X0508 4 2024-11-01 false 0001597553 Sage Therapeutics, Inc. SAGE 0002041689 Shiferman Gregory L. C/O SAGE THERAPEUTICS, INC. 55 CAMBRIDGE PARKWAY CAMBRIDGE MA 02142 false true false false See Remarks false Common Stock 2024-11-01 4 A false 5000.00 0.00 A 19967.00 D Stock Option (Right to buy) 6.05 2024-11-01 4 A false 10000.00 0.00 A 2034-10-31 Common Stock 10000.00 10000.00 D Consists of shares of Common Stock issuable under 5,000 restricted stock units ("RSUs") awarded to the Reporting Person pursuant to the Sage Therapeutics, Inc. 2024 Equity Incentive Plan (the "Plan"). Each RSU represents the right to receive one share of Common Stock upon vesting. These RSUs are scheduled to vest in equal annual installments over four years with the first installment vesting on November 1, 2025, subject to the Reporting Person's continued service. The option was granted on November 1, 2024, pursuant to the Plan. The shares underlying the option vest over four years, with 25% of the shares vesting on November 1, 2025, and the remainder vesting in equal monthly installments thereafter, subject to the Reporting Person's continued service. Senior Vice President, General Counsel and Secretary Brandon Marsh, attorney in fact for Gregory Shiferman 2024-11-01