# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000887343-25-000268
Filing Date
2025-11-06
Accepted
2025-11-05 17:35:11
Documents
93
Period of Report
2025-09-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | colb-20250930.htm iXBRL | 10-Q | 4873422
2 | CERTIFICATION OF CHIEF EXECUTIVE OFFICER | colb-20250930xex311.htm | EX-31.1 | 7966
3 | CERTIFICATION OF CHIEF FINANCIAL OFFICER | colb-20250930xex312.htm | EX-31.2 | 8092
4 | CERTIFICATION OF PRINCIPAL ACCOUNTING OFFICER | colb-20250930xex313.htm | EX-31.3 | 8074
5 | CERTIFICATION OF CEO, CFO, AND PAO | colb-20250930xex32.htm | EX-32 | 7737
| Complete submission text file | 0000887343-25-000268.txt |  | 22995904

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
6 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | colb-20250930.xsd | EX-101.SCH | 63734
7 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | colb-20250930_cal.xml | EX-101.CAL | 134137
8 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | colb-20250930_def.xml | EX-101.DEF | 490876
9 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | colb-20250930_lab.xml | EX-101.LAB | 941257
10 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | colb-20250930_pre.xml | EX-101.PRE | 734789
95 | EXTRACTED XBRL INSTANCE DOCUMENT | colb-20250930_htm.xml | XML | 6300551

Mailing Address 1301 A STREET TACOMA WA 98402
Business Address 1301 A STREET TACOMA WA 98402 2533051900
COLUMBIA BANKING SYSTEM, INC. (Filer) CIK: 0000887343 (see all company filings)

EIN.: 911422237 | State of Incorp.: WA | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-20288 | Film No.: 251455296
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)