---
schema_version: "secwatch.filing_event.v1"
accession: "0000937556-25-000091"
form_type: "8-K"
ticker: "MASI"
cik: "0000937556"
company_name: "MASIMO CORP"
filed_at: "2025-06-12T23:59:59+00:00"
generated_at: "2026-05-19T12:19:02.928739+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Masimo adds CMO, President Japan/APAC, CHRO; COO Muhsin resigns effective July 1

## Summary
- Tim Benner joins as Chief Marketing and Strategy Officer, started June 9, 2025.
- Huimin Wang joins as President, Japan & Asia Pacific, started May 13, 2025.
- Lisa Hellmann joins as Chief Human Resources Officer, started April 21, 2025.
- CFO Micah Young assumes corporate development in addition to finance, IT, IR.
- COO Bilal Muhsin resigns effective July 1, 2025; role will not be replaced.

## SEC filing metadata
- accession: 0000937556-25-000091
- form_type: 8-K
- ticker: MASI
- cik: 0000937556
- company_name: MASIMO CORP
- filed_at: 2025-06-12T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/937556/000093755625000091/0000937556-25-000091-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/937556/000093755625000091/masi-20250606.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000937556-25-000091
- JSON: https://secwatch.observer/filing/0000937556-25-000091.json
- Plain text: https://secwatch.observer/filing/0000937556-25-000091.txt

## Key facts
- Executive change
  Micah Young changed role as Chief Financial Officer at MASIMO CORP.
  - Action: assumed
  - Role: Chief Financial Officer
  source text: Micah Young, Chief Financial Officer, has recently assumed leadership of the corporate development function in addition to his responsibilities overseeing finance, IT and investor relations.
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000093755625000091/0000937556-25-000091-index.htm
- Executive change
  Bilal Muhsin resigned as Chief Operating Officer at MASIMO CORP.
  - Action: resigned
  - Role: Chief Operating Officer
  source text: On June 6, 2025, Bilal Muhsin, Chief Operating Officer, informed the Company he was resigning to pursue other opportunities, effective July 1, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000093755625000091/0000937556-25-000091-index.htm
- Executive change
  Huimin Wang was appointed as President, Japan & Asia Pacific at MASIMO CORP.
  - Action: joined
  - Role: President, Japan & Asia Pacific
  source text: Huimin Wang has joined as President, Japan & Asia Pacific and started on May 13, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000093755625000091/0000937556-25-000091-index.htm
- Executive change
  Tim Benner was appointed as Chief Marketing and Strategy Officer at MASIMO CORP.
  - Action: joined
  - Role: Chief Marketing and Strategy Officer
  source text: Tim Benner has joined as Chief Marketing and Strategy Officer and started on June 9, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000093755625000091/0000937556-25-000091-index.htm
- Executive change
  Lisa Hellmann was appointed as Chief Human Resources Officer at MASIMO CORP.
  - Action: joined
  - Role: Chief Human Resources Officer
  source text: Lisa Hellmann has joined as Chief Human Resources Officer and started on April 21, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000093755625000091/0000937556-25-000091-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.