class="nump">$ 213,453<span></span>
</td>
<td class="nump">$ 1,577,458<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssued', window );">Balance (in shares) at Dec. 31, 2019</a></td>
<td class="nump">140,340<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward', window );"><strong>Increase (Decrease) in Stockholders' Equity [Roll Forward]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(89,731)<span></span>
</td>
<td class="num">(89,731)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(89,731)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent', window );">Change in unrealized gains (losses), net of tax</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">5,803<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">5,803<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">5,803<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax', window );">Foreign currency translation</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">357<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">357<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">357<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross', window );">Issuance of common stock in connection with employee stock plans</a></td>
<td class="nump">$ 1<span></span>
</td>
<td class="nump">29,449<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">29,450<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">29,450<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation', window );">Issuance of common stock in connection with employee stock plans (in shares)</a></td>
<td class="nump">1,141<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue', window );">Repurchases and retirements of common stock</a></td>
<td class="num">$ (1)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(90,549)<span></span>
</td>
<td class="num">(90,550)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(90,550)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares', window );">Repurchases and retirements of common stock (in shares)</a></td>
<td class="num">(1,478)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock-based compensation expense</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">135,077<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">135,077<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">135,077<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="num">(12,960)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(12,960)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(12,960)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options (in shares)</a></td>
<td class="num">(209)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterestPeriodIncreaseDecrease', window );">Noncontrolling interest in Akcea Therapeutics, Inc.</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="num">(43,665)<span></span>
</td>
<td class="num">(442)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(44,107)<span></span>
</td>
<td class="nump">9,782<span></span>
</td>
<td class="num">(34,325)<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Sep. 30, 2020</a></td>
<td class="nump">$ 140<span></span>
</td>
<td class="nump">2,093,551<span></span>
</td>
<td class="num">(19,572)<span></span>
</td>
<td class="num">(776,775)<span></span>
</td>
<td class="nump">1,297,344<span></span>
</td>
<td class="nump">223,235<span></span>
</td>
<td class="nump">1,520,579<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssued', window );">Balance (in shares) at Sep. 30, 2020</a></td>
<td class="nump">139,794<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Jun. 30, 2020</a></td>
<td class="nump">$ 139<span></span>
</td>
<td class="nump">2,053,502<span></span>
</td>
<td class="num">(16,440)<span></span>
</td>
<td class="num">(752,308)<span></span>
</td>
<td class="nump">1,284,893<span></span>
</td>
<td class="nump">217,620<span></span>
</td>
<td class="nump">1,502,513<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssued', window );">Balance (in shares) at Jun. 30, 2020</a></td>
<td class="nump">139,489<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward', window );"><strong>Increase (Decrease) in Stockholders' Equity [Roll Forward]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(24,467)<span></span>
</td>
<td class="num">(24,467)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(24,467)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent', window );">Change in unrealized gains (losses), net of tax</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(3,448)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(3,448)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(3,448)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax', window );">Foreign currency translation</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">275<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">275<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">275<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross', window );">Issuance of common stock in connection with employee stock plans</a></td>
<td class="nump">$ 1<span></span>
</td>
<td class="nump">12,997<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">12,998<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">12,998<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation', window );">Issuance of common stock in connection with employee stock plans (in shares)</a></td>
<td class="nump">321<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock-based compensation expense</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">45,845<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">45,845<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">45,845<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="num">(990)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(990)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(990)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options (in shares)</a></td>
<td class="num">(16)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterestPeriodIncreaseDecrease', window );">Noncontrolling interest in Akcea Therapeutics, Inc.</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="num">(17,803)<span></span>
</td>
<td class="nump">41<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(17,762)<span></span>
</td>
<td class="nump">5,615<span></span>
</td>
<td class="num">(12,147)<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Sep. 30, 2020</a></td>
<td class="nump">$ 140<span></span>
</td>
<td class="nump">2,093,551<span></span>
</td>
<td class="num">(19,572)<span></span>
</td>
<td class="num">(776,775)<span></span>
</td>
<td class="nump">1,297,344<span></span>
</td>
<td class="nump">223,235<span></span>
</td>
<td class="nump">1,520,579<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssued', window );">Balance (in shares) at Sep. 30, 2020</a></td>
<td class="nump">139,794<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Dec. 31, 2020</a></td>
<td class="nump">$ 140<span></span>
</td>
<td class="nump">1,895,519<span></span>
</td>
<td class="num">(21,071)<span></span>
</td>
<td class="num">(1,131,306)<span></span>
</td>
<td class="nump">743,282<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">743,282<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssued', window );">Balance (in shares) at Dec. 31, 2020</a></td>
<td class="nump">140,366<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward', window );"><strong>Increase (Decrease) in Stockholders' Equity [Roll Forward]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(253,210)<span></span>
</td>
<td class="num">(253,210)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(253,210)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent', window );">Change in unrealized gains (losses), net of tax</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(6,321)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(6,321)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(6,321)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax', window );">Foreign currency translation</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(45)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(45)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(45)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross', window );">Issuance of common stock in connection with employee stock plans</a></td>
<td class="nump">$ 1<span></span>
</td>
<td class="nump">11,563<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">11,564<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">11,564<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation', window );">Issuance of common stock in connection with employee stock plans (in shares)</a></td>
<td class="nump">1,094<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued', window );">Issuance of warrants</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">89,752<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">89,752<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">89,752<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalOther', window );">Purchase of note hedges</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(136,620)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(136,620)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(136,620)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock-based compensation expense</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">98,419<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">98,419<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">98,419<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="num">(16,285)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(16,285)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(16,285)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options (in shares)</a></td>
<td class="num">(276)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Sep. 30, 2021</a></td>
<td class="nump">$ 141<span></span>
</td>
<td class="nump">1,942,348<span></span>
</td>
<td class="num">(27,437)<span></span>
</td>
<td class="num">(1,384,516)<span></span>
</td>
<td class="nump">530,536<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">530,536<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssued', window );">Balance (in shares) at Sep. 30, 2021</a></td>
<td class="nump">141,184<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Jun. 30, 2021</a></td>
<td class="nump">$ 141<span></span>
</td>
<td class="nump">1,910,379<span></span>
</td>
<td class="num">(25,796)<span></span>
</td>
<td class="num">(1,302,050)<span></span>
</td>
<td class="nump">582,674<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">582,674<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssued', window );">Balance (in shares) at Jun. 30, 2021</a></td>
<td class="nump">141,022<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward', window );"><strong>Increase (Decrease) in Stockholders' Equity [Roll Forward]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(82,466)<span></span>
</td>
<td class="num">(82,466)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(82,466)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent', window );">Change in unrealized gains (losses), net of tax</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(1,618)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(1,618)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(1,618)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax', window );">Foreign currency translation</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(23)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(23)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(23)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross', window );">Issuance of common stock in connection with employee stock plans</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">1,922<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">1,922<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">1,922<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation', window );">Issuance of common stock in connection with employee stock plans (in shares)</a></td>
<td class="nump">176<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock-based compensation expense</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">30,537<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">30,537<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">30,537<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="num">(490)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(490)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(490)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options (in shares)</a></td>
<td class="num">(14)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Sep. 30, 2021</a></td>
<td class="nump">$ 141<span></span>
</td>
<td class="nump">$ 1,942,348<span></span>
</td>
<td class="num">$ (27,437)<span></span>
</td>
<td class="num">$ (1,384,516)<span></span>
</td>
<td class="nump">$ 530,536<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 530,536<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssued', window );">Balance (in shares) at Sep. 30, 2021</a></td>
<td class="nump">141,184<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of other increase (decrease) in additional paid in capital (APIC).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalOther</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=122142933&amp;loc=d3e11149-113907<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=122142933&amp;loc=d3e11178-113907<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123468992&amp;loc=d3e4534-113899<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 25<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123466302&amp;loc=d3e4724-112606<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInStockholdersEquityRollForward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MinorityInterestPeriodIncreaseDecrease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=123454820&amp;loc=SL4568740-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MinorityInterestPeriodIncreaseDecrease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI 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Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 34: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 35: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=SL4573702-111684<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=123454820&amp;loc=SL4569616-111683<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=123454820&amp;loc=SL4569643-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 20<br> -Section 35<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123602790&amp;loc=d3e30304-110892<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=120253306&amp;loc=d3e28129-110885<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=118261656&amp;loc=d3e32022-110900<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (a-c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669646-108580<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e637-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares that have been repurchased and retired during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockRepurchasedAndRetiredDuringPeriodShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockRepurchasedAndRetiredDuringPeriodValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504902564056">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="num">$ (253,210)<span></span>
</td>
<td class="num">$ (124,056)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile net loss to net cash used in operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Depreciation', window );">Depreciation</a></td>
<td class="nump">11,665<span></span>
</td>
<td class="nump">9,713<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense', window );">Amortization of right-of-use operating lease assets</a></td>
<td class="nump">1,171<span></span>
</td>
<td class="nump">1,356<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfIntangibleAssets', window );">Amortization of patents</a></td>
<td class="nump">1,740<span></span>
</td>
<td class="nump">1,526<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments', window );">Amortization of premium on investments, net</a></td>
<td class="nump">13,515<span></span>
</td>
<td class="nump">7,812<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfFinancingCosts', window );">Amortization of debt issuance costs</a></td>
<td class="nump">3,586<span></span>
</td>
<td class="nump">2,388<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensation', window );">Stock-based compensation expense</a></td>
<td class="nump">98,419<span></span>
</td>
<td class="nump">135,077<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RealizedInvestmentGainsLosses', window );">Gain on investments</a></td>
<td class="num">(933)<span></span>
</td>
<td class="num">(10,722)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on early retirement of debt</a></td>
<td class="nump">8,627<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ImpairmentOfIntangibleAssetsFinitelived', window );">Non-cash losses related to patents</a></td>
<td class="nump">1,150<span></span>
</td>
<td class="nump">616<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredIncomeTaxExpenseBenefit', window );">Provision for deferred income taxes</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">1,649<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Changes in operating assets and liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInContractWithCustomerAsset', window );">Contracts receivable</a></td>
<td class="nump">67,136<span></span>
</td>
<td class="nump">24,057<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInInventories', window );">Inventories</a></td>
<td class="num">(965)<span></span>
</td>
<td class="num">(1,468)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOtherOperatingAssets', window );">Other current and long-term assets</a></td>
<td class="nump">10,358<span></span>
</td>
<td class="num">(5,647)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable', window );">Income taxes (payable) receivable</a></td>
<td class="nump">134<span></span>
</td>
<td class="num">(23,674)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayable', window );">Accounts payable</a></td>
<td class="num">(10,737)<span></span>
</td>
<td class="num">(10,970)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities', window );">Accrued compensation</a></td>
<td class="num">(33,408)<span></span>
</td>
<td class="num">(8,967)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities', window );">Accrued liabilities and other current liabilities</a></td>
<td class="num">(19,526)<span></span>
</td>
<td class="nump">13,195<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInContractWithCustomerLiability', window );">Deferred contract revenue</a></td>
<td class="num">(71,610)<span></span>
</td>
<td class="num">(73,970)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivities', window );">Net cash used in operating activities</a></td>
<td class="num">(172,888)<span></span>
</td>
<td class="num">(62,085)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract', window );"><strong>Investing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt', window );">Purchases of short-term investments</a></td>
<td class="num">(930,963)<span></span>
</td>
<td class="num">(1,376,631)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities', window );">Proceeds from sale of short-term investments</a></td>
<td class="nump">1,051,857<span></span>
</td>
<td class="nump">1,497,433<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Purchases of property, plant and equipment</a></td>
<td class="num">(9,453)<span></span>
</td>
<td class="num">(29,971)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireIntangibleAssets', window );">Acquisition of patents, net</a></td>
<td class="num">(4,459)<span></span>
</td>
<td class="num">(4,203)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireEquitySecuritiesFvNi', window );">Purchase of Bicycle Therapeutics plc common stock</a></td>
<td class="num">(7,185)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivities', window );">Net cash provided by investing activities</a></td>
<td class="nump">99,797<span></span>
</td>
<td class="nump">86,628<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Financing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions', window );">Proceeds from equity, net</a></td>
<td class="nump">11,564<span></span>
</td>
<td class="nump">29,450<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation', window );">Payments of tax withholdings related to vesting of employee stock awards and exercise of employee stock options</a></td>
<td class="num">(16,285)<span></span>
</td>
<td class="num">(12,960)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromConvertibleDebt', window );">Proceeds from issuance of 0 percent convertible senior notes</a></td>
<td class="nump">632,500<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfDebtIssuanceCosts', window );">0 percent convertible senior notes issuance costs</a></td>
<td class="num">(15,525)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repurchase of $247.9 million principal amount of 1 percent convertible senior notes</a></td>
<td class="num">(256,963)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfWarrants', window );">Proceeds from issuance of warrants</a></td>
<td class="nump">89,752<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForHedgeFinancingActivities', window );">Purchase of note hedges</a></td>
<td class="num">(136,620)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForRepurchaseOfCommonStock', window );">Repurchases and retirements of common stock</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(90,548)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities', window );">Payments of transaction costs for Akcea merger</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(1,071)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivities', window );">Net cash provided by (used in) financing activities</a></td>
<td class="nump">308,423<span></span>
</td>
<td class="num">(75,129)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents', window );">Effects of exchange rates on cash</a></td>
<td class="num">(43)<span></span>
</td>
<td class="nump">358<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect', window );">Net increase (decrease) in cash and cash equivalents</a></td>
<td class="nump">235,289<span></span>
</td>
<td class="num">(50,228)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Cash and cash equivalents at beginning of period</a></td>
<td class="nump">397,664<span></span>
</td>
<td class="nump">683,287<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Cash and cash equivalents at end of period</a></td>
<td class="nump">632,953<span></span>
</td>
<td class="nump">633,059<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SupplementalCashFlowInformationAbstract', window );"><strong>Supplemental disclosures of cash flow information:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestPaidNet', window );">Interest paid</a></td>
<td class="nump">3,527<span></span>
</td>
<td class="nump">3,700<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxesPaid', window );">Income taxes paid</a></td>
<td class="nump">3<span></span>
</td>
<td class="nump">23,532<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract', window );"><strong>Supplemental disclosures of non-cash investing and financing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NonCashCapitalAndPatentExpenditures', window );">Amounts accrued for capital and patent expenditures</a></td>
<td class="nump">1,811<span></span>
</td>
<td class="nump">6,576<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_AcquisitionTransactionCostsIncurredButNotYetPaid', window );">Amounts accrued for Akcea merger transaction costs</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 8,103<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_AcquisitionTransactionCostsIncurredButNotYetPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Future cash outflow to pay for acquisition transaction costs that have occurred.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_AcquisitionTransactionCostsIncurredButNotYetPaid</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NonCashCapitalAndPatentExpenditures">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Future cash outflow to pay for purchases of fixed assets and patents that have been incurred.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NonCashCapitalAndPatentExpenditures</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AmortizationOfFinancingCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense attributable to debt issuance costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1F<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495355-112611<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28555-108399<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AmortizationOfFinancingCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AmortizationOfIntangibleAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6388964&amp;loc=d3e16225-109274<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AmortizationOfIntangibleAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123444420&amp;loc=d3e33268-110906<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredIncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.Fact.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h)(1)(Note 1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.Fact.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32639-109319<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredIncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Depreciation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Depreciation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123444420&amp;loc=d3e33268-110906<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123467658&amp;loc=d3e12355-112629<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467658&amp;loc=d3e12317-112629<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ImpairmentOfIntangibleAssetsFinitelived">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16373-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ImpairmentOfIntangibleAssetsFinitelived</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxesPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=d3e4297-108586<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxesPaid</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInContractWithCustomerAsset">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInContractWithCustomerAsset</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInContractWithCustomerLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 912<br> -SubTopic 310<br> -Section 45<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123371682&amp;loc=d3e55415-109406<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInContractWithCustomerLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInInventories">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInInventories</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in current liabilities classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOtherCurrentLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in employer-related costs classified as other and current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOtherEmployeeRelatedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOtherOperatingAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in operating assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOtherOperatingAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestPaidNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=d3e4297-108586<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 17<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3367-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestPaidNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3536-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense for right-of-use asset from operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForHedgeFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 27<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3581-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForHedgeFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForRepurchaseOfCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow to reacquire common stock during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForRepurchaseOfCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfDebtIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfDebtIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for financing costs associated with business combinations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3213-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3151-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=124260329&amp;loc=d3e26853-111562<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireEquitySecuritiesFvNi">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow to acquire investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as investing activity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 321<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123583714&amp;loc=SL75117360-209713<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3444-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireEquitySecuritiesFvNi</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireIntangibleAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireIntangibleAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow from issuance of shares under share-based payment arrangement. Includes, but is not limited to, option exercised.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=SL79508275-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfWarrants">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfWarrants</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3151-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3179-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=124260329&amp;loc=d3e26853-111562<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of realized gain (loss) on investment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.3(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncash expense for share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504816351848">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($)<br> $ in Millions</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Apr. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember', window );">0 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Financing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember', window );">1 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Financing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">1.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
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</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentRepurchasedFaceAmount', window );">Principal amount repurchased</a></td>
<td class="nump">$ 247.9<span></span>
</td>
<td class="nump">$ 247.9<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
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<div style="display: none;">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face (par) amount of the original debt instrument that was repurchased.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823654920">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Basis of Presentation [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock', window );">Basis of Presentation</a></td>
<td class="text">
<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">1.&#160; Basis of Presentation</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We prepared the unaudited interim condensed consolidated financial statements for the three and </span>nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#160;</span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> on the same basis as the audited financial statements for the year ended </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, with the exception of our retrospective adoption of Accounting Standards Update, or ASU, 2020-06, which simplifies</span> the accounting for convertible debt instruments<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. See Note 2, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Polices</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Convertible Debt, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">for details of our adoption of this guidance. We included all normal recurring adjustments in the financial statements, which we considered necessary for a fair presentation of our financial position at such dates and our operating results and cash flows for those periods. Our operating results for the interim periods may not be indicative of what our operating results will be for the entire year. For more complete financial information, these financial statements, and notes thereto, should be read in conjunction with the audited financial statements for the year ended </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission, or SEC.</span></div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In our condensed consolidated financial statements, we included the accounts of Ionis Pharmaceuticals, Inc. and the consolidated results of our wholly owned subsidiary, Akcea Therapeutics, Inc. and its wholly owned subsidiaries (&#8220;we&#8221;, &#8220;us&#8221; or &#8220;our&#8221;). We formed Akcea in December 2014. </span>In July 2017, Akcea completed an <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">initial public offering, or IPO, which reduced our ownership of Akcea&#8217;s common stock below </span>100 percent<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span>&#160;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In October 2020, we completed a merger transaction with Akcea such that following the completion of the merger, Akcea became our wholly owned subsidiary. We will refer to this transaction as the Akcea Merger throughout the remainder of this document. </span>We reflected changes in our ownership percentage in our financial statements as an adjustment to noncontrolling interest in the period the changes occurred.</div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -URI http://asc.fasb.org/topic&amp;trid=2122149<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -URI http://asc.fasb.org/topic&amp;trid=2197479<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823185816">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountingPoliciesAbstract', window );"><strong>Significant Accounting Policies [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SignificantAccountingPoliciesTextBlock', window );">Significant Accounting Policies</a></td>
<td class="text">
<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2.&#160; Significant Accounting Policies</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Revenue Recognition</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Our Revenue Sources</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We generally recognize revenue when we have satisfied all contractual obligations and are reasonably assured of collecting the resulting receivable. We are often entitled to bill our customers and receive payment from our customers in advance of recognizing the revenue. In the instances in which we have received payment from our customers in advance of recognizing revenue, we include the amounts in deferred revenue on our condensed consolidated balance sheet.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We earn commercial revenue primarily in the form of royalty payments on net sales of SPINRAZA. We will also recognize as commercial revenue sales milestone payments and royalties we earn under our other partnerships.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we began commercializing TEGSEDI in North America through a distribution agreement with Swedish Orphan Biovitrum AB, or Sobi. In January 2021, we began commercializing TEGSEDI and WAYLIVRA in Europe through a distribution agreement with Sobi. Under our agreements, we are responsible for supplying finished goods inventory to Sobi and Sobi is responsible for selling each medicine to the end customer. As a result of these agreements, we earn a distribution fee on net sales from Sobi for each medicine.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Prior to the second quarter of 2021 in North America, we sold TEGSEDI through exclusive distribution agreements with third-party logistics companies, or 3PLs, that took title to TEGSEDI. The 3PLs then distributed TEGSEDI to a specialty pharmacy and a specialty distributor, which we collectively refer to as wholesalers, who then distributed TEGSEDI to health care providers and patients. In the United States, or U.S., we had a single 3PL as our sole customer and in Canada we also had a single 3PL as our sole customer. Prior to 2021 in Europe, we sold TEGSEDI and WAYLIVRA to hospitals and pharmacies, which were our customers, using 3PLs as distributors.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our collaboration agreement with PTC Therapeutics International Limited, or PTC, PTC is responsible for commercializing TEGSEDI and WAYLIVRA in Latin America and Caribbean countries. In the third quarter of 2021, we earned a $4 million milestone payment from PTC when WAYLIVRA was approved in Brazil, which we included in TEGSEDI and WAYLIVRA revenue in our condensed consolidated statement of operations.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Research and development revenue under collaborative agreements</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We often enter into collaboration agreements to license and sell our technology on an exclusive or non-exclusive basis. Our collaboration agreements typically contain multiple elements, or performance obligations, including technology licenses or options to obtain technology licenses, research and development, or R&amp;D, services, and manufacturing services.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">See <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Note 5, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, for collaborations with substantive changes that occurred in 2021. Additionally, see </span>Note 6, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span>, in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for a summary of each of our material collaborative agreements.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Steps to Recognize Revenue</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We use a five-step process to determine the amount of revenue we should recognize and when we should recognize it. The five-step process is as follows:</div>

<div><br/></div>

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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">1.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Identify the contract</div></td>
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<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accounting rules require us to first determine if we have a contract with our partner, including confirming that we have met each of the following criteria:</div>

<div><br/></div>

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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We and our partner approved the contract and we are both committed to perform our obligations;</div></td>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zb1963218390147ba9dca032413c3b7e9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have identified our rights, our partner&#8217;s rights and the payment terms;</div></td>
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have concluded that the contract has commercial substance, meaning that the risk, timing, or amount of our future cash flows is expected to change as a result of the contract; and</div></td>
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We believe collectability of the consideration is probable.</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z99f76379ac0943c59f09e766fd6d6bf1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;">2</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;">.</span></td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Identify the performance obligations</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We next identify our performance obligations, which represent the distinct goods and services we are required to provide under the contract. We typically have only one performance obligation at the inception of a contract, which is to perform R&amp;D services.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Often we enter into a collaboration agreement in which we provide our partner with an option to license a medicine in the future. We may also provide our partner with an option to request that we provide additional goods or services in the future, such as active pharmaceutical ingredient, or API. We evaluate whether these options are material rights at the inception of the agreement. If we determine an option is a material right, we will consider the option a separate performance obligation. Historically, we have concluded that the options we grant to license a medicine in the future or to provide additional goods and services as requested by our partner are not material rights because these items are contingent upon future events that may not occur and are not priced at a significant discount. When a partner exercises its option to license a medicine or requests additional goods or services, then we identify a new performance obligation for that item.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In some cases, we deliver a license at the start of an agreement. If we determine that our partner has full use of the license and we do not have any additional material performance obligations related to the license after delivery, then we consider the license to be a separate performance obligation.</div>

<div><br/></div>

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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">3.</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Determine the transaction price</div></td>
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<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We then determine the transaction price by reviewing the amount of consideration we are eligible to earn under the collaboration agreement, including any variable consideration. Under our collaboration agreements, consideration typically includes fixed consideration in the form of an upfront payment and variable consideration in the form of potential milestone payments, license fees and royalties. At the start of an agreement, our transaction price usually consists of only the upfront payment. We do not typically include any payments we may receive in the future in our initial transaction price because the payments are not probable and are contingent on certain future events. We reassess the total transaction price at each reporting period to determine if we should include additional payments in the transaction price.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Milestone payments are our most common type of variable consideration. We recognize milestone payments using the most likely amount method because we will either receive the milestone payment or we will not, which makes the potential milestone payment a binary event. The most likely amount method requires us to determine the likelihood of earning the milestone payment. We include a milestone payment in the transaction price once it is probable we will achieve the milestone event. Most often, we do not consider our milestone payments probable until we or our partner achieve the milestone event because the majority of our milestone payments are contingent upon events that are not within our control and/or are usually based on scientific progress which is inherently uncertain. For example, in the third quarter of 2021, we earned a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We did not consider the milestone payment probable until Novartis achieved the milestone event because it was contingent on Novartis&#8217; enrollment of patients and was not within our control. We recognized the milestone payment in full in the period the milestone event was achieved because we did not have any remaining performance obligations related to the milestone payment.</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z0e5e2ea0afca436795d2299267aee8f8" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">4.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Allocate the transaction price</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Next, we allocate the transaction price to each of our performance obligations. When we have to allocate the transaction price to more than one performance obligation, we make estimates of the relative stand-alone selling price of each performance obligation because we do not typically sell our goods or services on a stand-alone basis. We then allocate the transaction price to each performance obligation based on the relative stand-alone selling price. We do not reallocate the transaction price after the start of an agreement to reflect subsequent changes in stand-alone selling prices.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We may engage a third party, independent valuation specialist to assist us with determining a stand-alone selling price for collaborations in which we deliver a license at the start of an agreement. We estimate the stand-alone selling price of these licenses using valuation methodologies, such as the relief from royalty method. Under this method, we estimate the amount of income, net of taxes, for the license. We then discount the projected income to present value. The significant inputs we use to determine the projected income of a license could include:</div>

<div><br/></div>

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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated future product sales;</div></td>
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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated royalties we may receive from future product sales;</div></td>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2523979e965643a4aad4d08b321a7edc" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated contractual milestone payments we may receive;</div></td>
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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated expenses we may incur;</div></td>
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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated income taxes; and</div></td>
  </tr>
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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">A discount rate.</div></td>
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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We typically estimate the selling price of R&amp;D services by using our internal estimates of the cost to perform the specific services. The significant inputs we use to determine the selling price of our R&amp;D services include:</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2dd3331d1d82404fa0412f07a28c5c79" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated number of internal hours we will spend performing these services;</div></td>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z029de365d800459bbc5513523f5a5a7d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of work we will perform;</div></td>
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</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zbcf18559edbc4c7bbdf049dcd3b5fc34" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of work that we will contract with third parties to perform; and</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z5b2392fee3034e6daa12c05d913dce05" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of API we will use.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For purposes of determining the stand-alone selling price of the R&amp;D services we perform and the API we will deliver, accounting guidance requires us to include a markup for a reasonable profit margin.</div>

