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[EFFECT] Atara Biotherapeutics, Inc. SEC Filing

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(Neutral)
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(Neutral)
Form Type
EFFECT
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: March 25, 2026 4:30 P.M.
Form: S-3
CIK: 0001604464
Company Name: Atara Biotherapeutics, Inc.
File Number: 333-294377

Source: View Original Filing on SEC EDGAR

Atara Biotherape

NASDAQ:ATRA

View ATRA Stock Overview →

ATRA Rankings

#5764 Ranked by Market Cap
N/A Ranked by Dividends

ATRA Latest News

Mar 16, 2026
Atara Biotherapeutics Announces Fourth Quarter and Full Year 2025 Financial Results and Operational Progress
Mar 12, 2026
Atara Biotherapeutics Provides Regulatory Update on Tabelecleucel
Mar 3, 2026
Atara Biotherapeutics Provides Regulatory Update on Tabelecleucel
Feb 23, 2026
Atara Biotherapeutics Provides a Business Update
Jan 12, 2026
PIERRE FABRE PHARMACEUTICALS STATEMENT REGARDING RECEIPT OF COMPLETE RESPONSE LETTER FOR TABELECLEUCEL BIOLOGICS LICENSE APPLICATION FROM THE U.S. FOOD AND DRUG ADMINISTRATION

ATRA Latest SEC Filings

Mar 25, 2026
[424B3] Atara Biotherapeutics, Inc. Prospectus Filed Pursuant to Rule 424(b)(3)
Mar 19, 2026
[Form 4] Atara Biotherapeutics, Inc. Insider Trading Activity
Mar 17, 2026
[S-3] Atara Biotherapeutics, Inc. Shelf Registration Statement
Mar 16, 2026
[424B5] Atara Biotherapeutics, Inc. Prospectus Supplement (Debt Securities)
Mar 16, 2026
[10-K] Atara Biotherapeutics, Inc. Files Annual Report

ATRA Stock Data

38.52M
6.68M
Biotechnology
Biological Products, (no Diagnostic Substances)
Link
United States
THOUSAND OAKS