Columbia Banking System, Inc. filed 1 current report with the SEC under Item 5.02, which covers directors and officers leaving or being appointed, the latest on 2026-07-30. Between them they name 1 person. Each change below is quoted from the filing and linked to it.
Every change, newest first
Appointed: Simone Lagomarsino, effective 2026-09-01
On July 28, 2026, the Board of Directors of Columbia Banking System, Inc. (the "Company") appointed Simone Lagomarsino to the Board of Directors of the Company and, subject to approval by the Oregon Department of Consumer and Financial Services Division of Financial Regulation, the Board of Directors of Columbia Bank, the Company's wholly owned subsidiary, effective as of September 1, 2026 (the "Effective Date").
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.