---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-24-057427"
form_type: "8-K"
ticker: "MASI"
cik: "0000937556"
company_name: "MASIMO CORP"
filed_at: "2024-07-01T23:59:59+00:00"
generated_at: "2026-06-01T00:22:18.011560+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Masimo COO conditional resignation letter if CEO Kiani removed due to activist Politan

## Summary
- Bilal Muhsin (COO) sent a conditional resignation letter on June 26, 2024, stating he will resign if Joe Kiani is removed as Chairman and CEO.
- Muhsin cites 'false accusations' from activist Politan and says he will not stay if Quentin Koffey and Politan take control.
- Muhsin's resignation is not due to any disagreement with company operations; it's a protest against potential control change.
- The company also disclosed ongoing discussions with a potential JV partner about acquiring a majority of its consumer business (no specifics).

## SEC filing metadata
- accession: 0001213900-24-057427
- form_type: 8-K
- ticker: MASI
- cik: 0000937556
- company_name: MASIMO CORP
- filed_at: 2024-07-01T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/937556/000121390024057427/0001213900-24-057427-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/937556/000121390024057427/ea0208758-8k_masimo.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-24-057427
- JSON: https://secwatch.observer/filing/0001213900-24-057427.json
- Plain text: https://secwatch.observer/filing/0001213900-24-057427.txt

## Key facts
- Executive change
  Bilal Muhsin resigned as Chief Operating Officer at MASIMO CORP.
  - Action: resigned
  - Role: Chief Operating Officer
  source text: On June 26, 2024, Bilal Muhsin, the Chief Operating Officer of Masimo Corporation (the “Company”) sent a letter (the “Muhsin Conditional Resignation Letter”) to Craig Reynolds, the Lead Independent Director of the Company’s Board of Directors, notifying Mr. Reynolds of Mr. Mushin’s intent to resign as the Company’s Chief Operating Officer in the event that Joe Kiani is removed as the Company’s Chairman of the Board and Chief Executive Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000121390024057427/0001213900-24-057427-index.htm

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