<div style="text-align: justify;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </span><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zaa266e1aaa6648d482a9511662ff6ba5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">5.</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Recognize revenue</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize revenue in one of two ways, over time or at a point in time. We recognize revenue over time when we are executing on our performance obligation over time and our partner receives benefit over time. For example, we recognize revenue over time when we provide R&amp;D services. We recognize revenue at a point in time when our partner receives full use of an item at a specific point in time. For example, we recognize revenue at a point in time when we deliver a license or API to a partner.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For R&amp;D services that we recognize over time, we measure our progress using an input method. The input methods we use are based on the effort we expend or costs we incur toward the satisfaction of our performance obligation. We estimate the amount of effort we expend, including the time we estimate it will take us to complete the activities, or costs we incur in a given period, relative to the estimated total effort or costs to satisfy the performance obligation. This results in a percentage that we multiply by the transaction price to determine the amount of revenue we recognize each period. This approach requires us to make numerous estimates and use significant judgement. If our estimates or judgements change over the course of the collaboration, they may affect the timing and amount of revenue that we recognize in the current and future periods.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following are examples of when we typically recognize revenue based on the types of payments we receive.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize royalty revenue, including royalties from SPINRAZA sales, in the period in which the counterparty sells the related product and recognizes the related revenue, which in certain cases may require us to estimate our royalty revenue.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our distribution agreements with Sobi we concluded that our performance obligation is to provide services to Sobi over the term of the agreement, which includes supplying finished goods inventory to Sobi and because we retained the marketing authorization for TEGSEDI and WAYLIVRA we are responsible for leading the global commercial strategy for each medicine. We view this performance obligation as a series of distinct activities that are substantially the same. Therefore, we recognize as revenue the price Sobi pays us for the inventory when we deliver the finished goods inventory to Sobi. We also recognize distribution fee revenue based on Sobi&#8217;s net sales of TEGSEDI and WAYLIVRA. Under our agreements with Sobi, Sobi does not generally have a right of return.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Prior to our distribution agreements with Sobi, we recognized TEGSEDI and WAYLIVRA commercial revenue in the period when our customer obtained control of our products, which occurred at a point in time upon transfer of title to the customer. We classified payments to customers or other parties in the distribution channel for services that were distinct and priced at fair value as selling, general and administrative, or SG&amp;A, expenses in our condensed consolidated statements of operations. We classified payments to customers or other parties in the distribution channel that did not meet those criteria as a reduction of revenue, as discussed further below. We excluded from revenues taxes collected from customers relating to TEGSEDI and WAYLIVRA commercial revenue and remitted these amounts to governmental authorities.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Reserves for TEGSEDI and WAYLIVRA commercial revenue</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our distribution agreements with Sobi, Sobi is responsible for any applicable reserves.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Prior to our distribution agreements with Sobi, w</span>e recorded TEGSEDI and WAYLIVRA commercial revenue at our net sales price, or transaction price. We included in our transaction price estimated reserves for discounts, returns, chargebacks, rebates and other allowances that we offered within contracts between us and our customers, wholesalers, distributors, health care providers and other indirect customers. We estimated our reserves using the amounts we have earned or we could claim on the associated sales. We classified our reserves as a reduction of accounts receivable when we were not required to make a payment or as a current liability when we were required to make a payment. In certain cases, our estimates included a range of possible outcomes that were probability weighted for relevant factors such as our historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, our reserves reflected our best estimates under the terms of our respective contracts. When calculating our reserves and related TEGSEDI and WAYLIVRA commercial revenue, we only recognized amounts to the extent that we considered it probable that we would not have to reverse a significant amount of the cumulative sales we previously recognized in a future period. Under our agreements with Sobi, we transferred all reserves to Sobi. See our revenue recognition policy in Note 1, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Organization and Significant Accounting Policies</span>, of our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for additional details regarding how we accounted for the reserves related to TEDSEDI and WAYLIVIRA product sales prior to our agreements with Sobi.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Research and development revenue under collaboration agreements:</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Upfront payments</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">When we enter into a collaboration agreement and receive an upfront payment, we typically record the entire upfront payment as deferred revenue if our only performance obligation is for R&amp;D services we will provide in the future. We amortize the upfront payment into revenue as we perform the R&amp;D services. For example, under our collaboration agreement with Roche to develop IONIS-FB-L<sub>Rx</sub> for the treatment of complement-mediated diseases, we received a $75 million upfront payment in the fourth quarter of 2018. We allocated the upfront payment to our single performance obligation, R&amp;D services. We are amortizing the $75 million upfront payment using an input method over the estimated period of time we are providing R&amp;D services.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Milestone payments</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are required to include additional consideration in the transaction price when it is probable. We typically include milestone payments for R&amp;D services in the transaction price when they are achieved. We include these milestone payments when they are achieved because typically there is considerable uncertainty in the research and development processes that trigger these payments. Similarly, we include approval milestone payments in the transaction price once the medicine is approved by the applicable regulatory agency. We will recognize sales-based milestone payments in the period in which we achieve the milestone under the sales-based royalty exception allowed under accounting rules.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize milestone payments that relate to an ongoing performance obligation over our period of performance. For example, in the fourth quarter of 2020, we achieved a $7.5 million milestone payment from Biogen when we advanced a target under our 2018 strategic collaboration. We added this payment to the transaction price and allocated it to our R&amp;D services performance obligation. We are recognizing revenue related to this milestone payment over our estimated period of performance.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversely, we recognize in full those milestone payments that we earn based on our partners&#8217; activities when our partner achieves the milestone event and we do not have a performance obligation. For example, in the third quarter of 2021, we recognized a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We recognized the milestone payment in full in the third quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">License fees</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We generally recognize as revenue the total amount we determine to be the relative stand-alone selling price of a license when we deliver the license to our partner. This is because our partner has full use of the license and we do not have any additional performance obligations related to the license after delivery. For example, in the fourth quarter of 2020, we earned a $30 million license fee from AstraZeneca when AstraZeneca licensed ION455, an investigational medicine in development to treat nonalcoholic steatohepatitis, or NASH.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Sublicense fees</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize sublicense fee revenue in the period in which a party, who has already licensed our technology, further licenses the technology to another party because we do not have any performance obligations related to the sublicense.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Amendments to Agreements</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">From time to time we amend our collaboration agreements. When this occurs, we are required to assess the following items to determine the accounting for the amendment:</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z9c306ffd794f472ca5b606c438bf5a4b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If the additional goods and/or services are distinct from the other performance obligations in the original agreement; and</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2e299ba86071471289d0de0c0f75ad1b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If the goods and/or services are sold at a stand-alone selling price.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If we conclude the goods and/or services in the amendment are distinct from the performance obligations in the original agreement and at a stand-alone selling price, we account for the amendment as a separate agreement. If we conclude the goods and/or services are not distinct and are sold at a stand-alone selling price, we then assess whether the remaining goods or services are distinct from those already provided. If the goods and/or services are distinct from what we have already provided, then we allocate the remaining transaction price from the original agreement and the additional transaction price from the amendment to the remaining goods and/or services. If the goods and/or services are not distinct from what we have already provided, we update the transaction price for our single performance obligation and recognize any change in our estimated revenue as a cumulative adjustment.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, in May 2015, we entered into an exclusive license agreement with Bayer to develop and commercialize IONIS-FXI<sub>Rx</sub> for the prevention of thrombosis. As part of the agreement, Bayer paid us a<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> $</span>100<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million upfront payment. At the onset of the agreement, we were responsible for completing a Phase 2 study of IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> in people with end-stage renal disease on hemodialysis and for providing an initial supply of API. In February 2017, we amended our agreement with Bayer to advance IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and to initiate development of fesomersen (IONIS-FXI-L</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">), which Bayer licensed. As part of the 2017 amendment, Bayer paid us $</span>75<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million. We are also eligible to receive milestone payments and tiered royalties on gross margins of IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and fesomersen. Under the 2017 amendment, we concluded we had a new agreement with </span>three<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> performance obligations. These performance obligations were to deliver the license of fesomersen, to provide R&amp;D services and to deliver API. We allocated the $</span>75<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million transaction price to these performance obligations. Refer to Note 6, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span>in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020&#160;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">for further discussion of the Bayer collaboration.</span></div>

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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Multiple agreements</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">From time to time, we may enter into separate agreements at or near the same time with the same partner. We evaluate such agreements to determine whether we should account for them individually as distinct arrangements or whether the separate agreements should be combined and accounted for together. We evaluate the following to determine the accounting for the agreements:</div>

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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the agreements were negotiated together with a single objective;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc42f620f66da4691b1d07dc612437121" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the amount of consideration in one contract depends on the price or performance of the other agreement; or</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7420d29e9e9741799400cb97bac13094" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the goods and/or services promised under the agreements are a single performance obligation.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our evaluation involves significant judgment to determine whether a group of agreements might be so closely related that accounting guidance requires us to account for them as a combined arrangement.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, in the second quarter of 2018, we entered into two separate agreements with Biogen at the same time: a new strategic neurology collaboration agreement and a stock purchase agreement, or SPA. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We evaluated the Biogen agreements to determine whether we should treat the agreements separately or combine them. We considered that the agreements were negotiated concurrently and in contemplation of one another. Based on these facts and circumstances, we concluded that we should evaluate the provisions of the agreements on a combined basis. </span></div>

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<div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Contracts Receivable</div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Our contracts receivable balance represents the amounts we have billed our partners or customers and that are due to us unconditionally for goods we have delivered or services we have performed. When we bill our partners or customers with payment terms based on the passage of time, we consider the contracts receivable to be unconditional. We typically receive payment within </span><span style="-sec-ix-hidden:Fact_cb46feec840d4d05b86df2a2af3b44c3">one quarter</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> of billing our partner or customer</span>.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As of September 30, 2021, approximately 58.3 percent of our contracts receivables were from three significant customers. As of December 31, 2020, approximately 99.5 percent of our contracts receivables were from two significant customers.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Unbilled SPINRAZA Royalties</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our unbilled SPINRAZA royalties represent our right to receive consideration from Biogen in advance of when we are eligible to bill Biogen for SPINRAZA royalties. We include these unbilled amounts in other current assets on our condensed consolidated balance sheet.</div>

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<div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Deferred Revenue</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We are often entitled to bill our customers and receive payment from our customers in advance of our obligation to provide services or transfer goods to our partners. In these instances, we include the amounts in deferred revenue on our condensed consolidated balance sheet.</span> During the three months ended&#160;September 30, 2021 and 2020, we recognized $21.1 million and $22.5 million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">During the </span>nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#160;</span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, we recognized $</span>71.9<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million and $</span>84.1<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. </span>For further discussion, refer to our revenue recognition policy above.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Cost of Sales</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our cost of sales includes manufacturing costs, transportation and freight costs and indirect overhead costs associated with the manufacturing and distribution of our products. We also may include certain period costs related to manufacturing services and inventory adjustments in cost of sales. </div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Cash, Cash Equivalents and Investments</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We consider all liquid investments with maturities of three months or less when we purchase them to be cash equivalents. Our short-term investments have initial maturities of greater than three months from date of purchase. We classify our short-term debt investments as &#8220;available-for-sale&#8221; and carry them at fair market value based upon prices on the last day of the fiscal period for identical or similar items. We record unrealized gains and losses on debt securities as a separate component of comprehensive income (loss) and include net realized gains and losses in gain (loss) on investments in our condensed consolidated statement of operations. We use the specific identification method to determine the cost of securities sold.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We also have equity investments of less than 20 percent ownership in publicly and privately held biotechnology companies that we received as part of a technology license or partner agreement. At September 30, 2021, we held equity investments in three publicly held companies, Antisense Therapeutics Limited, or ATL, Bicycle Therapeutics plc, or Bicycle, and ProQR Therapeutics N.V., or ProQR. We also held equity investments in seven privately held companies, Aro Biotherapeutics, Atlantic Pharmaceuticals Limited, Dynacure SAS, Empirico, Inc., Flamingo Therapeutics BV, YourBio Health, Inc. (formerly Seventh Sense Biosystems) and Suzhou-Ribo Life Science Co, Ltd.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are required to measure and record our equity investments at fair value and to recognize the changes in fair value in our condensed consolidated statement of operations. We account for our equity investments in privately held companies at their cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. For example, during the second and fourth quarters of 2020, we revalued our investments in three privately held companies, Dynacure, Suzhou-Ribo and Aro Biotherapeutics because the companies sold additional equity securities that were similar to the equity we own. These observable price changes resulted in us recognizing a $6.3 million gain on our investment in Dynacure, a $3.0 million gain on our investment in Suzhou-Ribo and a $5.5 million gain on our investment in Aro Biotherapeutics in our condensed consolidated statement of operations during 2020 because the sales were at higher prices compared to our recorded value.</div>

<div><br/></div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Inventory Valuation</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We reflect our inventory on our condensed consolidated balance sheet at the lower of cost or net realizable value under the first-in, first-out method, or FIFO. We capitalize the costs of raw materials that we purchase for use in producing our medicines because until we use these raw materials, they have alternative future uses, which we refer to as clinical raw materials. We include in inventory raw material costs for medicines that we manufacture for our partners under contractual terms and that we use primarily in our clinical development activities and drug products. We can use each of our raw materials in multiple products and, as a result, each raw material has future economic value independent of the development status of any single medicine. For example, if one of our medicines failed, we could use the raw materials for that medicine to manufacture our other medicines. We expense these costs as R&amp;D expenses when we begin to manufacture API for a particular medicine if the medicine has not been approved for marketing by a regulatory agency. Our raw materials- commercial inventory includes API for our commercial medicines. We capitalize material, labor and overhead costs as part of our raw materials- commercial inventory.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We obtained the first regulatory approval for TEGSEDI in July 2018 and for WAYLIVRA in May 2019. At September 30, 2021, our physical inventory for TEGSEDI and WAYLIVRA included API that we produced prior to when we obtained regulatory approval. As such, this API has no cost basis as we had previously expensed the costs as R&amp;D expenses.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We review our inventory periodically and reduce the carrying value of items we consider to be slow moving or obsolete to their estimated net realizable value based on forecasted demand compared to quantities on hand. We consider several factors in estimating the net realizable value, including shelf life of our inventory, alternative uses for our medicines in development and historical write-offs. For the nine months ended&#160;September 30, 2021 and 2020, we recorded an immaterial amount of inventory write-offs.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our inventory consisted of the following (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z2797308125a14c86aa5621d5f05e5205" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Raw materials:</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 19.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Raw materials- clinical</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11,993</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; text-indent: -18pt; margin-left: 28.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Raw materials- commercial</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total raw materials</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Work in process</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,183</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,252</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Finished goods</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">607</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3,005</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; padding-bottom: 4px;" valign="bottom"><div style="text-align: justify; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total inventory</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">22,930</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,965</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div style="text-align: left;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Leases</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We determine if an arrangement contains a lease at inception. We currently only have operating leases. We recognize a right-of-use operating lease asset and associated short- and long-term operating lease liability on our condensed consolidated balance sheet for operating leases greater than one year. Our right-of-use assets represent our right to use an underlying asset for the lease term and our lease liabilities represent our obligation to make lease payments arising from the lease arrangement. We recognize our right-of-use operating lease assets and lease liabilities based on the present value of the future minimum lease payments we will pay over the lease term. We determine the lease term at the inception of each lease, and in certain cases our lease term could include renewal options if we concluded we were reasonably certain that we will exercise the renewal option. When we exercise a lease option that was not previously included in the initial lease term, we reassess our right-of-use asset and lease liabilities for the new lease term.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As our current leases do not provide an interest rate implicit in the lease, we used our incremental borrowing rate, based on the information available on the date we adopted Topic 842 (January 2019), as of the lease inception date or at the lease option extension date in determining the present value of future payments. We recognize rent expense for our minimum lease payments on a straight-line basis over the expected term of our lease. We recognize period expenses, such as common area maintenance expenses, in the period we incur the expense.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In September 2021, we entered into an operating lease agreement for office space located in Boston, Massachusetts. We determined that the lease commencement date is the date in which the space is ready for our occupancy, which we expect will be in the fourth quarter of 2021. </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We are leasing this space under a non-cancelable operating lease with an initial term ending </span>91<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> months following the lease commencement date and an option to extend the lease for an additional </span>five-year<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> term. Under the lease agreement, we will receive a </span>seven-month<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> free rent period, which will commence on the lease commencement date. Our lease payments over the initial term total $</span>6.8<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million. We will recognize a right-of-use lease asset and lease liability in the fourth quarter of 2021 upon the lease commencement date. Since we did not have the right to occupy the premises as of September 30, 2021, there was no accounting impact in the third quarter.</span></div>

<div><br/></div>

<div style="text-align: justify; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Research, Development and Patent Expenses</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our research and development expenses include wages, benefits, facilities, supplies, external services, clinical trial and manufacturing costs and other expenses that are directly related to our research and development operations. We expense research and development costs as we incur them. When we make payments for research and development services prior to the services being rendered, we record those amounts as prepaid assets on our condensed consolidated balance sheet and we expense them as the services are provided.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We capitalize costs consisting principally of outside legal costs and filing fees related to obtaining patents. We amortize patent costs over the useful life of the patent, beginning with the date the U.S. Patent and Trademark Office, or foreign equivalent, issues the patent. </span>We review our capitalized patent costs regularly to ensure that they include costs for patents and patent applications that have future value. When we identify patents and patent applications that we are not actively pursuing, we write off any associated costs<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span></div>

<div><br/></div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Income Taxes</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We account for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In addition, deferred tax assets are recorded for the future benefit of utilizing net operating losses and research and development credit carryforwards. We record a valuation allowance when necessary to reduce our net deferred tax assets to the amount we expect to realize.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We evaluate our deferred tax assets regularly to determine whether adjustments to the valuation allowance are appropriate due to changes in facts or circumstances, such as changes in expected future pre-tax earnings, tax law, interactions with taxing authorities and developments in case law. In making this evaluation, we rely on our recent history of pre-tax earnings. Our material assumptions are our forecasts of future pre-tax earnings and the nature and timing of future deductions and income represented by the deferred tax assets and liabilities, all of which involve the exercise of significant judgment.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We assessed our valuation allowance requirements and recorded a valuation allowance against all of Ionis&#8217; U.S. federal net deferred tax assets in the fourth quarter of 2020, due to uncertainties related to our ability to realize the tax benefits associated with these assets. We based our determination largely on Akcea rejoining the Ionis U.S. consolidated federal tax group in the fourth quarter of 2020. Due to Akcea&#8217;s historical and projected financial statement losses, and the negative impact we expect this to have on Ionis&#8217; consolidated taxable income, there is uncertainty of generating sufficient consolidated pre-tax income in future periods to realize the Ionis deferred tax benefits. We also expect that Ionis&#8217; pre-tax income in future periods may be lower due to increased research and development expenses associated with our pipeline of wholly owned medicines. We continue to maintain a valuation allowance against all our consolidated U.S. federal and state net deferred tax assets.</div>

<div><br/></div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Long-lived Assets</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We evaluate long-lived assets, which include property, plant and equipment and patent costs, for impairment on at least a quarterly basis and whenever events or changes in circumstances indicate that we may not be able to recover the carrying amount of such assets.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Use of Estimates</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We prepare our condensed consolidated financial statements in conformity with accounting principles generally accepted in the </span>U.S. that require us to make estimates and assumptions that affect the amounts reported in our condensed consolidated financial statements and accompanying notes. Actual results could differ from our estimates.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic and Diluted Net Loss Per Share</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Basic net loss per share</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the three and nine months ended&#160;September 30, 2021 by dividing our net loss by our weighted-average number of common shares outstanding during the period. For the first nine months of 2021, we did not have to consider Akcea results separately in our calculation because we owned 100 percent of Akcea for the entire period. Our basic net loss per share for the three and nine months ended September 30, 2021 was $0.58 and $1.80, respectively.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In the third quarter of 2020, prior to the Akcea Merger, we calculated our basic net loss per share for the three and nine months ended&#160;September 30, 2020 by calculating our net loss for Ionis on a stand-alone basis plus our share of Akcea&#8217;s net loss for the period to determine our total net loss attributable to our common stockholders. To calculate the portion of Akcea&#8217;s net loss attributable to our ownership, we multiplied Akcea&#8217;s net loss per share by the weighted average shares we owned in Akcea during the period. As a result of this calculation, our total net loss available to Ionis common stockholders for the calculation of net loss per share is different than our net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders in the condensed consolidated statements of operations.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the three months ended September 30, 2020 as follows (in thousands, except per share amounts):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z6e0bd4e1d49640db8eda4dfa200753da" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three months ended September 30, 2020</div></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Weighted</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Average Shares</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Owned in Akcea</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Akcea&#8217;s</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Per Share</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss Per</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Share Calculation</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; portion of Akcea&#8217;s net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">77,095</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.49</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(37,822</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Akcea&#8217;s net loss attributable to our ownership</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(37,822</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; stand-alone net income</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13,251</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss available to Ionis common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(24,571</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Weighted average shares outstanding</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.18</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#160;</span>September 30, 2020 as follows (in thousands, except per share amounts):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z829b7fd73abe4d0c8c02eb55723b4acb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine months ended September 30, 2020</div></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Weighted</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Average Shares</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Owned in Akcea</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Akcea&#8217;s</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Per Share</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss Per</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Share Calculation</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; portion of Akcea&#8217;s net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">77,095</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1.40</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(108,176</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Akcea&#8217;s net loss attributable to our ownership</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(108,176</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; stand-alone net income</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">18,235</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss available to Ionis common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(89,941</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Weighted average shares outstanding</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">139,497</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.64</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z729f964a8a84426883f8b1deee9b51f1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Diluted net loss per share</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the three and nine months ended&#160;September 30, 2021 and 2020, we incurred a net loss; therefore, we did not include dilutive common equivalent shares in the computation of diluted net loss per share because the effect would have been anti-dilutive. Common stock from the following would have had an anti-dilutive effect on net loss per share:</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z43d84bc7ea3844d0ab074f4aa14288ed" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.125 percent convertible senior notes, or 0.125% Notes;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc1d1cebf8f2943f58e6a0bab1688a49b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Note hedges related to the 0.125% Notes;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z59e22ca8a35544a79ebbedf7c6346417" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1 percent convertible senior notes, or 1% Notes;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z539f9c2b28eb4676a4b27d0fbf14f0cb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dilutive stock options;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7a3ed3c754f540b493056e2df93ae913" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unvested restricted stock units, or RSUs;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z275182c1f5ad46399f780e650f2fef54" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unvested performance restricted stock units, or PRSUs; and</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z60f2bd6315a04ca196589bd19dee4ef2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Employee Stock Purchase Plan, or ESPP.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the three and nine months ended&#160;September 30, 2021, common stock from the following would also have had an anti-dilutive effect on net loss per share:</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z250741ef32e94c51a4bb935fd455314d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0 percent convertible senior notes, or 0% Notes; and</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z9eb4d5480810437bad6ba3b4e0c58082" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Note hedges related to the 0% Notes.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additionally as of September 30, 2021, we had warrants related to our 0% and 0.125% Notes outstanding. We will include the shares issuable under these warrants in our calculation of diluted earnings per share when the average market price per share of our common stock for the reporting period exceeds the strike price of the warrants.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Convertible Debt</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Adoption of ASU 2020-06</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In August 2020, the FASB issued ASU 2020-06, which simplifies</span> the accounting for convertible debt instruments<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, amends the guidance on derivative scope exceptions for contracts in an entity&#8217;s own equity, and modifies the guidance on diluted earnings per share calculations. We adopted ASU 2020-06 on January 1, 2021 under the full retrospective approach, which required us to revise our prior period financial statements. This guidance impacted our accounting for outstanding convertible debt. At January 1, 2021, we had </span>two<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> outstanding convertible notes, our </span>0.125%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes, which mature in December 2024, and our </span>1%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes, which mature in November 2021. In April 2021, we completed a $</span>632.5<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million offering of </span>0%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes primarily to repurchase a majority of our </span>1%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes. We accounted for our </span>0%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes under ASU 2020-06 at issuance. Refer to Note 6, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Convertible Debt</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, for further information.</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The updated guidance eliminates the cash conversion accounting model we previously followed in Accounting Standard Codification, or ASC, 470-20, which required us to separate each of our convertible debt instruments at issuance into two units of accounting, a liability component, based on our nonconvertible debt borrowing rate at issuance, and an equity component. Under ASU 2020-06, we now account for each of our convertible debt instruments as a single unit of accounting, a liability, because we concluded that the conversion features do not require bifurcation as a derivative under ASC 815-15 and our convertible debt instruments were not issued at a substantial premium. Since we adopted ASU 2020-06 using the full retrospective approach, we were required to apply the guidance to all convertible debt instruments we had outstanding as of January 1, 2019. We recomputed the basis of each convertible debt instrument as if we accounted for each as a single unit of accounting at issuance. This update included recalculating the amortization of debt issuance costs using an updated effective interest rate. As a result of adopting ASU 2020-06, we recorded a cumulative adjustment to decrease our additional paid in capital and our accumulated deficit at January 1, 2019. We have updated these financial statements to reflect the cumulative adjustment for the periods presented. We have labeled our prior period financial statements &#8220;as revised&#8221; to indicate the change required under the new accounting guidance. Below is a summary of the change in our balance sheet at December 31, 2020 and statement of operations from the three and nine months ended&#160;September 30, 2020 under the ASC 470-20 legacy guidance compared to the new ASU 2020-06 guidance we adopted:</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the adjustments we made to the condensed consolidated balance sheet we originally reported at December 31, 2020 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z61ca4ada3097492594c0401d2ef05dfb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1 percent convertible senior notes</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">293,161</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,648</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">308,809</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.125 percent convertible senior notes</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">455,719</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">84,417</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">540,136</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,113,646</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,127</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,895,519</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,249,368</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">118,062</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,131,306</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under ASU 2020-06, our revised ending balances for our 1% Notes and 0.125% Notes as of December 31, 2020 represent the principal balance of each convertible debt instrument less debt issuance costs. Additionally, because we have deferred tax assets related to our convertible debt instruments, we also adjusted these amounts as part of our adoption of ASU 2020-06. However, because we have a full valuation allowance on our deferred tax assets, there was no impact to our condensed consolidated balance sheet related to our deferred tax assets.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following tables summarize the adjustments we made to the condensed consolidated statement of operations we originally reported for the three and nine months ended&#160;September 30, 2020 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="zcc869176fe1c47c983c609f000d19db2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended September 30, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(11,321</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8,893</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,428</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss before income tax expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(40,443</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8,893</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(31,550</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income tax expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,648</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,416</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(5,064</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(43,091</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,477</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(36,614</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(30,944</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,477</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(24,467</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic and diluted net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.22</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.04</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.18</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z2f5855359501402b9fbfba586eb0b9b9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended September 30, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(33,484</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26,408</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(7,076</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss before income tax benefit (expense)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(146,387</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26,408</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(119,979</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income tax benefit (expense)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,047</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(5,124</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(4,077</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(145,340</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,284</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(124,056</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(111,015</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,284</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(89,731</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic and diluted net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.80</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.16</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.64</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under ASU 2020-06, our revised interest expense is lower because we are no longer recording non-cash interest expense related to a debt discount. This decrease was partially offset by the increase in interest expense related to the amortization of debt issuance costs because we no longer allocate a portion of our debt issuance costs to stockholders&#8217; equity at issuance. Instead, the entire debt issuance costs were recorded as a contra-liability on our condensed consolidated balance sheet at issuance and we are amortizing them over the contractual term using an updated effective interest rate. Our updated effective interest rates for our 1% Notes and 0.125% Notes were 1.4 percent and 0.5 percent, respectively.</div>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following tables summarize the adjustments we made to our condensed consolidated statements of stockholders&#8217; equity we originally reported at December 31, 2020 and 2019 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z5aeb3ee1a3364575838aa3c32258a09d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,113,646</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,127</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,895,519</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,249,368</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">118,062</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,131,306</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total stockholders&#8217; equity</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">843,347</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(100,065</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">743,282</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="zcfa210d3757e446eba979459832059ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2019</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,203,778</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,128</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,985,650</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(707,534</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">111,039</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(596,495</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total stockholders&#8217; equity</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,684,547</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(107,089</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
</table>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Call Spread</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In conjunction with the issuance of our 0% Notes and 0.125% Notes in April 2021 and December 2019, respectively, we entered into call spread transactions, which were comprised of purchasing note hedges and selling warrants. We account for the note hedges and warrants as separate freestanding financial instruments and treat each instrument as a separate unit of accounting. We determined that the note hedges and warrants do not meet the definition of a liability using the guidance contained in ASC Topic 480, therefore we account for the note hedges and warrants using the Derivatives and Hedging &#8211; Contracts in Entity&#8217;s Own Equity accounting guidance contained in ASC Topic 815. We determined that the note hedges and warrants meet the definition of a derivative, are indexed to our stock and meet the criteria to be classified in shareholders&#8217; equity. We recorded the aggregate amount paid for the note hedges and the aggregate amount received for the warrants as additional paid-in capital in our condensed consolidated balance sheet. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#8217; equity at each reporting period.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Segment Information</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In 2021, we began operating as a single segment, Ionis operations, because our chief decision maker reviews operating results on an aggregate basis and manages our operations as a single operating segment. Previously, we had operated as two operating segments, Ionis Core and Akcea Therapeutics. We completed the Akcea Merger in October 2020 and fully integrated Akcea&#8217;s operations into ours as of January 1, 2021.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Stock-based Compensation Expense</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We measure stock-based compensation expense for equity-classified awards, principally related to stock options, RSUs, PRSUs and stock purchase rights under our ESPP based on the estimated fair value of the award on the date of grant. We recognize the value of the portion of the award that we ultimately expect to vest as stock-based compensation expense over the requisite service period in our condensed consolidated statements of operations. We reduce stock-based compensation expense for estimated forfeitures at the time of grant and revise in subsequent periods if actual forfeitures differ from those estimates. We use the Black-Scholes model to estimate the fair value of stock options granted and stock purchase rights under our ESPP.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">On the grant date, we use our stock price and assumptions regarding a number of variables to determine the estimated fair value of stock-based payment awards. These variables include, but are not limited to, our expected stock price volatility over the term of the awards, and actual and projected employee stock option exercise behaviors.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize compensation expense for stock options granted, RSUs, PRSUs and stock purchase rights under the ESPP using the accelerated multiple-option approach. Under the accelerated multiple-option approach (also known as the graded-vesting method), we recognize compensation expense over the requisite service period for each separately vesting tranche of the award as though the award were in substance multiple awards, which results in the expense being front-loaded over the vesting period.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we amended and restated the Akcea 2015 equity plan, including renaming the plan as the Ionis Pharmaceuticals, Inc. 2020 Equity Incentive Plan, or 2020 Plan. As a result, all employees are now under an Ionis stock plan and subject to the same Black-Scholes assumptions.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the nine months ended&#160;September 30, 2021 and 2020, we used the following weighted-average assumptions in our Black-Scholes calculations:</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Employee Stock Options:</div>

