WALTHAM, Mass.--(BUSINESS WIRE)--ImmunoGen, Inc. (Nasdaq:IMGN), a biotechnology company that develops targeted antibody-based anticancer products using its antibody expertise and Targeted Antibody Payload (TAP) technology, today announced that the Company will host a conference call at 4:30 p.m. ET on Thursday, October 28, 2010, to discuss ImmunoGen’s financial results for the three-month period ended September 30, 2010 – the first quarter of the Company’s 2011 fiscal year. Management also will provide an update on the Company.