ROSEN, SKILLED INVESTOR COUNSEL, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA

New York, New York--(Newsfile Corp. - March 27, 2026) - WHY: Rosen Law Firm, a global investor rights law firm, announces a class action lawsuit on behalf of purchasers of securities of Atara Biotherapeutics, Inc. (NASDAQ: ATRA) between May 20, 2024 and January 9, 2026, 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 May 22, 2026.SO WHAT: If you purchased Atara securities during the Class Period you ...