Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000887343-26-000049
Filing Date
2026-02-18
Accepted
2026-02-18 18:26:09
Documents
1
Period of Report
2026-02-15

Document Format Files

Seq Description Document Type Size
1 FORM 4 wk-form4_1771457166.html 4  
1 FORM 4 wk-form4_1771457166.xml 4 3124
  Complete submission text file 0000887343-26-000049.txt   4628
Mailing Address 1301 A STREET TACOMA WA 98402
Business Address 1301 A STREET TACOMA WA 98402 2533051900
COLUMBIA BANKING SYSTEM, INC. (Issuer) CIK: 0000887343 (see all company filings)

EIN.: 911422237 | State of Incorp.: WA | Fiscal Year End: 1231
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)

Mailing Address C/O COLUMBIA BANKING SYSTEM, INC 1301 A STREET TACOMA WA 98402
Business Address
BARUFFI KUMI YAMAMOTO (Reporting) CIK: 0001619728 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-20288 | Film No.: 26650740