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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0001047469-03-019947.txt : 20030528
<SEC-HEADER>0001047469-03-019947.hdr.sgml : 20030528
<ACCEPTANCE-DATETIME>20030528172556
ACCESSION NUMBER:		0001047469-03-019947
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030528
ITEM INFORMATION:		Other events
FILED AS OF DATE:		20030528

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENZYME CORP
		CENTRAL INDEX KEY:			0000732485
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				061047163
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14680
		FILM NUMBER:		03722172

	BUSINESS ADDRESS:	
		STREET 1:		ONE KENDALL SQ
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
		BUSINESS PHONE:		6172527500

	MAIL ADDRESS:	
		STREET 1:		ONE KENDALL SQUARE
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a2112196z8-k.txt
<DESCRIPTION>FORM 8-K
<TEXT>
<Page>


                                  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):
                                  MAY 28, 2003


                               GENZYME CORPORATION
             (Exact name of registrant as specified in its charter)


    MASSACHUSETTS                      0-14680                 06-1047163
(State or other jurisdiction of     (Commission              (IRS employer
incorporation or organization)       file number)       identification number)


               ONE KENDALL SQUARE, CAMBRIDGE, MASSACHUSETTS 02139
               (Address of Principal Executive Offices) (Zip Code)


               Registrant's telephone number, including area code:
                                 (617) 252-7500


<Page>


ITEM 5. OTHER EVENTS.

     On May 28, 2003, a lawsuit was filed in Massachusetts Superior Court on
behalf of holders of Genzyme Biosurgery Division Common Stock related to the
elimination of our tracking stock structure. We believe the case is without
merit, and we intend to defend it vigorously.


<Page>


                                    SIGNATURE


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


                                  GENZYME CORPORATION


Dated: May 28, 2003               By: /S/ MICHAEL S. WYZGA
                                     ----------------------------------------
                                     Michael S. Wyzga
                                     Senior Vice President, Finance;
                                     Chief Financial Officer and
                                     Chief Accounting Officer


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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