---
schema_version: "secwatch.filing_event.v1"
accession: "0000887343-24-000112"
form_type: "8-K"
ticker: "COLB"
cik: "0000887343"
company_name: "COLUMBIA BANKING SYSTEM, INC."
filed_at: "2024-03-05T23:59:59+00:00"
generated_at: "2026-06-05T04:28:12.827065+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Columbia Banking targets Q4 2024 core expense run rate $965M-$985M; FY23 operating EPS $2.66

## Summary
- FY 2023 operating net income $521M ($2.66 EPS); Q4 2023 operating net income $116M ($0.56 EPS).
- Targets Q4 2024 core expense run rate of $965M-$985M annualized, excluding CDI amortization.
- Closed 5 branches in Jan 2024; consolidated 47 branches in 2023 post-Umpqua merger.
- Available liquidity $18.7B (45% of deposits, 138% of uninsured deposits) at Dec 31, 2023.
- Plans to increase density in CA and other western markets; may reduce transactional assets when rates decline.

## SEC filing metadata
- accession: 0000887343-24-000112
- form_type: 8-K
- ticker: COLB
- cik: 0000887343
- company_name: COLUMBIA BANKING SYSTEM, INC.
- filed_at: 2024-03-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/887343/000088734324000112/0000887343-24-000112-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/887343/000088734324000112/colb-20240304.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000887343-24-000112
- JSON: https://secwatch.observer/filing/0000887343-24-000112.json
- Plain text: https://secwatch.observer/filing/0000887343-24-000112.txt

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