<SUBMISSION>
<ACCESSION-NUMBER>0000950123-04-013538
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20041112
<ITEMS>5.03
<ITEMS>9.01
<FILING-DATE>20041112
<DATE-OF-FILING-DATE-CHANGE>20041112
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>REGENERON PHARMACEUTICALS INC
<CIK>0000872589
<ASSIGNED-SIC>2834
<IRS-NUMBER>133444607
<STATE-OF-INCORPORATION>NY
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-19034
<FILM-NUMBER>041140022
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>777 OLD SAW MILL RIVER RD
<CITY>TARRYTOWN
<STATE>NY
<ZIP>10591-6707
<PHONE>9143477000
</BUSINESS-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>y68769e8vk.htm
<DESCRIPTION>FORM 8-K
<TEXT>
<HTML>
<HEAD>
<TITLE>FORM 8-K</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

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<P align="center" style="font-size: 14pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<P align="center" style="font-size: 18pt"><B>FORM 8-K</B>


<P align="center" style="font-size: 10pt"><B>CURRENT REPORT</B>



<P align="center" style="font-size: 10pt"><B>Pursuant to Section&nbsp;13 or 15(d) of the Securities and Exchange Act of 1934</B>



<P align="center" style="font-size: 10pt"><B>Date of Report (Date of earliest event reported): &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; November&nbsp;12, 2004</B>


<P align="center" style="font-size: 24pt"><B>REGENERON PHARMACEUTICALS, INC.</B>

<DIV align="center" style="font-size: 10pt"><HR align="center" size="1" noshade width="70%">
<B>(Exact name of registrant as specified in its charter)</B></DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">

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    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
</TR>

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<TR valign="bottom">
    <TD align="center" valign="top"><B>New York</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>000-19034</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>133444607</B></TD>
</TR>

<TR style="font-size: 1px">
    <TD align="center" valign="top"><HR size="1" noshade>&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><HR size="1" noshade>&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><HR size="1" noshade>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other<BR>
jurisdiction of<BR>
incorporation)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(Commission File Number)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. Employer<BR>
Identification Number)</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD colspan="3" valign="top" align="center"><B>777 Old Saw Mill River Road, Tarrytown, New York</B><BR></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>10591-6707</B></TD>
</TR>

<TR style="font-size: 1px">
    <TD colspan="5" valign="top" align="left"><HR size="1" noshade>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD colspan="3" valign="top" align="center">(Address of principal executive offices)<BR></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(Zip Code)</TD>
</TR>

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</TABLE>
</DIV>



<P align="center" style="font-size: 10pt"><B>(914)&nbsp;347-7000</B>


<DIV align="center" style="font-size: 10pt"><HR align="center" size="1" noshade width="25%"></DIV>


<DIV align="center" style="font-size: 10pt">(Registrant&#146;s telephone number, including area code)</DIV>


<P align="left" style="font-size: 10pt">Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of registrant under any of the
following provisions:


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">

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    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="96%">&nbsp;</TD>
</TR>

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<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT face="Wingdings">&#111;</FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT face="Wingdings">&#111;</FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT face="Wingdings">&#111;</FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Pre-commencement communications pursuant to Rule&nbsp;14d-2(b) under the Exchange Act (17
CFR 240.14d-2(b))</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT face="Wingdings">&#111;</FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Pre-commencement communications pursuant to Rule&nbsp;13e-4(c) under the Exchange Act (17
CFR 240.13e-4(c))</TD>
</TR>


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</TABLE>
</DIV>



<P>
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<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
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	<TD width="76%"></TD>
</TR>
<TR><TD></TD><TD colspan="8"><A HREF="#000">Item&nbsp;5.03 Amendment to Articles of Incorporation or Bylaws; Change in Fiscal Year</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#001">Item&nbsp;9.01 Financial Statements and Exhibits</A></TD></TR>
<TR><TD colspan="9"><A HREF="#002">Signatures</A></TD></TR>
<TR><TD colspan="9"><A HREF="#003">Exhibit&nbsp;Index</A></TD></TR>
<TR><TD colspan="9"><A HREF="y68769exv3w1.htm">EX-3.1 AMENDED TEXT OF ARTICLE I, SECTION 5 OF BY-LAWS</A></TD></TR>
</TABLE>
</CENTER>
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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>






