Masimo Ownership

Who are the major shareholders and have insiders been buying or selling?


Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.


Ownership Breakdown

What is the ownership structure of MASI?
Owner TypeNumber of SharesOwnership Percentage
Private Companies1,5530.00283%
State or Government44,2790.0807%
Individual Insiders4,055,3057.39%
Hedge Funds4,713,5188.59%
Institutions46,041,25783.9%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.


Top Shareholders

Top 25 shareholders own 86.79% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
14.8%
BlackRock, Inc.
7,880,374US$981.1m39.3%0.02%
13.1%
FMR LLC
6,976,574US$868.6m0.71%0.06%
8.88%
Politan Capital Management, L.P.
4,713,518US$586.8m0%34.9%
8.58%
The Vanguard Group, Inc.
4,555,853US$567.2m-4.72%0.01%
7.44%
Joseph Kiani
3,949,797US$491.7m0%no data
4.27%
Capital Research and Management Company
2,269,246US$282.5m0%0.01%
3.24%
Massachusetts Financial Services Company
1,721,785US$214.4m7.12%0.05%
2.81%
Farallon Capital Management, L.L.C.
1,489,563US$185.5m13.6%1.36%
2.75%
RTW Investments, LP
1,462,400US$182.1m0%3.07%
2.56%
State Street Global Advisors, Inc.
1,360,322US$169.4m0.22%0.01%
2.53%
Citadel Advisors LLC
1,345,216US$167.5m76.1%0.18%
2.4%
T. Rowe Price Group, Inc.
1,276,611US$158.9m-18.8%0.01%
1.61%
Thrivent Investment Management Inc.
856,860US$106.7m-19.4%0.21%
1.56%
Liontrust Asset Management PLC
825,529US$102.8m-3.15%0.4%
1.47%
Holocene Advisors, LP
778,414US$96.9m0%0.38%
1.42%
Geode Capital Management, LLC
754,160US$93.9m4.17%0.01%
1.29%
Westfield Capital Management Company, L.P.
686,100US$85.4m-16.2%0.47%
0.99%
Schroder Investment Management North America Inc.
527,336US$65.7m-39.9%0.22%
0.74%
Nikko Asset Management Co., Ltd.
391,889US$48.8m-5.3%0.02%
0.72%
BNY Asset Management
384,179US$47.8m-5.81%0.01%
0.72%
MIG Capital, LLC
381,732US$47.5m-14.7%7.16%
0.71%
Alyeska Investment Group, L.P.
379,419US$47.2m-29%0.31%
0.71%
Charles Schwab Investment Management, Inc.
378,375US$47.1m2.81%0.01%
0.69%
Ensemble Capital Management, LLC
366,335US$45.6m-1.57%4.01%
0.68%
Dimensional Fund Advisors LP
360,337US$44.9m19.5%0.01%
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