Columbia Banking System Inc.

NASDAQ: COLB
Share price (8/15/25): $25.64
Market cap (8/15/25): $5.392 billion

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ended 06/30/25 Q2

ended 03/31/25 Q1

ended 12/31/24 FY 2024

ended 09/30/24 Q3

ended 06/30/24 Q2

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Announces $0.36 Per Common Share Dividend

Columbia Banking System and Pacific Premier Bancorp Announce Regulatory Approvals and Anticipated Merger Closing Date

REPORTS SECOND QUARTER 2025 RESULTS $152 Million $160 Million $0.73 $0.76 Net Income Operating Net Income 1 Earnings Per Common Share - Diluted Operating Earnings Per Common Share - Diluted 1

Columbia Banking System and Pacific Premier Bancorp Announce Shareholder and Stockholder Approval for Proposed Acquisition

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