C4 Therapeutics, Inc.
Biotechnology ResearchMassachusetts, United States51-200 Employees
C4 Therapeutics, Inc. is a clinical-stage biotechnology company pursuing targeted protein degradation science to develop a new generation of medicines. Its TORPEDO platform is used to design and optimize small-molecule degraders that induce degradation of disease-causing proteins, with a focus on oncology programs in clinical studies. The company is headquartered in Watertown, Massachusetts, and employs 51 to 200 people. In 2026, Roche signed a collaboration with C4 Therapeutics to jointly advance research in degrader-antibody conjugates for cancer. The company maintains an active partnering strategy alongside its internal pipeline, with collaborations including Roche, Merck KGaA, Biogen, and Betta Pharmaceuticals.