---
schema_version: "secwatch.filing_event.v1"
accession: "0000887343-25-000280"
form_type: "8-K"
ticker: "COLB"
cik: "0000887343"
company_name: "COLUMBIA BANKING SYSTEM, INC."
filed_at: "2025-12-31T23:59:59+00:00"
generated_at: "2026-05-16T11:57:02.843018+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Columbia Banking System to report Q4 2025 earnings on Jan 22, 2026 after market close

## Summary
- Earnings release scheduled for after market close on Thursday, January 22, 2026.
- Conference call at 2:00 PM PT (5:00 PM ET) same day to discuss results and recent activities.
- Live Q&A session and audiocast available; registration details provided in press release.

## SEC filing metadata
- accession: 0000887343-25-000280
- form_type: 8-K
- ticker: COLB
- cik: 0000887343
- company_name: COLUMBIA BANKING SYSTEM, INC.
- filed_at: 2025-12-31T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/887343/000088734325000280/0000887343-25-000280-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/887343/000088734325000280/colb-20251231.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000887343-25-000280
- JSON: https://secwatch.observer/filing/0000887343-25-000280.json
- Plain text: https://secwatch.observer/filing/0000887343-25-000280.txt

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