<SEC-DOCUMENT>0001193125-24-167938.txt : 20240625
<SEC-HEADER>0001193125-24-167938.hdr.sgml : 20240625
<ACCEPTANCE-DATETIME>20240625170102
ACCESSION NUMBER:		0001193125-24-167938
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20240620
ITEM INFORMATION:		Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
ITEM INFORMATION:		Submission of Matters to a Vote of Security Holders
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20240625
DATE AS OF CHANGE:		20240625

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOGEN INC.
		CENTRAL INDEX KEY:			0000875045
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				330112644
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19311
		FILM NUMBER:		241069744

	BUSINESS ADDRESS:	
		STREET 1:		225 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		7814642000

	MAIL ADDRESS:	
		STREET 1:		225 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BIOGEN IDEC INC.
		DATE OF NAME CHANGE:	20070427

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BIOGEN IDEC INC
		DATE OF NAME CHANGE:	20031112

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IDEC PHARMACEUTICALS CORP / DE
		DATE OF NAME CHANGE:	19970530
</SEC-HEADER>
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<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left"><span style="white-space:nowrap">Pre-commencement</span> communications pursuant to Rule <span style="white-space:nowrap">14d-2(b)</span> under the Exchange Act (17 CFR <span style="white-space:nowrap">240.14d-2(b))</span></p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left"><span style="white-space:nowrap">Pre-commencement</span> communications pursuant to Rule <span style="white-space:nowrap">13e-4(c)</span> under the Exchange Act (17 CFR <span style="white-space:nowrap">240.13e-4(c))</span></p></td></tr></table> <p style="margin-top:8pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">Securities registered pursuant to Section&#160;12(b) of the Act:</p> <p style="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style=" text-align: center;margin:auto; border-bottom:1.00pt solid #000000;vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Title&#160;of&#160;each&#160;class</p></td>
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<td style="vertical-align:bottom">&#160;</td>
<td style=" text-align: center;margin:auto; border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Name&#160;of&#160;each&#160;exchange</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">on&#160;which&#160;registered</p></td></tr>
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<td style=" text-align: center;margin:auto; vertical-align:top"><ix:nonNumeric name="dei:TradingSymbol" contextRef="duration_2024-06-20_to_2024-06-20" id="ixv-903">BIIB</ix:nonNumeric></td>
<td style="vertical-align:bottom">&#160;</td>
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<td style="width:11%;vertical-align:top" align="left"><span style="font-weight:bold">Item&#8201;5.03</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;font-weight:bold;text-align:left">Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year. </p></td></tr></table> <p style="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">On June&#160;20, 2024, Biogen Inc. (the &#8220;Company&#8221;) held its 2024 Annual Meeting of Stockholders (the &#8220;Annual Meeting&#8221;). At the Annual Meeting, the Company&#8217;s stockholders approved and adopted a Certificate of Amendment (the &#8220;Certificate of Amendment&#8221;) of the Company&#8217;s Amended and Restated Certificate of Incorporation, as amended, to allow for exculpation of certain Company officers to the extent permitted by Delaware law. On June&#160;20, 2024, the Company filed the Certificate of Amendment with the Secretary of State of the State of Delaware. </p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">The Certificate of Amendment had previously been approved, subject to stockholder approval, by the Company&#8217;s Board of Directors. </p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">A description of the Certificate of Amendment is set forth in the Company&#8217;s definitive proxy statement on Schedule 14A filed with the U.S. Securities and Exchange Commission on April&#160;26, 2024 (the &#8220;Proxy Statement&#8221;) in the section entitled &#8220;Proposal 4 &#8211; Approve an Amendment to Biogen&#8217;s Amended and Restated Certificate of Incorporation, as amended, to Add Officer Exculpation Provision,&#8221; which description is incorporated herein by reference. The foregoing description of the Certificate of Amendment is qualified in its entirety by reference to the full text of the Certificate of Amendment, a copy of which is filed as Exhibit 3.1 to this Current Report on Form <span style="white-space:nowrap">8-K</span> and is incorporated herein by reference. </p> <p style="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="width:11%;vertical-align:top" align="left"><span style="font-weight:bold">Item&#8201;5.07</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;font-weight:bold;text-align:left">Submission of Matters to a Vote of Security Holders. </p></td></tr></table> <p style="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">On June&#160;20, 2024, the Company held its Annual Meeting. The final voting results for the Annual Meeting are as follows: </p> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top" align="left">1.</td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left">Stockholders elected nine nominees to the Board of Directors to serve for a <span style="white-space:nowrap">one-year</span> term extending until the 2025 annual meeting of stockholders and their successors are duly elected and qualified, with the votes cast as follows: </p></td></tr></table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="vertical-align:bottom;white-space:nowrap"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:ARIAL;font-weight:bold">Nominee</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td colspan="2" align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"><span style="font-weight:bold">Votes&#160;For</span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td colspan="2" align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"><span style="font-weight:bold">Votes&#160;Against</span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td colspan="2" align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"><span style="font-weight:bold">Abstentions</span></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td colspan="2" align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"><span style="font-weight:bold"><span style="white-space:nowrap">Broker&#160;Non-Votes</span></span></td>
<td style="vertical-align:bottom">&#160;</td></tr>