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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Risk-free interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dividend yield</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
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  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Volatility</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expected life</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.9 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.7 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Ionis Board of Director Stock Options:</div>

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  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Risk-free interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dividend yield</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Volatility</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">55.9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expected life</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.3 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6.7 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">ESPP:</div>

<table cellpadding="0" cellspacing="0" id="z4775cbab309e4daebc6523679daa2ac5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">RSU&#8217;s:</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The fair value of RSUs is based on the market price of our common stock on the date of grant. The RSUs we have granted to employees vest annually over a four-year period. The RSUs we granted to our board of directors prior to June 2020 vest annually over a four-year period. RSUs granted after June 2020 to our board of directors fully vest after one year. The weighted-average grant date fair value of RSUs granted to employees and our board of directors for the nine months ended&#160;September 30, 2021 was $59.15 and $39.42 per share, respectively.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">PRSU&#8217;s:</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning in 2020, we added PRSU awards to the compensation for our Chief Executive Officer, Dr. Brett Monia. Under the terms of the grants, <span style="-sec-ix-hidden:Fact_3ea144f70898401099a1731ad0c7e39f"><span style="-sec-ix-hidden:Fact_b531c97d5a394e3f8a5454ecd82ddb93"><span style="-sec-ix-hidden:Fact_b2b6dbe875764e78b9cce0b8464216dd">one third</span></span></span> of the PRSUs may vest at the end of three separate performance periods spread over the three years following the date of grant (i.e., the one-year period commencing on the date of grant and ending on the first anniversary of the date of grant; the two-year period commencing on the date of grant and ending on the second anniversary of the date of grant; and the three-year period commencing on the date of grant and ending on the third anniversary of the date of grant) based on our relative total shareholder return, or TSR, as compared to a peer group of companies, and as measured, in each case, at the end of the applicable performance period. Under the terms of the grants no number of PRSUs is guaranteed to vest and the actual number of PRSUs that will vest at the end of each performance period may be anywhere from zero percentto 150 percent of the target number depending on our relative TSR.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We determined the fair value of Dr. Monia&#8217;s PRSUs using a Monte Carlo model because the performance target is based on our relative TSR, which represents a market condition. We are recognizing the grant date fair value of these awards as stock-based compensation expense using the accelerated multiple-option approach over the vesting period. The weighted-average grant date fair value of PRSUs granted to Dr. Monia for the nine months ended&#160;September 30, 2021 was $77.17 per share.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes stock-based compensation expense for the three and nine months ended&#160;September 30, 2021 and 2020 (in thousands).</div>

<div><br/></div>

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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">315</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">902</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">25,359</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">76,931</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7,094</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">20,171</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26,147</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">57,244</div></td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 18pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total non-cash stock-based compensation expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">30,537</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">45,845</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">98,419</div></td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">135,077</div></td>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As of September 30, 2021, total unrecognized estimated non-cash stock-based compensation expense related to non-vested stock options, RSUs and PRSUs was $65.3 million, $72.2 million and $2.5 million, respectively. Our actual expenses may differ from these estimates because we will adjust our unrecognized non-cash stock-based compensation expense for future forfeitures. We expect to recognize the cost of non-cash stock-based compensation expense related to our non-vested stock options, RSUs and PRSUs over a weighted average amortization period of 1.2 years, 1.4 years and 1.2 years, respectively.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Amendments to Equity Plans</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">2020 Equity Incentive Plan</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In the second quarter of 2021, our Compensation Committee approved an amendment to the 2020 Plan. The amendment decreased the total number of shares of common stock authorized for issuance under the 2020 Plan from approximately 2.6 million to 1.6 million. We assumed the 2020 Plan in connection with Ionis&#8217; reacquisition of all of the outstanding shares of Akcea Therapeutics, Inc. as part of the Akcea Merger.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">2011 Equity Incentive Plan</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In the second quarter of 2021, after receiving approval from our stockholders, we amended our 2011<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Equity Incentive Plan, or 2011 Plan. The amendment increased the total number of shares of common stock authorized for issuance under the 2011 Plan from </span>23.0<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million to </span>29.7<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million and added a fungible share counting ratio whereby the share reserve will be reduced by </span>1.7<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> shares for each share of common stock issued pursuant to a full value award (i.e., RSU or PRSU) and increased by </span>1.7<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> shares for each share of common stock returning from a full value award.</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Impact of Recently Issued Accounting Standards</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As disclosed in the &#8220;Convertible Debt&#8221; policy above within this footnote, we adopted the simplified accounting for convertible debt instrument guidance (ASU 2020-06) on January 1, 2021. Refer to the section above for the impact of adoption. We do not expect any other recently issued accounting standards to have a material impact to our financial results.</div>
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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">3.&#160; Investments</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the contract maturity of the available-for-sale securities we held as of September 30, 2021:</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z7875b171477b495f9658297c72093cc6" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As illustrated above, at September 30, 2021, 84 percent of our available-for-sale securities had a maturity of less than two years.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">All of our available-for-sale securities are available to us for use in our current operations. As a result, we categorize all of these securities as current assets even though the stated maturity of some individual securities may be one year or more beyond the balance sheet date.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We invest in available-for-sale securities</span> with strong credit ratings and an investment grade rating at or above A-1, P-1 or F-1 by Standard &amp; Poor&#8217;s, or S&amp;P, Moody&#8217;s or Fitch, respectively.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had an ownership interest of less than 20 percent in seven private companies and three public companies with which we conduct business. The privately held companies are Aro Biotherapeutics, Atlantic Pharmaceuticals Limited, Dynacure SAS, Empirico, Inc., Flamingo Therapeutics BV, YourBio Health, Inc. and Suzhou-Ribo Life Science Co, Ltd. The publicly traded companies are Antisense Therapeutics Ltd., Bicycle and ProQR.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following is a summary of our investments (in thousands):</div>

<div style="text-align: left;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </span><br/></div>

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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Gains</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Losses</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
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    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Available-for-sale securities:</span></div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
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    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">447,173</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,338</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">83,719</div></td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">89,267</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">141,161</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">103</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(30</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">141,234</div></td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5,028</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5,026</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of one year or less</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">766,259</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,547</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(91</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">767,715</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">366,907</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,181</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(475</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">367,613</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">73,028</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(120</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">72,909</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">98,499</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">245</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(88</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">98,656</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">41,167</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">41,110</div></td>
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  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(26</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,143</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of more than one year</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">585,770</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,435</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">586,431</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,352,029</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,982</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(865</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,354,146</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Equity securities:</span></div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in other current assets (3)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11,897</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,935</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(663</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13,169</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in deposits and other assets (4)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,615</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">16,707</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">32,322</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">27,512</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">18,642</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(663</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">45,491</div></td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale and equity securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,379,541</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z33e9b010a5e2449c941f1c3d8b9c3093" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"><span style="text-indent: 0pt;">December 31, 2020</span></div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
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    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">514,182</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(41</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">516,335</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">94,234</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">354</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">94,586</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">307,576</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">233</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">307,800</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">104,271</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">196</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(12</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">104,455</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5,191</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5,184</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of one year or less</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,025,454</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,977</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(71</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,028,360</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
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  <tr>
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  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of more than one year</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in other current assets (3)</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,681</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,031</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in deposits and other assets (4)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,062</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,938</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">31,000</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">19,774</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,938</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,681</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">33,031</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale and equity securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,533,544</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">24,515</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,821</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,555,238</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z3af82d0b45504dc9983904fc4cb00fa4" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1)</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We hold our available-for-sale securities at amortized cost.</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zd9e1b1908ec84f56ae4070a0957574fa" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2)</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Includes investments classified as cash equivalents on our condensed consolidated balance sheet.</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z8cb4ac74b1864ccbac9a78ae57086c95" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(3)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our equity securities included in other current assets consisted of our investments in two publicly traded companies, ProQR and Bicycle, which we classify as Level 1 and Level 3 investments, respectively. We recognize publicly traded equity securities at fair value. In the nine months ended September 30, 2021, we recognized a $1.9 million unrealized gain and a $0.7 million unrealized loss on our condensed consolidated statement of operations related to our investments in Bicycle and ProQR, respectively. In the nine months ended September 30, 2020, our equity securities included in other current assets only consisted of ProQR.</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z94898b868e5c48bba965b5b41b92fc37" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(4)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Our equity securities included in deposits and other assets consisted of our investments in privately held companies. We recognize our private company equity securities at</span> cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span></div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The following is a summary of our investments we consider to be temporarily impaired at </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> (in thousands, except for number of investments). </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">All of these investments have less than 12 months of temporary impairment.</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> We believe that the decline in value of these securities is temporary and is primarily related to the change in market interest rates since purchase. We believe it is more likely than not that we will be able to hold our debt securities to maturity. Therefore, we anticipate full recovery of our debt securities&#8217; amortized cost basis at maturity.</span></div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z1617be40885346a092e44a5e8a925db5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Number of</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Investments</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Estimated</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Fair Value</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Unrealized</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Losses</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">158</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">334,828</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(525</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">103,460</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(127</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">75,009</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(90</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">432</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">123,489</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823802936">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Fair Value Measurements<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">4.&#160; Fair Value Measurements</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We use a three-tier fair value hierarchy to prioritize the inputs used in our fair value measurements. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical assets, which includes our money market funds and treasury securities classified as available-for-sale securities and our investment in equity securities in publicly held biotechnology companies; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable, which includes our fixed income securities and commercial paper classified as available-for-sale securities; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring us to develop our own assumptions. We classify most of our securities as Level 2. We obtain the fair value of our Level 2 investments from our custodian bank or from a professional pricing service. We validate the fair value of our Level 2 investments by understanding the pricing model used by the custodian banks or professional pricing service provider and comparing that fair value to the fair value based on observable market prices.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The following tables present the major security types we held at </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> that we regularly measure and carry at fair value. As of </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">our Bicycle investment was subject to trading restrictions that extend to the third quarter of 2022; as a result, we included a lack of marketability discount in valuing this investment, which is a Level 3 input. </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">As of </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span>we did not have any investments that we valued using Level 3 inputs<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. The following tables segregate each security type by the level within the fair value hierarchy of the valuation techniques we utilized to determine the respective securities&#8217; fair value (in thousands):</span></div>

<div><br/></div>

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    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">At</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Quoted Prices in</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Active Markets</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Level 1)</div></td>
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Significant</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Unobservable Inputs</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Level 3)</div></td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">545,339</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">545,339</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">816,074</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">816,074</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies (2)</div></td>
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  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  <tr>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4,049</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4,049</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9,120</div></td>
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<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z8685d6d12380471680284300fc5d34af" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 8pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">At</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Significant Other</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Observable Inputs</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Level 2)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">221,125</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">221,125</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities (4)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">846,315</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">358,497</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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<div><br/></div>

<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following footnotes reference lines on our condensed consolidated balance sheet:</div>

<div><br/></div>

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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Included in cash and cash equivalents on our condensed consolidated balance sheet.</div></td>
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<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2ed426559d364394a23d648cafbc5731" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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<div><br/></div>

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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(3)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Included in other current assets on our condensed consolidated balance sheet.</div></td>
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<div><br/></div>

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<div><br/></div>

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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(5)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$17.5 million included in cash and cash equivalents on our condensed consolidated balance sheet, with the difference included in short-term investments on our condensed consolidated balance sheet.</div></td>
  </tr>
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<div><br/></div>

<div style="text-align: left; margin-left: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Convertible Notes</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our 1% Notes, 0.125% Notes and 0% Notes had a fair value of $61.9 million, $504.3 million and $581.4 million at September 30, 2021, respectively. We determine the fair value of our notes based on quoted market prices for these notes, which are Level 2 measurements because the notes do not trade regularly.</div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823673512">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Collaborative Arrangements and Licensing Agreements<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CollaborativeArrangementDisclosureTextBlock', window );">Collaborative Arrangements and Licensing Agreements</a></td>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">5.&#160; Collaborative Arrangements and Licensing Agreements</div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Below, we have included our Biogen and Novartis collaborations, which are our only collaborations with substantive changes during </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">2021</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> from those included in Note 6 of our audited financial statements included in our Annual Report on Form 10-K for the year ended </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">December 31, 2020</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span></div>

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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Strategic Partnership</div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Biogen</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have several strategic collaborations with Biogen focused on using antisense technology to advance the treatment of neurological disorders. These collaborations combine our expertise in creating antisense medicines with Biogen&#8217;s expertise in developing therapies for neurological disorders. We developed and licensed to Biogen SPINRAZA, our approved medicine to treat people with spinal muscular atrophy, or SMA. We and Biogen are currently developing eight investigational medicines to treat neurodegenerative diseases under these collaborations, including medicines in development to treat people with ALS, Alzheimer&#8217;s disease<sub>&#160;</sub>and Parkinson&#8217;s disease. In addition to these medicines, our collaborations with Biogen include a substantial research pipeline that addresses a broad range of neurological diseases. From inception through September 30, 2021, we have received more than $3.0 billion from our Biogen collaborations.</div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">During the three and nine months ended September 30, 2021 and 2020, we earned the following revenue from our relationship with Biogen (in millions, except percentage amounts):</div>

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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -27pt; margin-left: 27pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">SPINRAZA royalties (commercial revenue)</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">R&amp;D revenue</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">17.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">51.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">63.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">98.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 27pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total revenue from our relationship with Biogen</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">84.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 27.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Percentage of total revenue</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">63</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">78</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">71</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">71</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our condensed consolidated balance sheet at September 30, 2021 and December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#160;</span>included deferred revenue of $412.5 million and $465.8 million, respectively, related to our relationship with Biogen.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">During the first nine months of 2021, we did not have any changes to our performance obligations, transaction price or the timing in which we expect to recognize revenue under our Biogen collaborations.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we earned a $10 million milestone payment from Biogen when Biogen advanced ION541, an investigational medicine targeting ATXN2 to treat patients with ALS. We recognized the milestone payment in full in the second quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment. We will achieve the next payment of $8 million if Biogen advances one of the medicines under our 2013 strategic neurology collaboration.</div>

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<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Research, Development and Commercialization Partner</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Novartis</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In January 2017, we initiated a collaboration with Novartis to develop and commercialize pelacarsen. In February 2019, Novartis licensed pelacarsen. Novartis is responsible for conducting and funding future development and regulatory activities for pelacarsen, including a global Phase 3 cardiovascular outcomes study that Novartis initiated in the fourth quarter 2019. In connection with Novartis&#8217; license of pelacarsen, we and Novartis established a more definitive framework under which the companies would negotiate the co-commercialization of pelacarsen in selected markets. Included in this framework is an option by which Novartis could solely commercialize pelacarsen in exchange for Novartis paying us increased sales milestone payments based on sales of pelacarsen. </span>From inception through September 30, 2021, we have received $425 million from our Novartis collaboration.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In August 2021, we earned a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We recognized the milestone payment in full in the third quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment. We will achieve the next payment of up to $75 million if Novartis advances regulatory activities for pelacarsen.</div>

<div><br/></div>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Technology Enhancement Collaboration</div>

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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Bicycle License Agreement</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we entered into a collaboration agreement with Bicycle and obtained an option to license its peptide technology to potentially increase the delivery capabilities of our LIgand Conjugated Antisense, or LICA, medicines. In July 2021, we paid $42 million when we exercised our option to license Bicycle&#8217;s technology, which included an equity investment in Bicycle. As part of our stock purchase, we entered into a lockup agreement with Bicycle that restricts our ability to trade our Bicycle shares for one year. In the third quarter of 2021, we recorded a $7.2 million equity investment for the shares we received in Bicycle. We recognized the remaining $34.8 million as R&amp;D expense in the third quarter of 2021. From inception through September 30, 2021, we have paid $45 million under our collaboration agreement with Bicycle.</div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504824033624">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Convertible Debt<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureTextBlock', window );">Convertible Debt</a></td>
<td class="text">
<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">6. Convertible Debt</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">0 Percent</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Convertible Senior Notes and Call Spread</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we completed a $632.5 million offering of convertible senior notes. We used a portion of the net proceeds from the issuance of the 0% Notes to repurchase $247.9 million in principal of our 1% Notes for $257.0 million.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">0%</span> Notes outstanding (amounts in millions except interest rate and price per share data):</div>

<div><br/></div>

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  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">0%</span> Notes</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Outstanding principal balance</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">632.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unamortized debt issuance costs</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Maturity date</div></td>
    <td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="-sec-ix-hidden:Fact_109f9369bddf4793b7c1ba8f66869fde">April 2026</span></div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
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    <td style="vertical-align: top;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0 percent</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5 percent</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversion price per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">57.84</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective conversion price per share with call spread</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">76.39</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
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    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total shares of common stock subject to conversion</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10.9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In conjunction with the April 2021 offering, we entered into a call spread transaction, which was comprised of purchasing note hedges and selling warrants, to minimize the impact of potential economic dilution upon conversion of our 0% Notes by increasing the effective conversion price on our 0% Notes. We increased our effective conversion price to $76.39 with the same number of underlying shares as our 0% Notes. The call spread cost us $46.9 million, of which $136.7 million was for the note hedge purchase, offset by $89.8 million we received for selling the warrants. Similar to our 0% Notes, our note hedges are subject to adjustment. Additionally, our note hedges are exercisable upon conversion of the 0% Notes. The note hedges will expire upon maturity of the 0% Notes, or April 2026. The note hedges and warrants are separate transactions and are not part of the terms of our 0% Notes. The holders of the 0% Notes do not have any rights with respect to the note hedges and warrants.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recorded the amount we paid for the note hedges and the amount we received for the warrants in additional paid-in capital in our condensed consolidated balance sheet. See our Call Spread accounting policy in Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, in the Notes to the Condensed Consolidated Financial Statements. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#8217; equity at each reporting period.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">0.125 Percent Convertible Senior Notes and Call Spread</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following 0.125% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z935b910ae74347ea89d8185168cb25be" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">0.125% Notes</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Outstanding principal balance</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">548.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unamortized debt issuance costs</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Maturity date</div></td>
    <td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="-sec-ix-hidden:Fact_c5b254d960d242d380e7e1f35dc8b7ec">December 2024</span></div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.125 percent</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5 percent</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversion price per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">83.28</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective conversion price per share with call spread</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">123.38</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total shares of common stock subject to conversion</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In conjunction with the issuance of our </span>0.125%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes in December 2019, we entered into a call spread transaction, which was comprised of purchasing note hedges and selling warrants, to minimize the impact of potential economic dilution upon conversion of our </span>0.125% Notes by increasing the effective conversion price on our 0.125% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. We increased our effective conversion price to $</span>123.38<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> with the same number of underlying shares as our </span>0.125%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes. The call spread cost us $</span>52.6<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million, of which $</span>108.7<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million was for the note hedge purchase, offset by $</span>56.1<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million we received for selling the warrants. Similar to our </span>0.125% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, our note hedges are subject to adjustment. Additionally, our note hedges are exercisable upon conversion of the </span>0.125% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. The note hedges will expire upon maturity of the </span>0.125% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, or December 2024. The note hedges and warrants are separate transactions and are not part of the terms of our </span>0.125% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. The holders of the </span>0.125% Notes<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> do not have any rights with respect to the note hedges and warrants.</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recorded the amount we paid for the note hedges and the amount we received for the warrants in additional paid-in capital in our condensed consolidated balance sheet. See our Call Spread accounting policy in Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, in the Notes to the Condensed Consolidated Financial Statements. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#8217; equity at each reporting period.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">1 Percent Convertible Senior Notes</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following 1% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):</div>

<div><br/></div>

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    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1 percent</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we repurchased $247.9 million in aggregate principal amount of our 1% Notes in privately negotiated transactions. As a result of the repurchase, we recognized an $8.6 million non-cash loss on early retirement of debt, reflecting the early retirement of a significant portion of our 1% Notes. The non-cash loss on the early retirement of our debt is the difference between the amount paid to retire our 1% Notes and the net carrying balance of the liability at the time that we retired the debt.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Other Terms of Convertible Senior Notes</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The 0%, 0.125% and 1% Notes are convertible under certain conditions, at the option of the note holders. We can settle conversions of the notes, at our election, in cash, shares of our common stock or a combination of both. We may not redeem the notes prior to maturity, and we do not have to provide a sinking fund for them. Holders of the notes may require us to purchase some or all of their notes upon the occurrence of certain fundamental changes, as set forth in the indentures governing the notes, at a purchase price equal to 100 percent of the principal amount of the notes to be purchased, plus any accrued and unpaid interest.</div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823255336">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Severance and Retention Costs<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="text">&#160;<span></span>
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<td class="text">
<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">7. Severance and Retention Costs</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Akcea Merger</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As a result of the Akcea Merger in October 2020, we began recognizing severance and retention expenses in the fourth quarter of 2020. The following table summarizes our total estimated severance and retention expenses related to the Akcea Merger (in millions):</div>

