Compass Therapeutics, Inc., a clinical-stage oncology-focused biopharmaceutical company, engages in developing antibody-based therapeutics to treat various human diseases in the United States. The company's lead product candidates include CTX-009, a bispecific antibody that blocks Delta-like ligand 4 a ligand of Notch-1, and vascular endothelial growth factor A signaling pathways, which are critical to angiogenesis and tumor vascularization; and CTX-471, an IgG4 monoclonal antibody that is an agonist of CD137, a key co-stimulatory receptor on immune cells. It also develops CTX-8371, a bispecific inhibitor that targets PD-1 and PD-L1 checkpoint inhibitor antibodies. The company was founded in 2014 and is headquartered in Boston, Massachusetts.

Checkpoint Therapeutics, Inc., a clinical-stage immunotherapy and targeted oncology company, focuses on the acquisition, development, and commercialization of novel treatments for patients with solid tumor cancers in the United States and internationally. The company's lead antibody product candidate is Cosibelimab, which is in Phase 1 clinical trial to treat patients with selected recurrent or metastatic cancers; and CK-302, a product candidate in preclinical trials for hematological malignancies and solid tumors. It is developing Olafertinib, which is in Phase 3 clinical trials for the treatment of adult patients with metastatic non-small cell lung cancer; CK-103 for the treatment of various advanced and metastatic solid tumor cancers; and Anti-Carbonic Anhydrase IX (CAIX) antibody, a product candidate in preclinical trials to recognize CAIX expressing cells and kill them via antibody-dependent cellular cytotoxicity and complement-dependent cytotoxicity. The company has licensing and collaboration agreements with Adimab, LLC for the development of Cosibelimab; NeuPharma, Inc., to develop and commercialize Olafertinib; and Jubilant Biosys Limited for the development and commercialization of novel compounds that inhibit BET bromodomains, as well as collaboration with GC Cell. The company was incorporated in 2014 and is based in Waltham, Massachusetts. Checkpoint Therapeutics, Inc. is a subsidiary of Fortress Biotech, Inc.

Agenus Inc., a clinical-stage biotechnology company, discovers and develops immuno-oncology products in the United States and internationally. The company 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, an anti-PD-1 antagonist that has completed Phase II clinical trial to treat second line cervical cancer; AGEN1181, an antigen 4 (CTLA-4) blocking antibody that is in Phase 2 clinical trial for the treatment of pancreatic cancer and 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 Phase 1 clinical trial; and BMS-986442, a TIGIT bispecific antibodies. In addition, it develops INCAGN1876, a GITR agonist; INCAGN2390, a TIM-3 monospecific antibody; INCAGN2385, a LAG-3 monospecific antibody; MK-4830, a monospecific antibody targeting ILT4 that is in Phase 2 clinical trial; UGN-301, a zalifrelimab intravesical solution for the treatment of cancers of the urinary tract that is in a Phase 1 clinical trial; and AGEN1884, a first-generation anti-CTLA-4 monospecific antibody. The company operates under Agenus, MiNK, Prophage, Retrocyte Display, and Stimulon trademarks. It has collaborations with Bristol-Myers Squibb Company, Betta Pharmaceuticals Co., Ltd., Incyte Corporation, Merck Sharpe & Dohme, and Gilead Sciences, Inc. The company was formerly known as Antigenics Inc. and changed its name to Agenus Inc. in January 2011. Agenus Inc. was founded in 1994 and is headquartered in Lexington, Massachusetts.

Adagene Inc., a clinical stage biotechnology company, engages in the research, development, and production of monoclonal antibody drugs for cancers. The company's product candidates include ADG106, a human ligand-blocking agonistic anti- CD137 IgG4 monoclonal antibodies (mAbs) that is in Phase 1b/2 clinical trials for the treatment advanced solid tumors and non-Hodgkin's lymphoma; ADG126, a masked fully-human anti-CTLA-4 mAb that is in Phase 1 clinical trial for the treatment advanced/metastatic solid tumors; and ADG116, a human ligand-blocking anti-CTLA-4 mAb, which is in Phase 1b/2 clinical development for the treatment of advanced/metastatic solid tumors. It also offers ADG104, an anti-PD-L1 mAb that is in Phase 2 clinical development; ADG125, a novel anti-CSF-1R mAb, which is in Phase I clinical trial; ADG206, a masked, Fc engineered anti-CD137 agonistic POWERbody; ADG153, a masked anti-CD47 IgG1 SAFEbody, which is in preclinical for the treatment hematologic and solid tumors; ADG138, novel HER2xCD3 POWERbody, which is in preclinical for the treatment HER2-expressing solid tumors; and ADG152, a v POWERbody, which is in preclinical stage for the treatment off-tumor toxicities, as well as develops anti-CD28 bispecific POWERbody TCEs. The company was incorporated in 2011 and is headquartered in Suzhou, China.