<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">Caroline D. Dorsa</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">87,883,981</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">31,591,984</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">84,665</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">Maria C. Freire</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">100,691,870</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">18,771,139</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">97,621</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">William A. Hawkins</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">95,931,549</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">23,539,595</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">89,486</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">Susan K. Langer</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">92,603,948</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">26,870,919</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">85,763</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">Jesus B. Mantas</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">99,615,562</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">19,856,501</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">88,567</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">Monish Patolawala</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">119,078,211</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">388,227</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">94,192</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">Eric K. Rowinsky</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">96,514,372</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">22,954,348</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">91,910</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">Stephen A. Sherwin</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">101,152,837</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">18,318,068</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">89,725</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
<tr style="font-size:1px">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td style="vertical-align:bottom"> <p style=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&#160;</p></td>
<td>&#160;</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:ARIAL">Christopher A. Viehbacher</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">118,593,483</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">886,743</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">80,404</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td>
<td style="white-space:nowrap;vertical-align:bottom" align="right">9,672,399</td>
<td style="white-space:nowrap;vertical-align:bottom">&#160;</td></tr>
</table>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:center">1 </p>

</div></div>



<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%"/>

<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">

<table style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top" align="left">2.</td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left">Stockholders ratified the selection of PricewaterhouseCoopers LLP as the Company&#8217;s independent registered public accounting firm for the fiscal year ending December&#160;31, 2024, with the votes cast as follows: </p></td></tr></table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:8pt;width:84%;border:0;margin:0 auto">


<tr>

<td style="width:24%"/>

<td style="vertical-align:bottom"/>
<td style="width:24%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:25%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:24%"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:8pt">
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;For</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;Against</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Abstentions</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center"><span style="white-space:nowrap">Broker&#160;Non-Votes</span></p></td></tr>


<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:bottom" align="center">123,728,418</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">5,348,316</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">156,295</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">&#8212;</td></tr>
</table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top" align="left">3.</td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left">Stockholders approved the advisory vote on executive compensation, with the votes cast as follows: </p></td></tr></table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:8pt;width:84%;border:0;margin:0 auto">


<tr>

<td style="width:24%"/>

<td style="vertical-align:bottom"/>
<td style="width:24%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:25%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:24%"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:8pt">
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;For</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;Against</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Abstentions</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center"><span style="white-space:nowrap">Broker&#160;Non-Votes</span></p></td></tr>


<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:bottom" align="center">114,367,799</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">5,054,473</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">138,358</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">9,672,399</td></tr>
</table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top" align="left">4.</td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left">Stockholders approved the amendment to Biogen&#8217;s Amended and Restated Certificate of Incorporation, as amended, to add an officer exculpation provision, with the votes cast as follows: </p></td></tr></table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:8pt;width:84%;border:0;margin:0 auto">


