{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-26-008936","form_type":"8-K","ticker":"ON","cik":"0001097864","company_name":"ON SEMICONDUCTOR CORP","filed_at":"2026-03-11T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.536006+00:00","generated_at":"2026-05-15T14:41:04.501370+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Simon Keeton to step down as Group President of Power Solutions Group at onsemi","bullets":["Simon Keeton, Group President, Power Solutions Group, will resign effective June 30, 2026.","He will step down from officer positions immediately but remain through June 30 for transition.","Keeton joined onsemi in July 2007 and held the role since February 2024.","No replacement for Group President, Power Solutions Group, has been announced."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-26-008936","json":"https://secwatch.observer/filing/0001140361-26-008936.json","markdown":"https://secwatch.observer/filing/0001140361-26-008936.md","text":"https://secwatch.observer/filing/0001140361-26-008936.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1097864/000114036126008936/0001140361-26-008936-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1097864/000114036126008936/ef20067528_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T14:41:04.501370+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"}