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Masimo (MASI) Institutional Ownership

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$156.02 -2.92 (-1.84%)
Closing price 04:00 PM Eastern
Extended Trading
$154.28 -1.74 (-1.11%)
As of 04:10 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for Masimo (NASDAQ:MASI)

Current
Institutional Ownership
Percentage
85.96%
Number of
Institutional Buyers
(last 12 months)
235
Total
Institutional Inflows
(last 12 months)
$2.25B
Number of
Institutional Sellers
(last 12 months)
152
Total
Institutional Outflows
(last 12 months)
$1.36B
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MASI Institutional Buying and Selling by Quarter

Masimo Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/29/2025 Mutual of America Capital Management LLC22,379$3.77M0.0%-2.2%0.041%
7/29/2025 Nordea Investment Management AB31,868$5.33M0.0%+21.6%0.059%
7/28/2025 Bayforest Capital Ltd6,705$1.13M0.5%N/A0.012%
7/28/2025 TD Asset Management Inc167,176$28.12M0.0%+88.5%0.308%
7/28/2025 Wilson Asset Management International PTY Ltd.27,234$4.58M1.1%N/A0.050%
7/28/2025 Wilmington Savings Fund Society FSB9,950$1.67M0.0%-11.5%0.018%
7/28/2025 RFG Advisory LLC3,887$654K0.0%-42.7%0.007%
7/25/2025 Yousif Capital Management LLC15,641$2.63M0.0%-0.9%0.029%
7/25/2025 Allspring Global Investments Holdings LLC20,897$3.53M0.0%-45.4%0.039%
7/25/2025 CWM LLC931$157K0.0%-19.0%0.002%
7/25/2025 Vanguard Personalized Indexing Management LLC6,441$1.08M0.0%+12.7%0.012%
7/24/2025 US Bancorp DE4,170$701K0.0%-3.6%0.008%
7/23/2025 Vontobel Holding Ltd.1,282$216K0.0%-8.0%0.002%
7/23/2025 Louisiana State Employees Retirement System12,700$2.14M0.0%+2.4%0.023%
7/23/2025 KLP Kapitalforvaltning AS9,400$1.58M0.0%+5.6%0.017%
7/21/2025 Hilltop National Bank218$37K0.0%N/A0.000%
7/18/2025 Truist Financial Corp3,538$595K0.0%+10.6%0.007%
7/17/2025 Greenleaf Trust1,217$205K0.0%-7.4%0.002%
7/17/2025 HB Wealth Management LLC1,193$201K0.0%-6.1%0.002%
7/17/2025 Janney Montgomery Scott LLC1,681$283K0.0%-4.6%0.003%
7/17/2025 Avior Wealth Management LLC3,416$575K0.0%+14.6%0.006%
7/16/2025 State of Alaska Department of Revenue5,054$850K0.0%-2.9%0.009%
7/15/2025 Public Employees Retirement System of Ohio14,332$2.41M0.0%+4.4%0.026%
7/15/2025 Fifth Third Bancorp584$98K0.0%-9.9%0.001%
7/15/2025 Cardinal Capital Management20,237$3.40M0.5%+1.9%0.037%
7/11/2025 Assenagon Asset Management S.A.3,025$509K0.0%-30.9%0.006%
7/11/2025 Perpetual Ltd21,172$3.56M0.0%-29.9%0.039%
7/10/2025 Swedbank AB73,800$12.42M0.0%-2.8%0.136%
7/9/2025 Harbor Capital Advisors Inc.26,412$4.44M0.2%N/A0.049%
7/9/2025 Westmount Partners LLC25,866$4.35M1.2%-0.5%0.048%
7/8/2025 Parallel Advisors LLC297$50K0.0%-25.2%0.001%
7/1/2025 Harbor Investment Advisory LLC600$101K0.0%-38.1%0.001%
7/1/2025 Kera Capital Partners Inc.1,380$232K0.0%N/A0.003%
6/23/2025 Swedbank AB75,900$12.65M0.0%N/A0.140%
6/18/2025Voya Investment Management LLC12,274$2.05M0.0%-2.3%0.023%
5/28/2025Anderson Financial Strategies LLC295$49K0.0%N/A0.001%
5/28/2025Strs Ohio40,135$6.69M0.0%N/A0.074%
5/20/2025Intech Investment Management LLC32,494$5.41M0.1%+26.8%0.060%
5/19/2025Jane Street Group LLC2,050$342K0.0%-94.8%0.004%
5/19/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC189,130$31.51M0.0%-0.6%0.349%
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5/16/2025Woodline Partners LP132,969$22.15M0.1%+159.8%0.245%
5/16/2025Empowered Funds LLC2,864$477K0.0%-26.4%0.005%
5/16/2025Logan Capital Management Inc.42,395$7.06M0.3%-11.3%0.078%
5/16/2025United Services Automobile Association2,912$476K0.0%N/A0.005%