<tr>

<td style="width:24%"/>

<td style="vertical-align:bottom"/>
<td style="width:24%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:25%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:24%"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:8pt">
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;For</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;Against</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Abstentions</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center"><span style="white-space:nowrap">Broker&#160;Non-Votes</span></p></td></tr>


<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:bottom" align="center">103,146,578</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">16,274,796</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">139,256</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">9,672,399</td></tr>
</table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top" align="left">5.</td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left">Stockholders approved the adoption of the Biogen Inc. 2024 Omnibus Equity Plan, with the votes cast as follows: </p></td></tr></table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:8pt;width:84%;border:0;margin:0 auto">


<tr>

<td style="width:24%"/>

<td style="vertical-align:bottom"/>
<td style="width:24%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:25%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:24%"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:8pt">
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;For</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;Against</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Abstentions</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center"><span style="white-space:nowrap">Broker&#160;Non-Votes</span></p></td></tr>


<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:bottom" align="center">112,726,169</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">6,693,956</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">140,505</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">9,672,399</td></tr>
</table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:4%">&#160;</td>
<td style="width:5%;vertical-align:top" align="left">6.</td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:left">Stockholders approved the adoption of the Biogen Inc. 2024 Employee Stock Purchase Plan, with the votes cast as follows: </p></td></tr></table> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:8pt;width:84%;border:0;margin:0 auto">


<tr>

<td style="width:24%"/>

<td style="vertical-align:bottom"/>
<td style="width:24%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:25%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:24%"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:8pt">
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;For</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Votes&#160;Against</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center">Abstentions</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td align="center" style="border-bottom:1.00pt solid #000000;vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold;text-align:center"><span style="white-space:nowrap">Broker&#160;Non-Votes</span></p></td></tr>


<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt;background-color:#cceeff">
<td style="vertical-align:bottom" align="center">119,064,435</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">413,475</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">82,720</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom" align="center">9,672,399</td></tr>
</table> <p style="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;border:0;width:100%" cellpadding="0" cellspacing="0">
<tr style="page-break-inside:avoid">
<td style="width:11%;vertical-align:top" align="left"><span style="font-weight:bold">Item&#8201;9.01</span></td>
<td align="left" style="vertical-align:top"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;font-weight:bold;text-align:left">Financial Statements and Exhibits. </p></td></tr></table> <p style="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">(d) Exhibits. </p> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">The exhibits listed below are furnished as part of this Current Report on Form <span style="white-space:nowrap">8-K.</span> </p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;width:100%;border:0;margin:0 auto">


<tr>

<td/>

<td style="vertical-align:bottom;width:5%"/>
<td style="width:92%"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:8pt">
<td style="vertical-align:bottom;white-space:nowrap"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:ARIAL;font-weight:bold">Exhibit</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:ARIAL;font-weight:bold">No.</p></td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:bottom;white-space:nowrap"><span style="font-weight:bold">Description</span></td></tr>


<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">3.1</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top"><a href="d840763dex31.htm">Certificate of Amendment of Biogen Inc.&#8217;s Amended and Restated Certificate of Incorporation, as amended. </a></td></tr>
<tr style="font-size:1pt">
<td style="height:6pt"/>
<td style="height:6pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:top;white-space:nowrap">104</td>
<td style="vertical-align:bottom">&#160;&#160;</td>
<td style="vertical-align:top">Cover Page Interactive Data File (embedded within the Inline XBRL document).</td></tr>
</table>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:center">2 </p>

</div></div>



<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<hr style="color:#999999;height:3px;width:100%"/>

<div style="text-align:center"><div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto">
 <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:center"><span style="color:#0075c9"><span style="font-weight:bold">Signatures </span></span></p> <p style="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:ARIAL">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. </p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p><div>
<table cellspacing="0" cellpadding="0" style="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt;width:40%;border:0;margin-left:auto">


