{"schema_version":"secwatch.filing_event.v1","accession":"0001829126-24-007083","form_type":"8-K","ticker":"ADNH","cik":"0001744494","company_name":"ADVENT TECHNOLOGIES HOLDINGS, INC.","filed_at":"2024-10-29T23:59:59+00:00","discovered_at":"2026-05-14T18:03:09.436001+00:00","generated_at":"2026-05-30T09:20:16.566598+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 terminates Chief Strategy Officer Christos Kaskavelis for cause","bullets":["Christos Kaskavelis terminated as Chief Strategy Officer effective October 29, 2024, for cause.","Termination approved by Board of Directors; no successor named.","Interim CEO Gary Herman signed the 8-K; CSO duties likely absorbed by remaining executives."],"urls":{"canonical":"https://secwatch.observer/filing/0001829126-24-007083","json":"https://secwatch.observer/filing/0001829126-24-007083.json","markdown":"https://secwatch.observer/filing/0001829126-24-007083.md","text":"https://secwatch.observer/filing/0001829126-24-007083.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1744494/000182912624007083/0001829126-24-007083-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1744494/000182912624007083/adventtech_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T09:20:16.566598+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":"2fb1694520","claim":"Christos Kaskavelis was terminated as Chief Strategy Officer at ADVENT TECHNOLOGIES HOLDINGS, INC..","evidence_excerpt":"approved the termination of the employment of Christos Kaskavelis, Chief Strategy Officer of the Company, for cause, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1744494/000182912624007083/0001829126-24-007083-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"terminated"},{"label":"Role","value":"Chief Strategy Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}