NEW YORK, Aug. 03, 2024 (GLOBE NEWSWIRE) -- WHY: Rosen Law Firm, a global investor rights law firm, announces the filing of a class action lawsuit on behalf of purchasers of stock or sellers of puts of MacroGenics, Inc. (NASDAQ: MGNX) between March 7, 2024 and May 9, 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 September 24, 2024. SO WHAT: If you purchased stock or sold puts of M ...