Investors

Date	Name	Title	Type	Shares Traded	Price Range
Sep 29, 2008	schleifer leonard s	Officer	Disposition (Non Open Market)	44,273	23.28
Dec 20, 2007	schleifer leonard s	Officer	Option Execute	37,370	8.63
Dec 20, 2007	schleifer leonard s	Officer	Automatic Sell	22,207	22.28
Oct 13, 2010	sanofi	Beneficial Owner (10% or more)	Buy	1,017,401	28.00
Dec 20, 2007	sanofi	Beneficial Owner (10% or more)	Statement of Ownership	0	n/a
May 31, 2013	ryan arthur f	Director	Sell	2,500	249.45 - 249.58
May 23, 2013	ryan arthur f	Director	Disposition (Non Open Market)	3,000	n/a
Nov 1, 2012	ryan arthur f	Director	Sell	10,000	145.57
Aug 10, 2012	ryan arthur f	Director	Sell	10,000	136.15
May 10, 2012	ryan arthur f	Director	Disposition (Non Open Market)	7,000	n/a
Jan 12, 2012	ryan arthur f	Director	Sell	25,500	78.86 - 79.09
Sep 14, 2011	ryan arthur f	Director	Option Execute	115,000	9.17 - 24.41
Sep 14, 2011	ryan arthur f	Director	Disposition (Non Open Market)	32,145	64.85
Jun 14, 2010	ryan arthur f	Director	Buy	10,000	26.98
Nov 30, 2012	roberts william	Officer	Sell	11,500	177.43 - 186.00
Nov 27, 2012	roberts william	Officer	Disposition (Non Open Market)	11,500	n/a
Nov 27, 2012	roberts william	Officer	Acquisition (Non Open Market)	11,500	n/a
Nov 5, 2012	roberts william	Officer	Acquisition (Non Open Market)	26,000	n/a
Nov 5, 2012	roberts william	Officer	Disposition (Non Open Market)	26,000	n/a
Sep 4, 2012	roberts william	Officer	Acquisition (Non Open Market)	19,947	n/a
Showing 241-260 of 639 transactions Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32  See Previous 20 | See Next 20

Stock transaction information provided by EDGAR Online. Regeneron Pharmaceuticals, Inc. makes no representation or warranty with respect to any of the information contained herein, takes no responsibility for supplementing, updating or correcting any such information and shall have no liability with respect to any such information. This listing does not include derivatives, such as stock option grants or shares purchased through an employee stock purchase plan. For recent transactions, including derivative transactions, see our Section 16 SEC filings page.