{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-26-001845","form_type":"8-K","ticker":"ABCP","cik":"0000020639","company_name":"AmBase Corp","filed_at":"2026-01-21T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.139222+00:00","generated_at":"2026-05-16T09:22:17.852818+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"medium","headline":"AmBase: Joseph R. Bianco ceased as employee effective Jan 1, 2026","bullets":["Joseph R. Bianco left the company effective January 1, 2026; no reason or replacement given.","Item 5.02 filing indicates departure of a director or principal officer, but title not specified.","No exhibit filed; limited information available on circumstances or succession."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-26-001845","json":"https://secwatch.observer/filing/0001140361-26-001845.json","markdown":"https://secwatch.observer/filing/0001140361-26-001845.md","text":"https://secwatch.observer/filing/0001140361-26-001845.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/20639/000114036126001845/0001140361-26-001845-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/20639/000114036126001845/ef20063015_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T09:22:17.852818+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"}