{"schema_version":"secwatch.filing_event.v1","accession":"0001560385-23-000050","form_type":"8-K","ticker":"FWONA","cik":"0001560385","company_name":"Liberty Media Corp","filed_at":"2023-10-26T23:59:59+00:00","discovered_at":"2026-05-14T18:03:29.521731+00:00","generated_at":"2026-06-09T08:32:25.455680+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Liberty Media Chief Corporate Development Officer to retire Jan 1, 2024","bullets":["Albert E. Rosenthaler will retire as Chief Corporate Development Officer effective January 1, 2024.","He will become Senior Advisor and remain a resource to Liberty Media and its portfolio companies.","Rosenthaler served over 20 years with the Company and its predecessors."],"urls":{"canonical":"https://secwatch.observer/filing/0001560385-23-000050","json":"https://secwatch.observer/filing/0001560385-23-000050.json","markdown":"https://secwatch.observer/filing/0001560385-23-000050.md","text":"https://secwatch.observer/filing/0001560385-23-000050.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1560385/000156038523000050/0001560385-23-000050-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1560385/000156038523000050/lmca-20231020x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-09T08:32:25.455680+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":"2667cb4ebd","claim":"Albert E. Rosenthaler departed as Chief Corporate Development Officer at Liberty Media Corp.","evidence_excerpt":"On October 20, 2023, Albert E. Rosenthaler notified Liberty Media Corporation (the “Company”) of his intention to retire from his position as Chief Corporate Development Officer of the Company, effective January 1, 2024, after over 20 years with the Company and its predecessors.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1560385/000156038523000050/0001560385-23-000050-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"Chief Corporate Development Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}