8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934


Date of Report (Date of earliest event reported)    February 4, 2005 (February 1, 2005)


REGENERON PHARMACEUTICALS, INC.

(Exact name of registrant as specified in its charter)


New York 0-19034 No. 13-3444607



(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)


777 Old Saw Mill River Road, Tarrytown, New York   10591-6707



(Address of principal executive offices)      (Zip Code)


Registrant's telephone number, including area code  (914) 347-7000


NOT APPLICABLE
(Former name or former address, if changed since last report.)


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act
(17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act
(17 CFR 240.13e-4(c))





Item 8.01 Other Events

  On February 1, 2005, the United States District Court for the Southern District of New York denied the Company’s motion to dismiss the consolidated amended complaint in the previously disclosed purported class action securities lawsuit first commenced against the Company and certain of its officers and directors in May 2003. The Company believes that the lawsuit is without merit and intends to continue to defend the action vigorously.



                Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

    REGENERON PHARMACEUTICALS, INC.


Dated: February 4, 2005   By: /s/ Stuart Kolinski
       
        Stuart Kolinski
Vice President and General Counsel