ATRA INVESTOR ALERT: Levi & Korsinsky, LLP Reminds Investors of an Investigation Involving Possible Securities Fraud Violations by Certain Officers and Directors of Atara Biotherapeutics, Inc.

New York, New York--(Newsfile Corp. - July 27, 2022) - Levi & Korsinsky notifies investors that it has commenced an investigation of Atara Biotherapeutics, Inc. ("Atara" or the "Company") (NASDAQ: ATRA) concerning possible violations of federal securities laws.