Exhibit 99.1 Sage Therapeutics Announces First Quarter 2024 Financial Results and Highlights Pipeline and Business Progress Achieved $6.2 million in ZURZUVAE™ (zuranolone) collaboration revenue during the first quarter of 2024, representing 50% of the net revenues reported by Biogen Encouraging initial demand for ZURZUVAE; More than 700 prescriptions shipped and delivered in the first quarter of 2024 Payor coverage now in place for a majority of commercially covered lives for ZURZUVAE in the treatment of wo ...