SAB Biotherapeutics, Inc., a clinical-stage biopharmaceutical company, engages in the development of immunotherapies based on human antibodies. It has applied advanced genetic engineering and antibody science to develop transchromosomic bovine herds that produce fully human antibodies targeted at infectious diseases and immune and autoimmune disorders, including infectious diseases, influenza, CDI, type 1 diabetes, organ transplantation, and oncology, as well as immunology, gastroenterology, and respiratory diseases. The company also uses its DiversitAb immunotherapy platform to produce fully-human polyclonal antibodies without the need for human donors or plasma. In addition, its lead product candidates include SAB-185, a fully-human polyclonal antibody therapeutic candidate that is in Phase III clinical trial for the treatment of COVID-19; and SAB-176, a fully-human polyclonal antibody therapeutic candidate that is in development for the treatment or prevention of severe influenza. Further, the company's pre-clinical product candidates in development for autoimmune diseases include SAB-142 for type 1 diabetes and organ transplant induction/rejection. SAB Biotherapeutics, Inc. was founded in 2014 and is headquartered in Sioux Falls, South Dakota.