EXPLANATORY NOTE
This Registration Statement on Form S-8 registers additional shares of common stock, par value $0.0001 per share (“Common Stock”), issuable under the Sage Therapeutics, Inc. (the “Registrant”) 2014 Stock Option and Incentive Plan, as amended (the “Plan”). The number of shares of Common Stock reserved and available for issuance under the Plan is subject to an automatic annual increase on each January 1 by an amount equal to four percent of the number of shares of Common Stock issued and outstanding on the immediately preceding December 31 or such lesser number of shares of Common Stock as determined by the Administrator (as defined in the Plan). Accordingly, on January 1, 2023, the number of shares of Common Stock reserved and available for issuance under the Plan increased by 2,380,365 shares. This Registration Statement registers these additional 2,380,365 shares of Common Stock. The additional shares are of the same class as other securities relating to the Plan for which a registration statement on Form S-8 has previously been filed and is effective. The information contained in the following registration statements filed on Form S-8 by the Registrant is hereby incorporated by reference pursuant to General Instruction E, except in each case with respect to “Item 8. Exhibits” thereof:
1) Registration Statement on Form S-8 (Registration No. 333-197498) filed on July 18, 2014;
2) Registration Statement on Form S-8 (Registration No. 333-204549) filed on May 29, 2015;
3) Registration Statement on Form S-8 (Registration No. 333-209831) filed on February 29, 2016;
4) Registration Statement on Form S-8 (Registration No. 333-216202) filed on February 23, 2017;
5) Registration Statement on Form S-8 (Registration No. 333-223146) filed on February 22, 2018;
6) Registration Statement on Form S-8 (Registration No. 333-229732) filed on February 19, 2019;
7) Registration Statement on Form S-8 (Registration No. 333-236680) filed on February 27, 2020;
8) Registration Statement on Form S-8 (Registration No. 333-253431) filed on February 24, 2021; and
9) Registration Statement on Form S-8 (Registration No. 333-262948) filed on February 24, 2022.