REGENERON PHARMACEUTICALS, INC. — Director's Dealing 2014

Feb 19, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REGENERON PHARMACEUTICALS INC (REGN)
CIK: 0000872589
Period of Report: 2014-02-14

Reporting Person: Aberman Michael S (VP Strategy and Investor Relat)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-02-14	Common Stock	M	7500.0	$30.63	Acquired	23100	Direct
2014-02-14	Common Stock	F	710.0	$323.3	Disposed	22390	Direct
2014-02-14	Common Stock	F	3142.0	$323.3	Disposed	19248	Direct
2014-02-18	Common Stock	S	100.0	$324.81	Disposed	19148	Direct
2014-02-18	Common Stock	S	200.0	$325.36	Disposed	18948	Direct
2014-02-18	Common Stock	S	300.0	$327.56	Disposed	18648	Direct
2014-02-18	Common Stock	S	100.0	$328.6	Disposed	18548	Direct
2014-02-18	Common Stock	S	200.0	$329.34	Disposed	18348	Direct
2014-02-18	Common Stock	S	200.0	$330.87	Disposed	18148	Direct
2014-02-18	Common Stock	S	200.0	$331.16	Disposed	17948	Direct
2014-02-18	Common Stock	S	1100.0	$332.41	Disposed	16848	Direct
2014-02-18	Common Stock	S	948.0	$333.5	Disposed	15900	Direct
2014-02-18	Common Stock	S	300.0	$334.24	Disposed	15600	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-02-14	Non-Qualified Stock Option (right to buy)	$30.63	M	7500.0	Disposed	2020-12-14	Common Stock (7500)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	376	Indirect

Footnotes

F1: Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c).

F2: Represents volume-weighted average price of sales of 200 shares of Company stock on February 18, 2014 at prices ranging from $325.11 to $325.61. 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 reporting person on February 18, 2014 at each separate price.

F3: Represents volume-weighted average price of sales of 300 shares of Company stock on February 18, 2014 at prices ranging from $327.00 to $327.85. 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 reporting person on February 18, 2014 at each separate price.

F4: Represents volume-weighted average price of sales of 200 shares of Company stock on February 18, 2014 at prices ranging from $329.05 to $329.63. 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 reporting person on February 18, 2014 at each separate price.

F5: Represents volume-weighted average price of sales of 200 shares of Company stock on February 18, 2014 at prices ranging from $330.82 to $330.91. 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 reporting person on February 18, 2014 at each separate price.

F6: Represents volume-weighted average price of sales of 200 shares of Company stock on February 18, 2014 at prices ranging from $331.01 to $331.31. 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 reporting person on February 18, 2014 at each separate price.

F7: Represents volume-weighted average price of sales of 1,100 shares of Company stock on February 18, 2014 at prices ranging from $332.00 to $332.85. 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 reporting person on February 18, 2014 at each separate price.

F8: Represents volume-weighted average price of sales of 948 shares of Company stock on February 18, 2014 at prices ranging from $333.06 to $333.92. 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 reporting person on February 18, 2014 at each separate price.

F9: Represents volume-weighted average price of sales of 300 shares of Company stock on February 18, 2014 at prices ranging from $334.00 to $334.41. 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 reporting person on February 18, 2014 at each separate price.

F10: The stock option award vests in four equal annual installments, commencing one year after the date of grant.