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COLB

Columbia Banking System, Inc. SEC filings
State Commercial Banks · Nasdaq · Incorporated in WA
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Filing history
2026-11-05
Quarterly report 10-Q
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2026-10-30
Insider trade 4
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2026-10-29
Planned insider sale 144
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2026-10-27
Current report 8-K
Exec/director change
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2026-10-22
Current report 8-K
Earnings resultsReg FD disclosure
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2026-09-30
Current report 8-K
Reg FD disclosure
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2026-09-15
Insider trade 4
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2026-09-08
Insider trade 4
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2026-09-04
Insider trade 4
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2026-09-02
New insider's holdings 3
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2026-08-18
Insider trade 4
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2026-08-14
Current report 8-K
Other event
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2026-08-13
Passive 5%+ stake update SCHEDULE 13G/A
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2026-08-04
Quarterly report 10-Q
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2026-07-30
Current report 8-K
Exec/director changeReg FD disclosure
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2026-07-23
Current report 8-K
Earnings resultsReg FD disclosure
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2026-07-02
Insider trade 4
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2026-07-01
Current report 8-K
Reg FD disclosure
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2026-06-25
Employee plan report 11-K
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2026-06-16
Insider trade 4
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2026-06-16
11-K/A 11-K/A
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2026-06-10
Insider trade 4
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2026-06-08
Planned insider sale 144
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
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2026-05-18
Insider trade 4
Filing ↗
2026-05-15
Current report 8-K
Other event
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2026-05-15
Current report 8-K
Shareholder vote
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2026-05-05
Quarterly report 10-Q
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2026-04-29
Passive 5%+ stake SCHEDULE 13G
Filing ↗
2026-04-23
Current report 8-K
Earnings resultsReg FD disclosure
Filing ↗
2026-04-16
Insider trade 4
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2026-03-31
Annual report to shareholders ARS
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