{"schema_version":"secwatch.filing_event.v1","accession":"0000937556-25-000007","form_type":"8-K","ticker":"MASI","cik":"0000937556","company_name":"MASIMO CORP","filed_at":"2025-01-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:06.879830+00:00","generated_at":"2026-05-27T22:51:45.281731+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Masimo appoints Catherine Szyman as CEO, effective Feb 12; Michelle Brennan becomes Chairman","bullets":["Katie Szyman appointed CEO effective Feb 12; previously led Edwards Critical Care (acquired by BD); 35+ yrs experience.","Interim CEO Michelle Brennan becomes Chairman; Lead Independent Director Quentin Koffey becomes Vice Chairman.","Szyman compensation: $1M base salary, 100% target bonus, $7M annual LTI target; one-time buyout equity valued at $10M total.","Board continues strategic review of consumer audio and healthcare businesses, with Centerview, Morgan Stanley, Sullivan & Cromwell as advisors."],"urls":{"canonical":"https://secwatch.observer/filing/0000937556-25-000007","json":"https://secwatch.observer/filing/0000937556-25-000007.json","markdown":"https://secwatch.observer/filing/0000937556-25-000007.md","text":"https://secwatch.observer/filing/0000937556-25-000007.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/937556/000093755625000007/0000937556-25-000007-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/937556/000093755625000007/masi-20250117.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T22:51:45.281731+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":"10c550e8b7","claim":"Michelle Brennan was appointed as Chairman of the Board at MASIMO CORP.","evidence_excerpt":"has been appointed to the role of Chairman of the Board","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/937556/000093755625000007/0000937556-25-000007-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chairman of the Board"}],"fact_type":"executive_change"},{"claim_id":"569c81974b","claim":"Michelle Brennan departed as Interim Chief Executive Officer at MASIMO CORP.","evidence_excerpt":"Michelle Brennan will cease to serve as Interim Chief Executive Officer of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/937556/000093755625000007/0000937556-25-000007-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"ceased"},{"label":"Role","value":"Interim Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"c57c694a60","claim":"Catherine Szyman was appointed as Chief Executive Officer at MASIMO CORP.","evidence_excerpt":"appointed Catherine Szyman, 58, as Chief Executive Officer of the Company, effective as of February 12, 2025","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/937556/000093755625000007/0000937556-25-000007-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"ddd09ff511","claim":"Quentin Koffey was appointed as Vice-Chairman of the Board at MASIMO CORP.","evidence_excerpt":"Quentin Koffey will serve in the role of Vice-Chairman of the Board","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/937556/000093755625000007/0000937556-25-000007-index.htm","confidence":0.9,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Vice-Chairman of the Board"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}