Masimo Corporation (MASI) Stock

DelistedNasdaq: MASIMasimo Corporation engages in the development, manufacture, and marketing of various patient monitoring technologies, and automation and connectivity solutions worldwide.

179.95
Final close · Jun 9, 2026

MASI is no longer traded. Masimo was acquired by Danaher (DHR) in June 2026.

Prices on this page are historical; the last trade was June 9, 2026 at $179.95.

See Danaher (DHR) stock →

Masimo stock price history

Split-adjusted closes, 2007–2026

MASI final trading statistics

Final close
$179.95
Final trading day
Jun 9, 2026
Market cap at delisting
$9.42B
Shares outstanding
52.37M
Final 52-week range
$125.94 – $179.99
Avg. volume (final 3 mo.)
1,112,371
All-time high (split-adj.)
$303.29 · Nov 2021
All-time low (split-adj.)
$16.95 · Aug 2007
Return since IPO
+893.2%
Beta
1.10
Book value / share
$15.06
Price / book
11.94
Final 52 wk
125.94179.99

Masimo earnings per share

Earnings per share

Masimo revenue & net income

RevenueNet income

Masimo annual financials

Masimo Corporation revenue, net income and EPS by fiscal year
Fiscal yearRevenueNet incomeEPS
FY2025$1.53B-$151.5M$5.32
FY2024$2.09B-$304.9M$4.29
FY2023$2.05B$81.5M$3.18
FY2022$2.04B$143.5M$4.60
FY2021$1.24B$229.6M$3.99

Last five fiscal years reported before the delisting; fiscal year ending December. EPS is adjusted (non-GAAP) EPS as reported. Source: company filings via EODHD.

About Masimo Corporation

Masimo Corporation engages in the development, manufacture, and marketing of various patient monitoring technologies, and automation and connectivity solutions worldwide. It offers Masimo Signal Extraction Technology (SET) pulse oximetry with measure-through motion and low perfusion pulse oximetry monitoring to address the primary limitations of conventional pulse oximetry; Masimo Rainbow SET platform, including rainbow SET Pulse CO-Oximetry products that allows noninvasive monitoring of oxygen, carboxyhemoglobin, and methemoglobin. It also provides brain function and hemodynamic monitoring solutions; patient position and activity tracking, and neuromodulation technology solutions; and Masimo Hospital Automation platform, including hospital automation solutions, including Patient SafetyNet, Iris, iSirona, Replica, and UniView; and brain function monitoring, hemodynamic monitoring, regional oximetry, acoustic respiration rate monitoring, capnography and gas monitoring, and telehealth solutions. In addition, the company provides its products through direct sales force, distributors, and original equipment manufacturers partners to hospitals, emergency medical service and home care providers, long-term care facilities, physician offices, veterinarians, and consumers. Masimo Corporation was incorporated in 1989 and is headquartered in Irvine, California.

Masimo stock FAQ

What happened to Masimo stock?

Masimo was acquired by Danaher (DHR) in June 2026. MASI stock stopped trading on the Nasdaq, with a final close of $179.95 on June 9, 2026.

Is MASI stock still trading?

No. MASI was delisted from the Nasdaq in June 2026 and no longer trades on a U.S. exchange.

What was the last price of MASI stock?

MASI closed at $179.95 on its final trading day, June 9, 2026, for a market value of about $9.42B.

What were Masimo's revenue and earnings in its last full fiscal year?

Masimo reported revenue of $1.53B and net income of -$151.5M in fiscal 2025, its last full year as a public company.

When did Masimo go public?

Masimo Corporation stock began trading on August 8, 2007.

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