Immunome, Inc., a biotechnology company, develops targeted cancer therapies. The company's clinical asset comprises AL102, an investigational gamma secretase inhibitor currently in evaluation in a Phase 3 trial for the treatment of desmoid tumors; and preclinical assets consist of IM-1021, a receptor tyrosine kinase-like orphan receptor 1 and antibody-drug conjugates, as well as IM-3050, a fibroblast activation protein targeted radioligand therapy; and IM-4320, an anti-IL-38 immunotherapy candidate. Immunome, Inc. was incorporated in 2006 and is based in Bothell, Washington.

Acelyrin, Inc., a clinical biopharma company, focuses on identifying, acquiring, and accelerating the development and commercialization of transformative medicines. The company's lead product candidate is izokibep, a small protein therapeutic designed to inhibit IL-17A with high potency, which is in Phase 3 clinical trials for use in the treatment of Hidradenitis Suppurativa, Psoriatic Arthritis, and uveitis, as well as in Phase 2 clinical trials for use in the treatment of Axial Spondyloarthritis. It is also developing lonigutamab, a humanized immunoglobulin G1 (IgG1) monoclonal antibody which is in Phase 1 clinical trials for use in the treatment of thyroid eye disease. In addition, the company's develops SLRN-517, a fully human IgG1 monoclonal antibody targeting c-KIT, which is in preclinical stage for use in the treatment of chronic urticaria. Acelyrin, Inc. was incorporated in 2020 and is headquartered in Agoura Hills, California.

Alumis Inc., a clinical stage biopharmaceutical company, focuses on the development and commercialization of medicines for autoimmune disorders. It develops ESK-001, an allosteric tyrosine kinase 2 (TYK2) inhibitor for the treatment of plaque psoriasis, systemic lupus erythematosus, and non-infectious uveitis; and A-005, a central nervous system-penetrant allosteric TYK2 inhibitor for neuroinflammatory and neurodegenerative diseases. The company was formerly known as Esker Therapeutics, Inc. and changed its name to Alumis Inc. in January 2022. The company was incorporated in 2021 and is headquartered in South San Francisco, California.

Aclaris Therapeutics, Inc. a clinical-stage biopharmaceutical company, engages in the development of novel drug candidates for immune-inflammatory diseases in the United States. The company operates through two segments, Therapeutics and Contract Research. The Therapeutics segment is involved in identifying and developing therapies to address significant unmet needs for immuno-inflammatory diseases. The Contract Research segment provides laboratory services. It develops Zunsemetinib (ATI-450), an MK2 inhibitor which is under Phase 1b/2 trials for the treatment of metastatic breast and pancreatic cancer; ATI-1777, a soft JAK 1/3 inhibitor, completed Phase 2b trails for the treatment of moderate to severe atopic dermatitis and other dermatologic conditions; and ATI-2138, an oral covalent inhibitor of ITK and JAK3 inhibitor under Phase 1 trials as a treatment for T cell-mediated autoimmune diseases. The company was incorporated in 2012 and is headquartered in Wayne, Pennsylvania.

Kyverna Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on developing cell therapies for patients suffering from autoimmune diseases. Its lead product candidate is KYV-101, an autologous CD19 CAR T-cell product candidate for the treatment of patients with lupus nephritis and systemic sclerosis that is in Phase I clinical trial; and for myasthenia gravis and multiple sclerosis that is in Phase II clinical trial. The company is also developing KYV-201, an allogeneic CD19 CAR T-cell product candidate that is in preclinical stage to treat multiple autoimmune diseases. In addition, it is developing product candidates to treat other autoimmune diseases, such as inflammatory bowel disease that includes Crohn's disease and ulcerative colitis. Kyverna Therapeutics, Inc. has a license and collaboration agreement with Intellia Therapeutics, Inc. to research and develop an allogeneic CD19-directed CAR cell therapy product; and with Kite to research and develop programs for the treatment, diagnosis, and prevention of autoimmune, inflammatory, and allogeneic stem cell transplant inflammatory diseases. The company was formerly known as BAIT Therapeutics, Inc. and changed its name to Kyverna Therapeutics, Inc. in October 2019. Kyverna Therapeutics, Inc. was incorporated in 2018 and is headquartered in Emeryville, California.

Artiva Biotherapeutics, Inc., a clinical-stage biotechnology company, focuses on developing natural killer (NK) cell-based therapies for patients suffering from autoimmune diseases and cancers. The company's lead product candidate is AB-101, an off-the-shelf NK cell therapy for patients with autoimmune diseases and cancers, such as lupus nephritis, rheumatoid arthritis, pemphigus vulgaris, the anti-neutrophil cytoplasmic antibody-associated vasculitis subtypes granulomatosis with polyangiitis/microscopic polyangiitis, systemic lupus erythematosus, and B-cell-non-Hodgkin lymphoma. It also develops AB-201, an allogeneic anti- human epidermal growth factor receptor 2 chimeric antigen receptor (CAR)-NK cell product candidate; and AB-205, an allogeneic anti-CD5 CAR-NK cell product candidate. The company was incorporated in 2019 and is headquartered in San Diego, California.

Equillium, Inc., a clinical-stage biotechnology company, develops and sells products to treat severe autoimmune and inflammatory, or immuno-inflammatory disorders with unmet medical need. The company's lead product candidate is itolizumab (EQ001), a first-in-class monoclonal antibody that targets the immune checkpoint receptor CD6, which is in Phase III clinical trials for the treatment of acute graft-versus-host disease; completed Phase I clinical trial for the treatment of ulcerative colitis; and Phase I clinical trial for the treatment of lupus nephritis. It also develops EQ101 completed phase 1/2 for treatment of cutaneous T cell lymphoma and alopecia areata; and EQ302 to treat gastrointestinal indications. In addition, it serves dermatology, gastroenterology, rheumatology, hematology, transplant science, oncology, and pulmonology area. Equillium, Inc. has a research collaboration agreement with Vivtex Corporation to develop GI-targeted formulations for Bi-specific peptide therapy. The company was formerly known as Attenuate Biopharmaceuticals, Inc. and changed its name to Equillium, Inc. in May 2017. Equillium, Inc. was incorporated in 2017 and is headquartered in La Jolla, California.

Aptevo Therapeutics Inc., a clinical-stage research and development biotechnology company, focuses on developing immunotherapeutic candidates for the treatment of various forms of cancer in the United States. It develops its products using ADAPTIR and ADAPTIR-FLEX platforms to generate monospecific, bispecific, and multi-specific antibody candidates capable of enhancing the human immune system against cancer cells. The company's lead clinical blood cancer candidate is APVO436 that is in Phase 1b/2 clinical trial for acute myelogenous leukemia. It is also developing ALG.APV-527, a novel investigational bispecific ADAPTIR candidate that is in Phase 1 clinical trial for NSCLC, head and neck, colorectal, pancreatic, breast, and other solid tumors; APVO603, a preclinical dual agonist bispecific ADAPTIR candidate for multiple solid tumors; APVO442, a novel bispecific candidate based on the ADAPTIR-FLEX platform technology for multiple solid tumors; and APVO711, a preclinical dual mechanism bispecific ADAPTIR candidate for prostate cancer. The company has a collaboration and option agreement with Alligator Bioscience AB to develop ALG.APV-527. Aptevo Therapeutics Inc. was incorporated in 2016 and is headquartered in Seattle, Washington.