---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-263387"
form_type: "8-K/A"
ticker: "EBC"
cik: "0001810546"
company_name: "Eastern Bankshares, Inc."
filed_at: "2025-11-04T23:59:59+00:00"
generated_at: "2026-05-17T00:41:08.981611+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Eastern Bankshares completes HarborOne acquisition; issues ~26.9M shares, 85% stock consideration

## Summary
- Merger effective Nov 1, 2025; 91.87% of HarborOne shares elected stock, 2.03% cash, 6.10% no election.
- After proration, 84.99% of HarborOne shares converted to stock consideration and 15.01% to cash.
- Eastern issued ~26,936,260 shares; pro forma shares outstanding ~238.45M as of Sep 30, 2025.
- Joseph F. Casey (former HarborOne CEO) and Michael J. Sullivan (former Chairman) appointed to Eastern's board.

## SEC filing metadata
- accession: 0001193125-25-263387
- form_type: 8-K/A
- ticker: EBC
- cik: 0001810546
- company_name: Eastern Bankshares, Inc.
- filed_at: 2025-11-04T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.01, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1810546/000119312525263387/0001193125-25-263387-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1810546/000119312525263387/d47988d8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-263387
- JSON: https://secwatch.observer/filing/0001193125-25-263387.json
- Plain text: https://secwatch.observer/filing/0001193125-25-263387.txt

## Source-grounded claims
- claim_id: 933d057d4e042ef87a9f963de7bf745043e297b2
  claim: Eastern Bankshares, Inc. completed an acquisition involving HarborOne Bancorp, Inc. for Merger Consideration consisting of 0.765 shares of Eastern common stock per share of HarborOne common stock (Stock Consideration) or $12.00 per share in cash (C (closed 2025-11-01).
  evidence_excerpt: (“Eastern”), the holding company for Eastern Bank, completed its acquisition of HarborOne Bancorp, Inc. (“HarborOne”) and its subsidiaries, including HarborOne Bank and HarborOne Mortgage, LLC (“HarborOne Mortgage”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1810546/000119312525263387/0001193125-25-263387-index.htm

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