Attached files

file filename
10-Q/A - 10-Q/A - ImmunoGen, Inc.a15-17762_110qa.htm
EX-10.2 - EX-10.2 - ImmunoGen, Inc.a15-17762_1ex10d2.htm
EX-31.2 - EX-31.2 - ImmunoGen, Inc.a15-17762_1ex31d2.htm
EX-10.3 - EX-10.3 - ImmunoGen, Inc.a15-17762_1ex10d3.htm

EXHIBIT 31.1

 

CERTIFICATIONS

 

I, Daniel Junius, certify that:

 

1.                                      I have reviewed this Amendment No. 2 to Quarterly Report on Form 10-Q/A of ImmunoGen, Inc.; and

 

2.                                      Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

 

 

Date: August 19, 2015

 

/s/ Daniel M. Junius

 

Daniel M. Junius

 

President, Chief Executive Officer (Principal Executive Officer)