---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-045039"
form_type: "8-K"
ticker: "MASI"
cik: "0000937556"
company_name: "MASIMO CORP"
filed_at: "2025-05-06T23:59:59+00:00"
generated_at: "2026-05-22T15:59:12.812995+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Masimo to sell Sound United consumer audio business to HARMAN for $350M cash

## Summary
- Sale to HARMAN, a Samsung subsidiary, for $350M in cash, subject to adjustments.
- Divestiture supports Masimo's strategic refocus on core professional healthcare business.
- Expected to close by end of 2025, pending regulatory approvals and customary conditions.
- Sound United brands include Bowers & Wilkins, Denon, Marantz.
- Centerview Partners and Morgan Stanley acted as financial advisors to Masimo.

## SEC filing metadata
- accession: 0001104659-25-045039
- form_type: 8-K
- ticker: MASI
- cik: 0000937556
- company_name: MASIMO CORP
- filed_at: 2025-05-06T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/937556/000110465925045039/0001104659-25-045039-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/937556/000110465925045039/tm2514064d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-045039
- JSON: https://secwatch.observer/filing/0001104659-25-045039.json
- Plain text: https://secwatch.observer/filing/0001104659-25-045039.txt

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