{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-26-037240","form_type":"8-K","ticker":"NBTB","cik":"0000790359","company_name":"NBT BANCORP INC","filed_at":"2026-09-21T20:15:13+00:00","discovered_at":"2026-09-21T20:16:00.268596+00:00","generated_at":"2026-09-21T20:16:26.239686+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"NBT Bancorp appoints Kimberly A. Boynton to board, effective Oct 1, 2026","bullets":["Board size increased to 13 directors; Boynton fills newly created vacancy effective Oct 1, 2026.","Boynton is former CEO of Crouse Health (2014-2023); currently real estate agent at Cushman & Wakefield | Pyramid.","Expected to serve on Audit, Compensation & Benefits, and Risk Management committees.","No related-party transactions; only standard director compensation and prorated RSUs/retainers.","Board determined she meets Nasdaq independence standards."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-26-037240","json":"https://secwatch.observer/filing/0001140361-26-037240.json","markdown":"https://secwatch.observer/filing/0001140361-26-037240.md","text":"https://secwatch.observer/filing/0001140361-26-037240.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/790359/000114036126037240/0001140361-26-037240-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/790359/000114036126037240/ef20082455_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-09-21T20:16:26.239686+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"}