X0508 4 2025-01-16 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 2025-01-16 4 A false 14000.00 0.00 A 33888.00 D Stock Option (Right to buy) 6.97 2025-01-16 4 A false 28000.00 0.00 A 2035-01-16 Common Stock 28000.00 28000.00 D Consists of shares of common stock issuable under 14,000 restricted stock units ("RSUs"). 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 January 16, 2026. The securities awarded on January 16, 2025 were in the form of stock options issued pursuant to the Sage Therapeutics, Inc. 2024 Equity Incentive Plan. Options to purchase 7,000 shares of common stock shall vest on the one year anniversary of January 16, 2025, with 21,000 shares vesting in 36 equal monthly installments thereafter. Senior Vice President, General Counsel and Secretary Brandon Marsh, attorney in fact for Gregory Shiferman 2025-01-21