<SEC-DOCUMENT>0001104659-21-024220.txt : 20210216
<SEC-HEADER>0001104659-21-024220.hdr.sgml : 20210216
<ACCEPTANCE-DATETIME>20210216163935
ACCESSION NUMBER:		0001104659-21-024220
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210216
DATE AS OF CHANGE:		20210216
GROUP MEMBERS:		PETER KOLCHINSKY
GROUP MEMBERS:		RA CAPITAL HEALTHCARE FUND, L.P.
GROUP MEMBERS:		RAJEEV SHAH

SUBJECT COMPANY:	

	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:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-49251
		FILM NUMBER:		21639665

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RA CAPITAL MANAGEMENT, L.P.
		CENTRAL INDEX KEY:			0001346824
		IRS NUMBER:				830406777
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		200 BERKELEY STREET, 18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-778-2500

	MAIL ADDRESS:	
		STREET 1:		200 BERKELEY STREET, 18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RA CAPITAL MANAGEMENT, LLC
		DATE OF NAME CHANGE:	20051213
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>tm216584d11_sc13g.htm
<DESCRIPTION>SC 13G
<TEXT>
<HTML>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0; margin-bottom: 0; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WASHINGTON, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B></B></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 0 auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13G</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Under the Securities Exchange Act of
1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(Amendment No. )*</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: center"><FONT STYLE="font-size: 14pt"><U>GERON
CORPORATION</U></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: center">(Name of Issuer)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: center"><U>Common Stock, $0.001 par value per
share</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Title of Class of Securities)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><U>374163103</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(CUSIP Number)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: center">___________<U>December 31, 2020</U>__________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: center">(Date of Event Which Requires Filing
of this Statement)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: justify">Check
the appropriate box to designate the rule pursuant to which this Schedule is filed:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#120;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Rule 13d-1(b)</FONT></TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Rule 13d-1(c)</FONT></TD>
</TR></TABLE>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Rule 13d-1(d)</FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: left">*The
remainder of this cover page shall be filled out for a reporting person&rsquo;s initial filing on this form with respect to the
subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided
in a prior cover page.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0in; text-indent: 0in; text-align: left">The
information required in the remainder of this cover page shall not be deemed to be &ldquo;filed&rdquo; for the purpose of Section&nbsp;18
of the Securities Exchange Act of 1934 (&ldquo;Act&rdquo;) or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the Notes).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: justify"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0; margin-bottom: 0; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 1pt solid; border-bottom: Black 2pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: justify"></P>

<!-- Field: Page; Sequence: 1 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.5in; text-align: justify"></P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No. 374163103</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><BR STYLE="clear: both">
<B>1</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 95%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NAMES OF REPORTING PERSONS</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">RA Capital Management, L.P.</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 350.1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&#168;</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 350.1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>3</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; background-color: #F2F2F2">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC USE ONLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CITIZENSHIP OR PLACE OF ORGANIZATION</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="4" STYLE="vertical-align: middle; text-align: center; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 8pt; padding-bottom: 6pt; width: 15%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">WITH:</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 80%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE VOTING POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED VOTING POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED DISPOSITIVE POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 95%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>10</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) </FONT><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>11</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">9.99%</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>12</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IA, PN</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No. 374163103</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><BR STYLE="clear: both">
<B>1</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 95%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NAMES OF REPORTING PERSONS</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Peter Kolchinsky</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 350.1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&#168;</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 350.1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>3</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; background-color: #F2F2F2">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC USE ONLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CITIZENSHIP OR PLACE OF ORGANIZATION</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United States of America</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="4" STYLE="text-align: center; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 8pt; padding-bottom: 6pt; width: 15%; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">WITH:</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 80%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE VOTING POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED VOTING POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED DISPOSITIVE POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 95%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>10</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) </FONT><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>11</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">9.99%</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>12</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IN, HC</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 3 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No. 374163103</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><BR STYLE="clear: both">
<B>1</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 95%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NAMES OF REPORTING PERSONS</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Rajeev Shah</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 350.1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&#168;</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 350.1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>3</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; background-color: #F2F2F2">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC USE ONLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CITIZENSHIP OR PLACE OF ORGANIZATION</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United States of America</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="4" STYLE="text-align: center; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 8pt; padding-bottom: 6pt; width: 15%; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">WITH:</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 80%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE VOTING POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED VOTING POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED DISPOSITIVE POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 95%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>10</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) </FONT><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>11</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">9.99%</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>12</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IN, HC</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 4 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No. 374163103</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><BR STYLE="clear: both">
<B>1</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 95%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NAMES OF REPORTING PERSONS</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">RA Capital Healthcare Fund, L.P.</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>2</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 350.1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&#168;</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 350.1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>3</B></FONT></TD>
    <TD STYLE="border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; background-color: #F2F2F2">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SEC USE ONLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>4</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CITIZENSHIP OR PLACE OF ORGANIZATION</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Delaware</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD ROWSPAN="4" STYLE="text-align: center; border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 8pt; padding-bottom: 6pt; width: 15%; vertical-align: middle">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NUMBER OF</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARES</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">BENEFICIALLY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OWNED BY</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">EACH</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">REPORTING</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">WITH:</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>5</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 80%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE VOTING POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>6</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED VOTING POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>7</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">0</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-top: 2pt; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>8</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARED DISPOSITIVE POWER</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt; width: 5%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>9</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt; width: 95%">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31,114,941</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>10</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) </FONT><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>11</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">9.99%</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-top: 2pt; padding-right: 2pt; padding-left: 2pt; text-align: center; font-size: 10pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>12</B></FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding: 2pt 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PN</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>




