<SEC-DOCUMENT>0001104659-22-058856-index.html : 20220511
<SEC-HEADER>0001104659-22-058856.hdr.sgml : 20220511
<ACCEPTANCE-DATETIME>20220511170135
ACCESSION NUMBER:		0001104659-22-058856
CONFORMED SUBMISSION TYPE:	SC TO-T/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20220511
DATE AS OF CHANGE:		20220511
GROUP MEMBERS:		SCANDINAVIAN ACQUISITION SUB, INC.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Checkmate Pharmaceuticals, Inc.
		CENTRAL INDEX KEY:			0001651431
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				364813934
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC TO-T/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91617
		FILM NUMBER:		22914582

	BUSINESS ADDRESS:	
		STREET 1:		245 MAIN STREET, 2ND FLOOR
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		978-503-2124

	MAIL ADDRESS:	
		STREET 1:		245 MAIN STREET, 2ND FLOOR
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			REGENERON PHARMACEUTICALS, INC.
		CENTRAL INDEX KEY:			0000872589
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				133444607
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC TO-T/A

	BUSINESS ADDRESS:	
		STREET 1:		777 OLD SAW MILL RIVER ROAD
		CITY:			TARRYTOWN
		STATE:			NY
		ZIP:			10591
		BUSINESS PHONE:		9148477000

	MAIL ADDRESS:	
		STREET 1:		777 OLD SAW MILL RIVER ROAD
		CITY:			TARRYTOWN
		STATE:			NY
		ZIP:			10591

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	REGENERON PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC TO-T/A
<SEQUENCE>1
<FILENAME>tm2215205d1_sctota.htm
<DESCRIPTION>SC TO-T/A
<TEXT>
Document 1 - file: tm2215205d1_sctota.htm

</DOCUMENT>
</SEC-DOCUMENT>