COLUMBIA BANKING SYSTEM, INC. — 4/A Filings
51 4/A filings on record
This page lists all 4/A 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 51 4/A documents with the SEC since 2017. To view all SEC filings by COLUMBIA BANKING SYSTEM, INC., see the full filings list.
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 |
|---|---|---|---|---|
| 4/A | FORM 4/A | 0000887343-26-000107 | Mar 20, 2026 | Mar 13, 2026 |
| 4/A | FORM 4/A | 0000887343-26-000106 | Mar 20, 2026 | Mar 13, 2026 |
| 4/A | FORM 4/A | 0000887343-25-000126 | Mar 14, 2025 | Feb 25, 2025 |
| 4/A | FORM 4/A | 0000887343-25-000124 | Mar 14, 2025 | Feb 25, 2025 |
| 4/A | FORM 4/A | 0000887343-25-000122 | Mar 14, 2025 | Feb 25, 2025 |
| 4/A | FORM 4/A | 0000887343-25-000120 | Mar 14, 2025 | Feb 25, 2025 |
| 4/A | FORM 4/A | 0000887343-23-000175 | Mar 10, 2023 | Mar 2, 2023 |
| 4/A | FORM 4/A | 0000887343-22-000107 | May 5, 2022 | Apr 29, 2022 |
| 4/A | FORM 4/A | 0000887343-22-000094 | Apr 4, 2022 | Mar 25, 2022 |
| 4/A | FORM 4/A | 0000887343-22-000093 | Apr 4, 2022 | Mar 25, 2022 |
| 4/A | FORM 4/A | 0000887343-20-000114 | Mar 12, 2020 | Feb 27, 2020 |
| 4/A | FORM 4/A | 0000887343-20-000113 | Mar 12, 2020 | Feb 27, 2020 |
| 4/A | FORM 4/A | 0000887343-20-000112 | Mar 12, 2020 | Feb 27, 2020 |
| 4/A | FORM 4/A | 0000887343-20-000111 | Mar 12, 2020 | Feb 27, 2020 |
| 4/A | FORM 4/A | 0000887343-19-000051 | Mar 14, 2019 | Feb 27, 2019 |
| 4/A | FORM 4/A | 0000887343-19-000050 | Mar 14, 2019 | Feb 27, 2019 |
| 4/A | FORM 4/A | 0000887343-19-000049 | Mar 14, 2019 | Feb 27, 2019 |
| 4/A | FORM 4/A | 0000887343-19-000048 | Mar 14, 2019 | Feb 27, 2019 |
| 4/A | FORM 4/A | 0000887343-19-000047 | Mar 14, 2019 | Feb 27, 2019 |
| 4/A | FORM 4/A | 0000887343-17-000073 | Mar 9, 2017 | Mar 8, 2017 |
| 4/A | FORM 4/A | 0000887343-17-000072 | Mar 9, 2017 | Mar 8, 2017 |
| 4/A | FORM 4/A | 0000887343-17-000071 | Mar 9, 2017 | Mar 8, 2017 |
| 4/A | FORM 4/A | 0000887343-17-000070 | Mar 9, 2017 | Mar 8, 2017 |
| 4/A | FORM 4/A | 0000887343-16-000094 | Aug 22, 2016 | Aug 18, 2016 |
| 4/A | PRIMARY DOCUMENT | 0001214659-16-010017 | Mar 2, 2016 | Feb 26, 2016 |
| 4/A | PRIMARY DOCUMENT | 0001397948-10-000003 | Jul 28, 2010 | Jun 30, 2010 |
| 4/A | PRIMARY DOCUMENT | 0001186661-10-000001 | Jan 15, 2010 | Jul 22, 2009 |
| 4/A | PRIMARY DOCUMENT | 0001186640-08-000004 | Feb 29, 2008 | Feb 27, 2008 |
| 4/A | PRIMARY DOCUMENT | 0001056916-08-000002 | Feb 8, 2008 | Feb 5, 2008 |
| 4/A | PRIMARY DOCUMENT | 0001186651-07-000002 | Dec 20, 2007 | Jul 31, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001186651-07-000001 | Aug 20, 2007 | Jul 31, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001186656-07-000002 | Feb 5, 2007 | Jan 11, 2007 |
| 4/A | PRIMARY DOCUMENT | 0001186652-07-000001 | Feb 5, 2007 | Jul 31, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001292058-07-000002 | Jan 17, 2007 | Jun 30, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001186640-07-000003 | Jan 16, 2007 | Jun 30, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001186640-07-000002 | Jan 5, 2007 | Jan 3, 2007 |
| 4/A | PRIMARY DOCUMENT | 0001056916-06-000003 | Dec 12, 2006 | Jul 31, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001186659-06-000003 | Aug 2, 2006 | Feb 22, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001186651-06-000003 | Aug 2, 2006 | Jul 31, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001056916-05-000004 | May 23, 2005 | Apr 27, 2005 |
| 4/A | PRIMARY DOCUMENT | 0001186661-05-000002 | Apr 27, 2005 | Apr 15, 2005 |
| 4/A | PRIMARY DOCUMENT | 0001056916-04-000012 | Sep 10, 2004 | Sep 2, 2004 |
| 4/A | PRIMARY DOCUMENT | 0001186640-04-000002 | Jan 7, 2004 | Dec 31, 2003 |
| 4/A | PRIMARY DOCUMENT | 0001186640-03-000013 | Dec 12, 2003 | — |
| 4/A | PRIMARY DOCUMENT | 0001186640-03-000012 | Dec 12, 2003 | Sep 30, 2003 |
| 4/A | PRIMARY DOCUMENT | 0001186654-03-000007 | Nov 13, 2003 | Sep 30, 2003 |
| 4/A | PRIMARY DOCUMENT | 0001186640-03-000011 | Nov 13, 2003 | Sep 30, 2003 |
| 4/A | PRIMARY DOCUMENT | 0001186654-03-000004 | Jul 28, 2003 | Mar 31, 2003 |
| 4/A | PRIMARY DOCUMENT | 0001186640-03-000007 | Jul 28, 2003 | Jul 1, 2003 |
| 4/A | PRIMARY DOCUMENT | 0001186640-03-000006 | Jul 28, 2003 | Mar 31, 2003 |