<!-- link2 "Item&nbsp;5.03 Amendment to Articles of Incorporation or Bylaws; Change in Fiscal Year" -->
<DIV align="left"><A NAME="000"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;5.03 Amendment to Articles of Incorporation or Bylaws; Change in Fiscal Year</B>



<P align="left" style="margin-left:3%; font-size: 10pt">On November&nbsp;12, 2004, the Company&#146;s board of directors adopted an amendment to Article&nbsp;I, Section&nbsp;5
of the Company&#146;s By-Laws (the &#147;By-Laws&#148;) which sets forth the quorum requirements for meetings of
shareholders. The amendment was adopted solely to
conform the text of Section&nbsp;5 of the By-Laws to the requirements of Section 608(a) of the New York
Business Corporation Law (the &#147;NYBCL&#148;), which provides that
the holders of a majority of the votes of shares issued and outstanding and entitled to vote shall constitute a quorum at a meeting of
shareholders. Prior to the amendment, Section&nbsp;5 of the By-Laws
provided that, except as required by law or the By-Laws, the holders
of record of at least a majority of the shares of stock issued and
outstanding and entitled to vote constituted a quorum at all meetings
of shareholders. The foregoing description of the amendment is qualified in its entirety by reference to
the text of amended Article&nbsp;I, Section&nbsp;5 of the By-Laws which is attached hereto as Exhibit&nbsp;3.1 and
incorporated herein by reference.

<!-- link2 "Item&nbsp;9.01 Financial Statements and Exhibits" -->
<DIV align="left"><A NAME="001"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;9.01 Financial Statements and Exhibits</B>


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;<I>Exhibits.</I>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="95%">

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    <TD width="4%">&nbsp;</TD>
    <TD width="88%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>Exhibit Number</B><HR size="1" noshade></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left"><B>Description</B><HR size="1" noshade></TD>
</TR>


<!-- End Table Head -->

<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended text of Article&nbsp;I, Section&nbsp;5 of the Company&#146;s By-Laws</TD>
</TR>


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</TABLE>
</DIV>



<P align="center" style="font-size: 10pt">2
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "Signatures" -->
<DIV align="left"><A NAME="002"></A></DIV>

<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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.


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top">&nbsp;</TD>
    <TD colspan="3">REGENERON PHARMACEUTICALS, INC.<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD>Dated: November 12, 2004&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000">/s/ Stuart Kolinski
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2">Stuart Kolinski&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2">Vice President and General Counsel&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<P align="center" style="font-size: 10pt">3
</DIV>

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<DIV align="left"><A NAME="003"></A></DIV>

<P align="center" style="font-size: 10pt"><B>Exhibit&nbsp;Index</B>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">

<!-- Begin Table Head --><TR valign="bottom">
    <TD width="4%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="94%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>Number</B><HR size="1" noshade></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left"><B>Description</B><HR size="1" noshade></TD>
</TR>


<!-- End Table Head -->

<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended text of Article&nbsp;I, Section&nbsp;5 of the Company&#146;s By-laws</TD>
</TR>


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</TABLE>
</DIV>



<P align="center" style="font-size: 10pt">4
</DIV>

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<DOCUMENT>
<TYPE>EX-3.1
<SEQUENCE>2
<FILENAME>y68769exv3w1.htm
<DESCRIPTION>EX-3.1 AMENDED TEXT OF ARTICLE I, SECTION 5 OF BY-LAWS
<TEXT>
<HTML>
<HEAD>
<TITLE>EXHIBIT 3.1</TITLE>
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<BODY bgcolor="#FFFFFF">
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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<P align="right" style="font-size: 10pt">Exhibit&nbsp;3.1


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;5. Quorum. The holders of record of at least a majority <B>of
the votes </B>of shares of the stock of the corporation, issued and
outstanding and entitled to vote, present in person or by proxy, shall,
except as otherwise provided by law, <B>the certificate of incorporation </B>or
these By-Laws, constitute a quorum at all meetings of the shareholders;
if there be no such quorum, the holders of a majority <B>of the votes </B>of
such shares so present or represented may adjourn the meeting from time
to time until a quorum shall have been obtained.



<P align="center" style="font-size: 10pt">5
</DIV>


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</SUBMISSION>
