{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-23-012685","form_type":"8-K","ticker":"NBTB","cik":"0000790359","company_name":"NBT BANCORP INC","filed_at":"2023-03-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:48.096730+00:00","generated_at":"2026-06-17T22:39:18.397640+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"NBT Bancorp director Joseph A. Santangelo to retire after May 16, 2023 annual meeting","bullets":["Joseph A. Santangelo notified boards of NBT Bancorp and NBT Bank of his retirement, effective after the annual meeting on May 16, 2023.","Director served since 2001; retirement is personal and not due to any disagreement with management or the board.","No replacement has been announced as of the filing date."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-23-012685","json":"https://secwatch.observer/filing/0001140361-23-012685.json","markdown":"https://secwatch.observer/filing/0001140361-23-012685.md","text":"https://secwatch.observer/filing/0001140361-23-012685.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/790359/000114036123012685/0001140361-23-012685-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/790359/000114036123012685/brhc10050026_8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-17T22:39:18.397640+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":[{"claim_id":"11f667bd31","claim":"Joseph A. Santangelo departed as Director at NBT BANCORP INC.","evidence_excerpt":"On March 20, 2023, Joseph A. Santangelo, Director of NBT Bancorp Inc. and NBT Bank, National Association, notified the Board of Directors of each entity of his retirement from the Boards.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/790359/000114036123012685/0001140361-23-012685-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retirement"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}