REGENERON PHARMACEUTICALS, INC. — Director's Dealing 2011

Dec 20, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REGENERON PHARMACEUTICALS INC (REGN)
CIK: 0000872589
Period of Report: 2011-12-16

Reporting Person: GOLDBERG MURRAY A (SVP Finance and Admin CFO Trea)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-20	Common Stock	M	2500	$11.64	Acquired	89361	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-12-20	Incentive Stock Option (right to buy)	$11.64	M	2500	Disposed	2015-12-19	Common Stock (2500)	Direct
2011-12-16	Incentive Stock Option (right to buy)	$52.03	A	1921	Acquired	2021-12-16	Common Stock (1921)	Direct
2011-12-16	Non-Qualified Stock Option (right to buy)	$16.8	A	56250	Acquired	2018-12-17	Common Stock (56250)	Direct
2011-12-16	Non-Qualified Stock Option (right to buy)	$52.03	A	38079	Acquired	2021-12-16	Common Stock (38079)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5416	Indirect

Footnotes

F1: The stock option award (combined incentive stock option and non-qualified stock option) vests in four equal annual installments, commencing one year after the date of grant.

F2: Exercisable date, exercise date, exercise price, purchase price, sales price, and/or expiration date is/are not applicable in this case.

F3: On December 17, 2008, the reporting person was granted an option to purchase 56,250 shares of Common Stock. The option vests, partially or in full, on December 31, 2011, based on the extent to which the company satisfies certain performance criteria during the period ending December 31, 2011. The performance criteria have been met and the option will vest as to all 56,250 shares on December 31, 2011.