MASIMO CORP - MASI
Sector:
Healthcare
· Industry:
Electromedical & Electrotherapeutic Apparatus
Website:
No information yet
· Social:
No information yet
Company profile
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Quarter snapshot
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Q4 2025
· Q3 2025
Value (USD)
Total reported value ($000)
$6.983B
QoQ value delta ($000)
-$1.133B
(-13.96%)
Implied price effect (QoQ)
-11.82%
Shares
Total shares
53,680,441
QoQ shares delta
-1,333,404
(-2.42%)
Total shares held by funds (by quarter)
Market chart (MASI)
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Top holders (Q4 2025)
Top 25 only
Full list
Early Q1 2026 data: only 3 institutional holders reported so far. More will appear as funds file with the SEC.
| Manager | Value ($000) | Shares | % of 13F |
|---|---|---|---|
| BlackRock, Inc. | 1,151,761 | 8,855,619 | 0.02% |
| FMR LLC | 1,022,813 | 7,864,164 | 0.05% |
| Politan Capital Management LP | 596,929 | 4,589,648 | 71.01% |
| VANGUARD GROUP INC | 565,603 | 4,348,786 | 0.01% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 346,463 | 2,663,875 | 0.11% |
| T. Rowe Price Investment Management, Inc. | 303,061 | 2,330,158 | 0.19% |
| NAYA CAPITAL MANAGEMENT UK LTD | 202,984 | 1,560,697 | 15.28% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 197,957 | 1,522,049 | 0.82% |
| STATE STREET CORP | 184,060 | 1,415,196 | 0.01% |
| Alyeska Investment Group, L.P. | 163,785 | 1,259,307 | 0.46% |
| AQR CAPITAL MANAGEMENT LLC | 141,937 | 1,091,326 | 0.07% |
| GEODE CAPITAL MANAGEMENT, LLC | 124,096 | 953,976 | 0.01% |
| MORGAN STANLEY | 119,751 | 920,735 | 0.01% |
| RTW INVESTMENTS, LP | 88,869 | 683,294 | 0.89% |
| Capital Research Global Investors | 82,964 | 637,894 | 0.02% |
| GOLDMAN SACHS GROUP INC | 82,808 | 636,698 | 0.01% |
| Liontrust Investment Partners LLP | 81,651 | 627,796 | 1.21% |
| UBS Group AG | 77,941 | 599,274 | 0.01% |
| Squarepoint Ops LLC | 75,922 | 583,747 | 0.08% |
| VIKING GLOBAL INVESTORS LP | 66,895 | 514,340 | 0.18% |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 62,324 | 475,504 | 0.05% |
| AMERIPRISE FINANCIAL INC | 60,921 | 468,407 | 0.01% |
| NORTHERN TRUST CORP | 49,483 | 380,464 | 0.01% |
| NORGES BANK | 49,087 | 377,421 | 0.01% |
| BAMCO INC /NY/ | 48,629 | 373,899 | 0.13% |