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Filing Details

Accession Number:: 0001209191-13-043847
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2013-09-11 16:05:57
Reporting Period:: 2013-09-09

Filing Date:: 2013-09-11
Accepted Time:: 2013-09-11 16:05:57
SEC Url:: Form 4 Filing

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
1218629	S Leonard Schleifer	777 Old Saw Mill River Road Tarrytown NY 10591	Ceo & President	Yes	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2013-09-09	5,000	$0.00	5,000	No	4	C	Indirect	By Trust for Son
Common Stock	Disposition	2013-09-09	3,600	$275.04	1,400	No	4	S	Indirect	By Trust for Son
Common Stock	Disposition	2013-09-09	1,200	$276.47	200	No	4	S	Indirect	By Trust for Son
Common Stock	Disposition	2013-09-09	200	$277.12	0	No	4	S	Indirect	By Trust for Son

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	By Trust for Son
No	4	S	Indirect	By Trust for Son
No	4	S	Indirect	By Trust for Son
No	4	S	Indirect	By Trust for Son

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Class A Stock	Disposition	2013-09-09	5,000	$0.00	5,000	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
17,275			No	4	C	Indirect

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	5,618	Indirect	By 401(k) Plan
Common Stock	42,087	Direct

Reported Derivative Holdings

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Sec. Name	Sec. Type	Price	Date	Expiration Date	Amount	Remaning Holdings	Nature of Ownership
Common Stock	Class A Stock	$0.00			1,710,790	1,710,790	Direct

Expiration Date	Amount	Remaning Holdings	Nature of Ownership
	1,710,790	1,710,790	Direct

Footnotes

Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c).
Class A Stock of Regeneron Pharmaceuticals, Inc. ("Regeneron") converts to Common Stock of Regeneron on a one-to-one basis upon certain events or upon election of the shareholder.
These shares of Class A Stock are presently convertible and such conversion feature does not expire.
Represents volume-weighted average price of sales of 3,600 shares fo Company stock on September 9, 2013 at prices ranging from $275.00 to $275.63. 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 September 9, 2013 at each separate price.
Represents volume-weighted average price of sales of 1,200 shares fo Company stock on September 9, 2013 at prices ranging from $276.14 to $276.80. 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 September 9, 2013 at each separate price.
Represents volume-weighted average price of sales of 200 shares fo Company stock on September 9, 2013 at prices ranging from $277.00 to $277.24. 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 September 9, 2013 at each separate price.