<div><br/></div>

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    <td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expenses incurred from inception to September 30, 2021</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes our severance and retention expenses related to the Akcea Merger that we recognized during the three and nine months ended September 30, 2021 (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="ze5de025aab5946f4bbc66473886c29cf" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.3</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention reserve amounts related to the Akcea Merger that we included in accrued compensation for the period indicated (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z7852ad7d2f1442659c724b929efdae2c" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning balance as of January 1, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; text-indent: 16.7pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 16.7pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Reserve adjustments during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net amount expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts paid during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(20.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The reserve adjustments during the period primarily related to forfeitures of severance and retention payments as a result of employee terminations before they earned the amounts.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Restructured European Operations</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we entered into a distribution agreement with Sobi for TEGSEDI and WAYLIVRA in Europe. As a result, we restructured our European Operations, or Restructured European Operations. In the fourth quarter of 2020, we began recognizing severance and retention expenses related to our Restructured European Operations. The following table summarizes our total severance and retention expenses related to our Restructured European Operations (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z9be2de7500a0491aab6b3e3f46abbfc3" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Severance and</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Retention Expenses</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total estimated expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expenses incurred from inception to September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Remaining estimated expenses to be recognized through October 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention expenses related to our Restructured European Operations that we recognized during the three and nine months ended September 30, 2021 (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z62ae84ac4a404efaa62ebcc15aff9bae" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention reserve amounts related to our Restructured European Operations that we included in accrued compensation for the period indicated (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z398b1996f59c4d46b612fc0f55986a86" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning balance as of January 1, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">12.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; text-indent: 18.2pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 18.2pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Reserve adjustments during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net amount expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts paid during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(13.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The reserve adjustments during the period primarily related to tax expense adjustments.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Restructured North American TEGSEDI Operations</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we entered into a distribution agreement with Sobi for TEGSEDI in North America. Under the terms of the distribution agreement, we will retain the marketing authorizations for TEGSEDI in the U.S. and Canada. We will continue to supply commercial product to Sobi and manage regulatory and manufacturing processes, as well as relationships with key opinion leaders. We will also continue to lead the TEGSEDI global commercial strategy. Sobi will otherwise have responsibility for commercializing TEGSEDI in the U.S. and Canada.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In connection with restructuring our North American TEGSEDI operations, or Restructured North American TEGSEDI Operations, we enacted a plan to reorganize our Akcea workforce in North America to better align with the needs of our business and to focus on our wholly owned pipeline.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance expenses related to our Restructured North American TEGSEDI Operations that we recognized during the second quarter of 2021 (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="zef341a1ee1b841938437d2f593f97b1e" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">June 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.3</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognized all severance expenses related to our Restructured North American TEGSEDI Operations during the three months ended June 30, 2021.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance reserve amounts related to our Restructured North American TEGSEDI Operations that we included in accrued compensation for the period indicated (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z0f09e5d288f64f2eab0b8cf3ba594c84" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning balance as of January 1, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts paid during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(9.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(e))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -URI http://asc.fasb.org/topic&amp;trid=2175745<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504824178760">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation (Policies)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Basis of Presentation [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BasisOfAccountingPolicyPolicyTextBlock', window );">Basis of Presentation</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We prepared the unaudited interim condensed consolidated financial statements for the three and </span>nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#160;</span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> on the same basis as the audited financial statements for the year ended </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, with the exception of our retrospective adoption of Accounting Standards Update, or ASU, 2020-06, which simplifies</span> the accounting for convertible debt instruments<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. See Note 2, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Polices</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Convertible Debt, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">for details of our adoption of this guidance. We included all normal recurring adjustments in the financial statements, which we considered necessary for a fair presentation of our financial position at such dates and our operating results and cash flows for those periods. Our operating results for the interim periods may not be indicative of what our operating results will be for the entire year. For more complete financial information, these financial statements, and notes thereto, should be read in conjunction with the audited financial statements for the year ended </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission, or SEC.</span></div>
<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConsolidationPolicyTextBlock', window );">Consolidation</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In our condensed consolidated financial statements, we included the accounts of Ionis Pharmaceuticals, Inc. and the consolidated results of our wholly owned subsidiary, Akcea Therapeutics, Inc. and its wholly owned subsidiaries (&#8220;we&#8221;, &#8220;us&#8221; or &#8220;our&#8221;). We formed Akcea in December 2014. </span>In July 2017, Akcea completed an <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">initial public offering, or IPO, which reduced our ownership of Akcea&#8217;s common stock below </span>100 percent<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span>&#160;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In October 2020, we completed a merger transaction with Akcea such that following the completion of the merger, Akcea became our wholly owned subsidiary. We will refer to this transaction as the Akcea Merger throughout the remainder of this document. </span>We reflected changes in our ownership percentage in our financial statements as an adjustment to noncontrolling interest in the period the changes occurred.</div>
<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting.  The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=d3e5614-111684<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504824522184">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies (Policies)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
<tr class="re">
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<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock', window );">Revenue Recognition</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Revenue Recognition</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Our Revenue Sources</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We generally recognize revenue when we have satisfied all contractual obligations and are reasonably assured of collecting the resulting receivable. We are often entitled to bill our customers and receive payment from our customers in advance of recognizing the revenue. In the instances in which we have received payment from our customers in advance of recognizing revenue, we include the amounts in deferred revenue on our condensed consolidated balance sheet.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We earn commercial revenue primarily in the form of royalty payments on net sales of SPINRAZA. We will also recognize as commercial revenue sales milestone payments and royalties we earn under our other partnerships.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In April 2021, we began commercializing TEGSEDI in North America through a distribution agreement with Swedish Orphan Biovitrum AB, or Sobi. In January 2021, we began commercializing TEGSEDI and WAYLIVRA in Europe through a distribution agreement with Sobi. Under our agreements, we are responsible for supplying finished goods inventory to Sobi and Sobi is responsible for selling each medicine to the end customer. As a result of these agreements, we earn a distribution fee on net sales from Sobi for each medicine.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Prior to the second quarter of 2021 in North America, we sold TEGSEDI through exclusive distribution agreements with third-party logistics companies, or 3PLs, that took title to TEGSEDI. The 3PLs then distributed TEGSEDI to a specialty pharmacy and a specialty distributor, which we collectively refer to as wholesalers, who then distributed TEGSEDI to health care providers and patients. In the United States, or U.S., we had a single 3PL as our sole customer and in Canada we also had a single 3PL as our sole customer. Prior to 2021 in Europe, we sold TEGSEDI and WAYLIVRA to hospitals and pharmacies, which were our customers, using 3PLs as distributors.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our collaboration agreement with PTC Therapeutics International Limited, or PTC, PTC is responsible for commercializing TEGSEDI and WAYLIVRA in Latin America and Caribbean countries. In the third quarter of 2021, we earned a $4 million milestone payment from PTC when WAYLIVRA was approved in Brazil, which we included in TEGSEDI and WAYLIVRA revenue in our condensed consolidated statement of operations.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Research and development revenue under collaborative agreements</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We often enter into collaboration agreements to license and sell our technology on an exclusive or non-exclusive basis. Our collaboration agreements typically contain multiple elements, or performance obligations, including technology licenses or options to obtain technology licenses, research and development, or R&amp;D, services, and manufacturing services.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">See <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Note 5, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, for collaborations with substantive changes that occurred in 2021. Additionally, see </span>Note 6, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span>, in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for a summary of each of our material collaborative agreements.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Steps to Recognize Revenue</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We use a five-step process to determine the amount of revenue we should recognize and when we should recognize it. The five-step process is as follows:</div>

<div><br/></div>

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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">1.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Identify the contract</div></td>
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<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accounting rules require us to first determine if we have a contract with our partner, including confirming that we have met each of the following criteria:</div>

<div><br/></div>

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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We and our partner approved the contract and we are both committed to perform our obligations;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have identified our rights, our partner&#8217;s rights and the payment terms;</div></td>
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We have concluded that the contract has commercial substance, meaning that the risk, timing, or amount of our future cash flows is expected to change as a result of the contract; and</div></td>
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We believe collectability of the consideration is probable.</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z99f76379ac0943c59f09e766fd6d6bf1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;">2</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;">.</span></td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Identify the performance obligations</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We next identify our performance obligations, which represent the distinct goods and services we are required to provide under the contract. We typically have only one performance obligation at the inception of a contract, which is to perform R&amp;D services.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Often we enter into a collaboration agreement in which we provide our partner with an option to license a medicine in the future. We may also provide our partner with an option to request that we provide additional goods or services in the future, such as active pharmaceutical ingredient, or API. We evaluate whether these options are material rights at the inception of the agreement. If we determine an option is a material right, we will consider the option a separate performance obligation. Historically, we have concluded that the options we grant to license a medicine in the future or to provide additional goods and services as requested by our partner are not material rights because these items are contingent upon future events that may not occur and are not priced at a significant discount. When a partner exercises its option to license a medicine or requests additional goods or services, then we identify a new performance obligation for that item.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In some cases, we deliver a license at the start of an agreement. If we determine that our partner has full use of the license and we do not have any additional material performance obligations related to the license after delivery, then we consider the license to be a separate performance obligation.</div>

<div><br/></div>

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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">3.</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Determine the transaction price</div></td>
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<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We then determine the transaction price by reviewing the amount of consideration we are eligible to earn under the collaboration agreement, including any variable consideration. Under our collaboration agreements, consideration typically includes fixed consideration in the form of an upfront payment and variable consideration in the form of potential milestone payments, license fees and royalties. At the start of an agreement, our transaction price usually consists of only the upfront payment. We do not typically include any payments we may receive in the future in our initial transaction price because the payments are not probable and are contingent on certain future events. We reassess the total transaction price at each reporting period to determine if we should include additional payments in the transaction price.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Milestone payments are our most common type of variable consideration. We recognize milestone payments using the most likely amount method because we will either receive the milestone payment or we will not, which makes the potential milestone payment a binary event. The most likely amount method requires us to determine the likelihood of earning the milestone payment. We include a milestone payment in the transaction price once it is probable we will achieve the milestone event. Most often, we do not consider our milestone payments probable until we or our partner achieve the milestone event because the majority of our milestone payments are contingent upon events that are not within our control and/or are usually based on scientific progress which is inherently uncertain. For example, in the third quarter of 2021, we earned a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We did not consider the milestone payment probable until Novartis achieved the milestone event because it was contingent on Novartis&#8217; enrollment of patients and was not within our control. We recognized the milestone payment in full in the period the milestone event was achieved because we did not have any remaining performance obligations related to the milestone payment.</div>

<div><br/></div>

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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">4.</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Allocate the transaction price</div></td>
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<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Next, we allocate the transaction price to each of our performance obligations. When we have to allocate the transaction price to more than one performance obligation, we make estimates of the relative stand-alone selling price of each performance obligation because we do not typically sell our goods or services on a stand-alone basis. We then allocate the transaction price to each performance obligation based on the relative stand-alone selling price. We do not reallocate the transaction price after the start of an agreement to reflect subsequent changes in stand-alone selling prices.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We may engage a third party, independent valuation specialist to assist us with determining a stand-alone selling price for collaborations in which we deliver a license at the start of an agreement. We estimate the stand-alone selling price of these licenses using valuation methodologies, such as the relief from royalty method. Under this method, we estimate the amount of income, net of taxes, for the license. We then discount the projected income to present value. The significant inputs we use to determine the projected income of a license could include:</div>

<div><br/></div>

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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated future product sales;</div></td>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z15a09b020bd148239ed6a817dd4da4f8" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated royalties we may receive from future product sales;</div></td>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2523979e965643a4aad4d08b321a7edc" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated contractual milestone payments we may receive;</div></td>
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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated expenses we may incur;</div></td>
  </tr>
</table>

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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Estimated income taxes; and</div></td>
  </tr>
</table>

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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">A discount rate.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We typically estimate the selling price of R&amp;D services by using our internal estimates of the cost to perform the specific services. The significant inputs we use to determine the selling price of our R&amp;D services include:</div>

<div><br/></div>

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  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated number of internal hours we will spend performing these services;</div></td>
  </tr>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z029de365d800459bbc5513523f5a5a7d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of work we will perform;</div></td>
  </tr>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zbcf18559edbc4c7bbdf049dcd3b5fc34" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of work that we will contract with third parties to perform; and</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z5b2392fee3034e6daa12c05d913dce05" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The estimated cost of API we will use.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For purposes of determining the stand-alone selling price of the R&amp;D services we perform and the API we will deliver, accounting guidance requires us to include a markup for a reasonable profit margin.</div>

<div style="text-align: justify;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </span><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zaa266e1aaa6648d482a9511662ff6ba5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">5.</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Recognize revenue</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize revenue in one of two ways, over time or at a point in time. We recognize revenue over time when we are executing on our performance obligation over time and our partner receives benefit over time. For example, we recognize revenue over time when we provide R&amp;D services. We recognize revenue at a point in time when our partner receives full use of an item at a specific point in time. For example, we recognize revenue at a point in time when we deliver a license or API to a partner.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For R&amp;D services that we recognize over time, we measure our progress using an input method. The input methods we use are based on the effort we expend or costs we incur toward the satisfaction of our performance obligation. We estimate the amount of effort we expend, including the time we estimate it will take us to complete the activities, or costs we incur in a given period, relative to the estimated total effort or costs to satisfy the performance obligation. This results in a percentage that we multiply by the transaction price to determine the amount of revenue we recognize each period. This approach requires us to make numerous estimates and use significant judgement. If our estimates or judgements change over the course of the collaboration, they may affect the timing and amount of revenue that we recognize in the current and future periods.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following are examples of when we typically recognize revenue based on the types of payments we receive.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Commercial Revenue: SPINRAZA royalties and Licensing and other royalty revenue</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize royalty revenue, including royalties from SPINRAZA sales, in the period in which the counterparty sells the related product and recognizes the related revenue, which in certain cases may require us to estimate our royalty revenue.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Commercial Revenue: TEGSEDI and WAYLIVRA revenue, net</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our distribution agreements with Sobi we concluded that our performance obligation is to provide services to Sobi over the term of the agreement, which includes supplying finished goods inventory to Sobi and because we retained the marketing authorization for TEGSEDI and WAYLIVRA we are responsible for leading the global commercial strategy for each medicine. We view this performance obligation as a series of distinct activities that are substantially the same. Therefore, we recognize as revenue the price Sobi pays us for the inventory when we deliver the finished goods inventory to Sobi. We also recognize distribution fee revenue based on Sobi&#8217;s net sales of TEGSEDI and WAYLIVRA. Under our agreements with Sobi, Sobi does not generally have a right of return.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Prior to our distribution agreements with Sobi, we recognized TEGSEDI and WAYLIVRA commercial revenue in the period when our customer obtained control of our products, which occurred at a point in time upon transfer of title to the customer. We classified payments to customers or other parties in the distribution channel for services that were distinct and priced at fair value as selling, general and administrative, or SG&amp;A, expenses in our condensed consolidated statements of operations. We classified payments to customers or other parties in the distribution channel that did not meet those criteria as a reduction of revenue, as discussed further below. We excluded from revenues taxes collected from customers relating to TEGSEDI and WAYLIVRA commercial revenue and remitted these amounts to governmental authorities.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Reserves for TEGSEDI and WAYLIVRA commercial revenue</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under our distribution agreements with Sobi, Sobi is responsible for any applicable reserves.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Prior to our distribution agreements with Sobi, w</span>e recorded TEGSEDI and WAYLIVRA commercial revenue at our net sales price, or transaction price. We included in our transaction price estimated reserves for discounts, returns, chargebacks, rebates and other allowances that we offered within contracts between us and our customers, wholesalers, distributors, health care providers and other indirect customers. We estimated our reserves using the amounts we have earned or we could claim on the associated sales. We classified our reserves as a reduction of accounts receivable when we were not required to make a payment or as a current liability when we were required to make a payment. In certain cases, our estimates included a range of possible outcomes that were probability weighted for relevant factors such as our historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, our reserves reflected our best estimates under the terms of our respective contracts. When calculating our reserves and related TEGSEDI and WAYLIVRA commercial revenue, we only recognized amounts to the extent that we considered it probable that we would not have to reverse a significant amount of the cumulative sales we previously recognized in a future period. Under our agreements with Sobi, we transferred all reserves to Sobi. See our revenue recognition policy in Note 1, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Organization and Significant Accounting Policies</span>, of our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for additional details regarding how we accounted for the reserves related to TEDSEDI and WAYLIVIRA product sales prior to our agreements with Sobi.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Research and development revenue under collaboration agreements:</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Upfront payments</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">When we enter into a collaboration agreement and receive an upfront payment, we typically record the entire upfront payment as deferred revenue if our only performance obligation is for R&amp;D services we will provide in the future. We amortize the upfront payment into revenue as we perform the R&amp;D services. For example, under our collaboration agreement with Roche to develop IONIS-FB-L<sub>Rx</sub> for the treatment of complement-mediated diseases, we received a $75 million upfront payment in the fourth quarter of 2018. We allocated the upfront payment to our single performance obligation, R&amp;D services. We are amortizing the $75 million upfront payment using an input method over the estimated period of time we are providing R&amp;D services.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Milestone payments</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are required to include additional consideration in the transaction price when it is probable. We typically include milestone payments for R&amp;D services in the transaction price when they are achieved. We include these milestone payments when they are achieved because typically there is considerable uncertainty in the research and development processes that trigger these payments. Similarly, we include approval milestone payments in the transaction price once the medicine is approved by the applicable regulatory agency. We will recognize sales-based milestone payments in the period in which we achieve the milestone under the sales-based royalty exception allowed under accounting rules.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize milestone payments that relate to an ongoing performance obligation over our period of performance. For example, in the fourth quarter of 2020, we achieved a $7.5 million milestone payment from Biogen when we advanced a target under our 2018 strategic collaboration. We added this payment to the transaction price and allocated it to our R&amp;D services performance obligation. We are recognizing revenue related to this milestone payment over our estimated period of performance.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversely, we recognize in full those milestone payments that we earn based on our partners&#8217; activities when our partner achieves the milestone event and we do not have a performance obligation. For example, in the third quarter of 2021, we recognized a $25 million milestone payment from Novartis when Novartis achieved 50 percent enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen. We recognized the milestone payment in full in the third quarter of 2021 because we did not have any remaining performance obligations related to the milestone payment.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">License fees</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We generally recognize as revenue the total amount we determine to be the relative stand-alone selling price of a license when we deliver the license to our partner. This is because our partner has full use of the license and we do not have any additional performance obligations related to the license after delivery. For example, in the fourth quarter of 2020, we earned a $30 million license fee from AstraZeneca when AstraZeneca licensed ION455, an investigational medicine in development to treat nonalcoholic steatohepatitis, or NASH.</div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;"><span style="text-decoration: underline;">Sublicense fees</span></div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize sublicense fee revenue in the period in which a party, who has already licensed our technology, further licenses the technology to another party because we do not have any performance obligations related to the sublicense.</div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Amendments to Agreements</div>

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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">From time to time we amend our collaboration agreements. When this occurs, we are required to assess the following items to determine the accounting for the amendment:</div>

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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z9c306ffd794f472ca5b606c438bf5a4b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If the additional goods and/or services are distinct from the other performance obligations in the original agreement; and</div></td>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z2e299ba86071471289d0de0c0f75ad1b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If the goods and/or services are sold at a stand-alone selling price.</div></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">If we conclude the goods and/or services in the amendment are distinct from the performance obligations in the original agreement and at a stand-alone selling price, we account for the amendment as a separate agreement. If we conclude the goods and/or services are not distinct and are sold at a stand-alone selling price, we then assess whether the remaining goods or services are distinct from those already provided. If the goods and/or services are distinct from what we have already provided, then we allocate the remaining transaction price from the original agreement and the additional transaction price from the amendment to the remaining goods and/or services. If the goods and/or services are not distinct from what we have already provided, we update the transaction price for our single performance obligation and recognize any change in our estimated revenue as a cumulative adjustment.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, in May 2015, we entered into an exclusive license agreement with Bayer to develop and commercialize IONIS-FXI<sub>Rx</sub> for the prevention of thrombosis. As part of the agreement, Bayer paid us a<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> $</span>100<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million upfront payment. At the onset of the agreement, we were responsible for completing a Phase 2 study of IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> in people with end-stage renal disease on hemodialysis and for providing an initial supply of API. In February 2017, we amended our agreement with Bayer to advance IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and to initiate development of fesomersen (IONIS-FXI-L</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">), which Bayer licensed. As part of the 2017 amendment, Bayer paid us $</span>75<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million. We are also eligible to receive milestone payments and tiered royalties on gross margins of IONIS-FXI</span><sub>Rx</sub><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and fesomersen. Under the 2017 amendment, we concluded we had a new agreement with </span>three<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> performance obligations. These performance obligations were to deliver the license of fesomersen, to provide R&amp;D services and to deliver API. We allocated the $</span>75<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million transaction price to these performance obligations. Refer to Note 6, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Collaborative Arrangements and Licensing Agreements</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span>in our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2020&#160;<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">for further discussion of the Bayer collaboration.</span></div>

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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic; font-weight: bold;">Multiple agreements</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">From time to time, we may enter into separate agreements at or near the same time with the same partner. We evaluate such agreements to determine whether we should account for them individually as distinct arrangements or whether the separate agreements should be combined and accounted for together. We evaluate the following to determine the accounting for the agreements:</div>

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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7d49b45a2eb04336b4419366ac3857bd" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the agreements were negotiated together with a single objective;</div></td>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc42f620f66da4691b1d07dc612437121" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the amount of consideration in one contract depends on the price or performance of the other agreement; or</div></td>
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<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7420d29e9e9741799400cb97bac13094" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
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    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Whether the goods and/or services promised under the agreements are a single performance obligation.</div></td>
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<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our evaluation involves significant judgment to determine whether a group of agreements might be so closely related that accounting guidance requires us to account for them as a combined arrangement.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For example, in the second quarter of 2018, we entered into two separate agreements with Biogen at the same time: a new strategic neurology collaboration agreement and a stock purchase agreement, or SPA. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We evaluated the Biogen agreements to determine whether we should treat the agreements separately or combine them. We considered that the agreements were negotiated concurrently and in contemplation of one another. Based on these facts and circumstances, we concluded that we should evaluate the provisions of the agreements on a combined basis. </span></div>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ReceivablesPolicyTextBlock', window );">Contracts Receivable</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Contracts Receivable</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Our contracts receivable balance represents the amounts we have billed our partners or customers and that are due to us unconditionally for goods we have delivered or services we have performed. When we bill our partners or customers with payment terms based on the passage of time, we consider the contracts receivable to be unconditional. We typically receive payment within </span><span style="-sec-ix-hidden:Fact_cb46feec840d4d05b86df2a2af3b44c3">one quarter</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> of billing our partner or customer</span>.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As of September 30, 2021, approximately 58.3 percent of our contracts receivables were from three significant customers. As of December 31, 2020, approximately 99.5 percent of our contracts receivables were from two significant customers.</div>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TradeAndOtherAccountsReceivableUnbilledReceivablesPolicy', window );">Unbilled SPINRAZA Royalties</a></td>
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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Unbilled SPINRAZA Royalties</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our unbilled SPINRAZA royalties represent our right to receive consideration from Biogen in advance of when we are eligible to bill Biogen for SPINRAZA royalties. We include these unbilled amounts in other current assets on our condensed consolidated balance sheet.</div>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueRecognitionPolicyTextBlock', window );">Deferred Revenue</a></td>
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<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: -18pt; margin-left: 54pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Deferred Revenue</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We are often entitled to bill our customers and receive payment from our customers in advance of our obligation to provide services or transfer goods to our partners. In these instances, we include the amounts in deferred revenue on our condensed consolidated balance sheet.</span> During the three months ended&#160;September 30, 2021 and 2020, we recognized $21.1 million and $22.5 million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">During the </span>nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#160;</span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, we recognized $</span>71.9<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million and $</span>84.1<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million of revenue from amounts that were in our beginning deferred revenue balance for each respective period. </span>For further discussion, refer to our revenue recognition policy above.</div>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfSalesPolicyTextBlock', window );">Cost of Sales</a></td>
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<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Cost of Sales</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our cost of sales includes manufacturing costs, transportation and freight costs and indirect overhead costs associated with the manufacturing and distribution of our products. We also may include certain period costs related to manufacturing services and inventory adjustments in cost of sales. </div>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentPolicyTextBlock', window );">Cash, Cash Equivalents and Investments</a></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Cash, Cash Equivalents and Investments</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We consider all liquid investments with maturities of three months or less when we purchase them to be cash equivalents. Our short-term investments have initial maturities of greater than three months from date of purchase. We classify our short-term debt investments as &#8220;available-for-sale&#8221; and carry them at fair market value based upon prices on the last day of the fiscal period for identical or similar items. We record unrealized gains and losses on debt securities as a separate component of comprehensive income (loss) and include net realized gains and losses in gain (loss) on investments in our condensed consolidated statement of operations. We use the specific identification method to determine the cost of securities sold.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We also have equity investments of less than 20 percent ownership in publicly and privately held biotechnology companies that we received as part of a technology license or partner agreement. At September 30, 2021, we held equity investments in three publicly held companies, Antisense Therapeutics Limited, or ATL, Bicycle Therapeutics plc, or Bicycle, and ProQR Therapeutics N.V., or ProQR. We also held equity investments in seven privately held companies, Aro Biotherapeutics, Atlantic Pharmaceuticals Limited, Dynacure SAS, Empirico, Inc., Flamingo Therapeutics BV, YourBio Health, Inc. (formerly Seventh Sense Biosystems) and Suzhou-Ribo Life Science Co, Ltd.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We are required to measure and record our equity investments at fair value and to recognize the changes in fair value in our condensed consolidated statement of operations. We account for our equity investments in privately held companies at their cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. For example, during the second and fourth quarters of 2020, we revalued our investments in three privately held companies, Dynacure, Suzhou-Ribo and Aro Biotherapeutics because the companies sold additional equity securities that were similar to the equity we own. These observable price changes resulted in us recognizing a $6.3 million gain on our investment in Dynacure, a $3.0 million gain on our investment in Suzhou-Ribo and a $5.5 million gain on our investment in Aro Biotherapeutics in our condensed consolidated statement of operations during 2020 because the sales were at higher prices compared to our recorded value.</div>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryPolicyTextBlock', window );">Inventory Valuation</a></td>
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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Inventory Valuation</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We reflect our inventory on our condensed consolidated balance sheet at the lower of cost or net realizable value under the first-in, first-out method, or FIFO. We capitalize the costs of raw materials that we purchase for use in producing our medicines because until we use these raw materials, they have alternative future uses, which we refer to as clinical raw materials. We include in inventory raw material costs for medicines that we manufacture for our partners under contractual terms and that we use primarily in our clinical development activities and drug products. We can use each of our raw materials in multiple products and, as a result, each raw material has future economic value independent of the development status of any single medicine. For example, if one of our medicines failed, we could use the raw materials for that medicine to manufacture our other medicines. We expense these costs as R&amp;D expenses when we begin to manufacture API for a particular medicine if the medicine has not been approved for marketing by a regulatory agency. Our raw materials- commercial inventory includes API for our commercial medicines. We capitalize material, labor and overhead costs as part of our raw materials- commercial inventory.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We obtained the first regulatory approval for TEGSEDI in July 2018 and for WAYLIVRA in May 2019. At September 30, 2021, our physical inventory for TEGSEDI and WAYLIVRA included API that we produced prior to when we obtained regulatory approval. As such, this API has no cost basis as we had previously expensed the costs as R&amp;D expenses.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We review our inventory periodically and reduce the carrying value of items we consider to be slow moving or obsolete to their estimated net realizable value based on forecasted demand compared to quantities on hand. We consider several factors in estimating the net realizable value, including shelf life of our inventory, alternative uses for our medicines in development and historical write-offs. For the nine months ended&#160;September 30, 2021 and 2020, we recorded an immaterial amount of inventory write-offs.</div>

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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our inventory consisted of the following (in thousands):</div>

