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Mo., 04.05.2026 Atara Biotherapeutics

New York, New York--(Newsfile Corp. - May 3, 2026) - 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.SO WHAT: If you purchased Atara se...

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ROSEN, Global Investor Counsel, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

ATRA EQUITY ALERT: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

ROSEN, A Leading Law Firm, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

Bronstein, Gewirtz & Grossman LLC Urges Atara Biotherapeutics, Inc. Investors to Act: Class Action Filed Alleging Investor Harm | Atara Biotherapeutics, Inc.

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

ATRA UPCOMING DEADLINE: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

ROSEN, TOP RANKED GLOBAL COUNSEL, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

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

ATRA INVESTOR DEADLINE APPROACHING: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

ATRA EQUITY ALERT: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

ROSEN, A TRUSTED AND LEADING LAW FIRM, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

ROSEN, A HIGHLY RECOGNIZED LAW FIRM, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

ATRA UPCOMING DEADLINE: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

ATRA CLASS ACTION NOTICE: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

REMINDER: Atara Biotherapeutics, Inc. Investors With Significant Losses Must Act By May 22, 2026 – Contact Kirby McInerney LLP | Atara Biotherapeutics, Inc.

ROSEN, A RANKED AND LEADING LAW FIRM, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

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

ROSEN, NATIONAL TRIAL LAWYERS, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

ATRA DEADLINE ALERT: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

Faruqi & Faruqi, LLP Highlights Class Action Against Atara (ATRA) and Upcoming Lead Plaintiff Deadline of May 22, 2026 | Atara Biotherapeutics, Inc.

ROSEN, A LEADING AND LONGSTANDING FIRM, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

ROSEN, RECOGNIZED INVESTOR COUNSEL, Encourages Atara Biotherapeutics, Inc. Investors with Losses in Excess of $100K to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

ATRA SHAREHOLDER REMINDER: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

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

ATRA INVESTOR NOTICE: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

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

ATRA CLASS ACTION NOTICE: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

ROSEN, A LEADING LAW FIRM, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

ATRA INVESTOR DEADLINE APPROACHING: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

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

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

ATRA INVESTOR NOTICE: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

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

Deadline Alert: Atara Biotherapeutics, Inc. (ATRA) Shareholders Who Lost Money Urged To Contact Glancy Prongay Wolke & Rotter LLP About Securities Fraud Lawsuit | Atara Biotherapeutics, Inc.

Deadline Approaching: Atara Biotherapeutics, Inc. (ATRA) Shareholders Who Lost Money Urged To Contact Law Offices of Howard G. Smith | Atara Biotherapeutics, Inc.

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

Law Offices of Frank R. Cruz Encourages Atara Biotherapeutics, Inc. (ATRA) Shareholders To Inquire About Securities Fraud Class Action | Atara Biotherapeutics, Inc.

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

ATRA EQUITY ALERT: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

Glancy Prongay Wolke & Rotter LLP, a Leading Securities Fraud Law Firm Encourages Atara Biotherapeutics, Inc. (ATRA) Shareholders To Inquire About Securities Fraud Class Action | Atara Biotherapeutics, Inc.

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

Law Offices of Howard G. Smith Encourages Atara Biotherapeutics, Inc. (ATRA) Shareholders To Inquire About Securities Fraud Class Action | Atara Biotherapeutics, Inc.

ATRA INVESTOR ALERT: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026 | Atara Biotherapeutics, Inc.

ROSEN, NATIONAL TRIAL LAWYERS, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRA | Atara Biotherapeutics, Inc.

Securities Fraud Investigation Into Atara Biotherapeutics, Inc. (ATRA) Announced – Shareholders Who Lost Money Urged To Contact Glancy Prongay Wolke & Rotter LLP, a Leading Securities Fraud Law Firm | Atara Biotherapeutics, Inc.

Atara Biotherapeutics, Inc. (ATRA) Shareholders Who Lost Money – Contact Law Offices of Howard G. Smith About Securities Fraud Investigation | Atara Biotherapeutics, Inc.

Atara Biotherapeutics, Inc. Sued for Securities Law Violations - Contact the DJS Law Group to Discuss Your Rights – ATRA | Atara Biotherapeutics, Inc.

ATRA Investors Have Opportunity to Lead Atara Biotherapeutics, Inc. Securities Fraud Lawsuit with the Schall Law Firm | Atara Biotherapeutics, Inc.

Securities Fraud Investigation Into Atara Biotherapeutics, Inc. (ATRA) Announced – Shareholders Who Lost Money Urged To Contact The Law Offices of Frank R. Cruz | Atara Biotherapeutics, Inc.

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