Alkermes plc Ordinary Shares, also called Alkermes, is a biopharmaceutical company, which engages in the development, research, and commercialization of medicines that are designed to address unmet medical needs of patients in major therapeutic areas. Its products include Aristada, which is used for the treatment of schizophrenia in adults; and Vivitrol, which is an injectable medication for the treatment of alcohol dependence and for the prevention of relapse to opioid dependence, following opioid detoxification. Read More The company was founded on May 4, 2011 and is headquartered in Dublin, Ireland.