<SEC-DOCUMENT>0001206774-21-001419.txt : 20210510
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<ACCEPTANCE-DATETIME>20210510162033
ACCESSION NUMBER:		0001206774-21-001419
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20210510
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20210510
DATE AS OF CHANGE:		20210510

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GERON CORP
		CENTRAL INDEX KEY:			0000886744
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				752287752
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20859
		FILM NUMBER:		21907518

	BUSINESS ADDRESS:	
		STREET 1:		919 EAST HILLSDALE BOULEVARD
		STREET 2:		SUITE 250
		CITY:			FOSTER CITY
		STATE:			CA
		ZIP:			94404
		BUSINESS PHONE:		6504737700

	MAIL ADDRESS:	
		STREET 1:		919 EAST HILLSDALE BOULEVARD
		STREET 2:		SUITE 250
		CITY:			FOSTER CITY
		STATE:			CA
		ZIP:			94404

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GERON CORPORATION
		DATE OF NAME CHANGE:	19960521
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<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">UNITED STATES<br /></span><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">SECURITIES AND EXCHANGE COMMISSION <br />WASHINGTON, D.C. 20549<br /></span><span style="font-size: 10pt; font-family: Times New Roman">__________</span></p>

<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">FORM <span id="xdx_901_edei--DocumentType_c20210509__20210510_z2WzqOxTPgjd"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" name="dei:DocumentType">8-K</ix:nonNumeric></span></span></p>

<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">CURRENT REPORT<br /></span><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">PURSUANT TO SECTION 13 OR 15(d) OF THE <br />SECURITIES EXCHANGE ACT OF 1934</span></p>

<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman">Date of Report (Date of earliest event reported): </span><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold"><span id="xdx_909_edei--DocumentPeriodEndDate_c20210509__20210510_z4lPysDzYmpk"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" format="ixt:datemonthdayyearen" name="dei:DocumentPeriodEndDate">May 10, 2021</ix:nonNumeric></span></span></p>

<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold"><span id="xdx_90D_edei--EntityRegistrantName_c20210509__20210510_zKVEGgEsgV74"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" name="dei:EntityRegistrantName">GERON CORPORATION</ix:nonNumeric></span><br /></span><span style="font-size: 10pt; font-family: Times New Roman">(Exact name of registrant as specified in its charter)</span></p>

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<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold"><span id="xdx_903_edei--EntityAddressAddressLine1_c20210509__20210510_zoJiPUyuFdh1"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" name="dei:EntityAddressAddressLine1">919 E. HILLSDALE BLVD.</ix:nonNumeric></span>, <span id="xdx_900_edei--EntityAddressAddressLine2_c20210509__20210510_zdWU3bdBxOgl"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" name="dei:EntityAddressAddressLine2">SUITE 250</ix:nonNumeric></span><br /><span id="xdx_901_edei--EntityAddressCityOrTown_c20210509__20210510_ziNrT8OSb4yd"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" name="dei:EntityAddressCityOrTown">FOSTER CITY</ix:nonNumeric></span>, <span id="xdx_903_edei--EntityAddressStateOrProvince_c20210509__20210510_zJhOtogOfky7" style="text-transform: uppercase"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince">california</ix:nonNumeric></span> <span id="xdx_904_edei--EntityAddressPostalZipCode_c20210509__20210510_zDvIBlUDOjxg"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" name="dei:EntityAddressPostalZipCode">94404</ix:nonNumeric></span></span></p>

<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman">(Address of principal executive offices, including zip code)</span></p>

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<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">N/A<br /></span><span style="font-size: 10pt; font-family: Times New Roman">(Former name or former address, if changed since last report)</span></p>

<p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</span></p>
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   <p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></p></td></tr>

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   <p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></p></td></tr>

<tr>
   <td style="padding-right: 8pt">&#160;</td>
   <td>&#160;</td></tr>
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   <td style="width: 1%; padding-right: 8pt"><span style="font-size: 10pt; font-family: Times New Roman"><span id="xdx_906_edei--PreCommencementTenderOffer_c20210509__20210510_zNvRihRq2NB7"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" format="ixt:booleanfalse" name="dei:PreCommencementTenderOffer">&#9744;</ix:nonNumeric></span></span></td>

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   <p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></p></td></tr>

<tr>
   <td style="padding-right: 8pt">&#160;</td>
   <td>&#160;</td></tr>

<tr>

   <td style="width: 1%; padding-right: 8pt"><span style="font-size: 10pt; font-family: Times New Roman"><span id="xdx_903_edei--PreCommencementIssuerTenderOffer_c20210509__20210510_z5nOXyBapyUd"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" format="ixt:booleanfalse" name="dei:PreCommencementIssuerTenderOffer">&#9744;</ix:nonNumeric></span></span></td>

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   <p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></p></td></tr>
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<p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Securities registered pursuant to Section 12(b) of the Act:</span></p>
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   <td style="border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; width: 33%; white-space: nowrap; text-align: center"><span style="font-size: 10pt; font-family: Times New Roman">Title of each class</span></td>

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<tr style="vertical-align: bottom">

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<p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</span></p>

<p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Emerging growth company <span id="xdx_903_edei--EntityEmergingGrowthCompany_c20210509__20210510_zyQ2CschMk9l"><ix:nonNumeric contextRef="From2021-05-09to2021-05-10" format="ixt:booleanfalse" name="dei:EntityEmergingGrowthCompany">&#9744;</ix:nonNumeric></span></span><span style="font-size: 10pt; font-family: Arial"></span></p>

<p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. &#9744;</span><span style="font-size: 10pt; font-family: Arial"></span></p>

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<div style="page-break-before: always"></div>



<p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">Item 2.02 Results of Operations and Financial Condition</span></p>

<p style="text-indent: 15pt; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Geron Corporation (the &#8220;Company&#8221;) is furnishing this information under Item 2.02 of Form 8-K.</span></p>

