{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-24-040915","form_type":"8-K","ticker":"MASI","cik":"0000937556","company_name":"MASIMO CORP","filed_at":"2024-05-08T23:59:59+00:00","discovered_at":"2026-05-14T18:03:22.559687+00:00","generated_at":"2026-06-02T15:13:46.041474+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 Rolf Classon resigns from Masimo board for health reasons; Robert Chapek appointed to Audit Committee","bullets":["Rolf Classon notified Board on May 3, 2024 of resignation effective May 10, 2024 for personal health reasons.","Resignation not due to any disagreement with Masimo's operations, policies, or practices.","Robert Chapek appointed as member of Audit Committee effective May 8, 2024.","Classon's departure reduces Board size; no other committee changes disclosed."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-24-040915","json":"https://secwatch.observer/filing/0001213900-24-040915.json","markdown":"https://secwatch.observer/filing/0001213900-24-040915.md","text":"https://secwatch.observer/filing/0001213900-24-040915.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/937556/000121390024040915/0001213900-24-040915-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/937556/000121390024040915/ea0205600-8k_masimo.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-02T15:13:46.041474+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":"22ec273fb7","claim":"Rolf Classon resigned as Director at MASIMO CORP.","evidence_excerpt":"on May 3, 2024, Rolf Classon notified Masimo’s Board of Directors (the “Board”) of Mr. Classon’s decision to resign from the Board and the Audit Committee of the Board (the “Audit Committee”), effective as of May 10, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/937556/000121390024040915/0001213900-24-040915-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}