Investors

Date	Name	Title	Type	Shares Traded	Price Range
Dec 16, 2010	van plew daniel p	Officer	Automatic Sell	25,000	32.00
Jan 18, 2011	van plew daniel p	Officer	Automatic Sell	25,000	35.22
Dec 16, 2008	yancopoulos george	Officer	Automatic Sell	74,859	16.40 - 16.42
Dec 3, 2009	yancopoulos george	Officer	Automatic Sell	67,860	19.29
Dec 14, 2012	yancopoulos george	Officer	Automatic Sell	38,391	179.13
Dec 17, 2012	yancopoulos george	Officer	Automatic Sell	238,535	179.13
Nov 30, 2011	yancopoulos george	Officer	Automatic Sell	142,722	58.19
Dec 1, 2011	yancopoulos george	Officer	Automatic Sell	27,713	58.86 - 59.45
Dec 14, 2011	yancopoulos george	Officer	Automatic Sell	38,516	51.18
Jan 5, 2012	yancopoulos george	Officer	Automatic Sell	27,713	58.00
May 1, 2012	yancopoulos george	Officer	Automatic Sell	33,165	133.95 - 135.29
Mar 26, 2012	yancopoulos george	Officer	Automatic Sell	33,150	120.21 - 121.09
Jun 14, 2010	ryan arthur f	Director	Buy	10,000	26.98
Oct 13, 2010	sanofi	Beneficial Owner (10% or more)	Buy	1,017,401	28.00
May 18, 2010	sing george l	Director	Buy	5,000	28.44
May 18, 2010	sing george l	Director	Buy	2,500	28.64
Nov 13, 2009	sing george l	Director	Buy	10,000	18.78
Nov 13, 2009	sing george l	Director	Buy	2,500	18.68 - 18.72
Nov 2, 2009	brown michael s	Director	Disposition (Non Open Market)	12,000	n/a
May 18, 2010	brown michael s	Director	Disposition (Non Open Market)	4,476	28.40
Showing 261-280 of 633 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.