<p style="text-indent: 15pt; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">The information in this Current Report, including Exhibit 99.1, is being furnished and shall not be deemed &#8220;filed&#8221; for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), or otherwise subject to the liabilities of that section. The information in this Current Report, including Exhibit 99.1, shall not be incorporated by reference into any registration statement or other document filed pursuant to the Securities Act of 1933, as amended, or the Exchange Act.</span></p>

<p style="text-indent: 15pt; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">On May 10, 2021, the Company issued a press release announcing its financial results for the three months ended March 31, 2021. A copy of the press release is attached as Exhibit 99.1.</span></p>

<p style="text-align: left"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">Item 9.01 Financial Statements and Exhibits</span></p>

<p style="text-indent: 15pt; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">(d) Exhibits</span></p>

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   <td style="border-bottom: Black 1pt solid; width: 1%; white-space: nowrap; text-align: center"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">Exhibit No.</span></td>

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   <td style="border-bottom: Black 1pt solid; width: 97%; white-space: nowrap; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">Description</span></td></tr>

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   <td style="width: 1%; white-space: nowrap; text-align: center">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</td>

   <td style="background-color: rgb(204,238,255); width: 1%; white-space: nowrap; text-align: center"><a href="geron3907701-ex991.htm" style="-sec-extract: exhibit"><span style="font-size: 10pt; font-family: Times New Roman">99.1</span></a></td>

   <td style="background-color: rgb(204,238,255); width: 1%; white-space: nowrap; text-align: center">&#160;&#160;&#160;&#160;&#160;</td>

   <td style="background-color: rgb(204,238,255); width: 97%; white-space: nowrap; text-align: left"><a href="geron3907701-ex991.htm" style="-sec-extract: exhibit"><span style="font-size: 10pt; font-family: Times New Roman">Press release dated May 10, 2021.</span></a></td></tr>                                                                                                                                                                                                    <tr style="vertical-align: bottom">
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   <td style="white-space: nowrap; text-align: center"><span style="font-size: 10pt; font-family: Times New Roman">104</span></td>
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<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman">1</span></p>

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<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman; font-weight: bold">SIGNATURE</span></p>

<p style="text-indent: 15pt; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">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.</span></p>

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   <td colspan="3" style="width: 50%; white-space: nowrap; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman"></span><span style="font-size: 10pt; font-family: Times New Roman"></span><span style="font-size: 10pt; font-family: Times New Roman">GERON CORPORATION</span></td></tr>

<tr>

   <td colspan="4" style="width: 100%">&#160;</td></tr>

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   <td style="width: 50%; white-space: nowrap; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Date:&#160;&#160;&#160;&#160;&#160;May 10, 2021</span></td>

   <td style="width: 1%"><span style="font-size: 10pt; font-family: Times New Roman">By:&#160;&#160;&#160;&#160;&#160;</span></td>

   <td colspan="2" style="border-bottom: black 1pt solid; width: 49%"><span style="font-size: 10pt; font-family: Times New Roman"></span><span style="font-size: 10pt; font-family: Times New Roman">/s/ Stephen N. Rosenfield</span></td></tr>

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   <td style="width: 1%; white-space: nowrap; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Name:&#160;&#160;&#160;&#160;&#160;</span></td>

   <td style="width: 48%; white-space: nowrap; text-align: left"><span style="font-size: 10pt; font-family: Times New Roman">Stephen N. Rosenfield</span></td></tr>

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   <td style="width: 1%; white-space: nowrap; text-align: left; vertical-align: top"><span style="font-size: 10pt; font-family: Times New Roman">Title:</span></td>

   <td style="width: 48%; white-space: nowrap; text-align: left; vertical-align: top"><span style="font-size: 10pt; font-family: Times New Roman">Executive Vice President, Chief Legal<br />Officer and Corporate Secretary</span></td></tr></table>


<p style="text-align: center"><span style="font-size: 10pt; font-family: Times New Roman">2</span></p>

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<DESCRIPTION>PRESS RELEASE DATED MAY 10, 2021
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<B><FONT size=2 face=Arial>EXHIBIT 99.1</FONT></B></P>
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<B><FONT size=2 face=Arial>Press Release Dated May 10, 2021</FONT></B></P>
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<P style="TEXT-ALIGN: center"><B><FONT size=2 face=Arial>Geron Corporation Reports First Quarter 2021 Financial Results and Recent Highlights</FONT></B></P>

<P style="TEXT-ALIGN: center"><I><FONT size=2 face=Arial>IMerge Phase 3 Clinical Trial in Myelodysplastic Syndromes 75% Enrolled and On&nbsp;Track&nbsp;to&nbsp;Complete&nbsp;Enrollment&nbsp;in&nbsp;Second&nbsp;Half&nbsp;of&nbsp;2021</FONT></I></P>

<P style="TEXT-ALIGN: center"><I><FONT size=2 face=Arial>Two Abstracts Accepted by European Hematology Association for 2021 Virtual Congress</FONT></I></P>

<P style="TEXT-ALIGN: center"><I><FONT size=2 face=Arial>Conference Call Scheduled for 4:30 p.m. ET Today</FONT></I></P>

<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>FOSTER CITY, Calif., May 10, 2021 </FONT></B><FONT size=2 face=Arial>-- Geron Corporation (Nasdaq: GERN), a late-stage clinical biopharmaceutical company developing a first-in-class telomerase inhibitor, imetelstat, to treat hematologic myeloid malignancies, today reported financial results for the first quarter ended March 31, 2021, as well as company highlights and upcoming events. As of March 31, 2021, the Company had $244.7 million in cash and marketable securities, which is expected to fund operations until the end of 2022.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>&#8220;We have worked diligently over the past quarter to advance our two Phase 3 clinical trials with registrational intent, and we remain laser focused on improving outcomes for patients and delivering significant value to our shareholders,&#8221; said John A. Scarlett, M.D., Geron&#8217;s Chairman and Chief Executive Officer.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>&#8220;Completing 75% of the planned enrollment in our MDS trial coupled with the recent dosing of the first patient in our MF trial indicate the continued progress we are making in our two Phase 3 clinical trials for imetelstat,&#8221; said Aleksandra Rizo, M.D., Ph.D., Geron&#8217;s Chief Medical Officer. &#8220;We continue to have confidence in imetelstat&#8217;s differentiating clinical benefits seen throughout the course of its development, including strong evidence of disease-modifying activity. We&#8217;re excited to have another opportunity to highlight imetelstat&#8217;s strong data profile through the two abstracts accepted for presentation at the upcoming European Hematology Association meeting. We look forward to achieving top-line results from our IMerge Phase 3 study and the promising path ahead for imetelstat.&#8221;</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Dr. Scarlett concluded, &#8220;We are excited about the progress we are making to bring this important drug to patients. We are planning for Geron to become a commercial company in 2023 with the potential launch of imetelstat in lower risk MDS. The markets for both lower risk MDS and refractory MF are highly attractive. We continue to make preparations and manage our cash appropriately to support the future buildout of our manufacturing and commercial infrastructure.&#8221;</FONT></P>

