Syndax Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops therapies for the treatment of cancer. Its lead product candidates are revumenib, a potent, selective, small molecule inhibitor of the menin-MLL binding interaction for the treatment of KMT2A rearranged, acute leukemias, and solid tumor; and SNDX-6352 or axatilimab, a monoclonal antibody that blocks the colony stimulating factor 1, or CSF-1 receptor for the treatment of patients with chronic graft versus host disease (cGVHD) and idiopathic pulmonary fibrosis (IPF). The company is also developing Entinostat. It has an agreement with Eddingpharm International Company Limited for licensing, development, and commercialization of Entinostat. Syndax Pharmaceuticals, Inc. was incorporated in 2005 and is headquartered in Waltham, Massachusetts.

Xencor, Inc., a clinical stage biopharmaceutical company, focuses on the discovery and development of engineered monoclonal antibody and cytokine therapeutics to treat patients with cancer and autoimmune diseases. The company provides Sotrovimab that targets the SARS-CoV-2 virus; Ultomiris for the treatment of patients with paroxysmal nocturnal hemoglobinuria and atypical hemolytic uremic syndrome; and Monjuvi for the treatment of patients with relapsed or refractory diffuse large B-cell lymphoma. It develops Plamotamab, a bispecific antibody, which is in Phase I clinical trial to treat non-Hodgkin lymphoma; Vudalimab, a bispecific antibody, which is in Phase II clinical trial to treat metastatic castration-resistant prostate cancer and other solid tumor types. The company is also developing XmAb306, which is in Phase I clinical trial to treat solid tumors; XmAb104, which is in Phase II clinical trial to treat patients with selected solid tumors; XmAb564 that is in Phase Ia clinical trial to treat autoimmune diseases; AMG 509, which is in Phase I clinical trial to treat prostate cancer; XmAb819 for patients with renal cell carcinoma; XmAb541 for the treatment of ovarian cancer; and XmAb662 which is in Phase I clinical trial to treat patients with solid tumors. In addition, the company develops VIR-3434, which is in Phase II clinical trial for patients with hepatitis B virus infection; and VIR-2482 that is in Phase 2 clinical trial to trat hepatitis B virus. The company develops AIMab7195 to reduce blood serum levels of IgE that mediates allergic responses and allergic disease; Obexelimab to treat autoimmune disease; and Xpro1595 to treat patients with Alzheimer's disease, and depression. It has a license agreement with Caris Life Sciences. Xencor, Inc. was incorporated in 1997 and is headquartered in Pasadena, California.

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.

C4 Therapeutics, Inc., a clinical-stage biopharmaceutical company, develops novel therapeutic candidates to degrade disease-causing proteins for the treatment of cancer, neurodegenerative conditions, and other diseases. Its lead product candidate is CFT7455, an orally bioavailable MonoDAC degrader of protein that is in Phase 1/2 trial targeting IKZF1 and IKZF3 for multiple myeloma and non-Hodgkin lymphomas, including peripheral T-cell lymphoma and mantle cell lymphoma, currently under Phase 1/2 clinical trials. The company is also developing CFT1946, an orally bioavailable BiDAC degrader targeting V600X mutant BRAF to treat melanoma, non-small cell lung cancer (NSCLC), colorectal cancer, and other solid malignancies, currently under Phase 1/2 clinical trials; and CFT8919, an orally bioavailable, allosteric, and mutant-selective BiDAC degrader of epidermal growth factor receptor, or EGFR, with an L858R mutation in NSCLC. It has strategic collaborations with F. Hoffmann-La Roche Ltd and Hoffmann-La Roche Inc.; Biogen MA, Inc.; Betta Pharmaceuticals, Co., Ltd.; and Merck Sharp & Dohme, LLC, as well as Calico Life Sciences LLC. The company was incorporated in 2015 and is headquartered in Watertown, Massachusetts.

Mustang Bio, Inc., a clinical-stage biopharmaceutical company, focuses on translating medical breakthroughs in cell and gene therapies into potential cures for hematologic cancers, solid tumors, and rare genetic diseases. Its pipeline focuses on gene therapy programs for rare genetic disorders, chimeric antigen receptor (CAR) engineered T cell (CAR T) therapies for hematologic malignancies, and CAR T therapies for solid tumors. The company develops MB-117 and MB-217, a gene therapy program for X-linked severe combined immunodeficiency, a rare genetic immune system condition in which affected patients do not live beyond infancy without treatment. The company also develops MB-106 CAR T cell program for B cell non-hodgkin lymphoma and chronic lymphocytic leukemia; MB-101 CAR T cell program for glioblastoma; MB-108, a next-generation oncolytic herpes simplex virus. It has license agreements with Nationwide Children's Hospital, CSL Behring; Mayo Clinic; Leiden University Medical Centre; SIRION Biotech GmbH. The company was incorporated in 2015 and is headquartered in Worcester, Massachusetts. Avenue Mustang Bio, Inc. is a subsidiary of Fortress Biotech, Inc.

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.

Xenetic Biosciences, Inc., a biopharmaceutical company, focuses on advancing immune-oncology technologies for hard to treat cancers. The company's proprietary DNase platform is designed to improve outcomes of existing treatments, including immunotherapies, by targeting neutrophil extracellular traps (NETs), which have been implicated in cancer progression and resistance to cancer treatments that targets pancreatic cancer comprising pancreatic ductal adenocarcinoma, colorectal carcinoma, and other gastrointestinal cancer. Its product pipeline includes XBIO-015 for treating pancreatic carcinoma and solid tumors; and XBIO-020 for treating solid tumors. The company also has partnered with biotechnology and pharmaceutical companies to develop its proprietary drug delivery platform, PolyXen, which as an enabling platform technology for protein and peptide drug delivery. It has collaboration agreements with Belgian Volition SARL Limited to develop NETs-targeted adoptive cell therapies for the treatment of cancer, as well as PJSC Pharmsynthez and Serum Institute of India to develop and launch ErepoXen for the treatment of anemia in chronic kidney disease patients; sublicensing agreement with Takeda Pharmaceutical Co. Ltd; exclusive sublicense agreement with CLS Therapeutics Ltd to develop and commercialize pharmaceutical products and methods incorporating DNase enzyme for use in treatment of cancer; and exclusive license agreement with CLS Therapeutics Ltd to develop and commercialize pharmaceutical products and methods incorporating DNase in conjunction with CAR T therapies. Xenetic Biosciences, Inc. is headquartered in Framingham, Massachusetts.