<SEC-DOCUMENT>0000909518-14-000295-index.html : 20141017
<SEC-HEADER>0000909518-14-000295.hdr.sgml : 20141017
<ACCEPTANCE-DATETIME>20141017170010
ACCESSION NUMBER:		0000909518-14-000295
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20141017
DATE AS OF CHANGE:		20141017

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			REGENERON PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0000872589
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				133444607
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-41938
		FILM NUMBER:		141162358

	BUSINESS ADDRESS:	
		STREET 1:		777 OLD SAW MILL RIVER ROAD
		CITY:			TARRYTOWN
		STATE:			NY
		ZIP:			10591
		BUSINESS PHONE:		9143477000

	MAIL ADDRESS:	
		STREET 1:		777 OLD SAW MILL RIVER ROAD
		CITY:			TARRYTOWN
		STATE:			NY
		ZIP:			10591

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sanofi
		CENTRAL INDEX KEY:			0001121404
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				133529324
		STATE OF INCORPORATION:			I0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		54 RUE LA BOETIE
		CITY:			PARIS
		STATE:			I0
		ZIP:			75008
		BUSINESS PHONE:		33153774400

	MAIL ADDRESS:	
		STREET 1:		54 RUE LA BOETIE
		CITY:			PARIS
		STATE:			I0
		ZIP:			75008

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SANOFI-AVENTIS
		DATE OF NAME CHANGE:	20040826

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SANOFI SYNTHELABO SA
		DATE OF NAME CHANGE:	20010104
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>mm10-1714regeneron_13da10.htm
<DESCRIPTION>AMENDMENT NO. 10
<TEXT>
Document 1 - file: mm10-1714regeneron_13da10.htm

</DOCUMENT>
</SEC-DOCUMENT>