5/16/2025Great Lakes Advisors LLC92,872$15.47M0.1%-3.0%0.171%
5/16/2025Fred Alger Management LLC8,772$1.46M0.0%-57.1%0.016%
5/16/2025Goldman Sachs Group Inc.280,255$46.69M0.0%+38.6%0.517%
5/16/2025Jones Financial Companies Lllp2,201$367K0.0%+1,267.1%0.004%
5/16/2025Dynamic Technology Lab Private Ltd1,320$220K0.0%N/A0.002%
5/16/2025PharVision Advisers LLC1,410$235K0.3%N/A0.003%
5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.11,371$1.89M0.0%+0.6%0.021%
5/16/2025Gotham Asset Management LLC144,590$24.09M0.2%+13.2%0.267%
5/16/2025Bridger Management LLC39,300$6.55M3.3%N/A0.072%
5/16/2025Alliancebernstein L.P.865,870$144.25M0.1%-8.6%1.597%
5/16/2025AQR Capital Management LLC8,142$1.31M0.0%+136.5%0.015%
5/16/2025Advisors Asset Management Inc.27,288$4.55M0.1%+18.8%0.050%
5/16/2025Amundi41,167$6.27M0.0%-63.1%0.076%
5/16/2025Alyeska Investment Group L.P.722,534$120.37M0.5%+24.9%1.333%
5/16/20254D Advisors LLC30,000$5.00M3.9%N/A0.055%
5/15/2025Redmile Group LLC26,062$4.34M0.4%N/A0.048%
5/15/2025Birchview Capital LP11,280$1.88M1.6%-26.2%0.021%
5/15/2025Durable Capital Partners LP1,125,619$187.53M1.7%N/A2.076%
5/15/2025Royal Bank of Canada43,884$7.31M0.0%+44.5%0.081%
5/15/2025Alamea Verwaltungs GmbH1,963$327K0.3%N/A0.004%
5/15/2025Quarry LP449$75K0.0%+253.5%0.001%
5/15/2025 Twin Tree Management LP175$29K0.0%N/A0.000%
5/15/2025Baird Financial Group Inc.45,120$7.52M0.0%+31.9%0.083%
5/15/2025Vident Advisory LLC2,798$466K0.0%N/A0.005%
5/15/2025Canada Pension Plan Investment Board15,800$2.63M0.0%-1.9%0.029%
5/15/2025Tema Etfs LLC4,543$757K0.2%-52.6%0.008%
5/15/2025Landscape Capital Management L.L.C.4,998$833K0.1%-10.5%0.009%
5/14/2025Cramer Rosenthal Mcglynn LLC151,664$25.27M1.8%-31.9%0.280%
5/14/2025Corebridge Financial Inc.49,327$8.22M0.0%-2.4%0.091%
5/14/2025Comerica Bank137,855$22.97M0.1%-2.5%0.254%
5/14/2025MetLife Investment Management LLC25,640$4.27M0.0%-1.5%0.047%
5/14/2025Quantitative Investment Management LLC4,462$743K0.1%-9.7%0.008%
5/14/2025Price T Rowe Associates Inc. MD282,637$47.09M0.0%+12.7%0.521%
5/14/2025T. Rowe Price Investment Management Inc.1,673,252$278.76M0.2%+0.7%3.086%
5/14/2025Erste Asset Management GmbH92,000$15.33M0.2%+11.3%0.170%
5/14/2025EntryPoint Capital LLC5,368$894K0.4%N/A0.010%
5/14/2025Wellington Management Group LLP1,297$216K0.0%N/A0.002%
5/13/2025Northern Trust Corp383,356$63.87M0.0%-0.1%0.707%
5/13/2025Versor Investments LP6,978$1.16M0.2%N/A0.013%
5/13/2025Algert Global LLC7,310$1.22M0.0%N/A0.013%
5/13/2025Corient IA LLC1,500$250K0.2%N/A0.003%
5/13/2025Northwest & Ethical Investments L.P.2,100$349K0.0%+200.0%0.004%
5/13/2025Raymond James Financial Inc.206,116$34.34M0.0%+1.1%0.380%
5/13/2025State of New Jersey Common Pension Fund D15,867$2.64M0.0%-5.2%0.029%
5/13/2025American Century Companies Inc.79,176$13.19M0.0%+525.5%0.146%
5/13/2025Liontrust Investment Partners LLP747,498$124.53M1.9%-5.7%1.379%
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5/13/2025Dimensional Fund Advisors LP703,378$117.17M0.0%+8.6%1.297%
5/13/2025Vestmark Advisory Solutions Inc.3,274$545K0.0%+6.1%0.006%
5/13/2025 Mitsubishi UFJ Asset Management UK Ltd.8,000$1.33M0.7%N/A0.015%
5/13/2025Neuberger Berman Group LLC74,962$12.49M0.0%-45.7%0.138%
5/13/2025Montanaro Asset Management Ltd32,300$5.38M1.6%-30.5%0.060%
5/13/2025Russell Investments Group Ltd.34,747$5.79M0.0%+76.4%0.064%
5/13/2025Informed Momentum Co LLC22,952$3.82M0.7%N/A0.042%
5/13/2025HighTower Advisors LLC4,550$758K0.0%-33.2%0.008%
5/12/2025Nuveen LLC155,045$25.83M0.0%N/A0.286%
5/12/2025Aigen Investment Management LP1,627$271K0.0%N/A0.003%
(Data available from 1/1/2016 forward)

