SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.     )

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¨ Preliminary Proxy Statement

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¨ Definitive Proxy Statement

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Regeneron Pharmaceuticals, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Shareholder Meeting to Be Held on June 14, 2013

	REGENERON PHARMACEUTICALS, INC.
	REGENERON PHARMACEUTICALS, INC. 777 OLD SAW MILL RIVER ROAD TARRYTOWN, NY 10591-6707

Meeting Information

  Meeting Type: Annual Meeting

  For holders as of: April 17, 2013

  Date: June 14, 2013        Time: 10:30 AM EDT

  Location: Westchester Marriott Hotel

   670 White Plains Road

   Tarrytown, New York 10591

   For Meeting Directions go to:

   www.regeneron.com

You are receiving this communication because you hold shares in the above named company.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

—  Before You Vote  —

How to Access the Proxy Materials

	Proxy Materials Available to VIEW or RECEIVE:
	1. Notice & Proxy Statement             2. Annual Report
	How to View Online:
	Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com.
	How to Request and Receive a PAPER or E-MAIL Copy:
	If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
	1) BY INTERNET:         www.proxyvote.com
	2) BY TELEPHONE:     1-800-579-1639
	3) BY E-MAIL*:             sendmaterial@proxyvote.com
	*   If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line.
	Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before June 02, 2013 to facilitate timely delivery.
	—  How To Vote  — Please Choose One of the Following Voting Methods
	Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.
	Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow available and follow the instructions.
	Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Voting items

	The Board of Directors recommends you vote FOR the following:
	1.	Election of Directors
		Nominees
	01	Michael S. Brown, M.D.	02	Leonard S. Schleifer	03	Eric M. Shooter, Ph.D.	04	George D. Yancopoulos
	The Board of Directors recommends you vote FOR the following proposal:
	2	Proposal to ratify the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2013.
	NOTE: In their discretion, the named proxies may vote on such other business as may properly come before the Annual Meeting or at any adjourned or postponed session thereof.