Company:  IMMUNOGEN INC (IMGN)
Form Type:  8-K
Filing Date:  4/4/2013 
CIK:  0000855654 
Address:  830 WINTER ST 
City, State, Zip:  WALTHAM, Massachusetts 02451 
Telephone:  (781)895-0600 
Fiscal Year:  06/30 
Last Trade
Last Trade: 
$13.88  
Change: 
-0.68 (-4.67%)  
Trade Time: 
02:47 PM EST  
Market Cap: 
$1.19B
Description of Business
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  FORM 8-K
    SECTION 1 BUSINESS AND OPERATIONS
      ITEM 1.01. ENTRY INTO A MATERIAL DEFINITIVE AGREEMENT
    SIGNATURES
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