---
schema_version: "secwatch.filing_event.v1"
accession: "0001723596-25-000340"
form_type: "8-K"
ticker: "CLBK"
cik: "0001723596"
company_name: "Columbia Financial, Inc."
filed_at: "2025-09-08T23:59:59+00:00"
generated_at: "2026-05-17T07:38:14.002607+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Columbia Financial COO Matthew Smith to depart October 5, 2025

## Summary
- Matthew Smith, Senior EVP and COO, agreed to last day of employment on October 5, 2025.
- No successor or interim COO named in the filing; reason for departure not disclosed.
- Smith's departure affects both Columbia Financial and its subsidiary Columbia Bank.

## SEC filing metadata
- accession: 0001723596-25-000340
- form_type: 8-K
- ticker: CLBK
- cik: 0001723596
- company_name: Columbia Financial, Inc.
- filed_at: 2025-09-08T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1723596/000172359625000340/0001723596-25-000340-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1723596/000172359625000340/clbk-20250905.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001723596-25-000340
- JSON: https://secwatch.observer/filing/0001723596-25-000340.json
- Plain text: https://secwatch.observer/filing/0001723596-25-000340.txt

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