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COLUMBIA BANKING SYSTEM, INC. — 10-K Filings

27 10-K filings on record

This page lists all 10-K filings submitted to the SEC by COLUMBIA BANKING SYSTEM, INC. (COLB), sorted by most recent first. Each row links to the full filing on EdgarLookup. COLUMBIA BANKING SYSTEM, INC. has filed 27 10-K documents with the SEC since 2017. To view all SEC filings by COLUMBIA BANKING SYSTEM, INC., see the full filings list.

Overview All Filings Financials Insiders
All 10-C 10-K 10-K/A 10-K405 10-Q 10-Q/A 11-K 144 3 3/A 4 4/A 424B1 424B3 424B5 425 5 8-K 8-K/A ARS CORRESP DEF 14A DEFA14A DEFM14A DFAN14A EFFECT POS AM PRE 14A S-2 S-2/A S-2MEF S-3 S-3ASR S-3MEF S-4 S-4/A S-8 S-8 POS SC 13G SC 13G/A SCHEDULE 13G SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
10-K 10-K 0000887343-26-000088 Feb 26, 2026 Dec 31, 2025
10-K 10-K 0000887343-25-000054 Feb 25, 2025 Dec 31, 2024
10-K 10-K 0000887343-24-000089 Feb 27, 2024 Dec 31, 2023
10-K 10-K 0000887343-23-000072 Feb 24, 2023 Dec 31, 2022
10-K 10-K 0000887343-22-000038 Feb 25, 2022 Dec 31, 2021
10-K 10-K 0000887343-21-000065 Feb 26, 2021 Dec 31, 2020
10-K 10-K 0000887343-20-000070 Feb 27, 2020 Dec 31, 2019
10-K 10-K 0000887343-19-000033 Feb 28, 2019 Dec 31, 2018
10-K 10-K 0000887343-18-000041 Mar 1, 2018 Dec 31, 2017
10-K 10-K 0000887343-17-000049 Mar 1, 2017 Dec 31, 2016
10-K 10-K 0000887343-16-000045 Feb 29, 2016 Dec 31, 2015
10-K 10-K 0000887343-15-000009 Mar 2, 2015 Dec 31, 2014
10-K 10-K 0000887343-14-000008 Mar 3, 2014 Dec 31, 2013
10-K 10-K 0000887343-13-000008 Mar 1, 2013 Dec 31, 2012
10-K FORM 10-K 0000887343-12-000013 Feb 29, 2012 Dec 31, 2011
10-K FORM 10-K 0001193125-11-051645 Mar 1, 2011 Dec 31, 2010
10-K FORM 10-K 0001193125-10-047987 Mar 4, 2010 Dec 31, 2009
10-K FORM 10-K 0000887343-09-000005 Feb 27, 2009 Dec 31, 2008
10-K FORM 10-K 0001193125-08-049099 Mar 7, 2008 Dec 31, 2007
10-K ANNUAL REPORT ON FORM 10-K 0001193125-07-045469 Mar 2, 2007 Dec 31, 2006
10-K ANNUAL REPORT ON FORM 10-K 0001193125-06-047205 Mar 7, 2006 Dec 31, 2005
10-K ANNUAL REPORT FOR THE FISCAL YEAR ENDED DECEMBER 31, 2004 0001193125-05-051426 Mar 16, 2005 Dec 31, 2004
10-K FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 2003 0001193125-04-040401 Mar 12, 2004 Dec 31, 2003
10-K FORM 10-K FOR THE FISCAL YEAR ENDED 12/31/2002 0001032210-03-000321 Mar 14, 2003 Dec 31, 2002
10-K FORM 10K ANNUAL REPORT 0001032210-99-000424 Mar 30, 1999 Dec 31, 1998
10-K ANNUAL REPORT FOR THE FISCAL YEAR END 12-31-1997 0001032210-98-000237 Mar 19, 1998 Dec 31, 1997
10-K EDGAR FORM 10-K FOR COLUMBIA BANKING SYSTEMS, INC. 0000891020-97-000441 Mar 28, 1997 Dec 31, 1996