<SEC-DOCUMENT>0001628280-25-017960-index.html : 20250708
<SEC-HEADER>0001628280-25-017960.hdr.sgml : 20250708
<ACCEPTANCE-DATETIME>20250416124216
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0001628280-25-017960
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20250416

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Merck & Co., Inc.
		CENTRAL INDEX KEY:			0000310158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				221918501
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		126 EAST LINCOLN AVENUE
		STREET 2:		P.O. BOX 2000
		CITY:			RAHWAY
		STATE:			NJ
		ZIP:			07065
		BUSINESS PHONE:		908-740-4000

	MAIL ADDRESS:	
		STREET 1:		126 EAST LINCOLN AVENUE
		STREET 2:		P.O. BOX 2000
		CITY:			RAHWAY
		STATE:			NJ
		ZIP:			07065

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Merck & Co. Inc.
		DATE OF NAME CHANGE:	20091103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SCHERING PLOUGH CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>mrksecresponseletter001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: mrksecresponseletter001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>mrksecresponseletter002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: mrksecresponseletter002.jpg

</DOCUMENT>
</SEC-DOCUMENT>