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, invites investors, journalists and the general public to listen to a live webcast of the Company’s investment community meeting on February 25, 2011. The webcast will begin at 8:30 a.m. ET and may be accessed through the Investor Information section of the Company’s website, www.immunogen.com. The meeting is expected to last approximately three hours, including a short break. An archive of the webcast will be available on the Company’s website through March 11, 2011.