{"schema_version":"secwatch.filing_event.v1","accession":"0001558370-25-006629","form_type":"8-K","ticker":"NBBK","cik":"0001979330","company_name":"NB Bancorp, Inc.","filed_at":"2025-05-07T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.614906+00:00","generated_at":"2026-05-22T09:24:15.562336+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"NB Bancorp authorizes 2nd stock repurchase plan for up to 5% of shares outstanding","bullets":["Plan authorizes repurchase of up to 2,028,522 shares, approx. 5.0% of outstanding shares.","Second buyback plan since mutual-to-stock conversion and IPO in December 2023.","Shares may be repurchased in open market, private transactions, or under Rule 10b5-1 plans.","Repurchases subject to market conditions, stock price, capital uses, and management discretion.","Plan may be suspended, terminated, or modified at any time; no obligation to repurchase any shares."],"urls":{"canonical":"https://secwatch.observer/filing/0001558370-25-006629","json":"https://secwatch.observer/filing/0001558370-25-006629.json","markdown":"https://secwatch.observer/filing/0001558370-25-006629.md","text":"https://secwatch.observer/filing/0001558370-25-006629.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1979330/000155837025006629/0001558370-25-006629-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1979330/000155837025006629/nbbk-20250507x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-22T09:24:15.562336+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"}