MASI
Masimo Corporation

MASI.US masimo.com + Research + Basket
Healthcare · Medical Devices
CIK 0000937556
Employees 2,200
Phone 949 297 7000
Fiscal year end December
IPO Aug 08, 2007
Address 52 Discovery, Irvine, CA, United States, 92618
Price N/A
USD · NASDAQ
52-week range
125.94
179.99
Market Cap
9.42B
P/E Ratio
44.43
Forward P/E
40.82
Book Value
15.07
Div. Yield
N/A
% Institutions
104.78%
% Insiders
6.22%
1 Year

+8.8%
3 Year

+12.5%
10 Year

+249.1%
Description
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.
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People

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Directors & Officers

Name	Title	Year Born
Ms. Catherine M. Szyman	CEO & Director	1967
Mr. Micah Young CPA	Executive VP & CFO	1979
Mr. Anand Sampath	Executive Vice President of Operations	1966
Mr. Charles Dadswell	Executive VP & General Counsel	1959
Mr. Greg Meehan	Chief Commercial Officer	1964
Mr. Paul Hataishi	Senior VP & Chief Accounting Officer	1975
Mr. Yongsam Lee	Executive VP & Chief Information Officer	1965
Dr. Steven J. Barker	Chairman of Scientific Advisory Board & Chief Science Officer	1945
Mr. Matthew Brinckman	Senior Vice President of FP&A and Investor Relations	NA
Mr. Tim A. Benner	Chief Marketing & Strategy Officer	1968
Insider Trading

Open insider trading
Date	Insider Name	Title	Transaction Type	Shares	Price	Value	SEC
Sep 26, 2025	Kevin Hern	N/A	Sale	N/A	$141.40	N/A	—
Aug 12, 2025	Michelle Brennan	N/A	Purchase	100.00	$150.35	$15.04K	SEC
Aug 11, 2025	William R Jellison	N/A	Purchase	3.00K	$145.98	$437.94K	SEC
May 12, 2025	Bilal Muhsin	N/A	Sale	10.00K	$163.28	$1.63M	SEC
Shareholders

▼
Institutional Holders

Holder Name	Shares	Date Reported	% Out	Value	% Change
BlackRock Inc	4.64M	Mar 31, 2026	8.87%	$0.01	-47.55%
Politan Capital Management LP	4.59M	Mar 31, 2026	8.76%	$82.89	0.00%
Vanguard Group Inc	4.35M	Dec 31, 2025	8.30%	$0.01	-9.59%
Pentwater Capital Management LP	3.18M	Mar 31, 2026	6.07%	$2.93	0.00%
Barclays PLC	2.74M	Mar 31, 2026	5.24%	$0.12	4,601.99%
HBK INVESTMENTS L P	2.58M	Mar 31, 2026	4.92%	$4.65	0.00%
Massachusetts Financial Services Company	2.34M	Mar 31, 2026	4.47%	$0.14	-12.05%
Vanguard Capital Management, LLC	2.05M	Mar 31, 2026	3.91%	$0.01	0.00%
Vanguard Portfolio Management, LLC	2.01M	Mar 31, 2026	3.83%	$0.02	0.00%
FMR Inc	1.45M	Mar 31, 2026	2.77%	$0.01	-81.55%
State Street Corp	1.44M	Mar 31, 2026	2.75%	$0.01	1.59%
Millennium Management LLC	988.85K	Mar 31, 2026	1.89%	$0.07	426.08%
The Goldman Sachs Group Inc	984.19K	Mar 31, 2026	1.88%	$0.02	54.58%
Geode Capital Management, LLC	956.74K	Mar 31, 2026	1.83%	$0.01	0.29%
AQR Capital Management LLC	831.97K	Mar 31, 2026	1.59%	$0.07	-23.77%
Balyasny Asset Management LLC	770.99K	Mar 31, 2026	1.47%	$0.18	0.00%
Morgan Stanley - Brokerage Accounts	752.42K	Mar 31, 2026	1.44%	$0.01	-18.28%
JPMorgan Chase & Co	572.65K	Mar 31, 2026	1.09%	$0.01	386.12%
Citigroup Inc	533.39K	Mar 31, 2026	1.02%	$0.04	339.98%
SG Americas Securities, LLC	522.82K	Mar 31, 2026	1.00%	$0.10	3,082.32%
Fund Holdings

Rank	Holder Name	Shares Held	% of Shares	Change	Date Reported
1	MFS Mid Cap Growth Equity	1.64M	3.12%	▼ 0.46%	Mar 31, 2026
2	MFS Mid Cap Growth A	1.64M	3.12%	▲ 0.00%	May 31, 2026
3	BlackRock Global Uncons Eq Z USD Acc	1.07M	2.04%	▼ 0.85%	Oct 31, 2025
4	BlackRock Event Driven Equity Instl	971.82K	1.86%	▲ 0.00%	May 31, 2026
5	BlackRock GlbUncons Eq Fd (UK) Z GBPAcc	445.25K	0.85%	▲ 0.68%	Oct 31, 2025
6	First Trust Merger Arbitrage Cl I	402.12K	0.77%	▲ 0.00%	Mar 31, 2026
7	MFS Mid Cap Growth fund Class 2	375.74K	0.72%	▲ 1.38%	May 31, 2026
8	State Street® SPDR® S&P MIDCAP 400® ETF	342.05K	0.65%	▼ 0.98%	May 31, 2026
9	American Funds SMALLCAP World A	317.33K	0.61%	▼ 43.89%	Mar 31, 2026
10	NexPoint Merger Arbitrage Z	297.50K	0.57%	▲ 0.00%	Mar 31, 2026
Financial Highlights

