REGENERON PHARMACEUTICALS, INC. — Director's Dealing 2012

Dec 21, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REGENERON PHARMACEUTICALS INC (REGN)
CIK: 0000872589
Period of Report: 2012-12-20

Reporting Person: Van Plew Daniel P (SVP & Gen Mgr IOPS)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-12-20	Common Stock	M	2050.0	$16.8	Acquired	6834.0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-12-20	Incentive Stock Option (right to buy)	$16.8	M	2050.0	Disposed	2018-12-17	Common Stock (2050.0)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1305.0	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.