{"schema_version":"secwatch.filing_event.v1","accession":"0001558370-25-000317","form_type":"8-K","ticker":"NBBK","cik":"0001979330","company_name":"NB Bancorp, Inc.","filed_at":"2025-01-22T23:59:59+00:00","discovered_at":"2026-05-14T18:03:05.706531+00:00","generated_at":"2026-05-27T21:14:38.722917+00:00","sec_items":["2.02","8.01","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"NB Bancorp Q4 net income $15.6M ($0.40), up from $8.4M; announces first share repurchase of up to 5% of shares","bullets":["Net income of $15.6M ($0.40 diluted EPS) vs $8.4M ($0.21) prior quarter; operating net income $13.3M ($0.34).","Net interest margin expanded 1bp to 3.52%; loans grew 2.0% to $4.33B; deposits grew 3.3%.","Tangible book value per share rose to $17.89 from $17.48.","Board authorized share repurchase of up to 2,135,286 shares (5% of outstanding) - first such program.","Non-performing loans decreased to $13.9M from $16.0M; net charge-offs fell to $479K from $5.2M."],"urls":{"canonical":"https://secwatch.observer/filing/0001558370-25-000317","json":"https://secwatch.observer/filing/0001558370-25-000317.json","markdown":"https://secwatch.observer/filing/0001558370-25-000317.md","text":"https://secwatch.observer/filing/0001558370-25-000317.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1979330/000155837025000317/0001558370-25-000317-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1979330/000155837025000317/nbbk-20250122x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T21:14:38.722917+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"}