IGM Biosciences Enters into Agreement to Be Acquired by Concentra Biosciences for $1.247 in Cash per Share Plus a Contingent Value Right

MOUNTAIN VIEW, Calif., July 01, 2025 (GLOBE NEWSWIRE) -- IGM Biosciences, Inc. (Nasdaq: IGMS), a biotechnology company that has focused on developing engineered IgM-based therapeutic antibodies, today announced that it has entered into a definitive merger agreement (the “Merger Agreement”) with Concentra Biosciences, LLC (“Concentra”), whereby Concentra will acquire IGM Biosciences for $1.247 in cash per share of IGM Biosciences common stock (“Common Stock”), plus one non-tradeable contingent value right (“CVR”), which represents the right to receive: (i) 100% of the closing net cash of IGM Biosciences in excess of $82.0 million; and (ii) 80% of any net proceeds received within one year following closing from any disposition of certain of IGM Biosciences’ product candidates and intellectual property that occurs within one year following closing, each pursuant to a contingent value rights agreement (the “CVR Agreement”).