X0306 4 2017-05-01 false 0001597553 Sage Therapeutics, Inc. SAGE 0001704336 Cloonan Michael C/O SAGE THERAPEUTICS, INC. 215 FIRST STREET CAMBRIDGE MA 02142 false true false false Chief Business Officer Stock Option (Right to Buy) 73.43 2017-05-01 4 A false 185000.00 0.00 A 2027-05-01 Common Stock 185000.00 185000.00 D The securities awarded on 5/01/2017 were in the form of stock options issued pursuant to the Sage Therapeutics, Inc. 2016 Inducement Equity Plan. Options to purchase 46,250 shares of common stock shall vest on the one year anniversary starting from April 24, 2017 with 138,750 shares vesting in 36 equal monthly installments thereafter. /s/ Anne Marie Cook, as Attorney-in-Fact for Michael Cloonan 2017-05-04