Agenus Inc., a clinical-stage biotechnology company, discovers and develops therapies to activate the body's immune system against cancer and infections in the United States and internationally. It offers Retrocyte Display, an antibody expression platform for the identification of fully human and humanized monoclonal antibodies; and display technologies. It develops QS-21 Stimulon adjuvant, a saponin-based vaccine adjuvant. The company also develops Balstilimab, a programmed death receptor-1 (PD-1) blocking antibody; AGEN1181, a human Fc-enhanced cytotoxic T-lymphocyte antigen 4 (CTLA-4) blocking antibody that is in Phase 2 trials in metastatic colorectal cancer (mCRC), pancreatic cancer, and melanoma; AGEN2373, a CD137 monospecific antibody that is in Phase 1b clinical trial; AGEN1423, a CD73/TGFß TRAP antibody; AGEN1571, an ILT2 monospecific antibody that is in clinical development; and BMS-986442, a TIGIT bispecific antibodies.