MASI Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of MASI shares?

During the previous two years, 422 institutional investors and hedge funds held shares of Masimo. The most heavily invested institutionals were FMR LLC ($1.34B), BlackRock Inc. ($1.01B), Politan Capital Management LP ($775.61M), Vanguard Group Inc. ($763.57M), Capital Research Global Investors ($405.81M), Massachusetts Financial Services Co. MA ($327.84M), and T. Rowe Price Investment Management Inc. ($278.76M).Learn more on Masimo's institutional investors.

What percentage of Masimo's stock is owned by institutional investors?

85.96% of Masimo's stock is owned by institutional investors. Learn more on MASI's institutional investor holdings.

Which institutional investors have been buying Masimo's stock?

Of the 328 institutional investors that purchased Masimo's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: FMR LLC ($3.31M), Massachusetts Financial Services Co. MA ($2.85M), Capital Research Global Investors ($1.23M), Durable Capital Partners LP ($1.13M), Eminence Capital LP ($1.04M), Alliancebernstein L.P. ($878.59K), and Westfield Capital Management Co. LP ($477.17K).

How much institutional buying is happening at Masimo?

Institutional investors have bought a total of 14,454,590 shares in the last 24 months. This purchase volume represents approximately $2.25B in transactions.

Which of Masimo's major shareholders have been selling company stock?

Of the 152 institutional investors that sold Masimo's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Farallon Capital Management LLC ($1.23M), Thrivent Financial for Lutherans ($1.21M), Ace Management Global Ltd. ($1.01M), Massachusetts Financial Services Co. MA ($1.00M), RTW Investments LP ($779.11K), Man Group plc ($335.06K), and Two Sigma Investments LP ($302.94K).

How much institutional selling is happening at Masimo?

Institutional investors have sold a total of 8,957,008 shares in the last 24 months. This volume of shares sold represents approximately $1.36B in transactions.


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This page (NASDAQ:MASI) was last updated on 7/30/2025 by MarketBeat.com Staff
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