Event Type
Disclosure
Mandatory
Variant
8-K
Results of Operations and Financial Condition. On January 22, 2026, Columbia Banking System, Inc. issued a press release announcing fourth quarter and full year
Regulation FD Disclosure. On January 22, 2026, Columbia Banking System, Inc. issued an investor slide presentation that it intends to review in conjunction with
Financial Statements and Exhibits. (d) EXHIBITS 99.1 Press Release announcing fourth quarter 2025 financial results dated January 22, 2026 99.2 Fourth Quarter 2