<SEC-DOCUMENT>0001104659-16-114229-index.html : 20160426
<SEC-HEADER>0001104659-16-114229.hdr.sgml : 20160426
<ACCEPTANCE-DATETIME>20160426162413
ACCESSION NUMBER:		0001104659-16-114229
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20160426
DATE AS OF CHANGE:		20160426
EFFECTIVENESS DATE:		20160426

FILER:

	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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19034
		FILM NUMBER:		161592261

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>a16-2385_3defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: a16-2385_3defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g23853bii001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g23853bii001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g23853bii002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g23853bii002.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g23853bii003.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g23853bii003.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g23853bii004.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g23853bii004.gif

</DOCUMENT>
</SEC-DOCUMENT>