<SEC-DOCUMENT>0000310158-18-000012-index.html : 20180508
<SEC-HEADER>0000310158-18-000012.hdr.sgml : 20180508
<ACCEPTANCE-DATETIME>20180508164120
ACCESSION NUMBER:		0000310158-18-000012
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20180508
DATE AS OF CHANGE:		20180508
EFFECTIVENESS DATE:		20180508

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Merck & Co., Inc.
		CENTRAL INDEX KEY:			0000310158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		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:		18815287

	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>schedule14a_definitiveaddi.htm
<DESCRIPTION>DEFINITIVE ADDITIONAL MATERIALS - REMINDER LETTER
<TEXT>
Document 1 - file: schedule14a_definitiveaddi.htm

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

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>schedule14adefinitive_image1.jpg
<TEXT>
Document 3 - file: schedule14adefinitive_image1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>schedule14adefinitive_image2.jpg
<TEXT>
Document 4 - file: schedule14adefinitive_image2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>schedule14adefinitive_image3.jpg
<TEXT>
Document 5 - file: schedule14adefinitive_image3.jpg

</DOCUMENT>
</SEC-DOCUMENT>