    <SEC-DOCUMENT>0001193125-24-093221-index.html : 20240411
    <SEC-HEADER>0001193125-24-093221.hdr.sgml : 20240411
    <ACCEPTANCE-DATETIME>20240411161056
    ACCESSION NUMBER:		0001193125-24-093221
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		4
    FILED AS OF DATE:		20240411
    DATE AS OF CHANGE:		20240411

    FILER:

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

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-06571
    		FILM NUMBER:		24838632

    	BUSINESS ADDRESS:
    		STREET 1:		2000 GALLOPING HILL ROAD
    		CITY:			KENILWORTH
    		STATE:			NJ
    		ZIP:			07033
    		BUSINESS PHONE:		908-740-4000

    	MAIL ADDRESS:
    		STREET 1:		2000 GALLOPING HILL ROAD
    		CITY:			KENILWORTH
    		STATE:			NJ
    		ZIP:			07033

    	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>DEFA14A
    <SEQUENCE>1
    <FILENAME>d500367ddefa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: d500367ddefa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g500367g01dsp1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g500367g01dsp1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g500367g02m00.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g500367g02m00.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g500367g03a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g500367g03a01.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>