{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-097778","form_type":"8-K","ticker":"NBBK","cik":"0001979330","company_name":"NB Bancorp, Inc.","filed_at":"2025-10-08T23:59:59+00:00","discovered_at":"2026-05-14T18:02:41.201664+00:00","generated_at":"2026-05-17T04:21:45.177776+00:00","sec_items":["8.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"NB Bancorp distributes stock/cash election forms for Provident merger; closing targeted Nov 15","bullets":["Exchange agent mailed election forms Oct 7; deadline Nov 7 at 5pm ET (ESOP/401k Oct 31).","Merger consideration: 0.691 NBBK shares or $13.00 cash per PVBC share, subject to 50/50 allocation.","Needham anticipates all regulatory approvals by Nov 14 and closing on Nov 15, 2025.","Provident stockholders who do not elect will receive consideration based on proration.","Questions to Alliance Advisors at 855-206-1249 or NBBK@allianceadvisors.com."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-097778","json":"https://secwatch.observer/filing/0001104659-25-097778.json","markdown":"https://secwatch.observer/filing/0001104659-25-097778.md","text":"https://secwatch.observer/filing/0001104659-25-097778.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1979330/000110465925097778/0001104659-25-097778-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1979330/000110465925097778/tm2528219d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T04:21:45.177776+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}