secwatch.observer — SEC 8-K summary
======================================

Issuer:     COLUMBIA BANKING SYSTEM, INC. (COLB)
CIK:        0000887343
Form:       8-K
Filed at:   2025-04-02T23:59:59+00:00
Accession:  0000887343-25-000143
Event type: leadership
Sentiment:  neutral
Materiality: 0.60
Item codes: 5.02, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Columbia Banking eliminates Executive Chair role; O'Haver departs, Pope named non-executive chair
--------------------------------------------------------------------------------

- Cort O'Haver resigned as Executive Chair and director, effective March 31, 2025.
- Board eliminated Executive Chair role, citing successful merger integration with Umpqua.
- Maria Pope elected independent non-executive Board Chair, effective April 1, 2025.
- O'Haver receives severance per 2021 employment letter for involuntary termination without cause.
- Pope is president/CEO of Portland General Electric; served on Columbia board since merger.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/887343/000088734325000143/0000887343-25-000143-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/887343/000088734325000143/colb-20250330.htm
  HTML page:      https://secwatch.observer/filing/0000887343-25-000143

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer