X0306 4 2019-06-21 false 0001597553 Sage Therapeutics, Inc. SAGE 0001320559 Cook Anne Marie C/O SAGE THERAPEUTICS, INC. 215 FIRST STREET CAMBRIDGE MA 02142 false true false false SVP, GC & Secretary Stock Option (Right to Buy) 47.70 2019-06-21 4 A false 9240.00 0.00 A 2027-02-06 Common Stock 9240.00 18480.00 D On February 6, 2017, the reporting person was granted an option to purchase 28,000 shares of common stock. The option vests upon the achievement of certain milestones, one of which was met on June 21, 2019, resulting in the vesting of the option as to 9,240 shares. Senior Vice President, General Counsel & Secretary /s/ Anne Marie Cook 2019-06-25