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Page 4 of 5
8-K
EX-1.1
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20 May 11
Entry into a Material Definitive Agreement
12:00am
8-K
EX-1.1
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7 May 10
Entry into a Material Definitive Agreement
12:00am
8-K
EX-1.1
lb48ozh4gykldj26z6a7
18 Jun 09
ImmunoGen, Inc. Prices Public Offering of Common Stock
12:00am
8-K
EX-10.2
dmrncp f9rjl37bmu
23 Jun 08
Entry into a Material Definitive Agreement
12:00am
8-K
EX-10.1
if2rkimeszlpi0vremgt
23 Jun 08
Entry into a Material Definitive Agreement
12:00am