1301 A STREET, TACOMA, WA
Announces $0.37 Per Common Share Dividend
Columbia Banking System, Inc. 2026 Annual Meeting Voting Results
Reports First Quarter 2026 Results
Announces Date of First Quarter 2026 Earnings Release and Conference Call
Annual Report to Security Holders
REPORTS FOURTH QUARTER 2025 RESULTS
Announces Date of Fourth Quarter 2025 Earnings Release and Conference Call
Q1
FY 2024
Q3
Q2
FY 2023
Registration Statement for Securities to be Offered to Employees
Prospectus Filed Pursuant to Rule 425
Prospectus filed pursuant to Rule 424(b)(3)
Effectiveness Notice
S-4/A
S-4
Definitive Proxy Statement
Additional Proxy Materials
Statement of Changes in Beneficial Ownership
Correspondence
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