Acumen Pharmaceuticals Inc. Common Stock. Replay the stock market charts of ABOS day by day, back to 2003. Open long and short positions without spending any money. Acumen Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, discovers and develops therapies for the treatment of Alzheimer's disease. The company focuses on advancing a targeted immunotherapy drug candidate ACU193, a humanized monoclonal antibody that is in Phase I clinical-stage to target soluble amyloid-beta oligomers. Acumen Pharmaceuticals, Inc. was incorporated in 1996 and is headquartered in Charlottesville, Virginia.