<SEC-DOCUMENT>0000950123-01-502827-index.html : 20010522

<SEC-HEADER>0000950123-01-502827.hdr.sgml : 20010522

ACCESSION NUMBER:		0000950123-01-502827

CONFORMED SUBMISSION TYPE:	SC 13D

PUBLIC DOCUMENT COUNT:		3

FILED AS OF DATE:		20010521


SUBJECT COMPANY:	


	COMPANY DATA:	

		COMPANY CONFORMED NAME:			ROSETTA INPHARMATICS INC

		CENTRAL INDEX KEY:			0001081935

		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]

		IRS NUMBER:				911770023


	FILING VALUES:

		FORM TYPE:		SC 13D

		SEC ACT:		

		SEC FILE NUMBER:	005-59447

		FILM NUMBER:		1644634


	BUSINESS ADDRESS:	

		STREET 1:		12040 115TH AVE NE

		STREET 2:		SUITE 210

		CITY:			KIRKLAND

		STATE:			WA

		ZIP:			98034

		BUSINESS PHONE:		4258237336


	MAIL ADDRESS:	

		STREET 1:		12040 115TH AVENUE NE

		CITY:			KIRKLAND

		STATE:			WA

		ZIP:			98034


FILED BY:		


	COMPANY DATA:	

		COMPANY CONFORMED NAME:			MERCK & CO INC

		CENTRAL INDEX KEY:			0000064978

		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]

		IRS NUMBER:				221109110

		STATE OF INCORPORATION:			NJ

		FISCAL YEAR END:			1231


	FILING VALUES:

		FORM TYPE:		SC 13D


	BUSINESS ADDRESS:	

		STREET 1:		ONE MERCK DR

		STREET 2:		P O BOX 100

		CITY:			WHITEHOUSE STATION

		STATE:			NJ

		ZIP:			08889-0100

		BUSINESS PHONE:		9084234044


	MAIL ADDRESS:	

		STREET 1:		ONE MERCK DR

		STREET 2:		PO BOX 100 WS3AB-05

		CITY:			WHITEHOUSE STATION

		STATE:			NJ

		ZIP:			08889-0100

</SEC-HEADER>

<DOCUMENT>
<TYPE>SC 13D
<SEQUENCE>1
<FILENAME>y49434sc13d.txt
<DESCRIPTION>SCHEDULE 13D
<TEXT>
Document 1 - file: y49434sc13d.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.A
<SEQUENCE>2
<FILENAME>y49434ex99-a.txt
<DESCRIPTION>AGREEMENT AND PLAN OF MERGER
<TEXT>
Document 2 - file: y49434ex99-a.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.B
<SEQUENCE>3
<FILENAME>y49434ex99-b.txt
<DESCRIPTION>FORM OF VOTING AND STOCK OPTION AGREEMENTS
<TEXT>
Document 3 - file: y49434ex99-b.txt

</DOCUMENT>
</SEC-DOCUMENT>