X0306 4 2016-12-08 false 0001597553 Sage Therapeutics, Inc. SAGE 0001304815 IGUCHI KIMI C/O SAGE THERAPEUTICS, INC. 215 FIRST STREET CAMBRIDGE MA 02142 false true false false CFO, Secretary and Treasurer Stock Option (Right to Buy) 38.25 2016-12-08 4 A false 14400.00 0.00 A 2016-12-08 2025-01-23 Common Stock 14400.00 68000.00 D The securities awarded on 1/23/2015 were in the form of stock options issued pursuant to the Sage Therapeutics, Inc. 2014 Stock Option and Incentive Plan. Options to purchase 5,000 shares of common stock vested on the one year anniversary of the Vesting Start Date with 15,000 shares vesting in 36 equal monthly installments thereafter. Options to purchase 48,000 shares of common stock vest periodically over four years from the grant date upon the company reaching certain milestone requirements, of which the performance criteria were met with the respect of 14,400 shares. /s/ Anne Marie Cook, as Attorney-in-Fact for Kimi Iguchi 2016-12-14