<SEC-DOCUMENT>0001193125-21-194217-index.html : 20210621
<SEC-HEADER>0001193125-21-194217.hdr.sgml : 20210621
<ACCEPTANCE-DATETIME>20210621080814
ACCESSION NUMBER:		0001193125-21-194217
CONFORMED SUBMISSION TYPE:	424B4
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20210621
DATE AS OF CHANGE:		20210621

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			C4 Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001662579
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				475617627
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B4
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-257067
		FILM NUMBER:		211027490

	BUSINESS ADDRESS:	
		STREET 1:		490 ARSENAL WAY
		STREET 2:		SUITE 200
		CITY:			WATERTOWN
		STATE:			MA
		ZIP:			02472
		BUSINESS PHONE:		(617) 231-0700

	MAIL ADDRESS:	
		STREET 1:		490 ARSENAL WAY
		STREET 2:		SUITE 200
		CITY:			WATERTOWN
		STATE:			MA
		ZIP:			02472
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B4
<SEQUENCE>1
<FILENAME>d166393d424b4.htm
<DESCRIPTION>424B4
<TEXT>
Document 1 - file: d166393d424b4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g166393g01c20.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g166393g01c20.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g166393g02v46.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g166393g02v46.jpg

</DOCUMENT>
</SEC-DOCUMENT>