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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
872589	Regeneron Pharmaceuticals Inc	REGN	Pharmaceutical Preparations (2834)	133444607

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1226687	William Roberts	777 Old Saw Mill River Road Tarrytown NY 10591	Vp Regulatory Development And	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2011-07-14	63	$56.43	3,694	No	4	S	Indirect	by Spouse
Common Stock	Disposition	2011-07-14	47	$57.07	3,647	No	4	S	Indirect	by Spouse

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	by Spouse
No	4	S	Indirect	by Spouse

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	66,956	Direct
Common Stock	1,200	Indirect	by trust for daught
Common Stock	4,187	Indirect	By 401(k) Plan
Common Stock	1,200	Indirect	by trust for daught

Footnotes

Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c).
Represents volume-weighted average price of sales of 63 shares of Company stock on July 14, 2011 at prices ranging from $56.30 to $56.68. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the spouse of the reporting person on July 14, 2011 at each separate price.