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<table cellpadding="0" cellspacing="0" id="z2797308125a14c86aa5621d5f05e5205" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Raw materials:</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 19.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Raw materials- clinical</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11,993</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9,206</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
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    <td style="vertical-align: bottom; width: 76%; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; text-indent: -18pt; margin-left: 28.4pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Raw materials- commercial</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7,502</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total raw materials</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">16,140</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">16,708</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Work in process</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,183</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,252</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Finished goods</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">607</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3,005</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; padding-bottom: 4px;" valign="bottom"><div style="text-align: justify; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total inventory</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">22,930</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,965</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeLeasesPolicyTextBlock', window );">Leases</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Leases</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We determine if an arrangement contains a lease at inception. We currently only have operating leases. We recognize a right-of-use operating lease asset and associated short- and long-term operating lease liability on our condensed consolidated balance sheet for operating leases greater than one year. Our right-of-use assets represent our right to use an underlying asset for the lease term and our lease liabilities represent our obligation to make lease payments arising from the lease arrangement. We recognize our right-of-use operating lease assets and lease liabilities based on the present value of the future minimum lease payments we will pay over the lease term. We determine the lease term at the inception of each lease, and in certain cases our lease term could include renewal options if we concluded we were reasonably certain that we will exercise the renewal option. When we exercise a lease option that was not previously included in the initial lease term, we reassess our right-of-use asset and lease liabilities for the new lease term.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As our current leases do not provide an interest rate implicit in the lease, we used our incremental borrowing rate, based on the information available on the date we adopted Topic 842 (January 2019), as of the lease inception date or at the lease option extension date in determining the present value of future payments. We recognize rent expense for our minimum lease payments on a straight-line basis over the expected term of our lease. We recognize period expenses, such as common area maintenance expenses, in the period we incur the expense.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In September 2021, we entered into an operating lease agreement for office space located in Boston, Massachusetts. We determined that the lease commencement date is the date in which the space is ready for our occupancy, which we expect will be in the fourth quarter of 2021. </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We are leasing this space under a non-cancelable operating lease with an initial term ending </span>91<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> months following the lease commencement date and an option to extend the lease for an additional </span>five-year<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> term. Under the lease agreement, we will receive a </span>seven-month<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> free rent period, which will commence on the lease commencement date. Our lease payments over the initial term total $</span>6.8<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million. We will recognize a right-of-use lease asset and lease liability in the fourth quarter of 2021 upon the lease commencement date. Since we did not have the right to occupy the premises as of September 30, 2021, there was no accounting impact in the third quarter.</span></div>
<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpensePolicy', window );">Research and Development Expenses</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our research and development expenses include wages, benefits, facilities, supplies, external services, clinical trial and manufacturing costs and other expenses that are directly related to our research and development operations. We expense research and development costs as we incur them. When we make payments for research and development services prior to the services being rendered, we record those amounts as prepaid assets on our condensed consolidated balance sheet and we expense them as the services are provided.</div>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IntangibleAssetsFiniteLivedPolicy', window );">Patent Expenses</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We capitalize costs consisting principally of outside legal costs and filing fees related to obtaining patents. We amortize patent costs over the useful life of the patent, beginning with the date the U.S. Patent and Trademark Office, or foreign equivalent, issues the patent. </span>We review our capitalized patent costs regularly to ensure that they include costs for patents and patent applications that have future value. When we identify patents and patent applications that we are not actively pursuing, we write off any associated costs<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span></div>
<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxPolicyTextBlock', window );">Income Taxes</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Income Taxes</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We account for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In addition, deferred tax assets are recorded for the future benefit of utilizing net operating losses and research and development credit carryforwards. We record a valuation allowance when necessary to reduce our net deferred tax assets to the amount we expect to realize.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We evaluate our deferred tax assets regularly to determine whether adjustments to the valuation allowance are appropriate due to changes in facts or circumstances, such as changes in expected future pre-tax earnings, tax law, interactions with taxing authorities and developments in case law. In making this evaluation, we rely on our recent history of pre-tax earnings. Our material assumptions are our forecasts of future pre-tax earnings and the nature and timing of future deductions and income represented by the deferred tax assets and liabilities, all of which involve the exercise of significant judgment.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We assessed our valuation allowance requirements and recorded a valuation allowance against all of Ionis&#8217; U.S. federal net deferred tax assets in the fourth quarter of 2020, due to uncertainties related to our ability to realize the tax benefits associated with these assets. We based our determination largely on Akcea rejoining the Ionis U.S. consolidated federal tax group in the fourth quarter of 2020. Due to Akcea&#8217;s historical and projected financial statement losses, and the negative impact we expect this to have on Ionis&#8217; consolidated taxable income, there is uncertainty of generating sufficient consolidated pre-tax income in future periods to realize the Ionis deferred tax benefits. We also expect that Ionis&#8217; pre-tax income in future periods may be lower due to increased research and development expenses associated with our pipeline of wholly owned medicines. We continue to maintain a valuation allowance against all our consolidated U.S. federal and state net deferred tax assets.</div>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock', window );">Long-Lived Assets</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Long-lived Assets</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We evaluate long-lived assets, which include property, plant and equipment and patent costs, for impairment on at least a quarterly basis and whenever events or changes in circumstances indicate that we may not be able to recover the carrying amount of such assets.</div>
<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UseOfEstimates', window );">Use of Estimates</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Use of Estimates</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">We prepare our condensed consolidated financial statements in conformity with accounting principles generally accepted in the </span>U.S. that require us to make estimates and assumptions that affect the amounts reported in our condensed consolidated financial statements and accompanying notes. Actual results could differ from our estimates.</div>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerSharePolicyTextBlock', window );">Basic and Diluted Net Loss per Share</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic and Diluted Net Loss Per Share</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Basic net loss per share</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the three and nine months ended&#160;September 30, 2021 by dividing our net loss by our weighted-average number of common shares outstanding during the period. For the first nine months of 2021, we did not have to consider Akcea results separately in our calculation because we owned 100 percent of Akcea for the entire period. Our basic net loss per share for the three and nine months ended September 30, 2021 was $0.58 and $1.80, respectively.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In the third quarter of 2020, prior to the Akcea Merger, we calculated our basic net loss per share for the three and nine months ended&#160;September 30, 2020 by calculating our net loss for Ionis on a stand-alone basis plus our share of Akcea&#8217;s net loss for the period to determine our total net loss attributable to our common stockholders. To calculate the portion of Akcea&#8217;s net loss attributable to our ownership, we multiplied Akcea&#8217;s net loss per share by the weighted average shares we owned in Akcea during the period. As a result of this calculation, our total net loss available to Ionis common stockholders for the calculation of net loss per share is different than our net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders in the condensed consolidated statements of operations.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the three months ended September 30, 2020 as follows (in thousands, except per share amounts):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z6e0bd4e1d49640db8eda4dfa200753da" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three months ended September 30, 2020</div></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Weighted</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Average Shares</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Owned in Akcea</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Akcea&#8217;s</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Per Share</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss Per</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Share Calculation</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; portion of Akcea&#8217;s net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">77,095</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.49</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(37,822</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss available to Ionis common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(24,571</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Weighted average shares outstanding</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.18</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#160;</span>September 30, 2020 as follows (in thousands, except per share amounts):</div>

<div><br/></div>

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  <tr>
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Weighted</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Average Shares</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Owned in Akcea</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Akcea&#8217;s</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Per Share</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss Per</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Share Calculation</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; portion of Akcea&#8217;s net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">77,095</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1.40</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(108,176</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Akcea&#8217;s net loss attributable to our ownership</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(108,176</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; stand-alone net income</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">18,235</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss available to Ionis common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(89,941</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Weighted average shares outstanding</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">139,497</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.64</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z729f964a8a84426883f8b1deee9b51f1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Diluted net loss per share</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the three and nine months ended&#160;September 30, 2021 and 2020, we incurred a net loss; therefore, we did not include dilutive common equivalent shares in the computation of diluted net loss per share because the effect would have been anti-dilutive. Common stock from the following would have had an anti-dilutive effect on net loss per share:</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z43d84bc7ea3844d0ab074f4aa14288ed" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.125 percent convertible senior notes, or 0.125% Notes;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zc1d1cebf8f2943f58e6a0bab1688a49b" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Note hedges related to the 0.125% Notes;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z59e22ca8a35544a79ebbedf7c6346417" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1 percent convertible senior notes, or 1% Notes;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z539f9c2b28eb4676a4b27d0fbf14f0cb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dilutive stock options;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z7a3ed3c754f540b493056e2df93ae913" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unvested restricted stock units, or RSUs;</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z275182c1f5ad46399f780e650f2fef54" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Unvested performance restricted stock units, or PRSUs; and</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z60f2bd6315a04ca196589bd19dee4ef2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Employee Stock Purchase Plan, or ESPP.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the three and nine months ended&#160;September 30, 2021, common stock from the following would also have had an anti-dilutive effect on net loss per share:</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z250741ef32e94c51a4bb935fd455314d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0 percent convertible senior notes, or 0% Notes; and</div></td>
  </tr>
</table>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z9eb4d5480810437bad6ba3b4e0c58082" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 36pt;"/>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#9679;</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Note hedges related to the 0% Notes.</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additionally as of September 30, 2021, we had warrants related to our 0% and 0.125% Notes outstanding. We will include the shares issuable under these warrants in our calculation of diluted earnings per share when the average market price per share of our common stock for the reporting period exceeds the strike price of the warrants.</div>
<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtPolicyTextBlock', window );">Convertible Debt</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Convertible Debt</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Adoption of ASU 2020-06</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">In August 2020, the FASB issued ASU 2020-06, which simplifies</span> the accounting for convertible debt instruments<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, amends the guidance on derivative scope exceptions for contracts in an entity&#8217;s own equity, and modifies the guidance on diluted earnings per share calculations. We adopted ASU 2020-06 on January 1, 2021 under the full retrospective approach, which required us to revise our prior period financial statements. This guidance impacted our accounting for outstanding convertible debt. At January 1, 2021, we had </span>two<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> outstanding convertible notes, our </span>0.125%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes, which mature in December 2024, and our </span>1%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes, which mature in November 2021. In April 2021, we completed a $</span>632.5<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> million offering of </span>0%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes primarily to repurchase a majority of our </span>1%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes. We accounted for our </span>0%<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> Notes under ASU 2020-06 at issuance. Refer to Note 6, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Convertible Debt</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, for further information.</span></div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The updated guidance eliminates the cash conversion accounting model we previously followed in Accounting Standard Codification, or ASC, 470-20, which required us to separate each of our convertible debt instruments at issuance into two units of accounting, a liability component, based on our nonconvertible debt borrowing rate at issuance, and an equity component. Under ASU 2020-06, we now account for each of our convertible debt instruments as a single unit of accounting, a liability, because we concluded that the conversion features do not require bifurcation as a derivative under ASC 815-15 and our convertible debt instruments were not issued at a substantial premium. Since we adopted ASU 2020-06 using the full retrospective approach, we were required to apply the guidance to all convertible debt instruments we had outstanding as of January 1, 2019. We recomputed the basis of each convertible debt instrument as if we accounted for each as a single unit of accounting at issuance. This update included recalculating the amortization of debt issuance costs using an updated effective interest rate. As a result of adopting ASU 2020-06, we recorded a cumulative adjustment to decrease our additional paid in capital and our accumulated deficit at January 1, 2019. We have updated these financial statements to reflect the cumulative adjustment for the periods presented. We have labeled our prior period financial statements &#8220;as revised&#8221; to indicate the change required under the new accounting guidance. Below is a summary of the change in our balance sheet at December 31, 2020 and statement of operations from the three and nine months ended&#160;September 30, 2020 under the ASC 470-20 legacy guidance compared to the new ASU 2020-06 guidance we adopted:</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the adjustments we made to the condensed consolidated balance sheet we originally reported at December 31, 2020 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z61ca4ada3097492594c0401d2ef05dfb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1 percent convertible senior notes</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">293,161</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,648</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">308,809</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.125 percent convertible senior notes</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">455,719</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">84,417</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">540,136</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,113,646</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,127</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,895,519</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,249,368</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">118,062</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,131,306</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under ASU 2020-06, our revised ending balances for our 1% Notes and 0.125% Notes as of December 31, 2020 represent the principal balance of each convertible debt instrument less debt issuance costs. Additionally, because we have deferred tax assets related to our convertible debt instruments, we also adjusted these amounts as part of our adoption of ASU 2020-06. However, because we have a full valuation allowance on our deferred tax assets, there was no impact to our condensed consolidated balance sheet related to our deferred tax assets.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following tables summarize the adjustments we made to the condensed consolidated statement of operations we originally reported for the three and nine months ended&#160;September 30, 2020 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="zcc869176fe1c47c983c609f000d19db2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended September 30, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(11,321</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8,893</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,428</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss before income tax expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(40,443</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8,893</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(31,550</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income tax expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,648</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,416</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(5,064</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(43,091</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,477</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(36,614</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(30,944</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,477</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(24,467</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic and diluted net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.22</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.04</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.18</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z2f5855359501402b9fbfba586eb0b9b9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended September 30, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(33,484</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26,408</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(7,076</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss before income tax benefit (expense)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(146,387</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26,408</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(119,979</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income tax benefit (expense)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,047</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(5,124</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(4,077</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(145,340</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,284</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(124,056</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(111,015</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,284</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(89,731</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic and diluted net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.80</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.16</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.64</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Under ASU 2020-06, our revised interest expense is lower because we are no longer recording non-cash interest expense related to a debt discount. This decrease was partially offset by the increase in interest expense related to the amortization of debt issuance costs because we no longer allocate a portion of our debt issuance costs to stockholders&#8217; equity at issuance. Instead, the entire debt issuance costs were recorded as a contra-liability on our condensed consolidated balance sheet at issuance and we are amortizing them over the contractual term using an updated effective interest rate. Our updated effective interest rates for our 1% Notes and 0.125% Notes were 1.4 percent and 0.5 percent, respectively.</div>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following tables summarize the adjustments we made to our condensed consolidated statements of stockholders&#8217; equity we originally reported at December 31, 2020 and 2019 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z5aeb3ee1a3364575838aa3c32258a09d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,113,646</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,127</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,895,519</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,249,368</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">118,062</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,131,306</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total stockholders&#8217; equity</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">843,347</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(100,065</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">743,282</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="zcfa210d3757e446eba979459832059ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2019</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,128</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,985,650</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(707,534</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">111,039</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(596,495</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total stockholders&#8217; equity</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,684,547</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(107,089</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,577,458</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DerivativesPolicyTextBlock', window );">Call Spread</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Call Spread</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In conjunction with the issuance of our 0% Notes and 0.125% Notes in April 2021 and December 2019, respectively, we entered into call spread transactions, which were comprised of purchasing note hedges and selling warrants. We account for the note hedges and warrants as separate freestanding financial instruments and treat each instrument as a separate unit of accounting. We determined that the note hedges and warrants do not meet the definition of a liability using the guidance contained in ASC Topic 480, therefore we account for the note hedges and warrants using the Derivatives and Hedging &#8211; Contracts in Entity&#8217;s Own Equity accounting guidance contained in ASC Topic 815. We determined that the note hedges and warrants meet the definition of a derivative, are indexed to our stock and meet the criteria to be classified in shareholders&#8217; equity. We recorded the aggregate amount paid for the note hedges and the aggregate amount received for the warrants as additional paid-in capital in our condensed consolidated balance sheet. We reassess our ability to continue to classify the note hedges and warrants in shareholders&#8217; equity at each reporting period.</div>
<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SegmentReportingPolicyPolicyTextBlock', window );">Segment Information</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Segment Information</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In 2021, we began operating as a single segment, Ionis operations, because our chief decision maker reviews operating results on an aggregate basis and manages our operations as a single operating segment. Previously, we had operated as two operating segments, Ionis Core and Akcea Therapeutics. We completed the Akcea Merger in October 2020 and fully integrated Akcea&#8217;s operations into ours as of January 1, 2021.</div>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy', window );">Stock-Based Compensation Expense</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Stock-based Compensation Expense</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We measure stock-based compensation expense for equity-classified awards, principally related to stock options, RSUs, PRSUs and stock purchase rights under our ESPP based on the estimated fair value of the award on the date of grant. We recognize the value of the portion of the award that we ultimately expect to vest as stock-based compensation expense over the requisite service period in our condensed consolidated statements of operations. We reduce stock-based compensation expense for estimated forfeitures at the time of grant and revise in subsequent periods if actual forfeitures differ from those estimates. We use the Black-Scholes model to estimate the fair value of stock options granted and stock purchase rights under our ESPP.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">On the grant date, we use our stock price and assumptions regarding a number of variables to determine the estimated fair value of stock-based payment awards. These variables include, but are not limited to, our expected stock price volatility over the term of the awards, and actual and projected employee stock option exercise behaviors.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We recognize compensation expense for stock options granted, RSUs, PRSUs and stock purchase rights under the ESPP using the accelerated multiple-option approach. Under the accelerated multiple-option approach (also known as the graded-vesting method), we recognize compensation expense over the requisite service period for each separately vesting tranche of the award as though the award were in substance multiple awards, which results in the expense being front-loaded over the vesting period.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we amended and restated the Akcea 2015 equity plan, including renaming the plan as the Ionis Pharmaceuticals, Inc. 2020 Equity Incentive Plan, or 2020 Plan. As a result, all employees are now under an Ionis stock plan and subject to the same Black-Scholes assumptions.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">For the nine months ended&#160;September 30, 2021 and 2020, we used the following weighted-average assumptions in our Black-Scholes calculations:</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Employee Stock Options:</div>

<table cellpadding="0" cellspacing="0" id="z765fe70c9b264d2b97702ae8f890e897" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Risk-free interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dividend yield</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Volatility</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">54.3</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">58.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expected life</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.9 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.7 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Ionis Board of Director Stock Options:</div>

<table cellpadding="0" cellspacing="0" id="z2ab3e6b5b99349ab8dafa3e9b4ad99ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
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  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
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    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
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</table>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">ESPP:</div>

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  <tr>
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    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Risk-free interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dividend yield</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Volatility</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">42.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">47.9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expected life</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6 months</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6 months</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">RSU&#8217;s:</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The fair value of RSUs is based on the market price of our common stock on the date of grant. The RSUs we have granted to employees vest annually over a four-year period. The RSUs we granted to our board of directors prior to June 2020 vest annually over a four-year period. RSUs granted after June 2020 to our board of directors fully vest after one year. The weighted-average grant date fair value of RSUs granted to employees and our board of directors for the nine months ended&#160;September 30, 2021 was $59.15 and $39.42 per share, respectively.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">PRSU&#8217;s:</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning in 2020, we added PRSU awards to the compensation for our Chief Executive Officer, Dr. Brett Monia. Under the terms of the grants, <span style="-sec-ix-hidden:Fact_3ea144f70898401099a1731ad0c7e39f"><span style="-sec-ix-hidden:Fact_b531c97d5a394e3f8a5454ecd82ddb93"><span style="-sec-ix-hidden:Fact_b2b6dbe875764e78b9cce0b8464216dd">one third</span></span></span> of the PRSUs may vest at the end of three separate performance periods spread over the three years following the date of grant (i.e., the one-year period commencing on the date of grant and ending on the first anniversary of the date of grant; the two-year period commencing on the date of grant and ending on the second anniversary of the date of grant; and the three-year period commencing on the date of grant and ending on the third anniversary of the date of grant) based on our relative total shareholder return, or TSR, as compared to a peer group of companies, and as measured, in each case, at the end of the applicable performance period. Under the terms of the grants no number of PRSUs is guaranteed to vest and the actual number of PRSUs that will vest at the end of each performance period may be anywhere from zero percentto 150 percent of the target number depending on our relative TSR.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We determined the fair value of Dr. Monia&#8217;s PRSUs using a Monte Carlo model because the performance target is based on our relative TSR, which represents a market condition. We are recognizing the grant date fair value of these awards as stock-based compensation expense using the accelerated multiple-option approach over the vesting period. The weighted-average grant date fair value of PRSUs granted to Dr. Monia for the nine months ended&#160;September 30, 2021 was $77.17 per share.</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes stock-based compensation expense for the three and nine months ended&#160;September 30, 2021 and 2020 (in thousands).</div>

<div><br/></div>

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  <tr>
    <td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"/>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Cost of sales</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">111</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">315</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As of September 30, 2021, total unrecognized estimated non-cash stock-based compensation expense related to non-vested stock options, RSUs and PRSUs was $65.3 million, $72.2 million and $2.5 million, respectively. Our actual expenses may differ from these estimates because we will adjust our unrecognized non-cash stock-based compensation expense for future forfeitures. We expect to recognize the cost of non-cash stock-based compensation expense related to our non-vested stock options, RSUs and PRSUs over a weighted average amortization period of 1.2 years, 1.4 years and 1.2 years, respectively.</div>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Impact of Recently Issued Accounting Standards</div>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As disclosed in the &#8220;Convertible Debt&#8221; policy above within this footnote, we adopted the simplified accounting for convertible debt instrument guidance (ASU 2020-06) on January 1, 2021. Refer to the section above for the impact of adoption. We do not expect any other recently issued accounting standards to have a material impact to our financial results.</div>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e32247-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32847-109319<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32840-109319<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124431353&amp;loc=SL116659661-227067<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32639-109319<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e32280-109318<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 17<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32809-109319<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxPolicyTextBlock</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IntangibleAssetsFiniteLivedPolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for finite-lived intangible assets. This accounting policy also might address: (1) the amortization method used; (2) the useful lives of such assets; and (3) how the entity assesses and measures impairment of such assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 926<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120154696&amp;loc=d3e54445-107959<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 920<br> -SubTopic 350<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120155617&amp;loc=SL120155638-234783<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 920<br> -SubTopic 350<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120155617&amp;loc=SL120155628-234783<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 920<br> -SubTopic 350<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120155617&amp;loc=SL120155628-234783<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IntangibleAssetsFiniteLivedPolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=116847112&amp;loc=d3e4556-108314<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6361739&amp;loc=d3e7789-107766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 912<br> -SubTopic 330<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6471895&amp;loc=d3e55923-109411<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=116847112&amp;loc=d3e4492-108314<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 270<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124437754&amp;loc=d3e543-108305<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -URI http://asc.fasb.org/topic&amp;trid=2126998<br><br>Reference 7: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for investment in financial asset.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(3)(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeLeasesPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for leasing arrangement entered into by lessee.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918666-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeLeasesPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ReceivablesPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for receivable. Includes, but is not limited to, accounts receivable and financing receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123577603&amp;loc=d3e5033-111524<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=84159169&amp;loc=d3e10178-111534<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=84159169&amp;loc=d3e10149-111534<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=84159169&amp;loc=d3e10133-111534<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ReceivablesPolicyTextBlock</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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</tr>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ResearchAndDevelopmentExpensePolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for costs it has incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 730<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6420194&amp;loc=d3e21568-108373<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ResearchAndDevelopmentExpensePolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for revenue from contract with customer.</p></div>
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<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for revenue. Includes revenue from contract with customer and from other sources.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123372394&amp;loc=d3e18823-107790<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for segment reporting.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 29<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8864-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 29<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8864-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 29<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8864-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 29<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8864-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 29<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8864-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 29<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8864-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b),(f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for treatment of receivables that are billable but have not been billed as of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -URI http://asc.fasb.org/topic&amp;trid=2196771<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504814942840">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our inventory consisted of the following (in thousands):</div>

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    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
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    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Raw materials:</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total raw materials</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Finished goods</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; padding-bottom: 4px;" valign="bottom"><div style="text-align: justify; margin-left: 28.45pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total inventory</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
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  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTextBlock', window );">Basic Net Loss per Share</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the three months ended September 30, 2020 as follows (in thousands, except per share amounts):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z6e0bd4e1d49640db8eda4dfa200753da" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three months ended September 30, 2020</div></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Weighted</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Average Shares</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Owned in Akcea</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Akcea&#8217;s</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Per Share</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss Per</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Share Calculation</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; portion of Akcea&#8217;s net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">77,095</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.49</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(37,822</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Akcea&#8217;s net loss attributable to our ownership</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(37,822</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; stand-alone net income</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13,251</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss available to Ionis common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(24,571</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Weighted average shares outstanding</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">139,708</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.18</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We calculated our basic net loss per share for the nine months ended<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#160;</span>September 30, 2020 as follows (in thousands, except per share amounts):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z829b7fd73abe4d0c8c02eb55723b4acb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine months ended September 30, 2020</div></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Weighted</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Average Shares</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Owned in Akcea</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Akcea&#8217;s</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Per Share</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Basic</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Net Loss Per</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Share Calculation</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(as revised*)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; portion of Akcea&#8217;s net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">77,095</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1.40</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(108,176</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Akcea&#8217;s net loss attributable to our ownership</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(108,176</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ionis&#8217; stand-alone net income</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">18,235</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss available to Ionis common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(89,941</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Weighted average shares outstanding</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">139,497</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: -9.1pt; margin-left: 9.1pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.64</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z729f964a8a84426883f8b1deee9b51f1" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">*</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We revised our 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted retrospectively. Refer to Note 2, <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Significant Accounting Policies</span>, for further information.</div></td>
  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock', window );">Adoption of ASU 2020-06</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the adjustments we made to the condensed consolidated balance sheet we originally reported at December 31, 2020 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z61ca4ada3097492594c0401d2ef05dfb" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1 percent convertible senior notes</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">293,161</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,648</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">308,809</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.125 percent convertible senior notes</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">455,719</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">84,417</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">540,136</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,113,646</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,127</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,895,519</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,249,368</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">118,062</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,131,306</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following tables summarize the adjustments we made to the condensed consolidated statement of operations we originally reported for the three and nine months ended&#160;September 30, 2020 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="zcc869176fe1c47c983c609f000d19db2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended September 30, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(11,321</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8,893</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,428</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss before income tax expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(40,443</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8,893</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(31,550</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income tax expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,648</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,416</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(5,064</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(43,091</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,477</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(36,614</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(30,944</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,477</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(24,467</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic and diluted net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.22</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.04</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.18</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z2f5855359501402b9fbfba586eb0b9b9" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended September 30, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Interest expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(33,484</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26,408</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(7,076</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Loss before income tax benefit (expense)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(146,387</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">26,408</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(119,979</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Income tax benefit (expense)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,047</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(5,124</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(4,077</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(145,340</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,284</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(124,056</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(111,015</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,284</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(89,731</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Basic and diluted net loss per share</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.80</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.16</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.64</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
</table>

<div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 12pt;"><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following tables summarize the adjustments we made to our condensed consolidated statements of stockholders&#8217; equity we originally reported at December 31, 2020 and 2019 to adopt ASU 2020-06 (in thousands):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z5aeb3ee1a3364575838aa3c32258a09d" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,113,646</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,127</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,895,519</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,249,368</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">118,062</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,131,306</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total stockholders&#8217; equity</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">843,347</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(100,065</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">743,282</div></td>
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  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="zcfa210d3757e446eba979459832059ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="10" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2019</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Previously</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Reported</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">ASU 2020-06</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Adjustment</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">As Revised</div></td>
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  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Additional paid-in-capital</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,203,778</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(218,128</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,985,650</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Accumulated deficit</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(707,534</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">111,039</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(596,495</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total stockholders&#8217; equity</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,684,547</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(107,089</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,577,458</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock', window );">Weighted-Average Assumptions for Stock Options</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Employee Stock Options:</div>

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  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Risk-free interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dividend yield</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Volatility</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">54.3</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">58.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.9 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4.7 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">Ionis Board of Director Stock Options:</div>

<table cellpadding="0" cellspacing="0" id="z2ab3e6b5b99349ab8dafa3e9b4ad99ca" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Risk-free interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dividend yield</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Volatility</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">55.9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">57.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expected life</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.3 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6.7 years</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock', window );">Weighted-Average Assumptions for ESPP</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-style: italic;">ESPP:</div>

<table cellpadding="0" cellspacing="0" id="z4775cbab309e4daebc6523679daa2ac5" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Risk-free interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Dividend yield</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Volatility</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">42.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">47.9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">%</div></td>
  </tr>
  <tr>
    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expected life</div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6 months</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6 months</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock', window );">Stock-Based Compensation Expense</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes stock-based compensation expense for the three and nine months ended&#160;September 30, 2021 and 2020 (in thousands).</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z80699f3bd74640d8abd3ddb51f6852b2" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"/>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30,</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td rowspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Cost of sales</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">111</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">315</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">293</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">902</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">23,332</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">25,359</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">71,979</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">76,931</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expense</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7,094</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">20,171</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504816611032">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Investments (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the contract maturity of the available-for-sale securities we held as of September 30, 2021:</div>

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  <tr>
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  <tr>
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<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock', window );">Summary of Investments</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following is a summary of our investments (in thousands):</div>

<div style="text-align: left;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </span><br/></div>