▼
Market Cap: $9.42B
EBITDA: $367.70M
P/E Ratio: $44.43
PEG Ratio: $4.83
Book Value: $15.07
Earnings/Share: $4.05
Profit Margin: 4.90%
Operating Margin: 23.61%
ROA (TTM): 10.20%
ROE (TTM): 24.99%
Revenue (TTM): $1.56B
Revenue/Share (TTM): $29.32
Earnings Growth (YOY): 214.40%
Revenue Growth (YOY): 8.50%
Valuation Metrics

Enterprise Value: $9.79B
Trailing P/E: 44.43
Forward P/E: 40.82
Shares Statistics

Shares Outstanding: 52.37M
Shares Float: 44.31M
% Insiders: 6.22%
% Institutions: 104.78%
Short % Float: 7.34%
Stock Price History

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Financial Charts

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Revenue, Net Income & Operating Cash Flow (Yearly)

Change % vs Prior Year

Revenue, Net Income & Operating Cash Flow (Quarterly)

Change % vs Prior Quarter

Operating Expenses (Yearly)

Operating Expenses (Quarterly)

Balance Sheet (Yearly)

Balance Sheet (Quarterly)

Assets Breakdown (Yearly)

Assets Breakdown (Quarterly)

Liabilities Breakdown (Yearly)

Liabilities Breakdown (Quarterly)

Income Statement Waterfall

▼
Line Item
Step Type
Value
Revenue
adjust
$1.53B
Cost of Goods Sold
adjust
$-581.70M
Gross Profit
subtotal
$945.20M
SG&A
adjust
$-506.00M
R&D
adjust
$-126.40M
Operating Income
subtotal
$312.80M
Other / Non-Operating Items
adjust
$-464.30M
Net Income
subtotal
$-151.50M
Earnings Per Share (EPS) History

▼
Financial Ratios

▼
📦 Raw API Data (JSON Explorer)

▼
Comprehensive raw data returned from the EOD Fundamentals API. Expand sections below to drill down.
{
    "General": {
        "Code": "MASI",
        "Type": "Common Stock",
        "Name": "Masimo Corporation",
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        "Description": "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.",
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                "change_p": 0
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                    "filing_date": "1998-12-31",
                    "currency_symbol": "USD",
                    "researchDevelopment": "3100000.00",
                    "effectOfAccountingCharges": null,
                    "incomeBeforeTax": "-7900000.00",
                    "minorityInterest": null,
                    "netIncome": "-8300000.00",
                    "sellingGeneralAdministrative": "3900000.00",
                    "sellingAndMarketingExpenses": null,
                    "grossProfit": "-1300000.00",
                    "reconciledDepreciation": null,
                    "ebit": "-7500000.00",
                    "ebitda": "-7000000.00",
                    "depreciationAndAmortization": "500000.00",
                    "nonOperatingIncomeNetOther": null,
                    "operatingIncome": "-7500000.00",
                    "otherOperatingExpenses": "10000000.00",
                    "interestExpense": "400000.00",
                    "taxProvision": null,
                    "interestIncome": null,
                    "netInterestIncome": null,
                    "extraordinaryItems": null,
                    "nonRecurring": null,
                    "otherItems": null,
                    "incomeTaxExpense": "400000.00",
                    "totalRevenue": "1700000.00",
                    "totalOperatingExpenses": "7000000.00",
                    "costOfRevenue": "3000000.00",
                    "totalOtherIncomeExpenseNet": "-400000.00",
                    "discontinuedOperations": null,
                    "netIncomeFromContinuingOps": null,
                    "netIncomeApplicableToCommonShares": null,
                    "preferredStockAndOtherAdjustments": null
                },
                "1997-12-31": {
                    "date": "1997-12-31",
                    "filing_date": "1998-03-31",
                    "currency_symbol": "USD",
                    "researchDevelopment": "3100000.00",
                    "effectOfAccountingCharges": null,
                    "incomeBeforeTax": "-6500000.00",
                    "minorityInterest": null,
                    "netIncome": "-6500000.00",
                    "sellingGeneralAdministrative": "2600000.00",
                    "sellingAndMarketingExpenses": null,
                    "grossProfit": "-1300000.00",
                    "reconciledDepreciation": null,
                    "ebit": "-6100000.00",
                    "ebitda": "-5700000.00",
                    "depreciationAndAmortization": "400000.00",
                    "nonOperatingIncomeNetOther": null,
                    "operatingIncome": "-6900000.00",
                    "otherOperatingExpenses": "7800000.00",
                    "interestExpense": "400000.00",
                    "taxProvision": null,
                    "interestIncome": null,
                    "netInterestIncome": null,
                    "extraordinaryItems": null,
                    "nonRecurring": null,
                    "otherItems": null,
                    "incomeTaxExpense": null,
                    "totalRevenue": "900000.00",
                    "totalOperatingExpenses": "5600000.00",
                    "costOfRevenue": "2200000.00",
                    "totalOtherIncomeExpenseNet": "400000.00",
                    "discontinuedOperations": null,
                    "netIncomeFromContinuingOps": null,
                    "netIncomeApplicableToCommonShares": null,
                    "preferredStockAndOtherAdjustments": null
                }
            }
        }
    }
}
Masimo Corporation

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