<tr>

<td style="width:7%"/>

<td style="vertical-align:bottom;width:1%"/>
<td style="width:92%"/></tr>


<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:top" colspan="3"><span style="font-weight:bold">Biogen&#160;Inc.</span></td></tr>
<tr style="font-size:1pt">
<td style="height:12pt"/>
<td style="height:12pt" colspan="2"/></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:top">By:</td>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom"> <p style="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:ARIAL">/s/ Wendell Taylor</p></td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">Wendell Taylor</td></tr>
<tr style="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<td style="vertical-align:bottom"/>
<td style="vertical-align:bottom">&#160;</td>
<td style="vertical-align:bottom">Secretary</td></tr>
</table></div> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">Date: June&#160;25, 2024 </p>
 <p style="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&#160;</p> <p style="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL;text-align:center">3 </p>

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<HTML><HEAD>
<TITLE>EX-3.1</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE" STYLE="line-height:Normal">

<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL" ALIGN="right"><B>Exhibit 3.1 </B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL" ALIGN="center"><B>CERTIFICATE OF AMENDMENT </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL" ALIGN="center"><B>TO THE </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL" ALIGN="center"><B>CERTIFICATE OF INCORPORATION OF </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL" ALIGN="center"><B>BIOGEN INC.
</B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL" ALIGN="center">Pursuant to Section&nbsp;242 of the General </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL" ALIGN="center">Corporation Law of the State of Delaware </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">Biogen Inc. (hereinafter referred to as
the &#147;Corporation&#148;), a corporation duly organized and existing under the Delaware General Corporation Law (the &#147;DGCL&#148;), does hereby certify as follows: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL"><B>FIRST</B>:<B> </B>That resolutions were duly adopted setting forth a proposed amendment to Article X of the Certificate of Incorporation of said corporation,
declaring said amendment to be advisable and directing that the proposed amendment be considered at the next annual meeting of the stockholders. As amended pursuant to such resolutions, Article X of the Certificate of Incorporation shall be as
follows: </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL" ALIGN="center"><I>ARTICLE X </I></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">A director or officer of the
Corporation shall not be personally liable to the Corporation or its stockholders for monetary damages for any breach of fiduciary duty as a director or officer, except for liability (i)&nbsp;for any breach of the director&#146;s or officer&#146;s
duty of loyalty to the Corporation or its stockholders, (ii)&nbsp;for acts or omissions by a director or officer not in good faith or which involve intentional misconduct or a knowing violation of law, (iii)&nbsp;for a director, under
Section&nbsp;174 of the Delaware General Corporation Law, (iv)&nbsp;for any transaction from which the director or officer derived an improper personal benefit, or (v)&nbsp;for any action by an officer by or in right of the Corporation. If the
Delaware General Corporation Law is amended after approval of this Article to authorize corporate action further eliminating or limiting the personal liability of directors or officers, then the liability of a director or officer shall be eliminated
or limited to the fullest extent permitted by the Delaware General Corporation Law, as so amended. Any repeal or modification of the foregoing provisions of this Article X shall not adversely affect any right or protection of a director or officer
of the Corporation with respect to any acts or omissions of such director or officer occurring prior to such repeal or modification. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL"><B>SECOND</B>:<B> </B>The
foregoing amendment was duly adopted in accordance with Section&nbsp;242 of the DGCL. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL"><B>THIRD</B>:<B> </B>The effective date of the amendment shall be
June&nbsp;20, 2024. </P>
</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always"> </p>
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">

<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:ARIAL">IN WITNESS WHEREOF, the Corporation has caused this Certificate of Amendment to be duly executed in its name this 20<SUP
STYLE="font-size:75%; vertical-align:top">th</SUP> day of June, 2024. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:ARIAL; font-size:10pt">


<TR>

<TD WIDTH="7%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="92%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">BIOGEN INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:ARIAL">/s/ Wendell Taylor</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<TD ???? 1 VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name: Wendell Taylor</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:ARIAL; font-size:10pt">
<TD ???? 1 VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title: Corporate Secretary</TD></TR>
</TABLE></DIV>
</DIV></Center>

