NEW YORK, Aug. 31, 2024 /PRNewswire/ -- Rosen Law Firm, a global investor rights law firm, announces the filing of a class action lawsuit on behalf of purchasers of securities of Sage Therapeutics, Inc. (NASDAQ: SAGE) between April 12, 2021 and July 23, 2024, both dates inclusive (the "Class Period"). A class action lawsuit has already been filed. If you wish to serve as lead plaintiff, you must move the Court no later than October 28, 2024.So What: If you purchased Sage securities during the Class Period y ...