<SEC-DOCUMENT>0001104659-21-057859.txt : 20210429
<SEC-HEADER>0001104659-21-057859.hdr.sgml : 20210429
<ACCEPTANCE-DATETIME>20210429183559
ACCESSION NUMBER:		0001104659-21-057859
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210429
FILED AS OF DATE:		20210429
DATE AS OF CHANGE:		20210429

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HBM Healthcare Investments (Cayman) Ltd.
		CENTRAL INDEX KEY:			0001232258
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40366
		FILM NUMBER:		21872780

	BUSINESS ADDRESS:	
		STREET 1:		2454 WEST BAY ROAD, 3RD FLOOR
		CITY:			GRAND CAYMAN
		STATE:			E9
		ZIP:			00000
		BUSINESS PHONE:		1 345 946 8002

	MAIL ADDRESS:	
		STREET 1:		P.O BOX 30852
		CITY:			GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-1204

	FORMER NAME:	
		FORMER CONFORMED NAME:	HBM BIOVENTURES CAYMAN LTD
		DATE OF NAME CHANGE:	20030512

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Werewolf Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001785530
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				823523180
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1030 MASSACHUSETTS AVENUE
		STREET 2:		SUITE 210
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138
		BUSINESS PHONE:		617-952-0555

	MAIL ADDRESS:	
		STREET 1:		1030 MASSACHUSETTS AVENUE
		STREET 2:		SUITE 210
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>tm2114580-1_3seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-04-29</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001785530</issuerCik>
        <issuerName>Werewolf Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>HOWL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001232258</rptOwnerCik>
            <rptOwnerName>HBM Healthcare Investments (Cayman) Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>GOVERNORS SQUARE, SUITE #4-212-2</rptOwnerStreet1>
            <rptOwnerStreet2>23 LIME TREE BAY AVE., WEST BAY</rptOwnerStreet2>
            <rptOwnerCity>GRAND CAYMAN</rptOwnerCity>
            <rptOwnerState>E9</rptOwnerState>
            <rptOwnerZipCode>00000</rptOwnerZipCode>
            <rptOwnerStateDescription>CAYMAN ISLANDS</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series B Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>625995</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Series B Preferred Stock is convertible into common stock on a 8.6691-for-1 basis into the number of shares of common stock shown in Column 3 without payment of further consideration at the holder's election or upon closing of the initial public offering of the Issuer's common stock. The shares have no expiration date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Jean-Marc LeSieur, Managing Director</signatureName>
        <signatureDate>2021-04-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
