---
schema_version: "secwatch.filing_event.v1"
accession: "0000937556-23-000217"
form_type: "8-K"
ticker: "MASI"
cik: "0000937556"
company_name: "MASIMO CORP"
filed_at: "2023-11-07T23:59:59+00:00"
generated_at: "2026-06-08T18:46:21.025633+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Masimo appoints Rolf Classon to board of directors

## Summary
- Rolf A. Classon appointed as a Class II director effective November 3, 2023.
- Classon is a former Bayer HealthCare executive with board seats at Fresenius Medical Care, Catalent, and others.
- Annual cash compensation of $70,000 plus initial RSU grant valued at $200,000 at next annual meeting.
- No family relationships or related-party transactions with Masimo officers/directors.
- Classon will help shape next stage of growth, per Chairman and CEO Joe Kiani.

## SEC filing metadata
- accession: 0000937556-23-000217
- form_type: 8-K
- ticker: MASI
- cik: 0000937556
- company_name: MASIMO CORP
- filed_at: 2023-11-07T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/937556/000093755623000217/0000937556-23-000217-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/937556/000093755623000217/masi-20231103.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000937556-23-000217
- JSON: https://secwatch.observer/filing/0000937556-23-000217.json
- Plain text: https://secwatch.observer/filing/0000937556-23-000217.txt

## Key facts
- Executive change
  Rolf A. Classon was appointed as Class II Director at MASIMO CORP.
  - Action: appointed
  - Role: Class II Director
  source text: On November 3, 2023, the Board of Directors (the “Board”) of Masimo Corporation (“Masimo”) appointed Rolf A. Classon as a Class II director of Masimo.
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000093755623000217/0000937556-23-000217-index.htm

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