Columbia Banking System, Inc.

Symbol: COLB on Nasdaq
Entity: Company
Industry: State Commercial Banks (Office Of Finance)
Business address: 1301 A Street, 98402 Tacoma, WA
Phone: 2533051900
State of incorporation: WA
Fiscal year end: December 31
Category: Large accelerated filer
All SEC filings: View on sec.gov

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Columbia Banking System, Inc. has filed 1,737 SEC EDGAR filings since 5/22/1996

Latest Filings

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
4	Open Document	Open Filing	FORM 4	May 16, 2025	May 15, 2025
8-K	Open Document \| Data	Open Filing	8-K	May 16, 2025	May 16, 2025	000-20288
8-K	Open Document \| Data	Open Filing	8-K	May 15, 2025	May 15, 2025	000-20288
SCHEDULE 13G	Open Document	Open Filing		May 13, 2025		005-50084
10-Q	Open Document \| Data	Open Filing	10-Q	May 6, 2025	Mar 31, 2025	000-20288
425	Open Document	Open Filing	425	May 6, 2025
8-K	Open Document \| Data	Open Filing	FORM 8-K	May 5, 2025	May 5, 2025	000-20288
425	Open Document	Open Filing	425	Apr 25, 2025
8-K	Open Document \| Data	Open Filing	8-K	Apr 25, 2025	Apr 23, 2025	000-20288
425	Open Document	Open Filing	425	Apr 25, 2025
425	Open Document	Open Filing	425	Apr 24, 2025
425	Open Document	Open Filing	425	Apr 24, 2025
425	Open Document	Open Filing	425	Apr 24, 2025
425	Open Document	Open Filing	425	Apr 24, 2025
425	Open Document	Open Filing	425	Apr 24, 2025
425	Open Document	Open Filing	425	Apr 23, 2025
8-K	Open Document \| Data	Open Filing	8-K	Apr 23, 2025	Apr 23, 2025	000-20288
8-K	Open Document \| Data	Open Filing	8-K	Apr 23, 2025	Apr 23, 2025	000-20288
ARS	Open Document	Open Filing	ARS	Apr 3, 2025	Dec 31, 2024	000-20288
DEFA14A	Open Document	Open Filing	DEFA14A	Apr 3, 2025		000-20288
DEF 14A	Open Document \| Data	Open Filing	DEF 14A	Apr 3, 2025	May 15, 2025	000-20288
8-K	Open Document \| Data	Open Filing	8-K	Apr 2, 2025	Mar 30, 2025	000-20288
11-K	Open Document	Open Filing	11-K	Mar 31, 2025	Dec 31, 2024	000-20288
8-K	Open Document \| Data	Open Filing	8-K	Mar 31, 2025	Mar 31, 2025	000-20288
8-K	Open Document \| Data	Open Filing	8-K	Mar 27, 2025	Mar 27, 2025	000-20288
4/A	Open Document	Open Filing	FORM 4/A	Mar 14, 2025	Feb 25, 2025
4/A	Open Document	Open Filing	FORM 4/A	Mar 14, 2025	Feb 25, 2025
4/A	Open Document	Open Filing	FORM 4/A	Mar 14, 2025	Feb 25, 2025
4/A	Open Document	Open Filing	FORM 4/A	Mar 14, 2025	Feb 25, 2025
4	Open Document	Open Filing	FORM 4	Mar 5, 2025	Mar 4, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025
4	Open Document	Open Filing	FORM 4	Mar 4, 2025	Feb 28, 2025

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