Theseus Pharmaceuticals, Inc. engages in the development of pan-variant kinase inhibitors. It focuses on the discovery, development and commercialization of transformative targeted therapies. The company was founded by William C. Shakespeare, David C. Dalgarno, Iain D. Dukes, Wei Sheng Huang and Victor M. Rivera on December 29, 2017 and is headquartered in Cambridge, MA.