REGENERON PHARMACEUTICALS, INC. — Director's Dealing 2011

Nov 15, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REGENERON PHARMACEUTICALS INC (REGN)
CIK: 0000872589
Period of Report: 2011-11-14

Reporting Person: STAHL NEIL (SVP Research and Development S)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-11-14	Common Stock	M	17182	$11.64	Acquired	67532	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-11-14	Incentive Stock Option (right to buy)	$11.64	M	17182	Disposed	2015-12-19	Common Stock (17182)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5335	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.