WALTHAM, Mass.--(BUSINESS WIRE)--ImmunoGen, Inc. (Nasdaq: IMGN), a biotechnology company that develops targeted 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 Wednesday, August 3, 2011, to discuss ImmunoGen’s financial results for the three-month period and fiscal year ended June 30, 2011. Management also will provide an update on the Company and guidance for ImmunoGen’s fiscal year ending June 30, 2012.