<SEC-DOCUMENT>0001193125-26-292640.txt : 20260701
<SEC-HEADER>0001193125-26-292640.hdr.sgml : 20260701
<ACCEPTANCE-DATETIME>20260701163015
ACCESSION NUMBER:		0001193125-26-292640
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260629
FILED AS OF DATE:		20260701
DATE AS OF CHANGE:		20260701

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Celebi Breanna Maurine
		CENTRAL INDEX KEY:			0002137903
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40708
		FILM NUMBER:		261145656

	MAIL ADDRESS:	
		STREET 1:		C/O RA CAPITAL MANAGEMENT, L.P.
		STREET 2:		200 BERKELEY STREET, 18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Climb Bio, Inc.
		CENTRAL INDEX KEY:			0001768446
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				832273741
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		20 WILLIAM STREET
		STREET 2:		SUITE 145
		CITY:			WELLESLEY HILLS
		STATE:			MA
		ZIP:			02481
		BUSINESS PHONE:		1-866-857-2596

	MAIL ADDRESS:	
		STREET 1:		20 WILLIAM STREET
		STREET 2:		SUITE 145
		CITY:			WELLESLEY HILLS
		STATE:			MA
		ZIP:			02481

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Eliem Therapeutics, Inc.
		DATE OF NAME CHANGE:	20190219
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-06-29</periodOfReport>

    <issuer>
        <issuerCik>0001768446</issuerCik>
        <issuerName>Climb Bio, Inc.</issuerName>
        <issuerTradingSymbol>CLYM</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002137903</rptOwnerCik>
            <rptOwnerName>Celebi Breanna Maurine</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O CLIMB BIO, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>20 WILLIAM STREET, SUITE 145</rptOwnerStreet2>
            <rptOwnerCity>WELLESLEY HILLS</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02481</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>13.36</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-06-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>70284</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2036-06-29</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>70284</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>70284</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The shares underlying the option vest in equal monthly installments from June 29, 2026 (the &quot;Vesting Commencement Date&quot;) until the third anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service through such date.</footnote>
        <footnote id="F2">Under the Reporting Person's arrangement with RA Capital Management, L.P. (the &quot;Adviser&quot;), the Reporting Person holds the stock option for the benefit of the RA Capital Healthcare Fund, L.P. (the &quot;Fund&quot;), RA Capital Nexus Fund, L.P. (the &quot;Nexus Fund&quot;), RA Capital Nexus Fund II, L.P. (the &quot;Nexus Fund II&quot;), RA Capital Nexus Fund III, L.P. (the &quot;Nexus Fund III&quot;), and a separately managed account (the &quot;Account&quot;). The Reporting Person is obligated to turn over to the Adviser any net cash or stock received upon exercise of the stock option, which will offset advisory fees owed by the Fund, the Nexus Fund, the Nexus Fund II, the Nexus Fund III, and the Account to the Adviser. The Reporting Person therefore disclaims beneficial ownership of the stock option and underlying common stock.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Chandra Adams, as Attorney-in-Fact</signatureName>
        <signatureDate>2026-07-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
