WALTHAM, Mass.--(BUSINESS WIRE)--ImmunoGen, Inc. (Nasdaq:IMGN) will host a conference call at 4:30 pm EDT on Monday, October 27, 2008 to discuss the Company’s financial results for the three-month period ended September 30, 2008 – the first quarter of ImmunoGen’s 2009 fiscal year. Management also will provide an update on the Company.