Ambrx Biopharma Inc. is a clinical-stage company developing engineered precision biologics using its proprietary expanded genetic code technology platform. It creates antibody-drug conjugate and immune-oncology conjugate candidates, including ARX788, ARX517, ARX305, and ARX822. Ambrx collaborates with multiple pharmaceutical companies in additional therapeutic areas, including metabolic disorders and cardiovascular disease. The company was incorporated in 2003 and is headquartered in La Jolla, CA.