    <SEC-DOCUMENT>0001628280-24-023433-index.html : 20240521
    <SEC-HEADER>0001628280-24-023433.hdr.sgml : 20240521
    <ACCEPTANCE-DATETIME>20240515113153
    ACCESSION NUMBER:		0001628280-24-023433
    CONFORMED SUBMISSION TYPE:	POSASR
    PUBLIC DOCUMENT COUNT:		10
    FILED AS OF DATE:		20240514
    DATE AS OF CHANGE:		20240521
    EFFECTIVENESS DATE:		20240515

    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:		POSASR
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-278066
    		FILM NUMBER:		24948378

    	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

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MSD Netherlands Capital B.V.
    		CENTRAL INDEX KEY:			0002022710
    		ORGANIZATION NAME:
    		IRS NUMBER:				981788174
    		STATE OF INCORPORATION:			P7
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		POSASR
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-278066-01
    		FILM NUMBER:		24948379

    	BUSINESS ADDRESS:
    		STREET 1:		WAARDERWEG 39
    		CITY:			HAARLEM
    		STATE:			P7
    		ZIP:			2031 BN
    		BUSINESS PHONE:		31 23 5153 153

    	MAIL ADDRESS:
    		STREET 1:		WAARDERWEG 39
    		CITY:			HAARLEM
    		STATE:			P7
    		ZIP:			2031 BN
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>POSASR
    <SEQUENCE>1
    <FILENAME>merckco-posasr.htm
    <DESCRIPTION>POSASR
    <TEXT>
    Document 1 - file: merckco-posasr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-FILING FEES
    <SEQUENCE>2
    <FILENAME>exhibit107-posasr.htm
    <DESCRIPTION>EX-FILING FEES
    <TEXT>
    Document 2 - file: exhibit107-posasr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-1.(B)
    <SEQUENCE>3
    <FILENAME>exhibit1b-posasr.htm
    <DESCRIPTION>EX-1.(B)
    <TEXT>
    Document 3 - file: exhibit1b-posasr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.(B)
    <SEQUENCE>4
    <FILENAME>exhibit4b-posasr.htm
    <DESCRIPTION>EX-4.(B)
    <TEXT>
    Document 4 - file: exhibit4b-posasr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.(B)
    <SEQUENCE>5
    <FILENAME>exhibit5b-posasr.htm
    <DESCRIPTION>EX-5.(B)
    <TEXT>
    Document 5 - file: exhibit5b-posasr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.(C)
    <SEQUENCE>6
    <FILENAME>exhibit5c-posasr.htm
    <DESCRIPTION>EX-5.(C)
    <TEXT>
    Document 6 - file: exhibit5c-posasr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.(A)
    <SEQUENCE>7
    <FILENAME>exhibit23a-posasr.htm
    <DESCRIPTION>EX-23.(A)
    <TEXT>
    Document 7 - file: exhibit23a-posasr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-25.(B)
    <SEQUENCE>8
    <FILENAME>exhibit25b-posasr.htm
    <DESCRIPTION>EX-25.(B)
    <TEXT>
    Document 8 - file: exhibit25b-posasr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>exhibit2.jpg
    <TEXT>
    Document 9 - file: exhibit2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>exhibit5c.jpg
    <TEXT>
    Document 10 - file: exhibit5c.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>