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NASDAQ: MASI
Masimo Corp Stock Ownership - Who owns Masimo?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Masimo Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Anand SampathEVP Ops Clinical Research2026-01-2830,000$37.84
$1.14MBuy
Anand SampathEVP Ops Clinical Research2026-01-28196$138.09
$27.07kSell
Anand SampathEVP Ops Clinical Research2026-01-286,560$137.22
$900.16kSell
Anand SampathEVP Ops Clinical Research2026-01-2811,924$136.56
$1.63MSell
Omar AhmedCTIO EVP of Engineering2025-11-132,474$152.43
$377.11kBuy
Blair TripodiCOO Consumer Division2025-09-2315,000$142.13
$2.13MBuy
Michelle BrennanDirector2025-08-13100$155.25
$15.53kBuy
Michelle BrennanDirector2025-08-12100$150.35
$15.04kBuy
William R. JellisonDirector2025-08-113,000$145.98
$437.94kBuy
Bilal MuhsinChief Operating Officer2025-05-1210,000$34.51
$345.10kBuy

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Net Insider Buy/Sell (L12M) Ownership

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MASI Shareholders

What type of owners hold Masimo Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc19.29%10,361,091$1.44BInstitution
Fmr LLC15.29%8,213,721$1.14BInstitution
Vanguard Group Inc8.95%4,810,011$669.31MInstitution
Politan Capital Management LP8.54%4,589,648$638.65MInsider
Politan Capital Management LP8.54%4,589,648$638.65MInstitution
Joe E. Kiani6.01%3,226,230$448.93MInsider
Massachusetts Financial Services Co4.88%2,619,960$364.57MInstitution
T Rowe Price Investment Management Inc3.96%2,126,763$295.94MInstitution
Capital Research Global Investors3.45%1,854,128$258.00MInstitution
State Street Corp2.76%1,484,471$206.56MInstitution

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MASI vs Medical Device Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MASI84.74%15.26%Net BuyingNet Buying
BIO23.66%76.34%Net Selling
GKOS65.69%34.31%Net SellingNet Selling
BRKR54.04%45.96%Net BuyingNet Buying
IRTC77.76%22.24%Net SellingNet Selling
View Top Medical Device Stocks

Masimo Stock Ownership FAQ

Who owns Masimo?

Masimo (NASDAQ: MASI) is owned by 104.58% institutional shareholders, 18.84% Masimo insiders, and 0.00% retail investors. Politan Capital Management LP is the largest individual Masimo shareholder, owning 4.59M shares representing 8.54% of the company. Politan Capital Management LP's Masimo shares are currently valued at $638.65M.

If you're new to stock investing, here's how to buy Masimo stock.
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