Alkermes plc and Amneal Pharmaceuticals LLC terminated their Authorized Generic Product Supply Agreement dated September 9, 2025, regarding the distribution of an authorized generic version of VIVITROL in the United States. Amneal notified the Company after a failure to meet certain terms, which the Company did not incur any penalties for. Alkermes plc is a biopharmaceutical company focused on the development and commercialization of central nervous system and CNS-related products.