Attached files

file filename
10-K - 10-K - ImmunoGen, Inc.imgn-20160630x10k.htm
EX-32 - EX-32 - ImmunoGen, Inc.imgn-20160630xex32.htm
EX-31.2 - EX-31.2 - ImmunoGen, Inc.imgn-20160630ex312ae142a.htm
EX-31.1 - EX-31.1 - ImmunoGen, Inc.imgn-20160630ex311b3a0f5.htm
EX-10.31 - EX-10.31 - ImmunoGen, Inc.imgn-20160630ex103187720.htm
EX-10.30 - EX-10.30 - ImmunoGen, Inc.imgn-20160630ex10303aa85.htm
EX-10.29 - EX-10.29 - ImmunoGen, Inc.imgn-20160630ex102978899.htm

EXHIBIT 23 


Consent of Independent Registered Public Accounting Firm 

        We consent to the incorporation by reference in the following Registration Statements (Form S-8 No. 333-170788, 333-185086, 333-75372, 333-75374, 333-138713, 333-147738, 333-155540 and 333-200432) of ImmunoGen Inc. of our reports dated August 25, 2016, with respect to the consolidated financial statements of ImmunoGen Inc. and the effectiveness of internal control over financial reporting of ImmunoGen Inc. included in this Annual Report (Form 10-K) of ImmunoGen Inc. for the year ended June 30, 2016.

/s/ Ernst & Young LLP

Boston, Massachusetts
August 25, 2016