<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;1(a).</B></TD><TD><B><U>Name of Issuer</U>: </B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.75in">Geron Corporation (the &ldquo;Issuer&rdquo;)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;1(b).</B></TD><TD><B><U>Address of Issuer&rsquo;s Principal Executive Offices</U>: </B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in">919 East Hillsdale Boulevard, Suite 250, Foster City,
CA 94404</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 84pt; text-indent: -84pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;2(a).</B></TD><TD><B><U>Names of Persons Filing</U>:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in">The names of the persons filing this report (collectively,
the &ldquo;Reporting Persons&rdquo;) are:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">RA Capital Management, L.P. (&ldquo;RA
Capital&rdquo;)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">Peter Kolchinsky</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">Rajeev Shah</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">RA Capital Healthcare Fund, L.P.
(the &ldquo;Fund&rdquo;)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;2(b).</B></TD><TD><B><U>Address of Principal Business Office or, if None, Residence</U>: </B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">The address of the principal business
office of each of the Reporting Persons is:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">c/o RA Capital Management, L.P.,
200 Berkeley Street, 18<SUP>th</SUP> Floor, Boston MA 02116</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;2(c).</B></TD><TD><B><U>Citizenship</U>:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">RA Capital and the Fund are Delaware
limited partnerships. Dr. Kolchinsky and Mr. Shah are United States citizens.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;2(d).</B></TD><TD><B><U>Title of Class of Securities</U>:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 84pt; text-indent: -84pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">Common Stock, $0.001 par value per share (&ldquo;Common
Stock&rdquo;)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 84pt; text-indent: -84pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;2(e).</B></TD><TD><B><U>CUSIP Number</U>:</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 84pt; text-indent: -84pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">374163103</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 84pt; text-indent: -84pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;3.</B></TD><TD><B><U>If this statement is filed pursuant to &sect;&sect; 240.13d-1(b) or 240.13d-2(b) or (c), check</U></B> <B><U>whether the person filing is a:</U></B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 84pt"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 84pt; text-indent: -84pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">(e) RA Capital Management, L.P.
is a registered investment adviser and is filing this statement in accordance with &sect;240.13d-1(b)(1)(ii)(E);</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">(g) Peter Kolchinsky and Rajeev
Shah are control persons and are filing this statement in accordance with &sect;240.13d-1(b)(1)(ii)(G).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;4.</B></TD><TD><B><U>Ownership</U>.</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">The Fund directly holds (i) 30,126,299
shares of Common Stock (ii) 8,335,239 shares of the Issuer&rsquo;s Common Stock which it has the right to acquire through the exercise
of pre-funded warrants (&ldquo;Pre-Funded Warrants&rdquo;) and (iii) 19,230,769 shares of the Issuer&rsquo;s Common Stock it has
the right to acquire through the exercise of 38,461,538 purchase warrants (&ldquo;Purchase Warrants&rdquo;). The Pre-Funded Warrants
and the Purchase Warrants contain a provision (the &ldquo;Beneficial Ownership Blocker&rdquo;) which precludes exercise of the
warrants to the extent that, following exercise, the Reporting Person, together with its affiliates and other attribution parties,
would own more than 9.99% of the Common Stock Outstanding.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">The shares reported herein for
the Reporting Person represent <FONT STYLE="font-size: 10pt">(i) 30,126,299 shares of the Issuer&rsquo;s Common Stock beneficially
owned, and (ii) 988,642 shares of Common Stock that the Reporting Person has the right to acquire upon the exercise of Pre-Funded
Warrants or Purchase Warrants. As a result, the Reporting Person is currently prohibited from exercising the warrants to the extent
that exercise would result in ownership of more than 31,114,941 shares of Common Stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">The information required by this
item with respect to each Reporting Person is set forth in Rows 5 through 9 and 11 of the cover page to this Schedule 13G. The
ownership percentages reported are based on 310,472,232 outstanding shares of Common Stock, as reported in the Issuer&rsquo;s Form
10-Q filed on November 5, 2020, plus (ii) 988,642 shares of Common Stock of which the Reporting Person may acquire beneficial ownership
upon the exercise of Pre-Funded Warrants and Purchase Warrants, as limited by the Beneficial Ownership Blocker.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">RA Capital Healthcare Fund GP,
LLC is the general partner of the Fund. The general partner of RA Capital is RA Capital Management GP, LLC, of which Dr. Kolchinsky
and Mr. Shah are the controlling persons. RA Capital serves as investment adviser for the Fund and may be deemed a beneficial owner,
for purposes of Section 13(d) of the Securities Exchange Act of 1934 (the &ldquo;Act&rdquo;), of any securities of the Issuer held
by the Fund. The Fund has delegated to RA Capital the sole power to vote and the sole power to dispose of all securities held in
the Fund&rsquo;s portfolio, including the shares of the Issuer&rsquo;s Common Stock reported herein. Because the Fund has divested
voting and investment power over the reported securities it holds and may not revoke that delegation on less than 61 days&rsquo;
notice, the Fund disclaims beneficial ownership of the securities it holds for purposes of Section 13(d) of the Act. As managers
of RA Capital, Dr. Kolchinsky and Mr. Shah may be deemed beneficial owners, for purposes of Section 13(d) of the Act, of any securities
of the Issuer beneficially owned by RA Capital. RA Capital, Dr. Kolchinsky, and Mr. Shah disclaim ownership of the securities reported
in this Schedule 13G Statement (the &ldquo;Statement&rdquo;) other than for the purpose of determining their obligations under