Pyxis Oncology, Inc., a clinical stage company, engages in the development of therapeutics to treat cancers. Its lead antibody-drug conjugates (ADC) product candidate is PYX-201, an investigational novel ADC consisting of human immunoglobulin G1 (IgG1), which is in Phase 1 clinical trial to treat patients with relapsed or refractory solid tumors; and lead immuno-oncology (IO) product candidate is PYX-106, an investigational fully human IgG1 Siglec-15-targeting antibody that is in Phase 1 clinical trial to treat patients with advanced solid tumors. The company is also developing PYX-107, a CD40 agonist with demonstrated anti-cancer activity in patients who previously progressed on PD-(L)1 inhibitors, which is in Phase 2 clinical trial for the treatment of solid tumors, such as soft tissue sarcomas, esophageal and gastroesophageal junction, cancers, and melanoma in combination with chemotherapy, radiation therapy, and immunotherapy. It has in-license agreement with Pfizer Inc. to develop and commercialize ADC product candidates directed to certain licensed targets, including PYX-201 and PYX-203, and products containing the ADC product candidates; and Biosion USA, Inc. for development, manufacture, and commercialization of PYX-106, an IO product candidate. Pyxis Oncology, Inc. was incorporated in 2018 and is headquartered in Boston, Massachusetts.

Adicet Bio, Inc., a clinical stage biotechnology company, discovers and develops allogeneic gamma delta T cell therapies for autoimmune diseases and cancer. The company offers gamma delta T cells engineered with chimeric antigen receptors (CARs) to facilitate durable activity in patients. Its lead product candidate is ADI-001, an allogeneic gamma delta T cell therapy expressing a CAR targeting CD20, which is in Phase I clinical trial for the treatment of autoimmune diseases and relapsed or refractory aggressive B cell non-Hodgkin's lymphoma. The company is also developing ADI-270, an armored gamma delta CAR T cell product candidate targeting renal cell carcinoma for treating other CD70+ solid tumor and hematological malignancies indications. The company was founded in 2014 and is based in Boston, Massachusetts.

Werewolf Therapeutics, Inc., a biopharmaceutical company, develops therapeutics engineered to stimulate the body's immune system for the treatment of cancer. The company, through its proprietary PREDATOR platform, designs conditionally activated molecules that stimulate adaptive and innate immunity for addressing the limitations of conventional proinflammatory immune therapies. Its lead product candidates are WTX-124, a conditionally activated Interleukin-2 INDUKINE molecule that is in Phase I/Ib clinical trial for the treatment of advanced or metastatic solid tumors; and WTX-330, a conditionally activated Interleukin-12 INDUKINE molecule, which is in Phase I clinical trial for the treatment of advanced or metastatic solid tumors and lymphoma. The company is also developing JZP898, a conditionally activated interferon alpha INDUKINE molecule for the treatment of cancer; and WTX-712, an activated Interleukin-21(IL-21) and WTX-518, an activated IL-18 (IL-18) INDUKINE molecule for the treatment of cancer. Werewolf Therapeutics, Inc. was incorporated in 2017 and is headquartered in Watertown, Massachusetts.

Xilio Therapeutics, Inc., a clinical-stage biotechnology company, engages in the discovery and development of tumor-activated immuno-oncology therapies. The company's checkpoint inhibitor program includes XTX101, an investigational Fc-enhanced, tumor-activated anti-CTLA-4 mAb that is in Phase 2 clinical trial for patients with advanced solid tumors. It also develops cytokine programs, which comprises XTX202, a tumor-activated beta-gamma biased IL-2, currently under Phase 2 clinal trials; and XTX301, an investigational tumor-activated, engineered IL-12 molecule, currently under Phase 1 studies. The company was founded in 2016 and is headquartered in Waltham, Massachusetts.