{"schema_version":"secwatch.filing_event.v1","accession":"0000937556-25-000127","form_type":"8-K","ticker":"MASI","cik":"0000937556","company_name":"MASIMO CORP","filed_at":"2025-08-19T23:59:59+00:00","discovered_at":"2026-05-14T18:02:46.742552+00:00","generated_at":"2026-05-17T11:42:33.969931+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Director William Jellison resigns from Masimo board effective August 18, 2025","bullets":["William Jellison resigned from the Board of Directors effective August 18, 2025.","Resignation was not due to any disagreement with the company on operations, policies, or practices.","Board Chairman Michelle Brennan thanked Jellison for his service during a transformative period.","No replacement has been announced at this time."],"urls":{"canonical":"https://secwatch.observer/filing/0000937556-25-000127","json":"https://secwatch.observer/filing/0000937556-25-000127.json","markdown":"https://secwatch.observer/filing/0000937556-25-000127.md","text":"https://secwatch.observer/filing/0000937556-25-000127.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/937556/000093755625000127/0000937556-25-000127-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/937556/000093755625000127/masi-20250818.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T11:42:33.969931+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"}