---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-100844"
form_type: "8-K"
ticker: "NBBK"
cik: "0001979330"
company_name: "NB Bancorp, Inc."
filed_at: "2025-10-20T23:59:59+00:00"
generated_at: "2026-05-17T03:18:30.841749+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# NB Bancorp receives all regulatory approvals for Provident Bancorp acquisition; closing Nov 14, 2025

## Summary
- All regulatory approvals for Needham's acquisition of Provident have been received.
- Merger expected to close on or about November 14, 2025.
- Provident stockholders approved the merger on September 16, 2025.
- Deal was originally announced June 5, 2025.

## SEC filing metadata
- accession: 0001104659-25-100844
- form_type: 8-K
- ticker: NBBK
- cik: 0001979330
- company_name: NB Bancorp, Inc.
- filed_at: 2025-10-20T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1979330/000110465925100844/0001104659-25-100844-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1979330/000110465925100844/tm2529112d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-100844
- JSON: https://secwatch.observer/filing/0001104659-25-100844.json
- Plain text: https://secwatch.observer/filing/0001104659-25-100844.txt

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