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

Columbia Banking names Brock Lakely chief accounting officer, succeeding Lisa White

Neutral Impact 2 of 5 leadership Written later

Columbia Banking System named Brock Lakely as Executive Vice President, Chief Accounting Officer and Corporate Controller effective November 20, 2025, replacing Lisa M. White, who left the role effective November 19, 2025. The filing gives his base salary as $360,000 and says the change involves no special arrangements or family relationships, so it is a routine finance leadership change rather than a change in company results or strategy.

Key points

  • Lisa M. White ceased serving as Principal Accounting Officer and Corporate Controller effective end of business November 19, 2025
  • Brock Lakely appointed effective November 20, 2025, with annual base salary increased to $360,000
  • Lakely previously served as Chief Audit Executive from April 3, 2023 to November 19, 2024, and as Chief Accounting Officer from May 20, 2018 to April 3, 2023

The filing

CompanyColumbia Banking System (COLB)
Form8-K, current report
Filed with the SECNov 21, 2025, 8:45 AM ET
Accession number0001193125-25-290691

Items reported: 5.02 Director / Officer Change

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 1:17 AM ET, from the text of the filing and its press-release exhibits 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 November 21, 2025.

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