ATRA

THOUSAND OAKS, Calif.--(BUSINESS WIRE)--Atara Biotherapeutics, Inc. (Nasdaq: ATRA), a leader in T-cell immunotherapy, leveraging its novel allogeneic Epstein-Barr virus (EBV) T-cell platform to develop transformative therapies for patients with cancer and autoimmune diseases, today announced the departure of Carol Gallagher, Pharm D from its Board of Directors. “On behalf of Atara and its Board of Directors, I want to express my gratitude to Carol for her dedication to our company and its share.

CHICAGO, June 11, 2026 (GLOBE NEWSWIRE) -- Quetzal Therapeutics, a biopharmaceutical company focused on developing therapies for rare hematologic malignancies, today announced that the first patient has been dosed in QUATRO-APL, the company's global Phase 3 clinical trial evaluating QTX-2101, an investigational oral capsule formulation of arsenic trioxide, in combination with all-trans retinoic acid (ATRA), for the treatment of patients with newly diagnosed, low-risk Acute Promyelocytic Leukemia, or APL.

NEW YORK, May 26, 2026 /PRNewswire/ -- The Gross Law Firm issues the following notice to shareholders of Atara Biotherapeutics, Inc. (NASDAQ: ATRA). Shareholders who purchased shares of ATRA during the class period listed are encouraged to contact the firm regarding possible lead plaintiff appointment.

New York, New York--(Newsfile Corp. - May 22, 2026) - Bronstein, Gewirtz & Grossman, LLC, a nationally recognized investor-rights law firm, announces that a class action lawsuit has been filed against Atara Biotherapeutics, Inc. (NASDAQ: ATRA) and certain of its officers. This lawsuit seeks to recover damages against Defendants for alleged violations of the federal securities laws on behalf of all persons and entities that purchased or otherwise acquired Atara securities between May 20, 2024 and January 9, 2026, both dates inclusive (the "Class Period").

LOS ANGELES, May 22, 2026 /PRNewswire/ -- Glancy Prongay Wolke & Rotter LLP announces that investors with losses have opportunity to lead the securities fraud class action lawsuit against Atara Biotherapeutics, Inc. ("Atara" or the "Company") (NASDAQ: ATRA). IF YOU SUFFERED A LOSS ON YOUR ATARA BIOTHERAPEUTICS  INVESTMENTS, CLICK  HERE BEFORE MAY 22, 2026 (LEAD PLAINTIFF DEADLINE) TO PARTICIPATE IN THE SECURITIES FRAUD LAWSUIT What Is The Lawsuit About?

NEW YORK, May 22, 2026 (GLOBE NEWSWIRE) -- WHY: Rosen Law Firm, a global investor rights law firm, reminds purchasers of securities of Atara Biotherapeutics, Inc. (NASDAQ: ATRA) between May 20, 2024 and January 9, 2026, inclusive (the “Class Period”), of the important May 22, 2026 lead plaintiff deadline.

NEW YORK--(BUSINESS WIRE)---- $ATRA #ATRA--Faruqi & Faruqi, LLP, a leading national securities law firm, is investigating potential claims against Atara Biotherapeutics, Inc. (“Atara” or the “Company”) (NASDAQ: ATRA) and reminds investors of the May 22, 2026 deadline to seek the role of lead plaintiff in a federal securities class action that has been filed against the Company. Faruqi & Faruqi is a leading national securities law firm with offices in New York, Pennsylvania, California and Georgia. The.

Bragar Eagel & Squire, P.C.  Litigation Partner  Brandon Walker  Encourages Investors Who Suffered Losses In Atara (ATRA) To Contact Him Directly To Discuss Their Options

NEW YORK, May 21, 2026 /PRNewswire/ -- Pomerantz LLP announces that a class action lawsuit has been filed against Atara Biotherapeutics, Inc. ("Atara" or the "Company") (NASDAQ: ATRA) and certain officers.   The class action, filed in the United States District Court for the Central District of California, and docketed under 26-cv-03083, is on behalf of a class consisting of all persons and entities other than Defendants that purchased or otherwise acquired Atara securities between May 20, 2024 and January 9, 2026, both dates inclusive (the "Class Period"), seeking to recover damages caused by Defendants' violations of the federal securities laws and to pursue remedies under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder, against the Company and certain of its top officials.

NEW YORK, May 21, 2026 (GLOBE NEWSWIRE) -- Bronstein, Gewirtz & Grossman, LLC, a nationally recognized investor-rights law firm, announces that a class action lawsuit has been filed against Atara Biotherapeutics, Inc. (NASDAQ: ATRA) and certain of its officers. This lawsuit seeks to recover damages against Defendants for alleged violations of the federal securities laws on behalf of all persons and entities that purchased or otherwise acquired Atara securities between May 20, 2024 and January 9, 2026, both dates inclusive (the “Class Period”).