---
schema_version: "secwatch.filing_event.v1"
accession: "0000887343-25-000169"
form_type: "8-K"
ticker: "COLB"
cik: "0000887343"
company_name: "COLUMBIA BANKING SYSTEM, INC."
filed_at: "2025-05-15T23:59:59+00:00"
generated_at: "2026-05-21T06:58:00.754606+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Columbia Banking System shareholders elect all 11 director nominees and approve say-on-pay at 2025 annual meeting

## Summary
- All 11 director nominees elected with >180M votes each; broker non-votes ~11M.
- Advisory say-on-pay proposal approved: 179.3M for, 4.4M against.
- Ratification of Deloitte & Touche as 2025 auditor passed with 194.5M for.
- Quorum of 195.2M shares (92.9% of outstanding) present at the meeting.

## SEC filing metadata
- accession: 0000887343-25-000169
- form_type: 8-K
- ticker: COLB
- cik: 0000887343
- company_name: COLUMBIA BANKING SYSTEM, INC.
- filed_at: 2025-05-15T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/887343/000088734325000169/0000887343-25-000169-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/887343/000088734325000169/colb-20250515.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000887343-25-000169
- JSON: https://secwatch.observer/filing/0000887343-25-000169.json
- Plain text: https://secwatch.observer/filing/0000887343-25-000169.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.