<table cellpadding="0" cellspacing="0" id="z3aa42bc635cb44af8030deda27154230" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(50</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">448,461</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">83,630</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">96</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">83,719</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">89,267</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">89,275</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">141,161</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">103</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(30</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">141,234</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5,028</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5,026</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(91</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">366,907</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,181</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(475</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">367,613</div></td>
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  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">73,028</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(120</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">72,909</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">98,499</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">245</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(88</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">98,656</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">41,167</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(65</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">41,110</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,169</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(26</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,143</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of more than one year</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">585,770</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,435</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(774</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">586,431</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,352,029</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,982</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(865</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,354,146</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Equity securities:</span></div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in other current assets (3)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11,897</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,935</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(663</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13,169</div></td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in deposits and other assets (4)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,615</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">16,707</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">32,322</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">27,512</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">18,642</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(663</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">45,491</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale and equity securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,379,541</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">21,624</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1,528</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,399,637</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z33e9b010a5e2449c941f1c3d8b9c3093" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="6" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Gross Unrealized</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;"><span style="text-indent: 0pt;">December 31, 2020</span></div></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Gains</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Losses</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Fair Value</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Available-for-sale securities:</span></div></td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">514,182</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,194</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(41</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">516,335</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">94,234</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">354</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">94,586</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5,184</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total securities with a maturity of one year or less</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,025,454</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(71</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,028,360</div></td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">325,079</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4,941</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(40</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">329,980</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">80,099</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">185</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">80,275</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">50,318</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">383</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">50,697</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">31,779</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">91</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">31,854</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,041</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,513,770</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(140</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,522,207</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="text-decoration: underline;">Equity securities:</span></div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in other current assets (3)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">4,712</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,681</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,031</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities included in deposits and other assets (4)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,062</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,938</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">31,000</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total equity securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">19,774</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">15,938</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,681</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">33,031</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; text-indent: 27pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total available-for-sale and equity securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,533,544</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">24,515</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2,821</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1,555,238</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z3af82d0b45504dc9983904fc4cb00fa4" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1)</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">We hold our available-for-sale securities at amortized cost.</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="zd9e1b1908ec84f56ae4070a0957574fa" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(2)</td>
    <td style="width: auto; vertical-align: top; text-align: left;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Includes investments classified as cash equivalents on our condensed consolidated balance sheet.</div></td>
  </tr>
</table>

<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z8cb4ac74b1864ccbac9a78ae57086c95" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(3)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Our equity securities included in other current assets consisted of our investments in two publicly traded companies, ProQR and Bicycle, which we classify as Level 1 and Level 3 investments, respectively. We recognize publicly traded equity securities at fair value. In the nine months ended September 30, 2021, we recognized a $1.9 million unrealized gain and a $0.7 million unrealized loss on our condensed consolidated statement of operations related to our investments in Bicycle and ProQR, respectively. In the nine months ended September 30, 2020, our equity securities included in other current assets only consisted of ProQR.</div></td>
  </tr>
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<div><br/></div>

<table cellpadding="0" cellspacing="0" class="DSPFListTable" id="z94898b868e5c48bba965b5b41b92fc37" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">
  <tr>
    <td style="width: 18pt; vertical-align: top; align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(4)</td>
    <td style="width: auto; vertical-align: top; text-align: justify;"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Our equity securities included in deposits and other assets consisted of our investments in privately held companies. We recognize our private company equity securities at</span> cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">.</span></div></td>
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<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfTemporaryImpairmentLossesInvestmentsTableTextBlock', window );">Temporarily Impaired Investments</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The following is a summary of our investments we consider to be temporarily impaired at </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> (in thousands, except for number of investments). </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">All of these investments have less than 12 months of temporary impairment.</span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> We believe that the decline in value of these securities is temporary and is primarily related to the change in market interest rates since purchase. We believe it is more likely than not that we will be able to hold our debt securities to maturity. Therefore, we anticipate full recovery of our debt securities&#8217; amortized cost basis at maturity.</span></div>

<div><br/></div>

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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td style="vertical-align: bottom; width: 64%; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(90</div></td>
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  <tr>
    <td style="vertical-align: bottom; width: 64%; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">432</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(95</div></td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">3</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11,168</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(28</div></td>
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  <tr>
    <td style="vertical-align: bottom; width: 64%; padding-bottom: 4px; white-space: nowrap;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total temporarily impaired securities</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of investments in an unrealized loss position for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), including: (a) the aggregate related fair value of investments with unrealized losses, (b) the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823148088">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Fair Value Measurements (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock', window );">Assets Measured at Fair Value on a Recurring Basis</a></td>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The following tables present the major security types we held at </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> and </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> that we regularly measure and carry at fair value. As of </span>September 30, 2021<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">our Bicycle investment was subject to trading restrictions that extend to the third quarter of 2022; as a result, we included a lack of marketability discount in valuing this investment, which is a Level 3 input. </span><span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">As of </span>December 31, 2020<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">, </span>we did not have any investments that we valued using Level 3 inputs<span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">. The following tables segregate each security type by the level within the fair value hierarchy of the valuation techniques we utilized to determine the respective securities&#8217; fair value (in thousands):</span></div>

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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td style="vertical-align: bottom; width: 52%; background-color: #CCEEFF;" valign="bottom"><div><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Investment in Bicycle Therapeutics plc (3)</div></div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 52%; padding-bottom: 2px;" valign="bottom"><div><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Investment in ProQR Therapeutics N.V. (3)</div></div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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  <tr>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9,120</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

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  <tr>
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    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">At</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">December 31, 2020</div></td>
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    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Quoted Prices in</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Active Markets</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Level 1)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Significant Other</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Observable Inputs</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">(Level 2)</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Cash equivalents (1)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">221,125</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">221,125</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Corporate debt securities (4)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">846,315</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">846,315</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by U.S. government agencies (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">174,861</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">174,861</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by the U.S. Treasury (5)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">358,497</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">358,497</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Debt securities issued by states of the U.S. and political subdivisions of the states (2)</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">136,309</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">136,309</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%;" valign="bottom"><div><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Other municipal debt securities (2)</div></div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,225</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6,225</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: bottom; width: 64%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Investment in ProQR Therapeutics N.V. (3)</div></div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2,031</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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<div><br/></div>

<div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following footnotes reference lines on our condensed consolidated balance sheet:</div>

<div><br/></div>

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<div><br/></div>

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<div><br/></div>

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<div><br/></div>

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<div><br/></div>

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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Collaborative Arrangements and Licensing Agreements (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">During the three and nine months ended September 30, 2021 and 2020, we earned the following revenue from our relationship with Biogen (in millions, except percentage amounts):</div>

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    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">2020</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">66.6</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">51.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">63.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504814979208">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Convertible Debt (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember', window );">0 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_ConvertibleNotesDisclosureLineItems', window );"><strong>Convertible Notes [Abstract]</strong></a></td>
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<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following <span style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">0%</span> Notes outstanding (amounts in millions except interest rate and price per share data):</div>

<div><br/></div>

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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.2</div></td>
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  <tr>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; white-space: nowrap;" valign="bottom">&#160;</td>
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  <tr>
    <td style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Effective interest rate</div></td>
    <td colspan="1" style="vertical-align: bottom; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5 percent</div></td>
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  </tr>
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    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Conversion price per share</div></td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">57.84</div></td>
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    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">76.39</div></td>
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    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total shares of common stock subject to conversion</div></td>
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    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">10.9</div></td>
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<span></span>
</td>
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<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember', window );">0.125 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_ConvertibleNotesDisclosureLineItems', window );"><strong>Convertible Notes [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtTableTextBlock', window );">Convertible Notes</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following 0.125% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):</div>

<div><br/></div>

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<td class="text">&#160;<span></span>
</td>
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<td class="text">&#160;<span></span>
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<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">At September 30, 2021, we had the following 1% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):</div>

<div><br/></div>

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    <td colspan="2" style="vertical-align: top; background-color: #CCEEFF;" valign="bottom"><div style="text-align: right; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.4 percent</div></td>
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    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: justify; text-indent: -9pt; margin-left: 9pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total shares of common stock subject to conversion</div></td>
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    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823784328">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Severance and Retention Costs (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
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<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">As a result of the Akcea Merger in October 2020, we began recognizing severance and retention expenses in the fourth quarter of 2020. The following table summarizes our total estimated severance and retention expenses related to the Akcea Merger (in millions):</div>

<div><br/></div>

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  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total estimated expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">27.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expenses incurred from inception to September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">27.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Remaining estimated expenses to be recognized through October 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: left; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes our severance and retention expenses related to the Akcea Merger that we recognized during the three and nine months ended September 30, 2021 (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="ze5de025aab5946f4bbc66473886c29cf" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.3</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">6.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.9</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention reserve amounts related to the Akcea Merger that we included in accrued compensation for the period indicated (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z7852ad7d2f1442659c724b929efdae2c" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning balance as of January 1, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; text-indent: 16.7pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">13.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 16.7pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Reserve adjustments during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(1.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net amount expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">11.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts paid during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(20.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">5.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostAndReserveAxis=ions_RestructuredEuropeanOperationsMember', window );">Restructured European Operations [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_SeveranceAndRetentionCostsLineItems', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock', window );">Severance and Retention Costs</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">In December 2020, we entered into a distribution agreement with Sobi for TEGSEDI and WAYLIVRA in Europe. As a result, we restructured our European Operations, or Restructured European Operations. In the fourth quarter of 2020, we began recognizing severance and retention expenses related to our Restructured European Operations. The following table summarizes our total severance and retention expenses related to our Restructured European Operations (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z9be2de7500a0491aab6b3e3f46abbfc3" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Severance and</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Retention Expenses</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total estimated expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Expenses incurred from inception to September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">14.0</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Remaining estimated expenses to be recognized through October 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention expenses related to our Restructured European Operations that we recognized during the three and nine months ended September 30, 2021 (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z62ae84ac4a404efaa62ebcc15aff9bae" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 76%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.6</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div><br/></div>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance and retention reserve amounts related to our Restructured European Operations that we included in accrued compensation for the period indicated (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z398b1996f59c4d46b612fc0f55986a86" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning balance as of January 1, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">12.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; text-indent: 18.2pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.5</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; text-indent: 18.2pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Reserve adjustments during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(0.8</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Net amount expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">1.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts paid during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(13.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.7</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostAndReserveAxis=ions_RestructuredNorthAmericanTegsediOperationsMember', window );">Restructured North American TEGSEDI Operations [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_SeveranceAndRetentionCostsLineItems', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock', window );">Severance and Retention Costs</a></td>
<td class="text">
<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance expenses related to our Restructured North American TEGSEDI Operations that we recognized during the second quarter of 2021 (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="zef341a1ee1b841938437d2f593f97b1e" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: bottom; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Three Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">June 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Research, development and patent expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">2.3</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Selling, general and administrative expenses</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">7.1</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Total</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>

<div style="display:none;"><br/></div>
<div style="text-align: justify; text-indent: 36pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">The following table summarizes the severance reserve amounts related to our Restructured North American TEGSEDI Operations that we included in accrued compensation for the period indicated (in millions):</div>

<div><br/></div>

<table cellpadding="0" cellspacing="0" id="z0f09e5d288f64f2eab0b8cf3ba594c84" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; text-align: left; color: #000000; width: 100%;">
  <tr>
    <td style="vertical-align: top; padding-bottom: 2px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;"/></td>
    <td colspan="1" style="vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
    <td colspan="2" style="vertical-align: top; border-bottom: #000000 solid 2px;" valign="bottom"><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">Nine Months Ended</div><div style="text-align: center; font-family: 'Times New Roman', Times, serif; font-size: 10pt; font-weight: bold;">September 30, 2021</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; padding-bottom: 2px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Beginning balance as of January 1, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">&#8212;</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; background-color: #CCEEFF; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts expensed during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">9.4</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Amounts paid during the period</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom">&#160;</td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 solid 2px; background-color: #CCEEFF;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">(9.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 2px; background-color: #CCEEFF; white-space: nowrap;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">)</div></td>
  </tr>
  <tr>
    <td style="vertical-align: top; width: 88%; padding-bottom: 4px;" valign="bottom"><div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Ending balance as of September 30, 2021</div></td>
    <td colspan="1" style="vertical-align: bottom; width: 1%; padding-bottom: 4px;" valign="bottom">&#160;</td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">$</div></td>
    <td colspan="1" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: #000000 double 4px;" valign="bottom"><div style="font-family: 'Times New Roman', Times, serif; font-size: 10pt;">0.2</div></td>
    <td colspan="1" style="text-align: left; vertical-align: bottom; width: 1%; padding-bottom: 4px; white-space: nowrap;" valign="bottom">&#160;</td>
  </tr>
</table>
<span></span>
</td>
</tr>
</table>
<div style="display: none;">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<td style="white-space:nowrap;">ions_SeveranceAndRetentionCostsLineItems</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
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<td><strong> Data Type:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 5.P.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140864-122747<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 5.P.4)<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504825225432">
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<th class="th" colspan="3">1 Months Ended</th>
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<div>Feb. 28, 2017 </div>
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<div>May 31, 2015 </div>
<div>USD ($)</div>
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<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
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<div>Dec. 31, 2020 </div>
<div>USD ($)</div>
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<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
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<div>Dec. 31, 2018 </div>
<div>USD ($)</div>
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<div>Jun. 30, 2018 </div>
<div>Agreement</div>
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<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
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<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">2<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue Recognition [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">15,519<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 19,040<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 46,901<span></span>
</td>
<td class="nump">$ 50,562<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInAugust2018WithPtcTherapeuticsMember', window );">PTC [Member] | TEGSEDI and WAYLIVRA [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue Recognition [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">4,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember', window );">Novartis [Member] | Pelacarsen [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue Recognition [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">$ 25,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 25,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_PercentageEnrollmentInPhase3Study', window );">Percentage enrollment in Lp(a) HORIZON Phase 3 cardiovascular outcome study</a></td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInOctober2018WithRocheMember', window );">IONIS-FB-L for Complement-Mediated Diseases [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue Recognition [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_UpfrontPaymentReceived', window );">Upfront payment received</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 75,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember', window );">Biogen 2018 Strategic Neurology [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue Recognition [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RevenueFromContractWithCustomerTransactionPriceAdditions', window );">Milestone payment received and added to transaction price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 7,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJuly2015WithAstrazenecaMember', window );">AstraZeneca [Member] | ION455 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue Recognition [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 30,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember', window );">Bayer [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue Recognition [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_UpfrontPaymentReceived', window );">Upfront payment received</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 100,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementAmendedInFebruary2017WithBayerMember', window );">Bayer [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue Recognition [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_UpfrontPaymentReceived', window );">Upfront payment received</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 75,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations', window );">Number of separate performance obligations | PerformanceObligation</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RevenueFromContractWithCustomerTransactionPrice', window );">Transaction price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 75,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NumberOfAgreementsWithCollaborationPartner">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of agreements entered into with the collaboration partner.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfAgreementsWithCollaborationPartner</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_PercentageEnrollmentInPhase3Study">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_PercentageEnrollmentInPhase3Study</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of performance obligations at the inception of a contract.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_RevenueFromContractWithCustomerNumberOfPerformanceObligationsAtInceptionOfContract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of separate performance obligations under the collaboration agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_RevenueFromContractWithCustomerNumberOfSeparatePerformanceObligations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_RevenueFromContractWithCustomerTransactionPrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of consideration the Company earned or is eligible to earn under the collaboration agreement, including any variable consideration.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_RevenueFromContractWithCustomerTransactionPrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_RevenueFromContractWithCustomerTransactionPriceAdditions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The additional amount of consideration the Company earned under the collaboration agreement that is added to the transaction price.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_RevenueFromContractWithCustomerTransactionPriceAdditions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_UpfrontPaymentReceived">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of upfront payments received during the period under the collaboration agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_UpfrontPaymentReceived</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_MajorCustomersAxis=ions_BiogenIncMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_MajorCustomersAxis=ions_BiogenIncMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=us-gaap_ProductMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=us-gaap_ProductMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInAugust2018WithPtcTherapeuticsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInAugust2018WithPtcTherapeuticsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ions_PelacarsenMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ions_PelacarsenMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInOctober2018WithRocheMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInOctober2018WithRocheMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInApril2018WithBiogenMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJuly2015WithAstrazenecaMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJuly2015WithAstrazenecaMember</td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ions_Ion455Member</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInMay2015WithBayerMember</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementAmendedInFebruary2017WithBayerMember</td>
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<td><strong> Data Type:</strong></td>
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</DOCUMENT>
<DOCUMENT>
<TYPE>XML
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<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823803320">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies, Contracts Receivable (Details) - Partner<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractReceivablesAbstract', window );"><strong>Contracts Receivable [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_PeriodAfterBillingWhenPaymentIsReceived', window );">Period of time after billing when payment is received</a></td>
<td class="text">3 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_SignificantPartnersAbstract', window );"><strong>Significant Partners [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NumberOfSignificantCustomers', window );">Number of significant customers</a></td>
<td class="nump">3<span></span>
</td>
<td class="nump">2<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember', window );">Contracts Receivables [Member] | Credit Concentration [Member] | Three Significant Customers [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_SignificantPartnersAbstract', window );"><strong>Significant Partners [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskPercentage1', window );">Concentration percentage</a></td>
<td class="nump">58.30%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember', window );">Contracts Receivables [Member] | Credit Concentration [Member] | Two Significant Customers [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_SignificantPartnersAbstract', window );"><strong>Significant Partners [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskPercentage1', window );">Concentration percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">99.50%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NumberOfSignificantCustomers">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of significant customers with which the Company does business.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfSignificantCustomers</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_PeriodAfterBillingWhenPaymentIsReceived">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The time period between billing a collaboration partner for goods delivered or services performed that are due unconditionally and payment is received from the collaboration partner, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_PeriodAfterBillingWhenPaymentIsReceived</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_SignificantPartnersAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskPercentage1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 18<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6351-108592<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=123594938&amp;loc=d3e13531-108611<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 21<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123594938&amp;loc=d3e13537-108611<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6404-108592<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskPercentage1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractReceivablesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractReceivablesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CreditConcentrationRiskMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CreditConcentrationRiskMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_MajorCustomersAxis=ions_ThreeSignificantCustomersMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_MajorCustomersAxis=ions_ThreeSignificantCustomersMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_MajorCustomersAxis=ions_TwoSignificantCustomersMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_MajorCustomersAxis=ions_TwoSignificantCustomersMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>41
<FILENAME>R27.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504816444728">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies, Deferred Revenue (Details) - USD ($)<br> $ in Millions</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityAbstract', window );"><strong>Deferred Revenue [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized', window );">Revenue recognized from amounts in beginning deferred revenue balance</a></td>
<td class="nump">$ 21.1<span></span>
</td>
<td class="nump">$ 22.5<span></span>
</td>
<td class="nump">$ 71.9<span></span>
</td>
<td class="nump">$ 84.1<span></span>
</td>
</tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityAbstract</td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityRevenueRecognized</td>
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<tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504902232952">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies, Cash, Cash Equivalents and Investments (Details)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="3">9 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Company</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Company</div>
</th>
<th class="th">
<div>Dec. 31, 2020 </div>
<div>USD ($) </div>
<div>Investment</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsAndShortTermInvestmentsAbstract', window );"><strong>Cash, Cash Equivalents and Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment', window );">Number of publicly held companies in which there is an equity ownership interest of less than 20% | Company</a></td>
<td class="nump">3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment', window );">Number of privately held companies in which there is an equity ownership interest of less than 20% | Company</a></td>
<td class="nump">7<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">7<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NumberOfInvestmentsInPrivatelyHeldCompaniesThatWereRevalued', window );">Number of investments in privately held companies that were revalued | Investment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnInvestments', window );">Gain on investment</a></td>
<td class="nump">$ 4,013<span></span>
</td>
<td class="nump">$ 835<span></span>
</td>
<td class="nump">$ 4,885<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 10,722<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=ions_DynacureSasMember', window );">Dynacure [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsAndShortTermInvestmentsAbstract', window );"><strong>Cash, Cash Equivalents and Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnInvestments', window );">Gain on investment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 6,300<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=ions_SuzhouRiboLifeScienceCoLtdMember', window );">Suzhou-Ribo [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsAndShortTermInvestmentsAbstract', window );"><strong>Cash, Cash Equivalents and Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnInvestments', window );">Gain on investment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=ions_AroBiotherapeuticsMember', window );">Aro Biotherapeutics [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsAndShortTermInvestmentsAbstract', window );"><strong>Cash, Cash Equivalents and Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnInvestments', window );">Gain on investment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 5,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NumberOfInvestmentsInPrivatelyHeldCompaniesThatWereRevalued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of investments in privately-held companies that were revalued since the companies sold additional equity securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfInvestmentsInPrivatelyHeldCompaniesThatWereRevalued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
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<tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of privately-held companies, in which the entity has an equity ownership interest of less than 20%, with which it conducts business. These are accounted for under the cost method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of publicly-held companies, in which the entity has an equity ownership interest of less than 20%, with which it conducts business. These are accounted for at fair value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment</td>
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<tr>
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<tr>
<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsAndShortTermInvestmentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsAndShortTermInvestmentsAbstract</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainLossOnInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of realized and unrealized gain (loss) on investment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27405-111563<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7(c),9(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnInvestments</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=ions_DynacureSasMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialInstrumentAxis=ions_SuzhouRiboLifeScienceCoLtdMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=ions_SuzhouRiboLifeScienceCoLtdMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialInstrumentAxis=ions_AroBiotherapeuticsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=ions_AroBiotherapeuticsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>43
<FILENAME>R29.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504819066104">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Significant Accounting Policies, Inventory Valuation (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNetAbstract', window );"><strong>Inventory Valuation [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryRawMaterials', window );">Raw materials</a></td>
<td class="nump">$ 16,140<span></span>
</td>
<td class="nump">$ 16,708<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryWorkInProcess', window );">Work in process</a></td>
<td class="nump">6,183<span></span>
</td>
<td class="nump">2,252<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryFinishedGoods', window );">Finished goods</a></td>
<td class="nump">607<span></span>
</td>
<td class="nump">3,005<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNet', window );">Total inventory</a></td>
<td class="nump">22,930<span></span>
</td>
<td class="nump">21,965<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PublicUtilitiesInventoryAxis=ions_ClinicalRawMaterialsMember', window );">Clinical [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNetAbstract', window );"><strong>Inventory Valuation [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryRawMaterials', window );">Raw materials</a></td>
<td class="nump">11,993<span></span>
</td>
<td class="nump">9,206<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PublicUtilitiesInventoryAxis=ions_CommercialRawMaterialsMember', window );">Commercial [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNetAbstract', window );"><strong>Inventory Valuation [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryRawMaterials', window );">Raw materials</a></td>
<td class="nump">$ 4,147<span></span>
</td>
<td class="nump">$ 7,502<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryFinishedGoods">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryFinishedGoods</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryNetAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryNetAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryRawMaterials">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryRawMaterials</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryWorkInProcess">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryWorkInProcess</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PublicUtilitiesInventoryAxis=ions_ClinicalRawMaterialsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PublicUtilitiesInventoryAxis=ions_ClinicalRawMaterialsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PublicUtilitiesInventoryAxis=ions_CommercialRawMaterialsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PublicUtilitiesInventoryAxis=ions_CommercialRawMaterialsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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</body>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>44
<FILENAME>R30.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504817082344">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies, Leases (Details) - Office Space in Boston, Massachusetts [Member]<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeDisclosureAbstract', window );"><strong>Operating Leases [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseTermOfContract', window );">Initial term of operating lease</a></td>
<td class="text">91 months<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseRenewalTerm', window );">Term of operating lease extension</a></td>
<td class="text">5 years<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_LesseeOperatingLeaseFreeRentPeriod', window );">Free rent period</a></td>
<td class="text">7 months<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue', window );">Lease payments over initial term of lease</a></td>
<td class="nump">$ 6.8<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_LesseeOperatingLeaseFreeRentPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period of time lessee will receive free rent under operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_LesseeOperatingLeaseFreeRentPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeDisclosureAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payment for operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseRenewalTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918673-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseRenewalTerm</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseTermOfContract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918673-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseTermOfContract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
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<td><strong> Balance Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504901758024">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies, Basic and Diluted Net Loss per Share (Details) - USD ($)<br> $ / shares in Units, shares in Thousands, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAbstract', window );"><strong>Basic Net Loss per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic net loss per share (in dollars per share)</a></td>
<td class="num">$ (0.58)<span></span>
</td>
<td class="num">$ (0.18)<span></span>
</td>
<td class="num">$ (1.80)<span></span>
</td>
<td class="num">$ (0.64)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="num">$ (82,466)<span></span>
</td>
<td class="num">$ (24,467)<span></span>
</td>
<td class="num">$ (253,210)<span></span>
</td>
<td class="num">$ (89,731)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic', window );">Net loss available to Ionis common shareholders</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (24,571)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (89,941)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Weighted average shares outstanding (in shares)</a></td>
<td class="nump">141,139<span></span>
</td>
<td class="nump">139,708<span></span>
</td>
<td class="nump">140,958<span></span>
</td>
<td class="nump">139,497<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember', window );">0.125 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAbstract', window );"><strong>Basic Net Loss per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember', window );">1 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAbstract', window );"><strong>Basic Net Loss per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember', window );">0 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAbstract', window );"><strong>Basic Net Loss per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ions_IonisCoreMember', window );">Ionis [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAbstract', window );"><strong>Basic Net Loss per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 13,251<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 18,235<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_OwnershipAxis=ions_AkceaTherapeuticsIncMember', window );">Akcea [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAbstract', window );"><strong>Basic Net Loss per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterestOwnershipPercentageByParent', window );">Percentage ownership</a></td>
<td class="nump">100.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (37,822)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (108,176)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_OwnershipAxis=ions_AkceaTherapeuticsIncMember', window );">Akcea [Member] | Common Stock [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAbstract', window );"><strong>Basic Net Loss per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_WeightedAverageNumberOfSharesOwnedInSubsidiary', window );">Weighted average shares owned in Akcea (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">77,095<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">77,095<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic net loss per share (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (0.49)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (1.40)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (37,822)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (108,176)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_WeightedAverageNumberOfSharesOwnedInSubsidiary">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares owned in the subsidiary during the reporting period determined by relating the portion of time within a reporting period that shares have been owned to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_WeightedAverageNumberOfSharesOwnedInSubsidiary</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.</p></div>
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http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasicAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasicAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MinorityInterestOwnershipPercentageByParent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The parent entity's interest in net assets of the subsidiary, expressed as a percentage.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MinorityInterestOwnershipPercentageByParent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1448-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504809876872">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies, Convertible Debt (Details)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
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<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Note </div>
<div>$ / shares</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($) </div>
<div>$ / shares</div>
</th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Note </div>
<div>$ / shares</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($) </div>
<div>$ / shares</div>
</th>
<th class="th">
<div>Jun. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Apr. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Jun. 30, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2019 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentNumberOfConvertibleNotes', window );">Number of outstanding convertible notes | Note</a></td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Condensed Consolidated Balance Sheet [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtCurrent', window );">1 percent convertible senior notes, net</a></td>
<td class="nump">$ 61,936<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 61,936<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 308,809<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapitalCommonStock', window );">Additional paid-in capital</a></td>
<td class="nump">1,942,348<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,942,348<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,895,519<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(1,384,516)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(1,384,516)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(1,131,306)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="num">(2,340)<span></span>
</td>
<td class="num">$ (2,428)<span></span>
</td>
<td class="num">(7,111)<span></span>
</td>
<td class="num">$ (7,076)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Loss before income tax benefit (expense)</a></td>
<td class="num">(83,773)<span></span>
</td>
<td class="num">(31,550)<span></span>
</td>
<td class="num">(254,064)<span></span>
</td>
<td class="num">(119,979)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax benefit (expense)</a></td>
<td class="nump">1,307<span></span>
</td>
<td class="num">(5,064)<span></span>
</td>
<td class="nump">854<span></span>
</td>
<td class="num">(4,077)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="num">(82,466)<span></span>
</td>
<td class="num">(36,614)<span></span>
</td>
<td class="num">(253,210)<span></span>
</td>
<td class="num">(124,056)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</a></td>
<td class="num">$ (82,466)<span></span>
</td>
<td class="num">$ (24,467)<span></span>
</td>
<td class="num">$ (253,210)<span></span>
</td>
<td class="num">$ (89,731)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic net loss per share (in dollars per share) | $ / shares</a></td>
<td class="num">$ (0.58)<span></span>
</td>
<td class="num">$ (0.18)<span></span>
</td>
<td class="num">$ (1.80)<span></span>
</td>
<td class="num">$ (0.64)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted net loss per share (in dollars per share) | $ / shares</a></td>
<td class="num">$ (0.58)<span></span>
</td>
<td class="num">$ (0.18)<span></span>
</td>
<td class="num">$ (1.80)<span></span>
</td>
<td class="num">$ (0.64)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="nump">$ 530,536<span></span>
</td>
<td class="nump">$ 1,520,579<span></span>
</td>
<td class="nump">$ 530,536<span></span>
</td>
<td class="nump">$ 1,520,579<span></span>
</td>
<td class="nump">$ 582,674<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">743,282<span></span>
</td>
<td class="nump">$ 1,502,513<span></span>
</td>
<td class="nump">$ 1,577,458<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember', window );">Additional Paid In Capital [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="nump">1,942,348<span></span>
</td>
<td class="nump">2,093,551<span></span>
</td>
<td class="nump">1,942,348<span></span>
</td>
<td class="nump">2,093,551<span></span>
</td>
<td class="nump">1,910,379<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,895,519<span></span>
</td>
<td class="nump">2,053,502<span></span>
</td>
<td class="nump">1,985,650<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember', window );">Accumulated Deficit [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</a></td>
<td class="num">(82,466)<span></span>
</td>
<td class="num">(24,467)<span></span>
</td>
<td class="num">(253,210)<span></span>
</td>
<td class="num">(89,731)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="num">(1,384,516)<span></span>
</td>
<td class="num">(776,775)<span></span>
</td>
<td class="num">(1,384,516)<span></span>
</td>
<td class="num">(776,775)<span></span>
</td>
<td class="num">(1,302,050)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(1,131,306)<span></span>
</td>
<td class="num">(752,308)<span></span>
</td>
<td class="num">(596,495)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_ParentMember', window );">Total Ionis Stockholders' Equity [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</a></td>
<td class="num">(82,466)<span></span>
</td>
<td class="num">(24,467)<span></span>
</td>
<td class="num">(253,210)<span></span>
</td>
<td class="num">(89,731)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="nump">$ 530,536<span></span>
</td>
<td class="nump">$ 1,297,344<span></span>
</td>
<td class="nump">$ 530,536<span></span>
</td>
<td class="nump">$ 1,297,344<span></span>
</td>
<td class="nump">$ 582,674<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 743,282<span></span>
</td>
<td class="nump">$ 1,284,893<span></span>
</td>
<td class="nump">1,364,005<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember', window );">0.125 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Condensed Consolidated Balance Sheet [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtNoncurrent', window );">Convertible senior notes</a></td>
<td class="nump">$ 541,768<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 541,768<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 540,136<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember', window );">1 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="nump">1.40%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1.40%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember', window );">0 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face amount of offering</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 632,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Condensed Consolidated Balance Sheet [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtNoncurrent', window );">Convertible senior notes</a></td>
<td class="nump">$ 618,341<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 618,341<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember', window );">As Previously Reported [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Condensed Consolidated Balance Sheet [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtCurrent', window );">1 percent convertible senior notes, net</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">293,161<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapitalCommonStock', window );">Additional paid-in capital</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,113,646<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(1,249,368)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (11,321)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (33,484)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Loss before income tax benefit (expense)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(40,443)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(146,387)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax benefit (expense)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(2,648)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,047<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(43,091)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(145,340)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (30,944)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (111,015)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic net loss per share (in dollars per share) | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (0.22)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (0.80)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted net loss per share (in dollars per share) | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (0.22)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (0.80)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">843,347<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,684,547<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember', window );">As Previously Reported [Member] | Additional Paid In Capital [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,113,646<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,203,778<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember', window );">As Previously Reported [Member] | Accumulated Deficit [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(1,249,368)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(707,534)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember', window );">As Previously Reported [Member] | 0.125 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Condensed Consolidated Balance Sheet [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtNoncurrent', window );">Convertible senior notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">455,719<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember', window );">Adjustment [Member] | ASU 2020-06 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Condensed Consolidated Balance Sheet [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtCurrent', window );">1 percent convertible senior notes, net</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">15,648<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapitalCommonStock', window );">Additional paid-in capital</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(218,127)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">118,062<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredIncomeTaxAssetsNet', window );">Net deferred tax assets</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Condensed Consolidated Statement of Operations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 8,893<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 26,408<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Loss before income tax benefit (expense)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">8,893<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">26,408<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax benefit (expense)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(2,416)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(5,124)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">6,477<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">21,284<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Ionis Pharmaceuticals, Inc. common stockholders</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 6,477<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 21,284<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic net loss per share (in dollars per share) | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0.04<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0.16<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted net loss per share (in dollars per share) | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0.04<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0.16<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(100,065)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(107,089)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember', window );">Adjustment [Member] | ASU 2020-06 [Member] | Additional Paid In Capital [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(218,127)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(218,128)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember', window );">Adjustment [Member] | ASU 2020-06 [Member] | Accumulated Deficit [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfStockholdersEquityAbstract', window );"><strong>Condensed Consolidated Statements of Stockholders' Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">118,062<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 111,039<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember', window );">Adjustment [Member] | ASU 2020-06 [Member] | 0.125 Percent Convertible Senior Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Condensed Consolidated Balance Sheet [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebtNoncurrent', window );">Convertible senior notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 84,417<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_DebtInstrumentNumberOfConvertibleNotes">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of outstanding convertible notes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_DebtInstrumentNumberOfConvertibleNotes</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdditionalPaidInCapitalCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdditionalPaidInCapitalCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConvertibleDebtCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of the carrying value of long-term convertible debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. Convertible debt is a financial instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConvertibleDebtCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConvertibleDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConvertibleDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentFaceAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face (par) amount of debt instrument at time of issuance.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28551-108399<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=114775985&amp;loc=d3e28878-108400<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124429444&amp;loc=SL124452920-239629<br><br>Reference 5: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69C<br> -URI http://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495737-112612<br><br>Reference 6: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69B<br> -URI http://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495735-112612<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentFaceAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466204&amp;loc=SL6036836-161870<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28551-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124429444&amp;loc=SL124452920-239629<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateEffectivePercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredIncomeTaxAssetsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e31931-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e31917-109318<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredIncomeTaxAssetsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (e)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=123482062&amp;loc=SL123482106-238011<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22583-107794<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 4: 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http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=125512782&amp;loc=d3e3842-109258<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22644-107794<br><br>Reference 13: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1252-109256<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=SL5780133-109256<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(27))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI http://asc.fasb.org/extlink&amp;oid=125512782&amp;loc=d3e4984-109258<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22644-107794<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=125512782&amp;loc=d3e3842-109258<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1252-109256<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22595-107794<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22583-107794<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=SL5780133-109256<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123482062&amp;loc=SL123482106-238011<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(27))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 13: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1337-109256<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (e)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=123482062&amp;loc=SL123482106-238011<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 940<br> -SubTopic 20<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123384075&amp;loc=d3e41242-110953<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(10))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 235<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-05(b)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399901&amp;loc=d3e537907-122884<br><br>Reference 9: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8924-108599<br><br>Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(15))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 6.I.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32672-109319<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (h)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22663-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123586238&amp;loc=d3e38679-109324<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(9))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the cost of borrowed funds accounted for as interest expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28555-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (210.5-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtByComponentsCurrentAndNoncurrentAlternativeAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
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Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 34: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 35: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669619-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(1)<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProfitLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cumulative amount of the reporting entity's undistributed earnings or deficit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (g)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementOfFinancialPositionAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementOfStockholdersEquityAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
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<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_ParentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_ParentMember</td>
</tr>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember</td>
</tr>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RestatementAxis=srt_RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate202006Member</td>
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<head>
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<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823505240">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies, Segment Information (Details)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th">
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<div>Segment</div>
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<td class="text">&#160;<span></span>
</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 18<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8672-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract</td>
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<td>xbrli:stringItemType</td>
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<td>na</td>
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<td>duration</td>
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<DOCUMENT>
<TYPE>XML
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<FILENAME>R34.htm
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<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504809835512">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies, Stock-Based Compensation Expense (Details)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Period </div>
<div>$ / shares </div>
<div>shares</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationAbstract', window );"><strong>Stock-based Compensation Expense [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Non-cash stock-based compensation expense</a></td>
<td class="nump">$ 30,537<span></span>
</td>
<td class="nump">$ 45,845<span></span>
</td>
<td class="nump">$ 98,419<span></span>
</td>
<td class="nump">$ 135,077<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember', window );">Cost of Sales [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationAbstract', window );"><strong>Stock-based Compensation Expense [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Non-cash stock-based compensation expense</a></td>
<td class="nump">111<span></span>
</td>
<td class="nump">315<span></span>
</td>
<td class="nump">293<span></span>
</td>
<td class="nump">902<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=ions_ResearchDevelopmentAndPatentExpensesMember', window );">Research, Development and Patent Expense [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationAbstract', window );"><strong>Stock-based Compensation Expense [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Non-cash stock-based compensation expense</a></td>
<td class="nump">23,332<span></span>
</td>
<td class="nump">25,359<span></span>
</td>
<td class="nump">71,979<span></span>
</td>
<td class="nump">76,931<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember', window );">Selling, General and Administrative Expense [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationAbstract', window );"><strong>Stock-based Compensation Expense [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Non-cash stock-based compensation expense</a></td>
<td class="nump">7,094<span></span>
</td>
<td class="nump">$ 20,171<span></span>
</td>
<td class="nump">26,147<span></span>
</td>
<td class="nump">$ 57,244<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember', window );">Stock Options [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract', window );"><strong>Unrecognized Compensation Expense [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions', window );">Unrecognized compensation expense related to non-vested stock options</a></td>
<td class="nump">65,300<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 65,300<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Weighted average period for recognition</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">1 year 2 months 12 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember', window );">Stock Options [Member] | Board of Directors [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract', window );"><strong>Weighted-Average Assumptions [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate', window );">Risk-free interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1.20%<span></span>
</td>
<td class="nump">0.50%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate', window );">Dividend yield</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate', window );">Volatility</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">55.90%<span></span>
</td>
<td class="nump">57.60%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Expected life</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">7 years 3 months 18 days<span></span>
</td>
<td class="text">6 years 8 months 12 days<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember', window );">Stock Options [Member] | Employees [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract', window );"><strong>Weighted-Average Assumptions [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate', window );">Risk-free interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.50%<span></span>
</td>
<td class="nump">1.50%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate', window );">Dividend yield</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate', window );">Volatility</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">54.30%<span></span>
</td>
<td class="nump">58.80%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Expected life</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">4 years 10 months 24 days<span></span>
</td>
<td class="text">4 years 8 months 12 days<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockMember', window );">ESPP [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract', window );"><strong>Weighted-Average Assumptions [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate', window );">Risk-free interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.10%<span></span>
</td>
<td class="nump">0.80%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate', window );">Dividend yield</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate', window );">Volatility</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">42.40%<span></span>
</td>
<td class="nump">47.90%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Expected life</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">6 months<span></span>
</td>
<td class="text">6 months<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember', window );">RSUs [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract', window );"><strong>Unrecognized Compensation Expense [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions', window );">Unrecognized compensation cost related to non-vested units</a></td>
<td class="nump">72,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 72,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Weighted average period for recognition</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">1 year 4 months 24 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember', window );">RSUs [Member] | Board of Directors [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Weighted-average grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 39.42<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember', window );">RSUs [Member] | Board of Directors [Member] | Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Vesting period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">4 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember', window );">RSUs [Member] | Board of Directors [Member] | Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Vesting period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">1 year<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember', window );">RSUs [Member] | Employees [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Vesting period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">4 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Weighted-average grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 59.15<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember', window );">PRSUs [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract', window );"><strong>Unrecognized Compensation Expense [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions', window );">Unrecognized compensation cost related to non-vested units</a></td>
<td class="nump">$ 2,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Weighted average period for recognition</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">1 year 2 months 12 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember', window );">PRSUs [Member] | Chief Executive Officer, Dr. Brett Monia [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods', window );">Number of performance periods | Period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Vesting period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">3 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest', window );">Number of units guaranteed to vest | shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Weighted-average grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 77.17<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember', window );">PRSUs [Member] | Chief Executive Officer, Dr. Brett Monia [Member] | Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest', window );">Percentage of units guaranteed to vest</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">150.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember', window );">PRSUs [Member] | Chief Executive Officer, Dr. Brett Monia [Member] | Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest', window );">Percentage of units guaranteed to vest</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember', window );">PRSUs [Member] | Chief Executive Officer, Dr. Brett Monia [Member] | One-Year Period [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Vesting percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">33.30%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember', window );">PRSUs [Member] | Chief Executive Officer, Dr. Brett Monia [Member] | Two-Year Period [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Vesting percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">33.30%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember', window );">PRSUs [Member] | Chief Executive Officer, Dr. Brett Monia [Member] | Three-Year Period [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract', window );"><strong>RSUs and PRSUs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Vesting percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">33.30%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of separate performance periods under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPerformancePeriods</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of units guaranteed to vest under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfUnitsGuaranteedToVest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of units guaranteed to vest under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfUnitsGuaranteedToVest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllocatedShareBasedCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=122041274&amp;loc=d3e301413-122809<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cost to be recognized for option under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(iv)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Rate of weighted-average expected volatility for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (d)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of vesting of award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.D.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=122041274&amp;loc=d3e301413-122809<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=ions_ResearchDevelopmentAndPatentExpensesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=ions_ResearchDevelopmentAndPatentExpensesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GranteeStatusAxis=ions_ShareBasedPaymentArrangementBoardOfDirectorMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GranteeStatusAxis=ions_ShareBasedPaymentArrangementBoardOfDirectorMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GranteeStatusAxis=us-gaap_ShareBasedPaymentArrangementEmployeeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GranteeStatusAxis=us-gaap_ShareBasedPaymentArrangementEmployeeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_EmployeeStockMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
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<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GranteeStatusAxis=srt_ChiefExecutiveOfficerMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GranteeStatusAxis=srt_ChiefExecutiveOfficerMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>49
<FILENAME>R35.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504901880104">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Significant Accounting Policies, Amendments to Equity Plan (Details) - shares<br></strong></div></th>
<th class="th"><div>Jun. 30, 2021</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ions_EquityIncentivePlan2020Member', window );">2020 Equity Incentive Plan [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedArrangementsToObtainGoodsAndServicesAbstract', window );"><strong>Amendments to Equity Plans [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized', window );">Number of shares authorized for issuance under the Plan (in shares)</a></td>
<td class="nump">1,600,000<span></span>
</td>
<td class="nump">2,600,000<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ions_EquityIncentivePlan2011Member', window );">2011 Equity Incentive Plan [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedArrangementsToObtainGoodsAndServicesAbstract', window );"><strong>Amendments to Equity Plans [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized', window );">Number of shares authorized for issuance under the Plan (in shares)</a></td>
<td class="nump">29,700,000<span></span>
</td>
<td class="nump">23,000,000.0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_IncreaseDecreaseInFungibleShareReserveForEachShareIssuedPursuantToFullValueAward', window );">Reduction in fungible share reserve for each share issued pursuant to full value award (n shares)</a></td>
<td class="num">(1.7)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_IncreaseDecreaseInFungibleShareReserveForEachShareReturningFromFullValueAward', window );">Increase in fungible share reserve for each share returning from a full value award (in shares)</a></td>
<td class="nump">1.7<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_IncreaseDecreaseInFungibleShareReserveForEachShareIssuedPursuantToFullValueAward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Increase (decrease) in the number of shares in the "fungible" share reserve for each share issued pursuant to full value award.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_IncreaseDecreaseInFungibleShareReserveForEachShareIssuedPursuantToFullValueAward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_IncreaseDecreaseInFungibleShareReserveForEachShareReturningFromFullValueAward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Increase (decrease) in the number of shares in the "fungible" share reserve for each share of common stock returning from a full value award.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_IncreaseDecreaseInFungibleShareReserveForEachShareReturningFromFullValueAward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedArrangementsToObtainGoodsAndServicesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedArrangementsToObtainGoodsAndServicesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares authorized for issuance under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PlanNameAxis=ions_EquityIncentivePlan2020Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PlanNameAxis=ions_EquityIncentivePlan2020Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PlanNameAxis=ions_EquityIncentivePlan2011Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PlanNameAxis=ions_EquityIncentivePlan2011Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>50
<FILENAME>R36.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504814973848">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Investments, Contract Maturity of Available-for-Sale Securities (Details)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract', window );"><strong>Contract Maturity of Available-for-Sale Securities [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage', window );">One year or less</a></td>
<td class="nump">58.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage', window );">After one year but within two years</a></td>
<td class="nump">26.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage', window );">After two years but within three and a half years</a></td>
<td class="nump">16.00%<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage', window );">Total</a></td>
<td class="nump">100.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage', window );">Percentage of available-for-sale securities with a maturity of less than two years</a></td>
<td class="nump">84.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_MaximumContractMaturityPeriodRange1', window );">Maximum contract maturity period, range 1</a></td>
<td class="text">1 year<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_MaximumContractMaturityPeriodRange2', window );">Maximum contract maturity period, range 2</a></td>
<td class="text">2 years<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_MaximumContractMaturityPeriodRange3', window );">Maximum contract maturity period, range 3</a></td>
<td class="text">3 years 6 months<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The percentage of available-for-sale debt securities that mature beyond one year but within two years of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The percentage of available-for-sale debt securities that mature beyond two years but within three and one-half years of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughThreeAndOneHalfYearsPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate percentage of all available-for-sale debt securities, regardless of maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_AvailableForSaleSecuritiesDebtMaturitiesTotalPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The percentage of available-for-sale debt securities that mature within one year of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The percentage of available-for-sale debt securities that mature within two years of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_AvailableForSaleSecuritiesDebtMaturitiesWithinTwoYearsPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_MaximumContractMaturityPeriodRange1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum contract maturity period for the first range of available-for-sale securities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_MaximumContractMaturityPeriodRange1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_MaximumContractMaturityPeriodRange2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum contract maturity period for the second range of available-for-sale securities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_MaximumContractMaturityPeriodRange2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_MaximumContractMaturityPeriodRange3">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum contract maturity period for the third range of available-for-sale securities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_MaximumContractMaturityPeriodRange3</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</div>
</body>
</html>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504819375576">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Investments, Summary of Investments (Details)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Company</div>
</th>
<th class="th">
<div>Dec. 31, 2020 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentsAllOtherInvestmentsAbstract', window );"><strong>Ownership Interests in Private and Public Companies [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment', window );">Number of private companies in which there is an equity ownership interest of less than 20% | Company</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">7<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment', window );">Number of public companies in which there is an equity ownership interest of less than 20% | Company</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiCost', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 1,379,541<span></span>
</td>
<td class="nump">$ 1,533,544<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedGain', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">21,624<span></span>
</td>
<td class="nump">24,515<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedLoss', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1,528)<span></span>
</td>
<td class="num">(2,821)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNi', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 1,399,637<span></span>
</td>
