Recent News

• 03.16.2026 - Atara Biotherapeutics Announces Fourth Quarter and Full Year 2025 Financial Results and Operational Progress
• 03.12.2026 - Atara Biotherapeutics Provides Regulatory Update on Tabelecleucel
• 03.03.2026 - Atara Biotherapeutics Provides Regulatory Update on Tabelecleucel
• 02.23.2026 - Atara Biotherapeutics Provides a Business Update

Recent Filings

• 03.17.2026 - S-3 Registration statement under Securities Act of 1933
• 03.16.2026 - 8-K Current report
• 03.16.2026 - 424B5 Prospectus [Rule 424(b)(5)]
• 03.16.2026 - 10-K Annual report [Section 13 and 15(d), not S-K Item 405]
• 03.16.2026 - EX-99.1 EX-99.1
• 03.12.2026 - 8-K Current report
• 03.11.2026 - 4 Statement of changes in beneficial ownership of securities
• 03.11.2026 - 4 Statement of changes in beneficial ownership of securities
• 03.04.2026 - 4 Statement of changes in beneficial ownership of securities
• 03.04.2026 - 4 Statement of changes in beneficial ownership of securities