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AI brief of an SEC Form 8-K · Columbia Banking System (COLB)

Columbia Banking System names Simone Lagomarsino to board, effective September 1, 2026

Neutral Impact 2 of 5 leadership Written later

Columbia Banking System, Inc. appointed Simone Lagomarsino to its Board of Directors on July 28, 2026, effective September 1, 2026. Her seat on the Columbia Bank board is subject to approval by the Oregon Department of Consumer and Financial Services. She will serve on the Audit and Enterprise Risk Management committees, and her director pay is set by the company's 2026 non-employee director program.

Key points

  • Appointment effective September 1, 2026; Columbia Bank board seat subject to Oregon regulator approval
  • Will serve on the Audit Committee and the Enterprise Risk Management Committee
  • Annual cash retainer of $95,000 and annual equity retainer of $115,000, prorated for the partial year
  • Restricted stock award from the equity retainer vests in full on May 14, 2027

The filing

CompanyColumbia Banking System (COLB)
Form8-K, current report
Filed with the SECJul 30, 2026, 5:27 PM ET
Accession number0000887343-26-000167

Items reported: 5.02 Director / Officer Change7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:17 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on July 30, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.