<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>Company Highlights and Upcoming Data Presentations</FONT></B></P>

<P style="TEXT-ALIGN: left"><U><FONT size=2 face=Arial>Ongoing IMerge Phase 3 Clinical Trial in Myelodysplastic Syndromes (MDS)</FONT></U></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Screening and enrollment for IMerge Phase 3 in MDS continued to progress in the first quarter. In early December 2020, the Company had completed 50% of the planned patient enrollment in IMerge Phase 3. As of the end of April 2021, enrollment has increased to 75%. The Company continues to expect the trial to be fully enrolled in the second half of 2021. Depending on the timing of full enrollment, the Company expects top-line results from IMerge Phase 3 to be available during the time period from the end of 2022 to the first half of 2023.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>For further information about IMerge Phase 3, including enrollment criteria, locations, and current status, please visit ClinicalTrials.gov/NCT02598661.</FONT></P>

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<P style="TEXT-ALIGN: left"><U><FONT size=2 face=Arial>Ongoing IMpactMF Phase 3 Clinical Trial in Refractory Myelofibrosis (MF)</FONT></U></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>On April 13, the Company announced that the first patient had been dosed in IMpactMF, the only Phase 3 clinical trial in MF with overall survival (OS) as a primary endpoint evaluating imetelstat, a first-in-class telomerase inhibitor. The Company plans to engage over 180 sites to participate in IMpactMF across North America, South America, Europe, Australia, and Asia. The Company continues to expect the interim analysis to occur in 2024 and the final analysis in 2025.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>For further information about IMpactMF, including enrollment criteria, locations, and current status, please visit ClinicalTrials.gov/NCT04576156.</FONT></P>

<P style="TEXT-ALIGN: left"><U><FONT size=2 face=Arial>Upcoming Data Presentations</FONT></U></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Two abstracts reporting new clinical data and analyses from the Phase 2 trials of imetelstat in lower risk MDS and refractory MF have been accepted for presentation at the European Hematology Association (EHA) Annual Congress meeting to be held virtually from June 9 &#8211; 17, 2021. Both of the abstracts will be published on May 12, 2021 at 16:00 CEST on ehaweb.org.</FONT></P>

<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>First Quarter 2021 Results</FONT></B></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>For the first quarter of 2021, the Company reported a net loss of $27.8 million, or $0.09 per share, compared to $16.4 million, or $0.08 per share, for the same period in 2020.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Revenues for the first quarter of 2021 were $137,000 compared to $52,000 for the same period in 2020. Royalty revenues in 2021 and 2020 primarily reflect estimated royalties from sales of cell-based research products from the Company&#8217;s divested stem cell assets. In connection with the divestiture of Geron&#8217;s human embryonic stem cell assets, including intellectual property and proprietary technology, to Lineage Cell Therapeutics, Inc. (formerly BioTime, Inc., which acquired Asterias Biotherapeutics, Inc.) in 2013, Geron is entitled to receive royalties on sales from certain research or commercial products utilizing Geron&#8217;s divested intellectual property.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Total operating expenses for the first quarter of 2021 were $28.6 million compared to $16.9 million for the same period in 2020. Research and development expenses for the first quarter of 2021 were $21.1 million compared to $10.8 million for the same period in 2020. The increase in research and development expenses in the first quarter of 2021 compared to the same period in 2020 primarily reflects increased clinical development costs associated with conducting two Phase 3 clinical trials, higher imetelstat manufacturing costs for producing validation batches at contract manufacturers to enable future production of imetelstat for clinical and commercial purposes and higher personnel-related costs for additional headcount. General and administrative expenses for the first quarter of 2021 were $7.5 million compared to $6.1 million for the same period in 2020. The increase in general and administrative expenses in the first quarter of 2021 compared to the same period in 2020 primarily reflects new costs in connection with pre-commercial activities, including modernizing the internal infrastructure to support a commercial launch, and higher legal costs.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Interest income for the first quarter of 2021 was $173,000 compared to $754,000 for the same period in 2020. The decrease in interest income in the first quarter of 2021 compared to the same period in 2020 primarily reflects lower yields on the Company&#8217;s reduced marketable securities portfolio.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Interest expense for the first quarter of 2021 was $743,000 and reflects the Company&#8217;s debt facility secured in September 2020 for up to $75 million. Currently, $25.0 million has been drawn down under the facility.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Net other income for the first quarter of 2021 was $1.2 million compared to net other expense of $44,000 for the same period in 2020. During the first quarter of 2021, the Company sold all of its holdings in an equity investment resulting in a net realized gain of $1.2 million, including foreign currency translation adjustments.</FONT></P>

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<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>2021 Financial Guidance Reaffirmed</FONT></B></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>For fiscal year 2021, the Company continues to expect its operating expense burn to range from $108 to $112 million, which includes costs for the two ongoing Phase 3 clinical trials; producing validation batches of imetelstat at contract manufacturers to enable future production of imetelstat for clinical and commercial purposes; and preparatory activities for regulatory filings to enable drug approval and commercial readiness.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>As of March 31, 2021, the Company had 63 employees. The Company plans to grow to a total of approximately 80 to 85 employees by year-end 2021, of which the majority will be development and manufacturing personnel.</FONT></P>