<td class="nump">1,555,238<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NumberOfPubliclyTradedCompaniesInWhichEntityHasEquityInvestmentIncludedInOtherCurrentAssets', window );">Number of publicly traded companies in which there is an investment included in other current assets | Company</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ions_BicycleTherapeuticsPlcMember', window );">Bicycle [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiUnrealizedGain', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 1,900<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ions_ProqrTherapeuticsNVMember', window );">ProQR [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiUnrealizedLoss', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(700)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_DebtSecuritiesMember', window );">Available-for-sale Securities [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">1,352,029<span></span>
</td>
<td class="nump">1,513,770<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">2,982<span></span>
</td>
<td class="nump">8,577<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(865)<span></span>
</td>
<td class="num">(140)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,354,146<span></span>
</td>
<td class="nump">1,522,207<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_DebtSecuritiesMember', window );">Available-for-sale Securities [Member] | Securities with Maturity of One Year or Less [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">766,259<span></span>
</td>
<td class="nump">1,025,454<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,547<span></span>
</td>
<td class="nump">2,977<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(91)<span></span>
</td>
<td class="num">(71)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">767,715<span></span>
</td>
<td class="nump">1,028,360<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_DebtSecuritiesMember', window );">Available-for-sale Securities [Member] | Securities with Maturity of More than One Year [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">585,770<span></span>
</td>
<td class="nump">488,316<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,435<span></span>
</td>
<td class="nump">5,600<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(774)<span></span>
</td>
<td class="num">(69)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">586,431<span></span>
</td>
<td class="nump">493,847<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember', window );">Corporate Debt Securities [Member] | Securities with Maturity of One Year or Less [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">447,173<span></span>
</td>
<td class="nump">514,182<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,338<span></span>
</td>
<td class="nump">2,194<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(50)<span></span>
</td>
<td class="num">(41)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">448,461<span></span>
</td>
<td class="nump">516,335<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember', window );">Corporate Debt Securities [Member] | Securities with Maturity of More than One Year [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">366,907<span></span>
</td>
<td class="nump">325,079<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,181<span></span>
</td>
<td class="nump">4,941<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(475)<span></span>
</td>
<td class="num">(40)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">367,613<span></span>
</td>
<td class="nump">329,980<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember', window );">Debt Securities Issued by U.S. Government Agencies [Member] | Securities with Maturity of One Year or Less [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">83,630<span></span>
</td>
<td class="nump">94,234<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">96<span></span>
</td>
<td class="nump">354<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(7)<span></span>
</td>
<td class="num">(2)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">83,719<span></span>
</td>
<td class="nump">94,586<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember', window );">Debt Securities Issued by U.S. Government Agencies [Member] | Securities with Maturity of More than One Year [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">73,028<span></span>
</td>
<td class="nump">80,099<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1<span></span>
</td>
<td class="nump">185<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(120)<span></span>
</td>
<td class="num">(9)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">72,909<span></span>
</td>
<td class="nump">80,275<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember', window );">Debt Securities Issued by the U.S. Treasury [Member] | Securities with Maturity of One Year or Less [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">89,267<span></span>
</td>
<td class="nump">307,576<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">10<span></span>
</td>
<td class="nump">233<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(2)<span></span>
</td>
<td class="num">(9)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">89,275<span></span>
</td>
<td class="nump">307,800<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember', window );">Debt Securities Issued by the U.S. Treasury [Member] | Securities with Maturity of More than One Year [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">98,499<span></span>
</td>
<td class="nump">50,318<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">245<span></span>
</td>
<td class="nump">383<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(88)<span></span>
</td>
<td class="num">(4)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">98,656<span></span>
</td>
<td class="nump">50,697<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember', window );">Debt Securities Issued by States of the U.S. and Political Subdivisions of the States [Member] | Securities with Maturity of One Year or Less [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">141,161<span></span>
</td>
<td class="nump">104,271<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">103<span></span>
</td>
<td class="nump">196<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(30)<span></span>
</td>
<td class="num">(12)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">141,234<span></span>
</td>
<td class="nump">104,455<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember', window );">Debt Securities Issued by States of the U.S. and Political Subdivisions of the States [Member] | Securities with Maturity of More than One Year [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">41,167<span></span>
</td>
<td class="nump">31,779<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">8<span></span>
</td>
<td class="nump">91<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(65)<span></span>
</td>
<td class="num">(16)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">41,110<span></span>
</td>
<td class="nump">31,854<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_OtherDebtSecuritiesMember', window );">Other Municipal Debt Securities [Member] | Securities with Maturity of One Year or Less [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">5,028<span></span>
</td>
<td class="nump">5,191<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(2)<span></span>
</td>
<td class="num">(7)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">5,026<span></span>
</td>
<td class="nump">5,184<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_OtherDebtSecuritiesMember', window );">Other Municipal Debt Securities [Member] | Securities with Maturity of More than One Year [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">6,169<span></span>
</td>
<td class="nump">1,041<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(26)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">6,143<span></span>
</td>
<td class="nump">1,041<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember', window );">Equity Securities [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiCost', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">27,512<span></span>
</td>
<td class="nump">19,774<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiUnrealizedGain', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">18,642<span></span>
</td>
<td class="nump">15,938<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiUnrealizedLoss', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(663)<span></span>
</td>
<td class="num">(2,681)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">45,491<span></span>
</td>
<td class="nump">33,031<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=ions_EquitySecuritiesPubliclyTradedCompaniesMember', window );">Equity Securities in Publicly Traded Company [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiCost', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="nump">11,897<span></span>
</td>
<td class="nump">4,712<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiUnrealizedGain', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,935<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiUnrealizedLoss', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(663)<span></span>
</td>
<td class="num">(2,681)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">13,169<span></span>
</td>
<td class="nump">2,031<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=ions_EquitySecuritiesPrivateCompaniesMember', window );">Equity Securities in Private Companies [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract', window );"><strong>Summary of Investments [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiCost', window );">Cost</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[4]</sup></td>
<td class="nump">15,615<span></span>
</td>
<td class="nump">15,062<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiUnrealizedGain', window );">Gross unrealized gains</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">16,707<span></span>
</td>
<td class="nump">15,938<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNiUnrealizedLoss', window );">Gross unrealized losses</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Estimated fair value</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 32,322<span></span>
</td>
<td class="nump">$ 31,000<span></span>
</td>
</tr>
<tr><td colspan="3"></td></tr>
<tr><td colspan="3"><table class="outerFootnotes" width="100%">
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">We hold our available-for-sale securities at amortized cost.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">Includes investments classified as cash equivalents on our condensed consolidated balance sheet.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[3]</td>
<td style="vertical-align: top;" valign="top">Our equity securities included in other current assets consisted of our investments in two publicly traded companies, ProQR and Bicycle, which we classify as Level 1 and Level 3 investments, respectively. We recognize publicly traded equity securities at fair value. In the nine months ended September 30, 2021, we recognized a $1.9 million unrealized gain and a $0.7 million unrealized loss on our condensed consolidated statement of operations related to our investments in Bicycle and ProQR, respectively. In the nine months ended September 30, 2020, our equity securities included in other current assets only consisted of ProQR.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[4]</td>
<td style="vertical-align: top;" valign="top">Our equity securities included in deposits and other assets consisted of our investments in privately held companies. We recognize our private company equity securities at cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer.</td>
</tr>
</table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNi">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of (1) investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and (2) amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNi</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of (1) amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and (2) cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
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<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedGain">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of (1) unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and (2) unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedGain</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of (1) unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and (2) unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_DebtSecuritiesAvailableForSaleAndEquitySecuritiesFvNiGrossUnrealizedLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of privately-held companies, in which the entity has an equity ownership interest of less than 20%, with which it conducts business. These are accounted for under the cost method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfPrivatelyHeldCompaniesInWhichEntityHasEquityInvestment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of publicly-held companies, in which the entity has an equity ownership interest of less than 20%, with which it conducts business. These are accounted for at fair value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfPubliclyHeldCompaniesInWhichEntityHasEquityInvestment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NumberOfPubliclyTradedCompaniesInWhichEntityHasEquityInvestmentIncludedInOtherCurrentAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of publicly-traded companies in which the entity has an equity investment included in other current assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfPubliclyTradedCompaniesInWhichEntityHasEquityInvestmentIncludedInOtherCurrentAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27161-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27161-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27161-111563<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124258926&amp;loc=SL82898722-210454<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(6))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124258926&amp;loc=SL82898722-210454<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124260329&amp;loc=d3e26610-111562<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (aa)<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27161-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquitySecuritiesFvNi">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=123594786&amp;loc=SL75136599-209740<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquitySecuritiesFvNi</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquitySecuritiesFvNiCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquitySecuritiesFvNiCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquitySecuritiesFvNiUnrealizedGain">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 321<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123583765&amp;loc=SL75117546-209714<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquitySecuritiesFvNiUnrealizedGain</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquitySecuritiesFvNiUnrealizedLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 321<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123583765&amp;loc=SL75117546-209714<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquitySecuritiesFvNiUnrealizedLoss</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentsAllOtherInvestmentsAbstract</td>
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<td>xbrli:stringItemType</td>
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<td>na</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ions_BicycleTherapeuticsPlcMember</td>
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<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=ions_ProqrTherapeuticsNVMember</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
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<td><strong> Name:</strong></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentSecondaryCategorizationAxis=ions_SecuritiesWithMaturityOfOneYearOrLessMember</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentSecondaryCategorizationAxis=ions_SecuritiesWithMaturityOfMoreThanOneYearMember</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialInstrumentAxis=us-gaap_OtherDebtSecuritiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=us-gaap_OtherDebtSecuritiesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialInstrumentAxis=ions_EquitySecuritiesPubliclyTradedCompaniesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=ions_EquitySecuritiesPubliclyTradedCompaniesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=ions_EquitySecuritiesPrivateCompaniesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
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<head>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504824091080">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Investments, Investments Temporarily Impaired (Details)<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Investment</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesAbstract', window );"><strong>Temporarily Impaired Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions', window );">Number of investments | Investment</a></td>
<td class="nump">616<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months', window );">Estimated fair value, less than 12 months of temporary impairment</a></td>
<td class="nump">$ 647,954<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss', window );">Unrealized losses, less than 12 months of temporary impairment</a></td>
<td class="num">$ (865)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember', window );">Corporate Debt Securities [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesAbstract', window );"><strong>Temporarily Impaired Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions', window );">Number of investments | Investment</a></td>
<td class="nump">158<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months', window );">Estimated fair value, less than 12 months of temporary impairment</a></td>
<td class="nump">$ 334,828<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss', window );">Unrealized losses, less than 12 months of temporary impairment</a></td>
<td class="num">$ (525)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember', window );">Debt Securities Issued by U.S. Government Agencies [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesAbstract', window );"><strong>Temporarily Impaired Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions', window );">Number of investments | Investment</a></td>
<td class="nump">13<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months', window );">Estimated fair value, less than 12 months of temporary impairment</a></td>
<td class="nump">$ 103,460<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss', window );">Unrealized losses, less than 12 months of temporary impairment</a></td>
<td class="num">$ (127)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember', window );">Debt Securities Issued by the U.S. Treasury [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesAbstract', window );"><strong>Temporarily Impaired Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions', window );">Number of investments | Investment</a></td>
<td class="nump">10<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months', window );">Estimated fair value, less than 12 months of temporary impairment</a></td>
<td class="nump">$ 75,009<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss', window );">Unrealized losses, less than 12 months of temporary impairment</a></td>
<td class="num">$ (90)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember', window );">Debt Securities Issued by States of the U.S. and Political Subdivisions of the States [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesAbstract', window );"><strong>Temporarily Impaired Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions', window );">Number of investments | Investment</a></td>
<td class="nump">432<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months', window );">Estimated fair value, less than 12 months of temporary impairment</a></td>
<td class="nump">$ 123,489<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss', window );">Unrealized losses, less than 12 months of temporary impairment</a></td>
<td class="num">$ (95)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=us-gaap_OtherDebtSecuritiesMember', window );">Other Municipal Debt Securities [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesAbstract', window );"><strong>Temporarily Impaired Investments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions', window );">Number of investments | Investment</a></td>
<td class="nump">3<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months', window );">Estimated fair value, less than 12 months of temporary impairment</a></td>
<td class="nump">$ 11,168<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss', window );">Unrealized losses, less than 12 months of temporary impairment</a></td>
<td class="num">$ (28)<span></span>
</td>
</tr>
</table>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27337-111563<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=124269663&amp;loc=SL82922890-210455<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=121590138&amp;loc=SL82922954-210456<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=124269663&amp;loc=SL82922890-210455<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27337-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without an allowance for credit loss. Includes beneficial interest in securitized financial asset.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (b)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=124269663&amp;loc=SL82922888-210455<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions</td>
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<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<td>na</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504817958536">
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<th class="tl" colspan="2" rowspan="1"><div style="width: 200px;"><strong>Fair Value Measurements (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2"><div>Sep. 30, 2021</div></th>
<th class="th" colspan="2"><div>Dec. 31, 2020</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember', window );">1% Notes [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1.00%<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">1.00%<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">1.00%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember', window );">0.125% Notes [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.125%<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0.125%<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0.125%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember', window );">0% Notes [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate on convertible senior notes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.00%<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Significant Other Observable Inputs (Level 2) [Member] | 1% Notes [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayableFairValueDisclosure', window );">Fair value of convertible notes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 61,900<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Significant Other Observable Inputs (Level 2) [Member] | 0.125% Notes [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayableFairValueDisclosure', window );">Fair value of convertible notes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">504,300<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Significant Other Observable Inputs (Level 2) [Member] | 0% Notes [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayableFairValueDisclosure', window );">Fair value of convertible notes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">581,400<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">545,339<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">$ 221,125<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,912,654<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">1,745,363<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Bicycle Therapeutics plc [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Investment</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[2]</sup></td>
<td class="nump">9,120<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | ProQR Therapeutics N.V. [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Investment</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[2]</sup></td>
<td class="nump">4,049<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">2,031<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Corporate Debt Securities [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">816,074<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="nump">846,315<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[4]</sup></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Corporate Debt Securities [Member] | Cash and Cash Equivalents [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">10,000<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Debt Securities Issued by U.S. Government Agencies [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="nump">156,628<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">174,861<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Debt Securities Issued by the U.S. Treasury [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">187,931<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="nump">358,497<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[5]</sup></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Debt Securities Issued by the U.S. Treasury [Member] | Cash and Cash Equivalents [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">17,500<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Debt Securities Issued by States of the U.S. and Political Subdivisions of the States [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">182,344<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">136,309<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Other Municipal Debt Securities [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[3]</sup></td>
<td class="nump">11,169<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">6,225<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Quoted Prices in Active Markets (Level 1) [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">545,339<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">221,125<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">737,319<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">581,653<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Quoted Prices in Active Markets (Level 1) [Member] | Bicycle Therapeutics plc [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Investment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Quoted Prices in Active Markets (Level 1) [Member] | ProQR Therapeutics N.V. [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Investment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">4,049<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">2,031<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Quoted Prices in Active Markets (Level 1) [Member] | Corporate Debt Securities [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Quoted Prices in Active Markets (Level 1) [Member] | Debt Securities Issued by U.S. Government Agencies [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Quoted Prices in Active Markets (Level 1) [Member] | Debt Securities Issued by the U.S. Treasury [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">187,931<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">358,497<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Quoted Prices in Active Markets (Level 1) [Member] | Debt Securities Issued by States of the U.S. and Political Subdivisions of the States [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Quoted Prices in Active Markets (Level 1) [Member] | Other Municipal Debt Securities [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,166,215<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">1,163,710<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Bicycle Therapeutics plc [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Investment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | ProQR Therapeutics N.V. [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Investment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Debt Securities [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">816,074<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">846,315<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Debt Securities Issued by U.S. Government Agencies [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">156,628<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">174,861<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Debt Securities Issued by the U.S. Treasury [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Debt Securities Issued by States of the U.S. and Political Subdivisions of the States [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">182,344<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">136,309<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Municipal Debt Securities [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Available-for-sale securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">11,169<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">6,225<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">9,120<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="nump">$ 0<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | Bicycle Therapeutics plc [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Investment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">9,120<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member] | ProQR Therapeutics N.V. [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueNetAssetLiabilityAbstract', window );"><strong>Fair Value Measurements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
<td class="fn" style="border-bottom: 0px;"></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesFvNi', window );">Investment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0<span></span>
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<td class="text">&#160;<span></span>
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<td class="fn" style="border-bottom: 0px;"></td>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="fn" style="border-bottom: 0px;"></td>
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<tr><td colspan="6"><table class="outerFootnotes" width="100%">
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">Included in cash and cash equivalents on our condensed consolidated balance sheet.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">Included in other current assets on our condensed consolidated balance sheet.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[3]</td>
<td style="vertical-align: top;" valign="top">Included in short-term investments.</td>
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<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[4]</td>
<td style="vertical-align: top;" valign="top">$10.0 million was included in cash and cash equivalents, with the difference included in short-term investments.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[5]</td>
<td style="vertical-align: top;" valign="top">$17.5 million included in cash and cash equivalents on our condensed consolidated balance sheet, with the difference included in short-term investments on our condensed consolidated balance sheet.</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123874694&amp;loc=d3e19207-110258<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(6))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124258926&amp;loc=SL82898722-210454<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124260329&amp;loc=d3e26610-111562<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (aa)<br> -URI http://asc.fasb.org/extlink&amp;oid=123581744&amp;loc=d3e27161-111563<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
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<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=123594786&amp;loc=SL75136599-209740<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of notes payable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19,20,22)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
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<th class="th" colspan="3">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
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<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Medicine</div>
</th>
<th class="th">
<div>Jun. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
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<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>Medicine</div>
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<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
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<div>Dec. 31, 2020 </div>
<div>USD ($)</div>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">$ 160,079<span></span>
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<td class="nump">$ 370,450<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="nump">74,171<span></span>
</td>
<td class="nump">198,726<span></span>
</td>
<td class="nump">211,925<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ions_ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember', window );">R&amp;D Revenue [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">$ 48,273<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">64,739<span></span>
</td>
<td class="nump">$ 115,321<span></span>
</td>
<td class="nump">169,948<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember', window );">Biogen [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NumberOfMedicinesBeingDeveloped', window );">Number of medicines currently being developed | Medicine</a></td>
<td class="nump">8<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">8<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">$ 84,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 125,400<span></span>
</td>
<td class="nump">$ 262,100<span></span>
</td>
<td class="nump">$ 310,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiability', window );">Deferred revenue</a></td>
<td class="nump">$ 412,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 412,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 465,800<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember', window );">Biogen [Member] | Revenue [Member] | Strategic Partner [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConcentrationRiskPercentage1', window );">Concentration percentage</a></td>
<td class="nump">63.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">78.00%<span></span>
</td>
<td class="nump">71.00%<span></span>
</td>
<td class="nump">71.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember', window );">Biogen [Member] | SPINRAZA Royalties [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">$ 66,600<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 74,200<span></span>
</td>
<td class="nump">$ 198,700<span></span>
</td>
<td class="nump">$ 211,900<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember', window );">Biogen [Member] | R&amp;D Revenue [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">17,400<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 51,200<span></span>
</td>
<td class="nump">63,400<span></span>
</td>
<td class="nump">$ 98,600<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember', window );">Biogen [Member] | Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CumulativePaymentsReceived', window );">Cumulative payments received</a></td>
<td class="nump">3,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember', window );">2013 Strategic Neurology [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NextPotentialPayment', window );">Next prospective payment</a></td>
<td class="nump">$ 8,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 8,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInSeptember2013WithBiogenMember', window );">2013 Strategic Neurology [Member] | ION541 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 10,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_CollaborativeArrangementAndLicensingAgreementAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_CumulativePaymentsReceived">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cumulative amount of payments received under the collaboration agreement as of the end of the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_CumulativePaymentsReceived</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NextPotentialPayment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The next potential payment to be earned under the collaboration agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NextPotentialPayment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NumberOfMedicinesBeingDeveloped">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of medicines currently being developed under the collaboration agreement(s).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NumberOfMedicinesBeingDeveloped</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskPercentage1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 18<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6351-108592<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=123594938&amp;loc=d3e13531-108611<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 21<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123594938&amp;loc=d3e13537-108611<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6404-108592<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskPercentage1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130532-203044<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ions_SpinrazaRoyaltiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ions_SpinrazaRoyaltiesMember</td>
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<tr>
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<td></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ions_ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ions_ResearchAndDevelopmentRevenueUnderCollaborativeAgreementsMember</td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementsAndLicensingAgreementsBiogenMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_RevenueFromContractWithCustomerMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_RevenueFromContractWithCustomerMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Collaborative Arrangements and Licensing Agreements, Novartis (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
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<th class="th"><div>Aug. 31, 2021</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CumulativePaymentsReceived', window );">Cumulative payments received</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">425,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">425,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember', window );">Novartis [Member] | Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_NextPotentialMilestonePayment', window );">Next prospective milestone</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">75,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 75,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember', window );">Novartis [Member] | Pelacarsen [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue</a></td>
<td class="nump">$ 25,000<span></span>
</td>
<td class="nump">$ 25,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_PercentageEnrollmentInPhase3Study', window );">Percentage enrollment in Lp(a) HORIZON Phase 3 cardiovascular outcome study</a></td>
<td class="nump">50.00%<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_CollaborativeArrangementAndLicensingAgreementAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_CumulativePaymentsReceived">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cumulative amount of payments received under the collaboration agreement as of the end of the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_CumulativePaymentsReceived</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_NextPotentialMilestonePayment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The next potential milestone payment to be earned under the collaboration agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_NextPotentialMilestonePayment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_PercentageEnrollmentInPhase3Study">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage enrollment in the Lp(a) HORIZON Phase 3 cardiovascular outcome study of pelacarsen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_PercentageEnrollmentInPhase3Study</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborativeArrangementAndLicensingAgreementEnteredIntoInJanuary2017WithNovartisMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ions_PelacarsenMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ions_PelacarsenMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504823492312">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Collaborative Arrangements and Licensing Agreements, Bicycle License Agreement (Details) - Bicycle License Agreement [Member] - USD ($)<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jul. 31, 2021</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract', window );"><strong>Collaborative Arrangement and Licensing Agreement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_PaymentsMadeUnderCollaborationAgreement', window );">Payment of license fee</a></td>
<td class="nump">$ 42.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_LockUpAgreementTermOfTradingRestriction', window );">Trading restriction period under lock up agreement</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">1 year<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_InvestmentInEquitySecuritiesFvNi', window );">Equity investment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 7.2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">R&amp;D expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">34.8<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CumulativePaymentsMade', window );">Cumulative payments made</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 45.0<span></span>
</td>
<td class="nump">$ 45.0<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_CollaborativeArrangementAndLicensingAgreementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_CollaborativeArrangementAndLicensingAgreementAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_CumulativePaymentsMade">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cumulative amount of payments made under the collaboration agreement as of the end of the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_CumulativePaymentsMade</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_InvestmentInEquitySecuritiesFvNi">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Acquisition of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_InvestmentInEquitySecuritiesFvNi</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_LockUpAgreementTermOfTradingRestriction">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period after completion of initial public offering by an equity investee and restriction to sell equity holding in the investee, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_LockUpAgreementTermOfTradingRestriction</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the cash outflow for payments made under the collaboration agreement for the reimbursement of support received in connection with the Company's Huntington's disease program.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_PaymentsMadeUnderCollaborationAgreement</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ResearchAndDevelopmentExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 912<br> -SubTopic 730<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6472174&amp;loc=d3e58812-109433<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 985<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6501960&amp;loc=d3e128462-111756<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 730<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6420194&amp;loc=d3e21568-108373<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ResearchAndDevelopmentExpense</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=ions_CollaborationAgreementEnteredIntoInDecember2020WithBicycleMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504825164344">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Convertible Debt (Details) - USD ($)<br> $ / shares in Units, $ in Thousands, shares in Millions</strong></div></th>
<th class="th" colspan="2">1 Months Ended</th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Apr. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2019</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repurchase of convertible notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 256,963<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_CallSpread', window );">Cost of call spread</a></td>
<td class="nump">$ 46,900<span></span>
</td>
<td class="nump">$ 52,600<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForHedgeFinancingActivities', window );">Purchase of note hedges</a></td>
<td class="nump">136,700<span></span>
</td>
<td class="nump">108,700<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">136,620<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfWarrants', window );">Proceeds from issuance of warrants</a></td>
<td class="nump">89,800<span></span>
</td>
<td class="nump">$ 56,100<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">89,752<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on early retirement of debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="num">(8,627)<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember', window );">0% Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face amount of offering</a></td>
<td class="nump">632,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Outstanding principal balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">632,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">632,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized debt issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 14,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 14,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentMaturityDate', window );">Maturity date</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">Apr. 30,  2026<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price per share (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 57.84<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 57.84<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread', window );">Effective conversion price per share with call spread (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 76.39<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 76.39<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentConvertibleSharesSubjectToConversion', window );">Total shares of common stock subject to conversion (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">10.9<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">10.9<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange', window );">Percentage of principal amount used as purchase price upon occurrence of fundamental change</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember', window );">0.125% Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Outstanding principal balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 548,800<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 548,800<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized debt issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 7,100<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 7,100<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentMaturityDate', window );">Maturity date</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">Dec. 31,  2024<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price per share (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 83.28<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 83.28<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread', window );">Effective conversion price per share with call spread (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 123.38<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 123.38<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentConvertibleSharesSubjectToConversion', window );">Total shares of common stock subject to conversion (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">6.6<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">6.6<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange', window );">Percentage of principal amount used as purchase price upon occurrence of fundamental change</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember', window );">1% Notes [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract', window );"><strong>Convertible Debt [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentRepurchasedFaceAmount', window );">Principal amount repurchased</a></td>
<td class="nump">247,900<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 247,900<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 247,900<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repurchase of convertible notes</a></td>
<td class="nump">257,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Outstanding principal balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">62,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">62,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized debt issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 30<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 30<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentMaturityDate', window );">Maturity date</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">Nov. 30,  2021<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
<td class="nump">1.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1.40%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1.40%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price per share (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 66.81<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 66.81<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentConvertibleSharesSubjectToConversion', window );">Total shares of common stock subject to conversion (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.9<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.9<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on early retirement of debt</a></td>
<td class="nump">$ 8,600<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange', window );">Percentage of principal amount used as purchase price upon occurrence of fundamental change</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_CallSpread">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net cash outflow from payments for hedge transactions and proceeds from the issuance of warrants. The call spread transaction was entered into to minimize the impact of potential economic dilution upon conversion of the 0.125% notes issued.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_CallSpread</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The computed conversion price per share of the debt instrument based on the the conversion feature embedded in the debt instrument and the impact of the purchased hedges in the call spread transaction.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_DebtInstrumentConvertibleConversionPriceIncludingCallSpread</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The percentage of the principal amount of the notes to be purchased, plus accrued and unpaid interest, upon the occurrence of certain fundamental changes, as set forth in the indenture governing the convertible notes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_DebtInstrumentConvertiblePercentageOfPrincipalAmountUsedAsPurchasePriceUponOccurrenceOfFundamentalChange</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_DebtInstrumentConvertibleSharesSubjectToConversion">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of shares of common stock subject to conversion if the debt was converted to equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_DebtInstrumentConvertibleSharesSubjectToConversion</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentCarryingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466204&amp;loc=SL6031897-161870<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentCarryingAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentConvertibleConversionPrice1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The price per share of the conversion feature embedded in the debt instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466204&amp;loc=SL6031898-161870<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentConvertibleConversionPrice1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentFaceAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face (par) amount of debt instrument at time of issuance.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28551-108399<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=114775985&amp;loc=d3e28878-108400<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124429444&amp;loc=SL124452920-239629<br><br>Reference 5: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69C<br> -URI http://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495737-112612<br><br>Reference 6: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69B<br> -URI http://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495735-112612<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentFaceAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateEffectivePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466204&amp;loc=SL6036836-161870<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28551-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124429444&amp;loc=SL124452920-239629<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateEffectivePercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentMaturityDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123874694&amp;loc=d3e19207-110258<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentMaturityDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentRepurchasedFaceAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face (par) amount of the original debt instrument that was repurchased.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentRepurchasedFaceAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredFinanceCostsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1D<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495340-112611<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28555-108399<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredFinanceCostsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123467658&amp;loc=d3e12355-112629<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467658&amp;loc=d3e12317-112629<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForHedgeFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 27<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3581-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForHedgeFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfWarrants">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfWarrants</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RepaymentsOfConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes0125PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ions_ConvertibleSeniorNotes1PercentMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
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<tr>
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<tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504824087208">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Severance and Retention Costs, Akcea Merger (Details) - Akcea Merger [Member]<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringAndRelatedCostExpectedCost1', window );">Total estimated expenses</a></td>
<td class="nump">$ 27.2<span></span>
</td>
<td class="nump">$ 27.2<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1', window );">Expenses incurred from inception to September 30, 2021</a></td>
<td class="nump">27.0<span></span>
</td>
<td class="nump">27.0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1', window );">Remaining estimated expenses to be recognized through October 2021</a></td>
<td class="nump">0.2<span></span>
</td>
<td class="nump">0.2<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringReserve', window );">Beginning balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">14.7<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCharges', window );">Amounts expensed during the period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">13.5<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringReserveAccrualAdjustment1', window );">Reserve adjustments during the period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(1.8)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments', window );">Net amount expensed during the period</a></td>
<td class="nump">1.9<span></span>
</td>
<td class="nump">11.7<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForRestructuring', window );">Amounts paid during the period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(20.6)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringReserve', window );">Ending balance</a></td>
<td class="nump">5.8<span></span>
</td>
<td class="nump">5.8<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostAndReserveAxis=ions_AkceaAcquisitionMember', window );">Research, Development and Patent Expenses [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments', window );">Net amount expensed during the period</a></td>
<td class="nump">1.3<span></span>
</td>
<td class="nump">5.1<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostAndReserveAxis=ions_AkceaAcquisitionMember', window );">Selling, General and Administrative Expenses [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments', window );">Net amount expensed during the period</a></td>
<td class="nump">$ 0.6<span></span>
</td>
<td class="nump">$ 6.6<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expenses associated with exit or disposal activities pursuant to an authorized plan, net of adjustments to a previously accrued restructuring liability. Excludes expenses related to a discontinued operation or an asset retirement obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForRestructuring">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 17<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3367-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForRestructuring</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of costs incurred to date for the specified restructuring cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(d))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringAndRelatedCostCostIncurredToDate1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringAndRelatedCostExpectedCost1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount expected to be recognized in earnings for the specified restructuring cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(d))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringAndRelatedCostExpectedCost1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expected cost remaining for the specified restructuring cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringCharges">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109237686&amp;loc=d3e17752-110868<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 5.P.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140864-122747<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringCharges</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringCostsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringCostsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringReserve">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 5.P.4(b)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringReserve</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringReserveAccrualAdjustment1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringReserveAccrualAdjustment1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringCostAndReserveAxis=ions_AkceaAcquisitionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringCostAndReserveAxis=ions_AkceaAcquisitionMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=ions_ResearchDevelopmentAndPatentExpensesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=ions_ResearchDevelopmentAndPatentExpensesMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td>na</td>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504816826104">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Severance and Retention Costs, Restructured European Operations (Details) - Restructured European Operations [Member]<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringAndRelatedCostExpectedCost1', window );">Total estimated expenses</a></td>
<td class="nump">$ 14.2<span></span>
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<td class="nump">$ 14.2<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1', window );">Expenses incurred from inception to September 30, 2021</a></td>
<td class="nump">14.0<span></span>
</td>
<td class="nump">14.0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1', window );">Remaining estimated expenses to be recognized through October 2021</a></td>
<td class="nump">0.2<span></span>
</td>
<td class="nump">0.2<span></span>
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</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringReserve', window );">Beginning balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">12.4<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCharges', window );">Amounts expensed during the period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2.5<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringReserveAccrualAdjustment1', window );">Reserve adjustments during the period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(0.8)<span></span>
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</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments', window );">Net amount expensed during the period</a></td>
<td class="nump">0.6<span></span>
</td>
<td class="nump">1.7<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForRestructuring', window );">Amounts paid during the period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(13.4)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringReserve', window );">Ending balance</a></td>
<td class="nump">0.7<span></span>
</td>
<td class="nump">0.7<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostAndReserveAxis=ions_RestructuredEuropeanOperationsMember', window );">Research, Development and Patent Expenses [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments', window );">Net amount expensed during the period</a></td>
<td class="nump">0.5<span></span>
</td>
<td class="nump">0.6<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostAndReserveAxis=ions_RestructuredEuropeanOperationsMember', window );">Selling, General and Administrative Expenses [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments', window );">Net amount expensed during the period</a></td>
<td class="nump">$ 0.1<span></span>
</td>
<td class="nump">$ 1.1<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expenses associated with exit or disposal activities pursuant to an authorized plan, net of adjustments to a previously accrued restructuring liability. Excludes expenses related to a discontinued operation or an asset retirement obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ions_RestructuringReserveRestructuringChargesNetOfReserveAdjustments</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ions_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForRestructuring">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 17<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3367-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of costs incurred to date for the specified restructuring cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(d))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringAndRelatedCostCostIncurredToDate1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringAndRelatedCostExpectedCost1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount expected to be recognized in earnings for the specified restructuring cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(d))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringAndRelatedCostExpectedCost1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expected cost remaining for the specified restructuring cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
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<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringCharges">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109237686&amp;loc=d3e17752-110868<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 5.P.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140864-122747<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringCharges</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringCostsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringCostsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringReserve">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 5.P.4(b)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringReserve</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringReserveAccrualAdjustment1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringReserveAccrualAdjustment1</td>
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<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<td><strong> Name:</strong></td>
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</table></div>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm140504817050552">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Severance and Retention Costs, Restructured North American TEGSEDI Operations (Details) - Restructured North American TEGSEDI Operations [Member] - USD ($)<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringReserve', window );">Beginning balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0.0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCharges', window );">Amounts expensed during the period</a></td>
<td class="nump">$ 9.4<span></span>
</td>
<td class="nump">9.4<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForRestructuring', window );">Amounts paid during the period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(9.2)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringReserve', window );">Ending balance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0.2<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostAndReserveAxis=ions_RestructuredNorthAmericanTegsediOperationsMember', window );">Research, Development and Patent Expenses [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCharges', window );">Amounts expensed during the period</a></td>
<td class="nump">2.3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostAndReserveAxis=ions_RestructuredNorthAmericanTegsediOperationsMember', window );">Selling, General and Administrative Expenses [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCostsAbstract', window );"><strong>Severance and Retention Costs [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestructuringCharges', window );">Amounts expensed during the period</a></td>
<td class="nump">$ 7.1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForRestructuring">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 17<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3367-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForRestructuring</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringCharges">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109237686&amp;loc=d3e17752-110868<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 5.P.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140864-122747<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.P.4(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringCharges</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringCostsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringCostsAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestructuringReserve">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=6394359&amp;loc=d3e17939-110869<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 420<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 5.P.4(b)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=115931487&amp;loc=d3e140904-122747<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestructuringReserve</td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
