Columbia Banking System, Inc. (COLB) SEC Filings

Columbia Banking System, Inc. (COLB) SEC EDGAR filings (8-K, 10-Q, DEF 14A, 10-K, 8-K/A), newest first; latest 8-K filed 2026-08-14. Every filing links to the canonical SEC document. First-party data.

SEC filings — source: EDGAR

Filed	Form	Title
2026-08-14	8-K	8-K filed 2026-08-14 by COLUMBIA BANKING SYSTEM, INC.
2026-08-04	10-Q	10-Q filed 2026-08-04 by COLUMBIA BANKING SYSTEM, INC.
2026-07-30	8-K	8-K filed 2026-07-30 by COLUMBIA BANKING SYSTEM, INC.
2026-07-23	8-K	8-K filed 2026-07-23 by COLUMBIA BANKING SYSTEM, INC.
2026-07-01	8-K	8-K filed 2026-07-01 by COLUMBIA BANKING SYSTEM, INC.
2026-05-15	8-K	8-K filed 2026-05-15 by COLUMBIA BANKING SYSTEM, INC.
2026-05-15	8-K	8-K filed 2026-05-15 by COLUMBIA BANKING SYSTEM, INC.
2026-05-05	10-Q	10-Q filed 2026-05-05 by COLUMBIA BANKING SYSTEM, INC.
2026-04-23	8-K	8-K filed 2026-04-23 by COLUMBIA BANKING SYSTEM, INC.
2026-03-31	8-K	8-K filed 2026-03-31 by COLUMBIA BANKING SYSTEM, INC.
2026-03-31	DEF 14A	DEF 14A filed 2026-03-31 by COLUMBIA BANKING SYSTEM, INC.
2026-02-26	10-K	10-K filed 2026-02-26 by COLUMBIA BANKING SYSTEM, INC.
2026-02-13	8-K	8-K filed 2026-02-13 by COLUMBIA BANKING SYSTEM, INC.
2026-01-22	8-K	8-K filed 2026-01-22 by COLUMBIA BANKING SYSTEM, INC.
2025-12-31	8-K	8-K filed 2025-12-31 by COLUMBIA BANKING SYSTEM, INC.
2025-11-21	8-K	8-K filed 2025-11-21 by COLUMBIA BANKING SYSTEM, INC.
2025-11-14	8-K	8-K filed 2025-11-14 by COLUMBIA BANKING SYSTEM, INC.
2025-11-06	10-Q	10-Q filed 2025-11-06 by COLUMBIA BANKING SYSTEM, INC.
2025-11-04	8-K	8-K filed 2025-11-04 by COLUMBIA BANKING SYSTEM, INC.
2025-10-30	8-K	8-K filed 2025-10-30 by COLUMBIA BANKING SYSTEM, INC.
2025-09-03	8-K/A	8-K/A filed 2025-09-03 by COLUMBIA BANKING SYSTEM, INC.
2025-09-02	8-K	8-K filed 2025-09-02 by COLUMBIA BANKING SYSTEM, INC.
2025-08-29	8-K	8-K filed 2025-08-29 by COLUMBIA BANKING SYSTEM, INC.
2025-08-15	8-K	8-K filed 2025-08-15 by COLUMBIA BANKING SYSTEM, INC.
2025-08-06	10-Q	10-Q filed 2025-08-06 by COLUMBIA BANKING SYSTEM, INC.
2025-08-06	8-K	8-K filed 2025-08-06 by COLUMBIA BANKING SYSTEM, INC.
2025-07-24	8-K	8-K filed 2025-07-24 by COLUMBIA BANKING SYSTEM, INC.
2025-07-22	8-K	8-K filed 2025-07-22 by COLUMBIA BANKING SYSTEM, INC.
2025-07-11	8-K	8-K filed 2025-07-11 by COLUMBIA BANKING SYSTEM, INC.
2025-06-30	8-K	8-K filed 2025-06-30 by COLUMBIA BANKING SYSTEM, INC.

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Data sourced from U.S. SEC EDGAR. Not personalized investment advice.