<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>Conference Call</FONT></B></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>The Company will host a conference call today, May 10, 2021 at 4:30 p.m. ET to review its first quarter financial results and provide an update on the ongoing imetelstat Phase 3 clinical trials, IMerge in MDS and IMpactMF in MF.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>A live, listen-only webcast will be available on the Company&#8217;s website at www.geron.com/investors/events. An archive of the webcast will be available on the Company&#8217;s website for 30 days.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Participants may access the conference call live via telephone by pre-registering online using the following link, </FONT><FONT size=2 face=Arial>http://www.directeventreg.com/registration/event/2456438</FONT><FONT size=2 face=Arial>. Upon registration, a phone number, Direct Event Passcode and unique Registrant ID will be sent via email. This information will be needed in order to enter the conference call. Participants are advised to pre-register at least 10 minutes prior to joining the call.</FONT></P>

<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>About Imetelstat</FONT></B></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Imetelstat is a novel, first-in-class telomerase inhibitor exclusively owned by Geron and being developed in hematologic myeloid malignancies. Data from Phase 2 clinical trials provide strong evidence that imetelstat targets telomerase to inhibit the uncontrolled proliferation of malignant stem and progenitor cells in hematologic myeloid malignancies resulting in malignant cell apoptosis and potential disease-modifying activity. Imetelstat has been granted Fast Track designation by the United States Food and Drug Administration for both the treatment of patients with non-del(5q) lower risk MDS who are refractory or resistant to an erythropoiesis-stimulating agent and for patients with Intermediate-2 or High-risk MF whose disease has relapsed after or is refractory to janus kinase (JAK) inhibitor treatment.</FONT></P>

<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>About IMerge Phase 3</FONT></B></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>IMerge Phase 3 is a double-blind, randomized, placebo-controlled Phase 3 clinical trial with registrational intent. The trial is designed to enroll approximately 170 transfusion dependent patients with Low or Intermediate-1 risk myelodysplastic syndromes (MDS), also referred to as lower risk MDS, who have relapsed after or are refractory to prior treatment with an erythropoiesis stimulating agent (ESA). The primary endpoint is the rate of red blood cell (RBC) transfusion independence (TI) for any consecutive period of eight weeks or longer, or 8-week RBC-TI rate. Key secondary endpoints include the rate of RBC-TI lasting at least 24 weeks, or 24-week RBC-TI rate, and the rate of hematologic improvement-erythroid (HI-E), defined as a reduction of at least four units of RBC transfusions over eight weeks compared with the prior RBC transfusion burden.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>IMerge Phase 3 is currently enrolling patients. For further information about IMerge Phase 3, including enrollment criteria, locations and current status, visit ClinicalTrials.gov/NCT02598661.</FONT></P>

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<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>About IMpactMF</FONT></B></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>IMpactMF is an open label, randomized, controlled Phase 3 clinical trial with registrational intent. The trial is designed to enroll approximately 320 patients with Intermediate-2 or High-risk myelofibrosis who are refractory to prior treatment with a JAK inhibitor, also referred to as refractory MF. Patients will be randomized to receive either imetelstat or best available therapy. The primary endpoint is overall survival (OS). Key secondary endpoints include symptom response, spleen response, progression free survival, complete response, partial response, clinical improvement, duration of response, safety, pharmacokinetics, and patient reported outcomes.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>IMpactMF is currently enrolling patients. For further information about IMpactMF, including enrollment criteria, locations and current status, visit ClinicalTrials.gov/NCT04576156.</FONT></P>

<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>About Geron</FONT></B></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Geron is a late-stage clinical biopharmaceutical company focused on the development and potential commercialization of a first-in-class telomerase inhibitor, imetelstat, in hematologic myeloid malignancies. The Company currently is conducting two Phase 3 clinical trials: IMerge in lower risk myelodysplastic syndromes and IMpactMF in refractory myelofibrosis. For more information about Geron, visit www.geron.com.</FONT></P>

<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>Use of Forward-Looking Statements</FONT></B></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Except for the historical information contained herein, this press release contains forward-looking statements made pursuant to the &#8220;safe harbor&#8221; provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that such statements, include, without limitation, those regarding: (i) that Geron&#8217;s two Phase 3 trials have registrational intent; (ii) that imetelstat has shown strong evidence of disease-modifying activity, meaning that imetelstat has the potential to demonstrate disease-modifying activity in patients; (iii) that Geron plans to engage over 180 sites for IMpactMF; (iv) that Geron plans to become a commercial company in 2023 with the potential launch of imetelstat in lower risk MDS; (v) that Geron expects IMerge Phase 3 to be fully enrolled in the second half of 2021; (vi) that Geron expects top-line results for IMerge Phase 3 to be available during the time period from the end of 2022 to the first half of 2023; (vii) that under current planning assumptions for IMpactMF, Geron expects to conduct an interim analysis in 2024 and a final analysis in 2025; (viii) that Geron&#8217;s 2021 operating expense burn will range from $108 to $112 million; (ix) that Geron expects to grow to 80-85 employees in 2021; and (x) other statements that are not historical facts, constitute forward-looking statements. These forward-looking statements involve risks and uncertainties that can cause actual results to differ materially from those in such forward-looking statements. These risks and uncertainties, include, without limitation, risks and uncertainties related to: (a) whether the current or evolving effects of the COVID-19 pandemic and resulting global economic and financial disruptions will materially and adversely impact Geron&#8217;s business and business prospects, its financial condition and the future of imetelstat; (b) whether Geron overcomes all of the potential delays and other adverse impacts caused by the current or evolving effects of the COVID-19 pandemic, and overcomes all the enrollment, clinical, safety, efficacy, technical, scientific, intellectual property, manufacturing and regulatory challenges in order to meet the expected timelines and planned milestones in (iii), (iv), (v), (vi) and (vii) above; (c) whether regulatory authorities permit the further development of imetelstat on a timely basis, or at all, without any clinical holds; (d) whether imetelstat is demonstrated to be safe and efficacious in IMerge Phase 3 and IMpactMF to enable regulatory approval; (e) whether any future efficacy or safety results may cause the benefit-risk profile of imetelstat to become unacceptable; (f) whether imetelstat actually demonstrates disease-modifying activity in patients; (g) that Geron will need to raise substantial capital in order to complete the development and commercialization of imetelstat, including to meet all of the expected timelines and planned milestones in (iii), (iv), (v), (vi) and (vii) above; (h) whether regulatory authorities require an additional clinical trial for approval even if IMerge Phase 3 or IMpactMF meet their respective primary endpoint(s); (i) whether there are failures or delays in manufacturing or supplying sufficient quantities of imetelstat or other clinical trial materials in a timely manner, whether due to the current or evolving effects of the COVID-19 pandemic or otherwise; (j) whether imetelstat is able to maintain patent protection and have freedom to operate; (k) whether there are cost overruns in 2021 due to the current or evolving effects of the COVID-19 pandemic or otherwise; (l) whether Geron can accurately project the timing of, or attain complete enrollment in IMerge Phase 3 or IMpactMF, whether due to the current or evolving effects of the COVID-19 pandemic or otherwise; and (m) whether Geron is able to enroll IMerge Phase 3 and IMpactMF at a pace that would enable meeting the timelines in (iv), (v), (vi) and (vii) above. Additional information on the above risks and uncertainties and additional risks, uncertainties and factors that could cause actual results to differ materially from those in the forward-looking statements are contained in Geron&#8217;s filings and periodic reports filed with the Securities and Exchange Commission under the heading &#8220;Risk Factors&#8221; and elsewhere in such filings and reports, including Geron&#8217;s quarterly report on Form 10-Q for the quarter ended March 31, 2021 and future filings and reports by Geron. Undue reliance should not be placed on forward-looking statements, which speak only as of the date they are made, and the facts and assumptions underlying the forward-looking statements may change. Except as required by law, Geron disclaims any obligation to update these forward-looking statements to reflect future information, events or circumstances.</FONT></P>

