Marinus Pharmaceuticals, Inc. is a biopharmaceutical company, which engages in the development and commercialization of neuropsychiatric therapeutics. Its clinical stage drug product candidate, ganaxolone, is a positive allosteric modulator being developed in three different dose forms: intravenous, capsule, and liquid. The company was founded in August 2003 and is headquartered in Radnor, PA.