{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-198401","form_type":"8-K","ticker":"SPHR","cik":"0001795250","company_name":"Sphere Entertainment Co.","filed_at":"2025-09-08T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.017942+00:00","generated_at":"2026-05-17T07:39:28.443379+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Sphere Entertainment subsidiary CEO Andrea Greenberg departs after agreement expires","bullets":["Andrea Greenberg left as President & CEO of MSG Networks on Sept 2, 2025, following employment contract expiration.","Company agreed to accelerate vesting of her RSUs/PSUs scheduled for Sept 15, 2025.","Greenberg will receive payment equal to her 2025 target bonus in lieu of fiscal-year incentive.","Sphere waived the non-compete covenant in Greenberg's employment agreement."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-198401","json":"https://secwatch.observer/filing/0001193125-25-198401.json","markdown":"https://secwatch.observer/filing/0001193125-25-198401.md","text":"https://secwatch.observer/filing/0001193125-25-198401.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1795250/000119312525198401/0001193125-25-198401-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1795250/000119312525198401/d94194d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T07:39:28.443379+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"}