<P style="TEXT-ALIGN: left"><FONT size=2 face=Arial>Financial table follows.</FONT></P>

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<P style="TEXT-ALIGN: center"><B><FONT size=2 face=Arial>GERON CORPORATION<BR></FONT></B><B><FONT size=2 face=Arial>CONDENSED STATEMENTS OF OPERATIONS</FONT></B></P>

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   <TD COLSPAN="7" STYLE="white-space: nowrap; text-align: center"><B><FONT size=2 face=Arial>UNAUDITED</FONT></B></TD></TR>

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   <TD COLSPAN="7" STYLE="white-space: nowrap; text-align: center"><B><FONT size=2 style="border-bottom:1pt solid black" face=Arial>Three Months Ended March 31,</FONT></B></TD></TR>

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   <TD STYLE="white-space: nowrap; text-align: left"><I><FONT size=2 face=Arial>(In thousands, except share and per share data)</FONT></I></TD>

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   <TD COLSPAN="3" STYLE="white-space: nowrap; text-align: center"><B><FONT size=2 style="border-bottom:1pt solid black" face=Arial>2021</FONT></B></TD>

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   <TD COLSPAN="3" STYLE="white-space: nowrap; text-align: center"><B><FONT size=2 style="border-bottom:1pt solid black" face=Arial>2020</FONT></B></TD></TR>


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   <TD STYLE="width: 92%; white-space: nowrap; text-align: left"><FONT size=2 face=Arial>Revenues:</FONT></TD>

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   <TD STYLE="white-space: nowrap; text-align: left; padding-left: 15pt"><FONT size=2 face=Arial>License fees and royalties</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>$&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>137</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>$&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>52</FONT></TD>

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   <TD STYLE="white-space: nowrap; text-align: left">&nbsp;</TD>

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   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>Operating expenses:</FONT></TD>

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   <TD STYLE="white-space: nowrap; text-align: left; padding-left: 15pt"><FONT size=2 face=Arial>Research and development</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>21,113</FONT></TD>

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   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>10,802</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="white-space: nowrap; text-align: left; padding-left: 15pt"><FONT size=2 face=Arial>General and administrative</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>7,478</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>6,120</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD STYLE="white-space: nowrap; text-align: left; padding-left: 30pt"><FONT size=2 face=Arial>Total operating expenses</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>28,591</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>16,922</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>Loss from operations</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(28,454</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(16,870</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="white-space: nowrap; text-align: left">&nbsp;</TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>Interest income</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>173</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>754</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>Interest expense</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(743</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>&#8212;</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>Change in fair value of equity investment</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>&#8212;</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(195</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>Other income and expense, net</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>1,200</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 1pt solid; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(44</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>Net loss</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: left"><FONT size=2 face=Arial>$</FONT></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(27,824</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: left"><FONT size=2 face=Arial>$</FONT></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(16,355</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD STYLE="white-space: nowrap; text-align: left">&nbsp;</TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="white-space: nowrap; text-align: left"><B><FONT size=2 face=Arial>Basic and diluted net loss per share:</FONT></B></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD STYLE="white-space: nowrap; text-align: left; padding-left: 15pt"><FONT size=2 face=Arial>Net loss per share</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: left"><FONT size=2 face=Arial>$</FONT></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(0.09</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: left"><FONT size=2 face=Arial>$</FONT></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>(0.08</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"><FONT size=2 face=Arial>)</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="white-space: nowrap; text-align: left; padding-left: 15pt"><FONT size=2 face=Arial>Shares used in computing net loss per share</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 2pt double; text-align: right"><FONT size=2 face=Arial>323,638,696</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: left"></TD>

   <TD STYLE="border-bottom: Black 2pt double; white-space: nowrap; text-align: right"><FONT size=2 face=Arial>200,222,092</FONT></TD>

   <TD STYLE="white-space: nowrap; text-align: left"></TD></TR></TABLE></DIV>


<P style="TEXT-ALIGN: center"><B><FONT size=2 face=Arial>CONDENSED BALANCE SHEETS</FONT></B></P>

