<SEC-DOCUMENT>0001193125-21-216744-index.html : 20210715
<SEC-HEADER>0001193125-21-216744.hdr.sgml : 20210715
<ACCEPTANCE-DATETIME>20210715213831
ACCESSION NUMBER:		0001193125-21-216744
CONFORMED SUBMISSION TYPE:	S-1MEF
PUBLIC DOCUMENT COUNT:		4
<REFERENCE-462B>333-255491
FILED AS OF DATE:		20210715
DATE AS OF CHANGE:		20210715
EFFECTIVENESS DATE:		20210715

FILER:

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

	FILING VALUES:
		FORM TYPE:		S-1MEF
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-257938
		FILM NUMBER:		211094159

	BUSINESS ADDRESS:	
		STREET 1:		830 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		857-399-9500

	MAIL ADDRESS:	
		STREET 1:		830 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1MEF
<SEQUENCE>1
<FILENAME>d107876ds1mef.htm
<DESCRIPTION>S-1MEF
<TEXT>
Document 1 - file: d107876ds1mef.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d107876dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d107876dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>d107876dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: d107876dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g128082gra001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g128082gra001.jpg

</DOCUMENT>
</SEC-DOCUMENT>