---
schema_version: "secwatch.filing_event.v1"
accession: "0000887343-26-000165"
form_type: "8-K"
ticker: "COLB"
cik: "0000887343"
company_name: "COLUMBIA BANKING SYSTEM, INC."
filed_at: "2026-07-23T20:31:08+00:00"
generated_at: "2026-07-23T20:32:07.260807+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Columbia Banking Q2 2026 EPS $0.73, operating EPS $0.76; NIM 3.93%; $199M stock buyback

## Summary
- Net income $208M ($0.73 diluted EPS); operating net income $217M ($0.76 operating diluted EPS).
- Net interest margin 3.93%, down 3 bps from prior quarter; net interest income $589M, down $5M.
- Non-interest expense $375M, down $19M QoQ; cost savings from Pacific Premier acquisition achieved.
- Repurchased 6.6M shares for $199M at avg $29.93; quarterly dividend $0.37 per share.
- Total assets $65.4B, loans $47.2B, deposits $52.1B; credit stable with net charge-offs 0.25% annualized.

## SEC filing metadata
- accession: 0000887343-26-000165
- form_type: 8-K
- ticker: COLB
- cik: 0000887343
- company_name: COLUMBIA BANKING SYSTEM, INC.
- filed_at: 2026-07-23T20:31:08+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/887343/000088734326000165/0000887343-26-000165-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/887343/000088734326000165/colb-20260723.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000887343-26-000165
- JSON: https://secwatch.observer/filing/0000887343-26-000165.json
- Plain text: https://secwatch.observer/filing/0000887343-26-000165.txt

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