<DIV align=center>

<TABLE style="LINE-HEIGHT: 14pt; BORDER-COLLAPSE: COLLAPSE" cellSpacing=0 cellPadding=0 width="90%" border=0>



<TR vAlign=bottom>

   <TD width="94%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="2%" colSpan=2 noWrap align=center><B><FONT size=2 face=Arial>March 31,</FONT></B></TD>

   <TD width="1%" noWrap align=center></TD>

   <TD width="2%" colSpan=2 noWrap align=center><B><FONT size=2 face=Arial>December 31,</FONT></B></TD></TR>

<TR vAlign=bottom>

   <TD width="94%" noWrap align=left><I><FONT size=2 face=Arial>(In thousands)</FONT></I></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="2%" colSpan=2 noWrap align=center><B><FONT size=2 style="border-bottom:1pt solid black" face=Arial>2021</FONT></B></TD>

   <TD width="1%" noWrap align=center></TD>

   <TD width="2%" colSpan=2 noWrap align=center><B><FONT size=2 style="border-bottom:1pt solid black" face=Arial>2020</FONT></B></TD></TR>

<TR vAlign=bottom>

   <TD width="94%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="2%" colSpan=2 noWrap align=center><B><FONT size=2 face=Arial>(Unaudited)</FONT></B></TD>

   <TD width="1%" noWrap align=center></TD>

   <TD width="2%" colSpan=2 noWrap align=center><B><FONT size=2 face=Arial>(Note 1)</FONT></B></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD width="94%" noWrap align=left><FONT size=2 face=Arial>Current assets:</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD STYLE="width: 94%; white-space: nowrap; text-align: left; padding-left: 15pt"><FONT size=2 face=Arial>Cash, cash equivalents and restricted cash</FONT></TD>

   <TD width="1%" noWrap align=left>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

   <TD width="1%" noWrap align=left><FONT size=2 face=Arial>$&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>31,900</FONT></TD>

   <TD width="1%" noWrap align=right>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>

   <TD width="1%" noWrap align=left><FONT size=2 face=Arial>$&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>10,288</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="width: 94%; white-space: nowrap; text-align: left; padding-left: 15pt"><FONT size=2 face=Arial>Current marketable securities</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>179,490</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>186,350</FONT></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD STYLE="width: 94%; white-space: nowrap; text-align: left; padding-left: 15pt"><FONT size=2 face=Arial>Other current assets</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 1pt solid"></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 1pt solid"><FONT size=2 face=Arial>3,874</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 1pt solid"></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 1pt solid"><FONT size=2 face=Arial>3,219</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD STYLE="width: 94%; white-space: nowrap; text-align: left; padding-left: 30pt"><FONT size=2 face=Arial>Total current assets</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>215,264</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>199,857</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD width="94%" noWrap align=left>&nbsp;</TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD width="94%" noWrap align=left><FONT size=2 face=Arial>Noncurrent marketable securities</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>33,289</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>63,387</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD width="94%" noWrap align=left><FONT size=2 face=Arial>Property and equipment, net</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>620</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>658</FONT></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD width="94%" noWrap align=left><FONT size=2 face=Arial>Deposits and other assets</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 1pt solid"></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 1pt solid"><FONT size=2 face=Arial>9,435</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 1pt solid"></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 1pt solid"><FONT size=2 face=Arial>6,826</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD width="94%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 2pt double"><FONT size=2 face=Arial>$</FONT></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 2pt double"><FONT size=2 face=Arial>258,608</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 2pt double"><FONT size=2 face=Arial>$</FONT></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 2pt double"><FONT size=2 face=Arial>270,728</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD width="94%" noWrap align=left>&nbsp;</TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD width="94%" noWrap align=left><FONT size=2 face=Arial>Current liabilities</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left><FONT size=2 face=Arial>$</FONT></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>28,552</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=left><FONT size=2 face=Arial>$</FONT></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>30,940</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD width="94%" noWrap align=left><FONT size=2 face=Arial>Noncurrent liabilities</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>28,894</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD width="1%" noWrap align=right><FONT size=2 face=Arial>28,841</FONT></TD></TR>

<TR STYLE="vertical-align: bottom">

   <TD width="94%" noWrap align=left><FONT size=2 face=Arial>Stockholders&#8217; equity</FONT></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 1pt solid"></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 1pt solid"><FONT size=2 face=Arial>201,162</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 1pt solid"></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 1pt solid"><FONT size=2 face=Arial>210,947</FONT></TD></TR>

<TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">

   <TD width="94%" noWrap align=left></TD>

   <TD width="1%" noWrap align=left></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 2pt double"><FONT size=2 face=Arial>$</FONT></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 2pt double"><FONT size=2 face=Arial>258,608</FONT></TD>

   <TD width="1%" noWrap align=right></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: left; border-bottom: Black 2pt double"><FONT size=2 face=Arial>$</FONT></TD>

   <TD STYLE="width: 1%; white-space: nowrap; text-align: right; border-bottom: Black 2pt double"><FONT size=2 face=Arial>270,728</FONT></TD></TR></TABLE></DIV><BR>


<TABLE style="LINE-HEIGHT: normal; BORDER-COLLAPSE: COLLAPSE" cellSpacing=0 cellPadding=0 width="100%" border=0>



<TR vAlign=bottom>

   <TD WIDTH="1%" NOWRAP STYLE="text-align: left; vertical-align: top"><B><FONT size=2 face=Arial>Note 1</FONT></B><FONT size=2 face=Arial>:&nbsp;</FONT></TD>

   <TD WIDTH="99%" STYLE="text-align: left; vertical-align: top"><FONT size=2 face=Arial>Derived from audited financial statements included in the Company&#8217;s annual report on Form 10-K for the year ended December 31, 2020.</FONT></TD></TR></TABLE>


<P style="TEXT-ALIGN: left"><B><FONT size=2 face=Arial>CONTACT:<BR></FONT></B><FONT size=2 face=Arial>Olivia Bloom<BR></FONT><FONT size=2 face=Arial>Chief Financial Officer<BR>
investor@geron.com<BR>media@geron.com</FONT></P>

