{"schema_version":"secwatch.filing_event.v1","accession":"0001829126-24-008371","form_type":"8-K/A","ticker":"ADNH","cik":"0001744494","company_name":"ADVENT TECHNOLOGIES HOLDINGS, INC.","filed_at":"2024-12-18T23:59:59+00:00","discovered_at":"2026-05-14T18:03:09.434781+00:00","generated_at":"2026-05-29T02:03:07.261820+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Advent Technologies clarifies former CEO Gregoriou also removed from board","bullets":["Vassilios Gregoriou terminated as CEO and Acting CFO effective Oct 24, 2024.","Gregoriou also removed from the Board of Directors on same date per employment agreement.","Gary Herman serving as CEO per signature block on December 18, 2024 filing.","Filing is an amendment to clarify board removal not previously disclosed.","Company ticker ADN; shares traded on Nasdaq."],"urls":{"canonical":"https://secwatch.observer/filing/0001829126-24-008371","json":"https://secwatch.observer/filing/0001829126-24-008371.json","markdown":"https://secwatch.observer/filing/0001829126-24-008371.md","text":"https://secwatch.observer/filing/0001829126-24-008371.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1744494/000182912624008371/0001829126-24-008371-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1744494/000182912624008371/adventtech_8ka.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T02:03:07.261820+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"}