Catalyst Pharmaceuticals, Inc. Common Stock, also called Catalyst Pharmaceuticals, is a biopharmaceutical company, which engages in the development and commercialization of therapies for people with rare debilitating, chronic neuromuscular, and neurological diseases, including Lambert-Eaton myasthenic syndrome (LEMS), congenital myasthenic syndromes (CMS), MuSK antibody positive myasthenia gravis, spinal muscular atrophy (SMA) type 3, and infantile spasms. Read More The company was founded by Huckel E. Hubert and Patrick J. McEnany in January 2002 and is headquartered in Coral Gables, FL.