X0306 4 2018-04-02 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 Senior VP, General Counsel Stock Option (Right to Buy) 145.77 2018-04-02 4 A false 31500.00 0.00 A 2028-04-02 Common Stock 31500.00 31500.00 D The securities awarded on 4/2/2018 were in the form of stock options issued pursuant to the Sage Therapeutics, Inc. 2014 Stock Option and Incentive Plan. Options to purchase 3,938 shares of common stock shall vest on the one year anniversary of the 2/1/2018 Vesting Start Date with 11,812 shares vesting in 36 equal monthly installments thereafter. Options to purchase 15,750 shares of common stock shall vest periodically upon the Company achieving certain milestones.. /s/ Anne Marie Cook 2018-04-04