Masimo Corp
MASIDelisted Jun 10, 2026- Industry
- Electromedical & Electrotherapeutic Apparatus
- SEC CIK
- 0000937556
Masimo Corp was delisted on Jun 10, 2026; its insiders filed their last Form 4 on Jun 12, 2026; 451 institutions reported holding it in 13F filings for Q1 2026, worth $9.69B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q2 2023
Institutional positions in Masimo Corp as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 415
- −13 vs. Q1 2023
- Shares held
- 46.0M
- +958.6K (+2.1%) vs. Q1 2023
- Total value
- $7.56B
- −$738.3M (−8.9%) vs. Q1 2023
- New holders
- 45
- 114 more added
- Sold out
- 58
- 171 more reduced
Compare with Q1 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MASI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 2 | $16.2K |
| Q1 2026 | 451 | $9.69B |
| Q4 2025 | 392 | $7.20B |
| Q3 2025 | 358 | $8.29B |
| Q2 2025 | 379 | $9.68B |
| Q1 2025 | 393 | $9.02B |
| Q4 2024 | 366 | $8.50B |
| Q3 2024 | 362 | $6.72B |
| Q2 2024 | 352 | $6.24B |
| Q1 2024 | 339 | $7.59B |
| Q4 2023 | 342 | $5.91B |
| Q3 2023 | 357 | $4.18B |
| Q2 2023 | 415 | $7.56B |
| Q1 2023 | 428 | $8.30B |
| Q4 2022 | 405 | $6.58B |
| Q3 2022 | 418 | $6.54B |
| Q2 2022 | 417 | $5.81B |
| Q1 2022 | 457 | $6.61B |
| Q4 2021 | 520 | $13.6B |
| Q3 2021 | 475 | $12.5B |
| Q2 2021 | 459 | $11.1B |
| Q1 2021 | 481 | $10.3B |
Institutions, Q2 2023
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of New York Mellon Corp | 497,171 | $81.8M | 0.02% | −26,289−5.0% | Reduced |
| Martin Currie Ltd | 502,063 | $82.6M | 2.78% | +1,568+0.3% | Added |
| T. Rowe Price Investment Management, Inc. | 518,008 | $85.2M | 0.06% | −18,147−3.4% | Reduced |
| Schroder Investment Management Group | 643,055 | $105.8M | 0.15% | −55,933−8.0% | Reduced |
| Fundsmith LLPSuperinvestorFundsmith | 730,377 | $120.2M | 0.50% | −33,942−4.4% | Reduced |
| Geode Capital Management, LLC | 758,606 | $124.6M | 0.01% | +32,588+4.5% | Added |
| Liontrust Investment Partners LLP | 920,406 | $151.5M | 2.18% | −31,794−3.3% | Reduced |
| Westfield Capital Management Co LP | 953,799 | $156.9M | 1.00% | +953,799 | New |
| RTW Investments, LP | 1,501,493 | $247.1M | 4.70% | 00.0% | Unchanged |
| Capital Research Global Investors | 1,652,524 | $271.9M | 0.07% | +974+0.1% | Added |
| State Street Corp | 1,664,786 | $273.9M | 0.01% | −46,809−2.7% | Reduced |
| Politan Capital Management LP | 4,713,518 | $775.6M | 45.96% | −26,445−0.6% | Reduced |
| Vanguard Group Inc | 4,855,269 | $798.9M | 0.02% | +182,918+3.9% | Added |
| BlackRock Inc. | 6,120,123 | $1.01B | 0.03% | +178,267+3.0% | Added |
| FMR LLC | 7,157,277 | $1.18B | 0.10% | +1,072,321+17.6% | Added |
| 1832 Asset Management L.P. | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −48,289−100.0% | Sold out |
| SG Capital Management LLC | 0 | $0 | 0.00% | −40,102−100.0% | Sold out |
| Castleark Management LLC | 0 | $0 | 0.00% | −35,240−100.0% | Sold out |
| Cloverfields Capital Group, LP | 0 | $0 | 0.00% | −18,858−100.0% | Sold out |
| Banque Pictet & Cie SA | 0 | $0 | 0.00% | −15,252−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −8,864−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −7,907−100.0% | Sold out |
| Unigestion Holding SA | 0 | $0 | 0.00% | −6,966−100.0% | Sold out |
| Van Eck Associates Corp | 0 | $0 | 0.00% | −6,059−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −5,928−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −5,749−100.0% | Sold out |
| Knowledge Leaders Capital, LLC | 0 | $0 | 0.00% | −5,632−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −4,897−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −4,345−100.0% | Sold out |
| Westpac Banking Corp | 0 | $0 | 0.00% | −3,952−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −3,924−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −3,772−100.0% | Sold out |
| Lombard Odier Asset Management (Europe) Ltd | 0 | $0 | 0.00% | −3,100−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −2,782−100.0% | Sold out |
| Duality Advisers, LP | 0 | $0 | 0.00% | −2,701−100.0% | Sold out |
| National Asset Management, Inc. | 0 | $0 | 0.00% | −2,594−100.0% | Sold out |
| Candriam Luxembourg S.C.A. | 0 | $0 | 0.00% | −2,813−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −2,459−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −2,150−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −1,635−100.0% | Sold out |
| Quantamental Technologies LLC | 0 | $0 | 0.00% | −1,612−100.0% | Sold out |
| Cetera Advisors LLC | 0 | $0 | 0.00% | −1,591−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −1,589−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −1,547−100.0% | Sold out |
| LRT Capital Management, LLC | 0 | $0 | 0.00% | −1,452−100.0% | Sold out |
| Raymond James Financial Services Advisors, Inc. | 0 | $0 | 0.00% | −1,432−100.0% | Sold out |
| PVG Asset Management Corp | 0 | $0 | 0.00% | −1,425−100.0% | Sold out |
| Hamilton Wealth, LLC | 0 | $0 | 0.00% | −1,234−100.0% | Sold out |
| Synergy Financial Group, LTD | 0 | $0 | 0.00% | −1,196−100.0% | Sold out |
| Mutual Advisors, LLC | 0 | $0 | 0.00% | −1,177−100.0% | Sold out |
| Matisse Capital | 0 | $0 | 0.00% | −1,166−100.0% | Sold out |
| B. Metzler seel. Sohn & Co. AG | 0 | $0 | 0.00% | −1,121−100.0% | Sold out |
| HBK Sorce Advisory LLC | 0 | $0 | 0.00% | −1,113−100.0% | Sold out |
| Intrust Bank NA | 0 | $0 | 0.00% | −1,102−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −1,100−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −765−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −510−100.0% | Sold out |
| Castleview Partners, LLC | 0 | $0 | 0.00% | −376−100.0% | Sold out |
| Belpointe Asset Management LLC | 0 | $0 | 0.00% | −339−100.0% | Sold out |
| Caisse de Depot Et Placement du Quebec | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −146−100.0% | Sold out |
| Machina Capital S.A.S. | 0 | $0 | 0.00% | −101−100.0% | Sold out |
| Sageworth Trust Co of South Dakota | 0 | $0 | 0.00% | −90−100.0% | Sold out |
| TCI Wealth Advisors, Inc. | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| New Hampshire Trust | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| Bokf, NA | 0 | $0 | 0.00% | −32−100.0% | Sold out |
| North Star Investment Management Corp. | 0 | $0 | 0.00% | −30−100.0% | Sold out |
| Ameritas Advisory Services, LLC | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| BDO Wealth Advisors, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Values First Advisors, Inc. | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| Robbins Farley LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Schubert & Co | 0 | $0 | 0.00% | −16−100.0% | Sold out |