COLUMBIA BANKING SYSTEM, INC. — 4 Filings
971 4 filings on record
This page lists all 4 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 971 4 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 | FORM 4 | 0001955918-26-000003 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001798077-26-000002 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001759802-26-000008 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001550429-26-000002 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001606248-26-000002 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001810107-26-000007 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001740374-26-000002 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001133099-26-000005 | Mar 17, 2026 | Mar 16, 2026 |
| 4 | FORM 4 | 0001619728-26-000003 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001689701-26-000004 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0001796657-26-000005 | Mar 17, 2026 | Mar 13, 2026 |
| 4 | FORM 4 | 0000887343-26-000103 | Mar 5, 2026 | Mar 3, 2026 |
| 4 | FORM 4 | 0001689701-26-000002 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0000887343-26-000090 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0001810107-26-000005 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0000887343-26-000092 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0000887343-26-000094 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0000887343-26-000102 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0001759802-26-000006 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0000887343-26-000096 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0000887343-26-000100 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0000887343-26-000098 | Mar 2, 2026 | Mar 1, 2026 |
| 4 | FORM 4 | 0000887343-26-000073 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000075 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000077 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0001759802-26-000004 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000079 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0002099171-26-000002 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000081 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000071 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000083 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000069 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000065 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000067 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | FORM 4 | 0000887343-26-000061 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0000887343-26-000063 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0000887343-26-000053 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0000887343-26-000047 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0000887343-26-000049 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0000887343-26-000051 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0000887343-26-000055 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0000887343-26-000057 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0000887343-26-000059 | Feb 18, 2026 | Feb 15, 2026 |
| 4 | FORM 4 | 0001133099-26-000003 | Feb 5, 2026 | Dec 3, 2025 |
| 4 | FORM 4 | 0001796657-26-000002 | Feb 4, 2026 | Feb 2, 2026 |
| 4 | FORM 4 | 0000887343-26-000030 | Feb 4, 2026 | Feb 2, 2026 |
| 4 | FORM 4 | 0001759802-26-000002 | Feb 4, 2026 | Feb 2, 2026 |
| 4 | FORM 4 | 0000887343-26-000032 | Feb 4, 2026 | Feb 2, 2026 |
| 4 | FORM 4 | 0000887343-26-000034 | Feb 4, 2026 | Feb 2, 2026 |
| 4 | FORM 4 | 0000887343-26-000036 | Feb 4, 2026 | Feb 2, 2026 |