<SEC-DOCUMENT>0000902664-24-006718.txt : 20241119
<SEC-HEADER>0000902664-24-006718.hdr.sgml : 20241119
<ACCEPTANCE-DATETIME>20241119162643
ACCESSION NUMBER:		0000902664-24-006718
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20241115
FILED AS OF DATE:		20241119
DATE AS OF CHANGE:		20241119

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Nichols Weston
		CENTRAL INDEX KEY:			0001746376
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40603
		FILM NUMBER:		241476570

	MAIL ADDRESS:	
		STREET 1:		151 CALLE DE SAN FRANCISCO
		STREET 2:		SUITE 200, PMB 1237
		CITY:			SAN JUAN
		STATE:			PR
		ZIP:			00901-1607

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lynx1 Capital Management LP
		CENTRAL INDEX KEY:			0001910456
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40603
		FILM NUMBER:		241476571

	BUSINESS ADDRESS:	
		STREET 1:		151 CALLE DE SAN FRANCISCO
		STREET 2:		SUITE 200 PMB 1237
		CITY:			SAN JUAN
		STATE:			PR
		ZIP:			00901-1607
		BUSINESS PHONE:		703-963-7214

	MAIL ADDRESS:	
		STREET 1:		151 CALLE DE SAN FRANCISCO
		STREET 2:		SUITE 200 PMB 1237
		CITY:			SAN JUAN
		STATE:			PR
		ZIP:			00901-1607

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TScan Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001783328
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				825282075
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		880 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		857-399-9500

	MAIL ADDRESS:	
		STREET 1:		880 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-11-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001783328</issuerCik>
        <issuerName>TScan Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>TCRX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001910456</rptOwnerCik>
            <rptOwnerName>Lynx1 Capital Management LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>151 CALLE DE SAN FRANCISCO</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 200 PMB 1237</rptOwnerStreet2>
            <rptOwnerCity>SAN JUAN</rptOwnerCity>
            <rptOwnerState>PR</rptOwnerState>
            <rptOwnerZipCode>00901-1607</rptOwnerZipCode>
            <rptOwnerStateDescription>PUERTO RICO</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001746376</rptOwnerCik>
            <rptOwnerName>Nichols Weston</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>151 CALLE DE SAN FRANCISCO</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 200, PMB 1237</rptOwnerStreet2>
            <rptOwnerCity>SAN JUAN</rptOwnerCity>
            <rptOwnerState>PR</rptOwnerState>
            <rptOwnerZipCode>00901-1607</rptOwnerZipCode>
            <rptOwnerStateDescription>PUERTO RICO</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock, $0.0001 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2024-11-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>947</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.3442</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5225547</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.335 to $4.350, inclusive. The Reporting Persons undertake 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 purchased at each separate price within the range set forth herein.</footnote>
        <footnote id="F2">The securities to which this filing relates are held directly by Lynx1 Master Fund LP to which Lynx1 Capital Management LP (the &quot;Investment Manager&quot;) serves as investment manager. Weston Nichols (&quot;Mr. Nichols&quot;) is the sole member of Lynx1 Capital Management GP LLC, the general partner of the Investment Manager. Each of the Investment Manager and Mr. Nichols disclaims beneficial ownership of the securities to which this filing relates for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except to the extent of his or its pecuniary interest therein, if any.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Lynx1 Capital Management LP, By: Lynx1 Capital Management GP LLC, its general partner, By: /s/ Weston Nichols, Sole Member</signatureName>
        <signatureDate>2024-11-19</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Weston Nichols</signatureName>
        <signatureDate>2024-11-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
