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 Bayer HealthCare Pharmaceuticals’ submission of an Investigational New Drug (IND) application for the TAP compound, BAY 94-9343, triggers a $2 million milestone payment to ImmunoGen.