<P style="TEXT-ALIGN: center"><FONT size=2 face=Arial>###</FONT></P>

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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>gern-20210510_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentRegistrationStatement" xlink:to="dei_DocumentRegistrationStatement_lbl" xlink:type="arc" />
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAnnualReport" xlink:to="dei_DocumentAnnualReport_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAnnualReport_lbl" xml:lang="en-US">Document Annual Report</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentQuarterlyReport" xlink:label="dei_DocumentQuarterlyReport" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentQuarterlyReport" xlink:to="dei_DocumentQuarterlyReport_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentQuarterlyReport_lbl" xml:lang="en-US">Document Quarterly Report</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentTransitionReport" xlink:to="dei_DocumentTransitionReport_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentTransitionReport_lbl" xml:lang="en-US">Document Transition Report</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentShellCompanyReport" xlink:label="dei_DocumentShellCompanyReport" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentShellCompanyReport" xlink:to="dei_DocumentShellCompanyReport_lbl" xlink:type="arc" />
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentShellCompanyEventDate" xlink:label="dei_DocumentShellCompanyEventDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentShellCompanyEventDate" xlink:to="dei_DocumentShellCompanyEventDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentShellCompanyEventDate_lbl" xml:lang="en-US">Document Shell Company Event Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentPeriodStartDate" xlink:label="dei_DocumentPeriodStartDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodStartDate" xlink:to="dei_DocumentPeriodStartDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodStartDate_lbl" xml:lang="en-US">Document Period Start Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentPeriodEndDate" xlink:label="dei_DocumentPeriodEndDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US">Document Period End Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US">Document Fiscal Period Focus</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US">Document Fiscal Year Focus</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US">Current Fiscal Year End Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFileNumber" xlink:label="dei_EntityFileNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFileNumber_lbl" xml:lang="en-US">Entity File Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityRegistrantName" xlink:label="dei_EntityRegistrantName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityRegistrantName_lbl" xml:lang="en-US">Entity Registrant Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCentralIndexKey_lbl" xml:lang="en-US">Entity Central Index Key</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityPrimarySicNumber" xlink:label="dei_EntityPrimarySicNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityPrimarySicNumber" xlink:to="dei_EntityPrimarySicNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityPrimarySicNumber_lbl" xml:lang="en-US">Entity Primary SIC Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityTaxIdentificationNumber" xlink:label="dei_EntityTaxIdentificationNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityTaxIdentificationNumber" xlink:to="dei_EntityTaxIdentificationNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xml:lang="en-US">Entity Tax Identification Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="dei_EntityIncorporationStateCountryCode" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine1" xlink:label="dei_EntityAddressAddressLine1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine1_lbl" xml:lang="en-US">Entity Address, Address Line One</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine2" xlink:label="dei_EntityAddressAddressLine2" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine2" xlink:to="dei_EntityAddressAddressLine2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine2_lbl" xml:lang="en-US">Entity Address, Address Line Two</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine3" xlink:label="dei_EntityAddressAddressLine3" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine3" xlink:to="dei_EntityAddressAddressLine3_lbl" xlink:type="arc" />
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown" xlink:label="dei_EntityAddressCityOrTown" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressCityOrTown_lbl" xml:lang="en-US">Entity Address, City or Town</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince" xlink:label="dei_EntityAddressStateOrProvince" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressStateOrProvince_lbl" xml:lang="en-US">Entity Address, State or Province</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCountry" xlink:label="dei_EntityAddressCountry" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCountry" xlink:to="dei_EntityAddressCountry_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressCountry_lbl" xml:lang="en-US">Entity Address, Country</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode" xlink:label="dei_EntityAddressPostalZipCode" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressPostalZipCode_lbl" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CountryRegion" xlink:label="dei_CountryRegion" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CountryRegion" xlink:to="dei_CountryRegion_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CountryRegion_lbl" xml:lang="en-US">Country Region</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode" xlink:label="dei_CityAreaCode" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CityAreaCode_lbl" xml:lang="en-US">City Area Code</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LocalPhoneNumber" xlink:label="dei_LocalPhoneNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LocalPhoneNumber_lbl" xml:lang="en-US">Local Phone Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Extension" xlink:label="dei_Extension" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Extension" xlink:to="dei_Extension_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Extension_lbl" xml:lang="en-US">Extension</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_WrittenCommunications" xlink:to="dei_WrittenCommunications_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_WrittenCommunications_lbl" xml:lang="en-US">Written Communications</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SolicitingMaterial" xlink:label="dei_SolicitingMaterial" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SolicitingMaterial" xlink:to="dei_SolicitingMaterial_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SolicitingMaterial_lbl" xml:lang="en-US">Soliciting Material</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementTenderOffer" xlink:label="dei_PreCommencementTenderOffer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementTenderOffer" xlink:to="dei_PreCommencementTenderOffer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_PreCommencementTenderOffer_lbl" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="dei_PreCommencementIssuerTenderOffer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementIssuerTenderOffer" xlink:to="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12bTitle" xlink:label="dei_Security12bTitle" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Security12bTitle_lbl" xml:lang="en-US">Title of 12(b) Security</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_NoTradingSymbolFlag" xlink:label="dei_NoTradingSymbolFlag" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_NoTradingSymbolFlag" xlink:to="dei_NoTradingSymbolFlag_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_NoTradingSymbolFlag_lbl" xml:lang="en-US">No Trading Symbol Flag</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_TradingSymbol" xlink:label="dei_TradingSymbol" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US">Trading Symbol</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityExchangeName" xlink:label="dei_SecurityExchangeName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SecurityExchangeName_lbl" xml:lang="en-US">Security Exchange Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12gTitle" xlink:label="dei_Security12gTitle" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12gTitle" xlink:to="dei_Security12gTitle_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Security12gTitle_lbl" xml:lang="en-US">Title of 12(g) Security</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityReportingObligation" xlink:label="dei_SecurityReportingObligation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityReportingObligation" xlink:to="dei_SecurityReportingObligation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SecurityReportingObligation_lbl" xml:lang="en-US">Security Reporting Obligation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_AnnualInformationForm" xlink:label="dei_AnnualInformationForm" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AnnualInformationForm" xlink:to="dei_AnnualInformationForm_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AnnualInformationForm_lbl" xml:lang="en-US">Annual Information Form</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_AuditedAnnualFinancialStatements" xlink:label="dei_AuditedAnnualFinancialStatements" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditedAnnualFinancialStatements" xlink:to="dei_AuditedAnnualFinancialStatements_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditedAnnualFinancialStatements_lbl" xml:lang="en-US">Audited