Aptorum Group Limited, through its subsidiaries, operates as a clinical stage biopharmaceutical company that engages in the discovery, development, and commercialization of therapeutic products for the treatment of oncology and infectious diseases. The company operates in the Therapeutics and Non-Therapeutics segments. Its pipeline products include SACT- 1 for neuroblastoma and other cancer types; SACT-COV19 for the treatment of coronavirus disease; ALS-4 to treat bacterial infections caused by staphylococcus aureus, including MRSA; ALS-1 to treat viral infections caused by influenza virus A; and ALS-2/3 for the treatment of gram+ve bacterial infections. The company is also developing RPIDD, a pathogen molecular diagnostic; NativusWell DOI (NLS-2), a dietary supplement; NLS-1 for the treatment of endometriosis; DLS-1+2 to treat NSCLC with mutation; DLS-3, an autoimmune small molecule; and CLS-1 for the treatment of obesity. Its pipeline products enable the discovery of new therapeutics assets, such as systematic screening of existing approved drug molecules, and microbiome-based research platforms for treatment of metabolic diseases. The company also focuses on therapeutic and diagnostic projects in neurology, gastroenterology, metabolic disorders, and other disease areas. In addition, it is involved in the operation of medical clinics. The company was formerly known as APTUS Holdings Limited and changed its name to Aptorum Group Limited in October 2017. Aptorum Group Limited was incorporated in 2010 and is headquartered in London, the United Kingdom.