Company:  GENZYME CORP (GENZ)
Form Type:  10-Q
Filing Date:  5/11/2009 
CIK:  0000732485 
Address:  ONE KENDALL SQ 
City, State, Zip:  CAMBRIDGE, Massachusetts 02139 
Telephone:  (617) 252-7500 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$50.05  
Change: 
0.42 (0.85%)  
Trade Time: 
Nov 20  
Market Cap: 
$13.28B
Description of Business
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  FORM 10-Q
    PART I. FINANCIAL INFORMATION
      ITEM 1. FINANCIAL STATEMENTS
        INCOME STATEMENT
        BALANCE SHEET
        CASH FLOW
        Notes to Unaudited, Consolidated Financial Statements
          INCOME STATEMENT
      ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF GENZYME ...
      FINANCIAL STATEMENTS
        CASH FLOW
      ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT ...
      ITEM 4. CONTROLS AND PROCEDURES
    PART II. OTHER INFORMATION
      ITEM 1. LEGAL PROCEEDINGS
      ITEM 1A. RISK FACTORS
      ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF ...
      ITEM 6. EXHIBITS
    SIGNATURES
  EXHIBIT 31.1
  EXHIBIT 31.2
  EXHIBIT 32.1
    Certification by the Chief Executive Officer Pursuant to
  EXHIBIT 32.2
    Certification by the Chief Financial Officer Pursuant to