Annual Financial Statements</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="dei_EntityWellKnownSeasonedIssuer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityWellKnownSeasonedIssuer" xlink:to="dei_EntityWellKnownSeasonedIssuer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityVoluntaryFilers" xlink:label="dei_EntityVoluntaryFilers" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityVoluntaryFilers" xlink:to="dei_EntityVoluntaryFilers_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityVoluntaryFilers_lbl" xml:lang="en-US">Entity Voluntary Filers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US">Entity Current Reporting Status</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityInteractiveDataCurrent" xlink:label="dei_EntityInteractiveDataCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US">Entity Interactive Data Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFilerCategory_lbl" xml:lang="en-US">Entity Filer Category</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntitySmallBusiness" xlink:label="dei_EntitySmallBusiness" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntitySmallBusiness_lbl" xml:lang="en-US">Entity Small Business</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US">Entity Emerging Growth Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityExTransitionPeriod" xlink:label="dei_EntityExTransitionPeriod" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityExTransitionPeriod" xlink:to="dei_EntityExTransitionPeriod_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityExTransitionPeriod_lbl" xml:lang="en-US">Elected Not To Use the Extended Transition Period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentAccountingStandard" xlink:label="dei_DocumentAccountingStandard" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAccountingStandard" xlink:to="dei_DocumentAccountingStandard_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAccountingStandard_lbl" xml:lang="en-US">Document Accounting Standard</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_OtherReportingStandardItemNumber" xlink:label="dei_OtherReportingStandardItemNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_OtherReportingStandardItemNumber" xlink:to="dei_OtherReportingStandardItemNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_OtherReportingStandardItemNumber_lbl" xml:lang="en-US">Other Reporting Standard Item Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityShellCompany" xlink:label="dei_EntityShellCompany" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityShellCompany" xlink:to="dei_EntityShellCompany_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityShellCompany_lbl" xml:lang="en-US">Entity Shell Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityPublicFloat" xlink:label="dei_EntityPublicFloat" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityPublicFloat" xlink:to="dei_EntityPublicFloat_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityPublicFloat_lbl" xml:lang="en-US">Entity Public Float</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityBankruptcyProceedingsReportingCurrent" xlink:label="dei_EntityBankruptcyProceedingsReportingCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityBankruptcyProceedingsReportingCurrent" xlink:to="dei_EntityBankruptcyProceedingsReportingCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityBankruptcyProceedingsReportingCurrent_lbl" xml:lang="en-US">Entity Bankruptcy Proceedings, Reporting Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="dei_EntityCommonStockSharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentsIncorporatedByReferenceTextBlock" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentsIncorporatedByReferenceTextBlock" xlink:to="dei_DocumentsIncorporatedByReferenceTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock_lbl" xml:lang="en-US">Documents Incorporated by Reference [Text Block]</link:label>
    </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>7
<FILENAME>geron3907701-8k_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2021"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="gern-20210510.xsd" xlink:type="simple"/>
    <context id="From2021-05-09to2021-05-10">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000886744</identifier>
        </entity>
        <period>
            <startDate>2021-05-09</startDate>
            <endDate>2021-05-10</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Shares">
        <measure>shares</measure>
    </unit>
    <unit id="USDPShares">
        <divide>
            <unitNumerator>
                <measure>iso4217:USD</measure>
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            <unitDenominator>
                <measure>shares</measure>
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    </unit>
    <dei:EntityCentralIndexKey contextRef="From2021-05-09to2021-05-10">0000886744</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="From2021-05-09to2021-05-10">false</dei:AmendmentFlag>
    <dei:DocumentType contextRef="From2021-05-09to2021-05-10">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="From2021-05-09to2021-05-10">2021-05-10</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="From2021-05-09to2021-05-10">GERON CORPORATION</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="From2021-05-09to2021-05-10">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="From2021-05-09to2021-05-10">000-20859</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="From2021-05-09to2021-05-10">75-2287752</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="From2021-05-09to2021-05-10">919 E. HILLSDALE BLVD.</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2 contextRef="From2021-05-09to2021-05-10">SUITE 250</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown contextRef="From2021-05-09to2021-05-10">FOSTER CITY</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="From2021-05-09to2021-05-10">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="From2021-05-09to2021-05-10">94404</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="From2021-05-09to2021-05-10">(650)</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="From2021-05-09to2021-05-10">473-7700</dei:LocalPhoneNumber>
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    <dei:SolicitingMaterial contextRef="From2021-05-09to2021-05-10">false</dei:SolicitingMaterial>
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    <dei:TradingSymbol contextRef="From2021-05-09to2021-05-10">GERN</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="From2021-05-09to2021-05-10">NASDAQ</dei:SecurityExchangeName>
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</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm140220910726088">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover<br></strong></div></th>
<th class="th"><div>May 10, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_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="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">May 10,  2021<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">000-20859<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">GERON CORPORATION<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000886744<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">75-2287752<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">919 E. HILLSDALE BLVD.<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Address Line Two</a></td>
<td class="text">SUITE 250<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">FOSTER CITY<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">CA<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">94404<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">(650)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">473-7700<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_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="top.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="top.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="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</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="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock, $0.001 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="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">GERN<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</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_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</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_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CoverAbstract</td>
</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:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<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:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 2 such as Street or Suite number</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the 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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the 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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the 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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_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>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the 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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
