Masimo Corporation Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| BLACKROCK, INC. | 11/12/2025 | 10.36 M | $1.53 B | -1.39% | 19.19% |
| FMR LLC | 11/13/2025 | 8.21 M | $1.21 B | 0.40% | 15.21% |
| VANGUARD GROUP INC | 11/07/2025 | 4.81 M | $709.72 M | 3.71% | 8.91% |
| POLITAN CAPITAL MANAGEMENT LP | 11/14/2025 | 4.59 M | $677.20 M | -2.69% | 8.50% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 10/29/2025 | 2.62 M | $386.58 M | 6.05% | 4.85% |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 11/14/2025 | 2.13 M | $313.80 M | -14.93% | 3.94% |
| CAPITAL RESEARCH GLOBAL INVESTORS | 11/13/2025 | 1.85 M | $273.58 M | -0.08% | 3.43% |
| STATE STREET CORP | 11/14/2025 | 1.48 M | $219.03 M | -0.13% | 2.75% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 11/12/2025 | 1.42 M | $209.41 M | 20.15% | 2.63% |
| ALYESKA INVESTMENT GROUP, L.P. | 11/17/2025 | 1.38 M | $203.78 M | 21.74% | 2.56% |
| VIKING GLOBAL INVESTORS LP | 11/14/2025 | 1.07 M | $158.39 M | 39.87% | 1.99% |
| GEODE CAPITAL MANAGEMENT, LLC | 11/12/2025 | 942.44 K | $139.08 M | 5.13% | 1.75% |
| GOLDMAN SACHS GROUP INC | 11/14/2025 | 744.40 K | $109.84 M | 57.87% | 1.38% |
| MORGAN STANLEY | 11/14/2025 | 690.60 K | $101.90 M | -10.00% | 1.28% |
| RTW INVESTMENTS, LP | 11/14/2025 | 683.29 K | $100.82 M | 0.00% | 1.27% |
| LIONTRUST INVESTMENT PARTNERS LLP | 11/24/2025 | 681.90 K | $100.61 M | -3.73% | 1.26% |
| SQUAREPOINT OPS LLC | 11/14/2025 | 620.93 K | $91.62 M | 738.79% | 1.15% |
| DURABLE CAPITAL PARTNERS LP | 11/14/2025 | 620.62 K | $91.57 M | -46.68% | 1.15% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 11/14/2025 | 514.95 K | $75.98 M | 27.00% | 0.95% |
| AMERIPRISE FINANCIAL INC | 11/14/2025 | 460.95 K | $68.01 M | 16.85% | 0.85% |
| BANK OF AMERICA CORP /DE/ | 11/14/2025 | 405.06 K | $59.77 M | 112.99% | 0.75% |
| SUMITOMO MITSUI TRUST HOLDINGS, INC. | 10/27/2025 | 397.25 K | $58.61 M | -15.67% | 0.74% |
| NORTHERN TRUST CORP | 11/14/2025 | 392.14 K | $57.86 M | 0.93% | 0.73% |
| BAMCO INC /NY/ | 11/14/2025 | 388.75 K | $57.36 M | 1.08% | 0.72% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 11/10/2025 | 364.46 K | $53.78 M | -1.69% | 0.67% |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 11/13/2025 | 336.65 K | $48.12 M | -24.94% | 0.62% |
| CI PRIVATE WEALTH, LLC | 11/14/2025 | 336.22 K | $49.61 M | 1.76% | 0.62% |
| INVESCO LTD. | 11/13/2025 | 321.36 K | $47.42 M | 35.42% | 0.60% |
| BANK OF NEW YORK MELLON CORP | 11/03/2025 | 312.62 K | $46.13 M | -1.57% | 0.58% |
| DIMENSIONAL FUND ADVISORS LP | 11/12/2025 | 259.67 K | $38.30 M | -50.37% | 0.48% |
| GRANTHAM, MAYO, VAN OTTERLOO & CO. LLC | 11/13/2025 | 242.82 K | $35.83 M | 0.94% | 0.45% |
| COMERICA BANK | 11/14/2025 | 233.43 K | $34.44 M | 22.97% | 0.43% |
| NUVEEN, LLC | 11/12/2025 | 225.71 K | $33.30 M | 50.82% | 0.42% |
| RAYMOND JAMES FINANCIAL INC | 11/14/2025 | 196.02 K | $28.92 M | -2.10% | 0.36% |
| UBS GROUP AG | 11/13/2025 | 169.80 K | $25.05 M | 19.44% | 0.31% |
| AMERICAN CENTURY COMPANIES INC | 11/12/2025 | 168.34 K | $24.84 M | 10.58% | 0.31% |
| BNP PARIBAS ASSET MANAGEMENT HOLDING S.A. | 11/07/2025 | 164.93 K | $24.34 M | 150.57% | 0.31% |
| ERSTE ASSET MANAGEMENT GMBH | 11/12/2025 | 160.00 K | $22.87 M | 73.91% | 0.30% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 11/14/2025 | 150.00 K | $22.13 M | 100.00% | 0.28% |
| ROCKEFELLER CAPITAL MANAGEMENT L.P. | 11/14/2025 | 147.43 K | $21.75 M | 27.50% | 0.27% |
| MARSHALL WACE, LLP | 11/13/2025 | 134.12 K | $19.79 M | 1,760.74% | 0.25% |
| TOROSO INVESTMENTS, LLC | 11/14/2025 | 132.56 K | $19.56 M | 24.82% | 0.25% |
| GOTHAM ASSET MANAGEMENT, LLC | 11/14/2025 | 129.03 K | $19.04 M | -21.97% | 0.24% |
| ROYAL BANK OF CANADA | 11/14/2025 | 127.12 K | $18.76 M | 15.89% | 0.24% |
| RHUMBLINE ADVISERS | 11/06/2025 | 126.61 K | $18.68 M | -0.70% | 0.23% |
| GW&K INVESTMENT MANAGEMENT, LLC | 11/12/2025 | 124.05 K | $18.30 M | 91,786.67% | 0.23% |
| CITIGROUP INC | 11/10/2025 | 116.67 K | $17.21 M | 133.52% | 0.22% |
| CRAMER ROSENTHAL MCGLYNN LLC | 11/12/2025 | 114.61 K | $16.91 M | 20.71% | 0.21% |
| UBS ASSET MANAGEMENT AMERICAS INC | 11/14/2025 | 109.11 K | $16.10 M | -47.93% | 0.20% |
| DF DENT & CO INC | 11/14/2025 | 108.65 K | $16.03 M | 100.00% | 0.20% |
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Masimo Corporation institutional Ownership - FAQ's
During the previous two years, 594 institutional investors and hedge funds held shares of Masimo Corporation. The most heavily invested institutionals were:
BlackRock, Inc.: 10.36 M
FMR LLC: 8.21 M
VANGUARD GROUP INC: 4.81 M
Politan Capital Management LP: 4.59 M
MASSACHUSETTS FINANCIAL SERVICES CO /MA/: 2.62 M
T. Rowe Price Investment Management, Inc.: 2.13 M
104.01% of Masimo Corporation stock is owned by institutional investors.
Institutional investors have bought a total of 79.04 M shares in the last 24 months. This purchase volume represents approximately $11.64 B in transactions.