IGM Biosciences, Inc., a biotechnology company, develops Immunoglobulin M antibodies for the treatment of cancer and autoimmune and inflammatory diseases. The company was formerly known as Palingen, Inc. and changed its name to IGM Biosciences, Inc. in 2010. IGM Biosciences, Inc. was incorporated in 1993 and is headquartered in Mountain View, California. As of August 14, 2025, IGM Biosciences, Inc. operates as a subsidiary of Concentra Biosciences, LLC.