---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-054512"
form_type: "8-K"
ticker: "MASI"
cik: "0000937556"
company_name: "MASIMO CORP"
filed_at: "2026-05-04T23:59:59+00:00"
generated_at: "2026-05-15T00:11:20.978426+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Masimo shareholders approve Danaher acquisition at $180/share

## Summary
- Merger adoption proposal passed: 36,981,681 for (99.95% of votes cast), 17,061 against.
- Each Masimo share will convert into $180.00 cash; deal expected to close in 2026.
- Advisory compensation proposal approved: 34,561,175 for, 1,993,422 against.
- Closing remains subject to customary conditions, including regulatory approvals.

## SEC filing metadata
- accession: 0001104659-26-054512
- form_type: 8-K
- ticker: MASI
- cik: 0000937556
- company_name: MASIMO CORP
- filed_at: 2026-05-04T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 5.07, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/937556/000110465926054512/0001104659-26-054512-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/937556/000110465926054512/tm2612557d3_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-054512
- JSON: https://secwatch.observer/filing/0001104659-26-054512.json
- Plain text: https://secwatch.observer/filing/0001104659-26-054512.txt

## Key facts
- Shareholder Votes
  MASIMO CORP shareholders approved To adopt the Merger Agreement at the 2026-05-01 meeting.
  - Proposal: merger approval
  - Outcome: passed
  - Meeting: 2026-05-01
  source text: Proposal No. 1: To adopt the Merger Agreement (the “ Merger Agreement Proposal ”). The Merger Agreement Proposal was approved by the votes indicated below: For Against Abstentions 36,981,681 17,061 14,035
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000110465926054512/0001104659-26-054512-index.htm
- Shareholder Votes
  MASIMO CORP shareholders approved To approve, on a non-binding, advisory basis, the compensation that may be paid or become payable to the named executive officers of the Company that is based on or otherwise relates to the Merger at the 2026-05-01 meeting.
  - Proposal: say on pay
  - Outcome: passed
  - Meeting: 2026-05-01
  source text: Proposal No. 2: To approve, on a non-binding, advisory basis, the compensation that may be paid or become payable to the named executive officers of the Company that is based on or otherwise relates to the Merger (the “ Compensation Proposal ”). The Compensation Proposal was approved by the votes indicated below: For Against Abstentions 34,561,175 1,993,422 458,180
  evidence_url: https://www.sec.gov/Archives/edgar/data/937556/000110465926054512/0001104659-26-054512-index.htm

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