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<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>biib-20240620.xsd
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<?xml version="1.0" encoding="us-ascii"?>
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<FILENAME>biib-20240620_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
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    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
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    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressStateOrProvince" xlink:type="locator" xlink:label="dei_EntityAddressStateOrProvince" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressPostalZipCode" xlink:type="locator" xlink:label="dei_EntityAddressPostalZipCode" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CityAreaCode" xlink:type="locator" xlink:label="dei_CityAreaCode" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_CityAreaCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_CityAreaCode_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LocalPhoneNumber" xlink:type="locator" xlink:label="dei_LocalPhoneNumber" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_LocalPhoneNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_LocalPhoneNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_WrittenCommunications" xlink:type="locator" xlink:label="dei_WrittenCommunications" />
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    <link:label xml:lang="en-US" xlink:label="dei_WrittenCommunications_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Written Communications</link:label>
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    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SolicitingMaterial" xlink:type="locator" xlink:label="dei_SolicitingMaterial" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SolicitingMaterial" xlink:to="dei_SolicitingMaterial_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_SolicitingMaterial_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Soliciting Material</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_SolicitingMaterial_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Soliciting Material</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementTenderOffer" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementTenderOffer" xlink:to="dei_PreCommencementTenderOffer_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Pre Commencement Tender Offer</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Commencement Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementIssuerTenderOffer" xlink:type="locator" xlink:label="dei_PreCommencementIssuerTenderOffer" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementIssuerTenderOffer" xlink:to="dei_PreCommencementIssuerTenderOffer_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Pre Commencement Issuer Tender Offer</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre Commencement Issuer Tender Offer</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
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    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Security 12b Title</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_Security12bTitle_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security 12b Title</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl" />
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    <link:label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SecurityExchangeName" xlink:type="locator" xlink:label="dei_SecurityExchangeName" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_SecurityExchangeName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_SecurityExchangeName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityEmergingGrowthCompany" xlink:type="locator" xlink:label="dei_EntityEmergingGrowthCompany" />
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" />
    <link:label xml:lang="en-US" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>5
<FILENAME>biib-20240620_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
<XBRL>
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    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CurrentFiscalYearEndDate" xlink:type="locator" xlink:label="dei_CurrentFiscalYearEndDate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_CurrentFiscalYearEndDate" order="24.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
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    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_DocumentType" order="26.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
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    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCityOrTown" xlink:type="locator" xlink:label="dei_EntityAddressCityOrTown" />
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    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_PreCommencementTenderOffer" order="40.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
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    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="dei_CoverAbstract" xlink:to="dei_PreCommencementIssuerTenderOffer" order="41.001" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12bTitle" xlink:type="locator" xlink:label="dei_Security12bTitle" />
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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g840763g0622075048132.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
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<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/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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<span style="display: none;">v3.24.1.1.u2</span><table class="report" border="0" cellspacing="2" id="idm140326319646816">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Document and Entity Information<br></strong></div></th>
<th class="th"><div>Jun. 20, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CoverAbstract', window );"><strong>Cover [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="Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000875045<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CurrentFiscalYearEndDate', window );">Current Fiscal Year End Date</a></td>
<td class="text">--12-31<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Jun. 20,  2024<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">Biogen Inc.<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation State Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">0-19311<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">33-0112644<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">225 Binney Street<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Cambridge<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">MA<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">02142<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">(617)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">679-2000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre Commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre Commencement Issuer Tender Offer</a></td>
<td class="text">false<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="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Security 12b Title</a></td>
<td class="text">Common Stock, $0.0005 par value<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">BIIB<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
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<div style="display: none;">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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>
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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>
<td>xbrli:normalizedStringItemType</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>
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<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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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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<td><strong> Balance Type:</strong></td>
<td>na</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_dei_CurrentFiscalYearEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>xbrli:gMonthDayItemType</td>
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<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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>
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<td>dei:submissionTypeItemType</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_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="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-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="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-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="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-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="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-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="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 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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_PreCommencementIssuerTenderOffer</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_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="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 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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_PreCommencementTenderOffer</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_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ 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="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="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="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="Show.toggleNext( this );">+ 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_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="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> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ 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_SolicitingMaterial</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>
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<a href="javascript:void(0);" onclick="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="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Balance Type:</strong></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_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
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