<SEC-DOCUMENT>0000093751-26-000446.txt : 20260807
<SEC-HEADER>0000093751-26-000446.hdr.sgml : 20260807
<ACCEPTANCE-DATETIME>20260807091919
ACCESSION NUMBER:		0000093751-26-000446
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20260807
DATE AS OF CHANGE:		20260807

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cullinan Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001789972
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				813879991
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91966
		FILM NUMBER:		261251751

	BUSINESS ADDRESS:	
		STREET 1:		ONE MAIN STREET
		STREET 2:		SUITE 1350
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617-410-4650

	MAIL ADDRESS:	
		STREET 1:		ONE MAIN STREET
		STREET 2:		SUITE 1350
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Cullinan Oncology, Inc.
		DATE OF NAME CHANGE:	20210225

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Cullinan Management, Inc.
		DATE OF NAME CHANGE:	20210107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Cullinan Oncology, LLC
		DATE OF NAME CHANGE:	20191001

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STATE STREET CORP
		CENTRAL INDEX KEY:			0000093751
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		EIN:				042456637
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G

	BUSINESS ADDRESS:	
		STREET 1:		1 CONGRESS STREET
		STREET 2:		SUITE 1
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02114
		BUSINESS PHONE:		617 786-3000

	MAIL ADDRESS:	
		STREET 1:		1 CONGRESS STREET
		STREET 2:		SUITE 1
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02114

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STATE STREET Corp
		DATE OF NAME CHANGE:	20090218

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STATE STREET CORP
		DATE OF NAME CHANGE:	19970424

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STATE STREET BOSTON FINANCIAL CORP
		DATE OF NAME CHANGE:	19780525
</SEC-HEADER>
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<TYPE>SCHEDULE 13G
<SEQUENCE>1
<FILENAME>primary_doc.xml
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         <securitiesClassTitle>COMMON STOCK</securitiesClassTitle>
         <eventDateRequiresFilingThisStatement>06/30/2026</eventDateRequiresFilingThisStatement>
         <issuerInfo>
            <issuerCik>0001789972</issuerCik>
            <issuerName>CULLINAN THERAPEUTICS INC</issuerName>
            <issuerCusips>
               <issuerCusipNumber>230031106</issuerCusipNumber>
            </issuerCusips>
            <issuerPrincipalExecutiveOfficeAddress>
               <com:street1>1 MAIN STREET SUITE 520</com:street1>
               <com:city>CAMBRIDGE</com:city>
               <com:stateOrCountry>MA</com:stateOrCountry>
               <com:zipCode>02142</com:zipCode>
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            <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
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         <reportingPersonName>STATE STREET CORPORATION</reportingPersonName>
         <citizenshipOrOrganization>MA</citizenshipOrOrganization>
         <reportingPersonBeneficiallyOwnedNumberOfShares>
            <soleVotingPower>0.00</soleVotingPower>
            <sharedVotingPower>3565748.00</sharedVotingPower>
            <soleDispositivePower>0.00</soleDispositivePower>
            <sharedDispositivePower>3668627.00</sharedDispositivePower>
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         <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>3668627.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
         <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
         <classPercent>6</classPercent>
         <typeOfReportingPerson>HC</typeOfReportingPerson>
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            <issuerName>CULLINAN THERAPEUTICS INC</issuerName>
            <issuerPrincipalExecutiveOfficeAddress>1 MAIN STREET SUITE 520, CAMBRIDGE, MASSACHUSETTS, 02142</issuerPrincipalExecutiveOfficeAddress>
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         <item2>
            <filingPersonName>STATE STREET CORPORATION;</filingPersonName>
            <principalBusinessOfficeOrResidenceAddress>ONE CONGRESS STREET, SUITE 1, BOSTON MA 02114, UNITED STATES</principalBusinessOfficeOrResidenceAddress>
            <citizenship>MA</citizenship>
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            <typeOfPersonFiling>IA</typeOfPersonFiling>
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            <amountBeneficiallyOwned>3668627.00</amountBeneficiallyOwned>
            <classPercent>6</classPercent>
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               <sharedPowerOrDirectToVote>3,565,748</sharedPowerOrDirectToVote>
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               <sharedPowerOrDirectToDispose>3,668,627</sharedPowerOrDirectToDispose>
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         </item4>
         <item5>
            <notApplicableFlag>Y</notApplicableFlag>
            <classOwnership5PercentOrLess>N</classOwnership5PercentOrLess>
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         <item6>
            <notApplicableFlag>N</notApplicableFlag>
            <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>NOT APPLICABLE</ownershipMoreThan5PercentOnBehalfOfAnotherPerson>
         </item6>
         <item7>
            <notApplicableFlag>N</notApplicableFlag>
            <subsidiaryIdentificationAndClassification>SSGA FUNDS MANAGEMENT, INC. (IA);STATE STREET GLOBAL ADVISORS EUROPE LIMITED (IA);STATE STREET GLOBAL ADVISORS LIMITED (IA);STATE STREET GLOBAL ADVISORS TRUST COMPANY (IA);STATE STREET GLOBAL ADVISORS, LTD. (IA);</subsidiaryIdentificationAndClassification>
         </item7>
         <item8>
            <notApplicableFlag>N</notApplicableFlag>
            <identificationAndClassificationOfGroupMembers>NOT APPLICABLE</identificationAndClassificationOfGroupMembers>
         </item8>
         <item9>
            <notApplicableFlag>N</notApplicableFlag>
            <groupDissolutionNotice>NOT APPLICABLE</groupDissolutionNotice>
         </item9>
         <item10>
            <notApplicableFlag>N</notApplicableFlag>
            <certifications>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 § 240.14a-11.</certifications>
         </item10>
      </items>
      <signatureInformation>
         <reportingPersonName>STATE STREET CORPORATION</reportingPersonName>
         <signatureDetails>
            <signature>ELIZABETH SCHAEFER</signature>
            <title>SENIOR VICE PRESIDENT, CHIEF ACCOUNTING OFFICER</title>
            <date>08/07/2026</date>
         </signatureDetails>
      </signatureInformation>
   </formData>
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