---
schema_version: "secwatch.filing_event.v1"
accession: "0001723596-26-000021"
form_type: "8-K"
ticker: "CLBK"
cik: "0001723596"
company_name: "Columbia Financial, Inc."
filed_at: "2026-05-11T20:11:06+00:00"
generated_at: "2026-05-11T22:17:44.094461+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Columbia Financial starts conversion offering (up to 192.6M shares at $10); gets approvals for Northfield Bank buy

## Summary
- Offering of up to 192,625,000 shares of common stock at $10.00 per share.
- Minimum requirement of 142,375,000 shares to complete the conversion and offering.
- Conditional approvals from Federal Reserve and OCC for acquisition of Northfield Bancorp.
- Stock offering expected to commence on or about May 21, 2026.
- Offering prioritizes eligible depositors, borrowers, ESOP, then community and public.

## SEC filing metadata
- accession: 0001723596-26-000021
- form_type: 8-K
- ticker: CLBK
- cik: 0001723596
- company_name: Columbia Financial, Inc.
- filed_at: 2026-05-11T20:11:06+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1723596/000172359626000021/0001723596-26-000021-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1723596/000172359626000021/clbk-20260511.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001723596-26-000021
- JSON: https://secwatch.observer/filing/0001723596-26-000021.json
- Plain text: https://secwatch.observer/filing/0001723596-26-000021.txt

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