Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000887343-26-000170
Filing Date
2026-08-04
Accepted
2026-08-04 17:29:24
Documents
86
Period of Report
2026-06-30

Document Format Files

Seq Description Document Type Size
1 10-Q colb-20260630.htm   iXBRL 10-Q 4810872
2 EX-31.1 colb-20260630xex311.htm EX-31.1 8559
3 EX-31.2 colb-20260630xex312.htm EX-31.2 8547
4 EX-31.3 colb-20260630xex313.htm EX-31.3 8560
5 EX-32 colb-20260630xex32.htm EX-32 7758
  Complete submission text file 0000887343-26-000170.txt   22184881

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT colb-20260630.xsd EX-101.SCH 58677
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT colb-20260630_cal.xml EX-101.CAL 131017
8 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT colb-20260630_def.xml EX-101.DEF 413543
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT colb-20260630_lab.xml EX-101.LAB 873004
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT colb-20260630_pre.xml EX-101.PRE 658758
90 EXTRACTED XBRL INSTANCE DOCUMENT colb-20260630_htm.xml XML 6222681
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.: 261240384
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)