<SEC-DOCUMENT>0001209191-21-056409.txt : 20210916
<SEC-HEADER>0001209191-21-056409.hdr.sgml : 20210916
<ACCEPTANCE-DATETIME>20210916164404
ACCESSION NUMBER:		0001209191-21-056409
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210914
FILED AS OF DATE:		20210916
DATE AS OF CHANGE:		20210916

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GADICKE ANSBERT
		CENTRAL INDEX KEY:			0001134655

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39856
		FILM NUMBER:		211258410

	MAIL ADDRESS:	
		STREET 1:		THE JOHN HANCOCK TOWER
		STREET 2:		200 CLARENDON STREET, 54TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cullinan Oncology, Inc.
		CENTRAL INDEX KEY:			0001789972
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				813867811
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE MAIN STREET
		STREET 2:		SUITE 520
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		617-410-4650

	MAIL ADDRESS:	
		STREET 1:		ONE MAIN STREET
		STREET 2:		SUITE 520
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

	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
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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    <periodOfReport>2021-09-14</periodOfReport>

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    <issuer>
        <issuerCik>0001789972</issuerCik>
        <issuerName>Cullinan Oncology, Inc.</issuerName>
        <issuerTradingSymbol>CGEM</issuerTradingSymbol>
    </issuer>

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        <reportingOwnerId>
            <rptOwnerCik>0001134655</rptOwnerCik>
            <rptOwnerName>GADICKE ANSBERT</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MPM ASSET MANAGEMENT LLC</rptOwnerStreet1>
            <rptOwnerStreet2>450 KENDALL STREET</rptOwnerStreet2>
            <rptOwnerCity>CAMBRIDGE</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02142</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
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        </nonDerivativeTransaction>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <sharesOwnedFollowingTransaction>
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                <value></value>
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                <transactionShares>
                    <value>6425</value>
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                    <value>29.16</value>
                    <footnoteId id="F5"/>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                    <value>7651392</value>
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                <directOrIndirectOwnership>
                    <value>I</value>
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                    <value>See Footnote</value>
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    <footnotes>
        <footnote id="F1">Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 on June 23, 2021.</footnote>
        <footnote id="F2">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.35 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.</footnote>
        <footnote id="F3">These securities are owned directly by UBS Oncology Impact Fund LP (&quot;OIF&quot;). The general partner of OIF is Oncology Impact Fund (Cayman) Management L.P. (&quot;OIF GP&quot;). The general partner of OIF GP is BioImpact Capital LLC. Dr. Ansbert Gadicke is a member of the Issuer's board of directors and is a managing partner of BioImpact Capital LLC.</footnote>
        <footnote id="F4">The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F5">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.43 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ansbert Gadicke</signatureName>
        <signatureDate>2021-09-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
