WALTHAM, Mass.--(BUSINESS WIRE)--ImmunoGen, Inc. (NASDAQ:IMGN), a biotechnology company that develops targeted anticancer products, today announced that the Company will host a conference call at 4:30 p.m. ET on Wednesday, August 4, 2010, to discuss ImmunoGen’s financial results for the three-month period and fiscal year ended June 30, 2010. Management also will provide an update on the Company.