Section 13(d) of the Act, and the filing of the Statement shall not be deemed an admission that either RA Capital, Dr. Kolchinsky,
or Mr. Shah is the beneficial owner of such securities for any other purpose.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;5.</B></TD><TD><B><U>Ownership of Five Percent or Less of a Class</U>.</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">If this statement is being filed
to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owner of more than five percent
of the class of securities, check the following <FONT STYLE="font-family: Wingdings">&uml;</FONT>.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;6.</B></TD><TD><B><U>Ownership of More than Five Percent on Behalf of Another Person</U>.</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.75in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;7.</B></TD><TD><B><U>Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding
Company or Control Person</U>.</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.75in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;8.</B></TD><TD><B><U>Identification and Classification of Members of the Group</U>.</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;9.</B></TD><TD><B><U>Notice of Dissolution of Group</U>.</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.75in">Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.75in"><B>Item&nbsp;10.</B></TD><TD><B><U>Certification</U>.</B></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: 0in">By signing below I certify that,
to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business
and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer
of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that
purpose or effect, other than activities solely in connection with a nomination under &sect; 240.14a-11.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in; text-indent: -0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><U>SIGNATURE</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">After reasonable inquiry and to the best
of its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete
and correct.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Date:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;February 16, 2021</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">RA CAPITAL MANAGEMENT, L.P.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">By:</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; font-size: 10pt">/s/ Peter Kolchinsky</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; width: 5%">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; width: 5%">Name:</TD>
    <TD STYLE="font-size: 10pt; width: 40%">Peter Kolchinsky</TD>
    <TD STYLE="width: 50%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Signatory</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">PETER KOLCHINSKY</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; font-size: 10pt">/s/ Peter Kolchinsky</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">RAJEEV SHAH</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; font-size: 10pt">/s/ Rajeev Shah</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">RA CAPITAL HEALTHCARE FUND, L.P.</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">By:</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">RA Capital Healthcare GP, LLC</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">By:</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; font-size: 10pt">/s/ Peter Kolchinsky</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Peter Kolchinsky</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Manager</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>EXHIBIT 1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">AGREEMENT</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">This Joint Filing Agreement, dated as of February 16, 2021,
is by and among RA Capital Management, L.P., Peter Kolchinsky, Rajeev Shah, and RA Capital Healthcare Fund, L.P. (the foregoing
are collectively referred to herein as the &ldquo;Filers&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Each of the Filers may be required to file with the United States
Securities and Exchange Commission a statement on Schedule 13G and/or 13D with respect to Common Stock, par value $0.001 per share
of Geron Corporation beneficially owned by them from time to time.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to and in accordance with Rule 13(d)(1)(k) promulgated
under the Securities Exchange Act of 1934, as amended, the Filers hereby agree to file a single statement on Schedule 13G and/or
13D (and any amendments thereto) on behalf of each of such parties, and hereby further agree to file this Joint Filing Agreement
as an exhibit to such statement, as required by such rule.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">This Joint Filing Agreement may be terminated by any of the
Filers upon one week&rsquo;s prior written notice or such lesser period of notice as the Filers may mutually agree.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Executed and delivered as of the date first above written.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">RA CAPITAL MANAGEMENT, L.P.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">By:</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; font-size: 10pt">/s/ Peter Kolchinsky</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt; width: 5%">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; width: 5%">Name:</TD>
    <TD STYLE="font-size: 10pt; width: 40%">Peter Kolchinsky</TD>
    <TD STYLE="width: 50%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Authorized Signatory</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">PETER KOLCHINSKY</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; font-size: 10pt">/s/ Peter Kolchinsky</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">RAJEEV SHAH</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; font-size: 10pt">/s/ Rajeev Shah</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">RA CAPITAL HEALTHCARE FUND, L.P.</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">By:</TD>
    <TD COLSPAN="2" STYLE="padding-bottom: 1pt; font-size: 10pt">RA Capital Healthcare GP, LLC</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="3" STYLE="font-size: 10pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">By:</TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; font-size: 10pt">/s/ Peter Kolchinsky</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Name:</TD>
    <TD STYLE="font-size: 10pt">Peter Kolchinsky</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt">Title:</TD>
    <TD STYLE="font-size: 10pt">Manager</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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