ATRA
Atara·NASDAQ
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ATRA Filings
Filing Date
Form Description
Form Type
2026-03-26
Form EFFECT - Notice of Effectiveness
2026-03-26 ·
Form EFFECT - Notice of Effectiveness
2026-03-25
Form 424B3 - Prospectus [Rule 424(b)(3)]
2026-03-25 ·
Form 424B3 - Prospectus [Rule 424(b)(3)]
2026-03-19
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-19 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-17
Form S-3 - Registration statement under Securities Act of 1933
2026-03-17 ·
Form S-3 - Registration statement under Securities Act of 1933
2026-03-16
Form 424B5 - Prospectus [Rule 424(b)(5)]
2026-03-16 ·
Form 424B5 - Prospectus [Rule 424(b)(5)]
2026-03-16
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]
Financials
2026-03-16 · Financials
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]
2026-03-16
Form 8-K - Current report
Key Events
2026-03-16 · Key Events
Form 8-K - Current report
2026-03-12
Form 8-K - Current report
Key Events
2026-03-12 · Key Events
Form 8-K - Current report
2026-03-11
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-11 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-11
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-11 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
