<SEC-DOCUMENT>0000950170-25-107981.txt : 20250813
<SEC-HEADER>0000950170-25-107981.hdr.sgml : 20250813
<ACCEPTANCE-DATETIME>20250813160011
ACCESSION NUMBER:		0000950170-25-107981
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250811
FILED AS OF DATE:		20250813
DATE AS OF CHANGE:		20250813

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bain Capital Life Sciences Fund III, L.P.
		CENTRAL INDEX KEY:			0001875273
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42790
		FILM NUMBER:		251211252

	BUSINESS ADDRESS:	
		STREET 1:		200 CLARENDON ST
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		16175162000

	MAIL ADDRESS:	
		STREET 1:		200 CLARENDON ST
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bain Capital Life Sciences Investors, LLC
		CENTRAL INDEX KEY:			0001703031
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42790
		FILM NUMBER:		251211254

	BUSINESS ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6175162878

	MAIL ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BCLS Fund III Investments, LP
		CENTRAL INDEX KEY:			0001952107
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42790
		FILM NUMBER:		251211250

	BUSINESS ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6175162000

	MAIL ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BCLS Fund III Investments GP, LLC
		CENTRAL INDEX KEY:			0001952080
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42790
		FILM NUMBER:		251211251

	BUSINESS ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6175162000

	MAIL ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bain Capital Life Sciences III General Partner, LLC
		CENTRAL INDEX KEY:			0001952106
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42790
		FILM NUMBER:		251211253

	BUSINESS ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6175162000

	MAIL ADDRESS:	
		STREET 1:		200 CLARENDON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Heartflow, Inc.
		CENTRAL INDEX KEY:			0001464521
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				260506743
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0811

	BUSINESS ADDRESS:	
		STREET 1:		331 E EVELYN AVENUE
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94041
		BUSINESS PHONE:		650-241-1221

	MAIL ADDRESS:	
		STREET 1:		331 E EVELYN AVENUE
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94041

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Cardiovascular Simulation, Inc.
		DATE OF NAME CHANGE:	20090519
</SEC-HEADER>
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<SEQUENCE>1
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    <documentType>4</documentType>

    <periodOfReport>2025-08-11</periodOfReport>

    <issuer>
        <issuerCik>0001464521</issuerCik>
        <issuerName>Heartflow, Inc.</issuerName>
        <issuerTradingSymbol>HTFL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001703031</rptOwnerCik>
            <rptOwnerName>Bain Capital Life Sciences Investors, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 CLARENDON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
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            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001952106</rptOwnerCik>
            <rptOwnerName>Bain Capital Life Sciences III General Partner, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 CLARENDON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
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            <isOther>false</isOther>
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    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001875273</rptOwnerCik>
            <rptOwnerName>Bain Capital Life Sciences Fund III, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 CLARENDON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001952080</rptOwnerCik>
            <rptOwnerName>BCLS Fund III Investments GP, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 CLARENDON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001952107</rptOwnerCik>
            <rptOwnerName>BCLS Fund III Investments, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 CLARENDON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-08-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>12014234</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12014234</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-08-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>433924</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.20</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12448158</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Series F Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-08-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>35081564</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>12014234</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Subordinated Convertible Promissory Note</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>15.20</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-08-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
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            <transactionAmounts>
                <transactionTotalValue>
                    <value>6595648.51</value>
                </transactionTotalValue>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2029-01-24</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>433924</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each share of the Issuer's Series F Preferred Stock automatically converted into shares of the Issuer's Common Stock on a 0.342466:1 basis immediately prior to the closing of the Issuer's initial public offering. These securities had no expiration date.</footnote>
        <footnote id="F2">The outstanding principal amount of the Subordinated Convertible Promissory note automatically converted into shares of the Issuer's Common Stock upon consummation of the Issuer's initial public offering at a conversion price of 80% of the price per share in the Issuer's initial public offering.</footnote>
        <footnote id="F3">Represents securities held directly by BCLS Fund III Investments, LP (&quot;BCLS Fund III Investments&quot;).</footnote>
        <footnote id="F4">Bain Capital Life Sciences Investors, LLC (&quot;BCLSI&quot;) is the manager of Bain Capital Life Sciences III General Partner, LLC (&quot;BCLS Fund III GP&quot;), which is the general partner of Bain Capital Life Sciences Fund III, L.P. (&quot;BCLS Fund III&quot;), which is the managing member of BCLS Fund III Investments GP, LLC (&quot;BCLS Fund III Investments GP&quot;), which is the general partner of BCLS Fund III Investments. As a result, each of BCLSI, BCLS Fund III GP, BCLS Fund III and BCLS Fund III Investments GP may be deemed to share voting and dispositive power with respect to the securities held by BCLS Fund III Investments. BCLSI, BCLS Fund III GP, BCLS Fund III and BCLS Fund III Investments GP each disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>See signatures included in Exhibit 99.1</signatureName>
        <signatureDate>2025-08-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>htfl-ex99_1.htm
<DESCRIPTION>EX-99.1
<TEXT>
<html>
 <head>
  <title>EX-99.1</title>
 </head>
 <body style="padding:8px;margin:auto!important;z-index:0;-webkit-text-size-adjust:100%;position:relative;">
  <div style="padding-top:0.5in;z-index:2;min-height:0.5in;position:relative;box-sizing:border-box;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;margin-left:0;margin-right:0;"><font style="white-space:pre-wrap;font-size:11pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
  <div class="main-content-container" style="z-index:5;position:relative;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><font style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">Exhibit 99.1</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><font style="white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: </font><font style="color:#000000;white-space:pre-wrap;text-decoration:underline solid;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">/s/ Andrew Hack</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">Title: Partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">BAIN CAPITAL LIFE SCIENCES III GENERAL PARTNER, LLC</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences Investors, LLC, its manager</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: </font><font style="color:#000000;white-space:pre-wrap;text-decoration:underline solid;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">/s/ Andrew Hack</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">Title: Partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">BAIN CAPITAL LIFE SCIENCES FUND III, L.P.</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences III General Partner, LLC, its general partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences Investors, LLC, its manager</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: </font><font style="color:#000000;white-space:pre-wrap;text-decoration:underline solid;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">/s/ Andrew Hack</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">Title: Partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">BCLS FUND III INVESTMENTS GP, LLC</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences Fund III, L.P., its managing member</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences III General Partner, LLC, its general partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences Investors, LLC, its manager</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: </font><font style="color:#000000;white-space:pre-wrap;text-decoration:underline solid;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">/s/ Andrew Hack</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">Title: Partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">BCLS FUND III INVESTMENTS, LP</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: BCLS Fund III Investments GP, LLC, its general partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences Fund III, L.P., its managing member</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences III General Partner, LLC, its general partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: Bain Capital Life Sciences Investors, LLC, its manager</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">By: </font><font style="color:#000000;white-space:pre-wrap;text-decoration:underline solid;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">/s/ Andrew Hack</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:8pt;font-family:'Calibri',sans-serif;font-kerning:none;min-width:fit-content;">Title: Partner</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
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