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, Q4 2025
Institutional positions in Masimo Corp as of Dec 31, 2025. 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
- 392
- +37 vs. Q3 2025
- Shares held
- 55.4M
- −842.2K (−1.5%) vs. Q3 2025
- Total value
- $7.20B
- −$1.09B (−13.1%) vs. Q3 2025
- New holders
- 86
- 102 more added
- Sold out
- 49
- 132 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: 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, Q4 2025
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Eurizon Capital SGR S.p.A. | 784 | $102.6K | 0.00% | +784 | New |
| Essential Partners LLC | 887 | $115.4K | 0.04% | +857+2,856.7% | Added |
| Caitong International Asset Management Co., Ltd | 890 | $115.8K | 0.03% | +890 | New |
| EverSource Wealth Advisors, LLC | 976 | $126.9K | 0.00% | +749+330.0% | Added |
| Whittier Trust Co | 1,134 | $154.9K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,202 | $156.3K | 0.00% | −332−21.6% | Reduced |
| KBC Group NV | 1,258 | $164.0K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 1,389 | $180.7K | 0.00% | +919+195.5% | Added |
| Vontobel Holding Ltd. | 1,549 | $201.5K | 0.00% | +1,549 | New |
| Mirabella Financial Services LLP | 1,551 | $201.7K | 0.02% | +1,551 | New |
| Inscription Capital, LLC | 1,570 | $204.2K | 0.02% | −41−2.5% | Reduced |
| Shelton Capital Management | 1,592 | $207.1K | 0.00% | 00.0% | Unchanged |
| North Dakota State Investment Board | 1,602 | $208.4K | 0.01% | +1,602 | New |
| SummitTX Capital, L.P. | 1,603 | $208.5K | 0.01% | +1,603 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 1,611 | $209.5K | 0.00% | +1,611 | New |
| Bridgewater Associates, LP | 1,619 | $210.6K | 0.00% | −95−5.5% | Reduced |
| M&G Plc | 1,623 | $211.0K | 0.00% | 00.0% | Unchanged |
| Pinnacle Associates Ltd | 1,667 | $216.8K | 0.00% | +1,667 | New |
| CIBC Asset Management Inc | 1,669 | $217.1K | 0.00% | 00.0% | Unchanged |
| Sanctuary Advisors, LLC | 1,672 | $217.4K | 0.00% | +1,672 | New |
| Allworth Financial LP | 1,695 | $220.5K | 0.00% | +790+87.3% | Added |
| Sentinus, LLC | 1,747 | $227.2K | 0.02% | +1,747 | New |
| Vident Advisory, LLC | 1,748 | $227.3K | 0.00% | −55−3.1% | Reduced |
| O'Shaughnessy Asset Management, LLC | 1,762 | $229.2K | 0.00% | +270+18.1% | Added |
| ISAM Funds (UK) Ltd | 1,762 | $229.2K | 0.08% | +1,063+152.1% | Added |
| ProShare Advisors LLC | 1,830 | $238.0K | 0.00% | −134−6.8% | Reduced |
| Assetmark, Inc | 1,850 | $240.6K | 0.00% | +97+5.5% | Added |
| Mission Wealth Management, LP | 1,885 | $245.2K | 0.00% | +279+17.4% | Added |
| Chicago Partners Investment Group LLC | 1,796 | $254.1K | 0.01% | +1,796 | New |
| Blueshift Asset Management, LLC | 1,966 | $255.7K | 0.07% | −3,364−63.1% | Reduced |
| Silver Oak Securities, Inc | 1,955 | $256.2K | 0.02% | 00.0% | Unchanged |
| Prudential Financial Inc | 1,958 | $256.6K | 0.00% | −1,764−47.4% | Reduced |
| Virtu Financial LLC | 1,985 | $258.0K | 0.01% | +1,985 | New |
| Beese Fulmer Investment Management, Inc. | 2,002 | $260.4K | 0.02% | +2,002 | New |
| Aigen Investment Management, LP | 2,018 | $262.5K | 0.06% | +2,018 | New |
| Maryland State Retirement & Pension System | 2,028 | $263.8K | 0.01% | 00.0% | Unchanged |
| nVerses Capital, LLC | 2,067 | $268.8K | 0.60% | +2,067 | New |
| Farther Finance Advisors, LLC | 2,144 | $278.8K | 0.00% | +1,070+99.6% | Added |
| BancorpSouth Bank | 2,172 | $282.5K | 0.02% | 00.0% | Unchanged |
| Hardy Reed LLC | 2,172 | $282.5K | 0.02% | 00.0% | Unchanged |
| Swiss Life Asset Management Ltd | 2,173 | $282.6K | 0.00% | 00.0% | Unchanged |
| Inceptionr LLC | 2,202 | $286.4K | 0.08% | +2,202 | New |
| Natixis | 2,286 | $297.3K | 0.00% | +2,286 | New |
| HB Wealth Management, LLC | 2,337 | $303.9K | 0.00% | +2,337 | New |
| Fiduciary Trust Co | 2,339 | $304.2K | 0.00% | +304+14.9% | Added |
| First Trust Advisors LP | 2,341 | $304.5K | 0.00% | −59,593−96.2% | Reduced |
| Headlands Technologies LLC | 2,350 | $305.6K | 0.03% | +2,350 | New |
| Utah Retirement Systems | 2,382 | $309.8K | 0.00% | 00.0% | Unchanged |
| TownSquare Capital, LLC | 2,444 | $317.9K | 0.07% | −241−9.0% | Reduced |
| Orser Capital Management, LLC | 2,450 | $318.6K | 0.19% | +2,450 | New |
| Oppenheimer Asset Management Inc. | 2,503 | $325.5K | 0.00% | −294−10.5% | Reduced |
| KCM Investment Advisors LLC | 2,515 | $327.1K | 0.01% | 00.0% | Unchanged |
| Wesleyan Assurance Society | 2,550 | $331.0K | 0.02% | 00.0% | Unchanged |
| Crossmark Global Holdings, Inc. | 2,640 | $343.4K | 0.00% | 00.0% | Unchanged |
| Buckhead Capital Management LLC | 2,650 | $344.7K | 0.12% | 00.0% | Unchanged |
| 180 Wealth Advisors, LLC | 2,662 | $346.2K | 0.04% | +42+1.6% | Added |
| Ensign Peak Advisors, Inc | 2,711 | $352.6K | 0.00% | −24,650−90.1% | Reduced |
| Two Sigma Securities, LLC | 2,711 | $352.6K | 0.05% | +2,711 | New |
| 111 Capital | 2,871 | $373.4K | 0.08% | +1,205+72.3% | Added |
| State of Wyoming | 2,896 | $376.7K | 0.04% | −526−15.4% | Reduced |
| Coldstream Capital Management Inc | 2,963 | $385.4K | 0.00% | +295+11.1% | Added |
| Merit Financial Group, LLC | 2,981 | $387.7K | 0.00% | +2,981 | New |
| Havemeyer Place LP | 3,020 | $392.8K | 0.08% | +3,020 | New |
| Farringdon Capital, Ltd. | 3,141 | $408.5K | 0.10% | +3,141 | New |
| RMB Capital Management, LLC | 3,143 | $408.8K | 0.01% | +3,143 | New |
| CenterBook Partners LP | 3,148 | $409.4K | 0.02% | +3,148 | New |
| NorthCrest Asset Manangement, LLC | 3,133 | $419.8K | 0.01% | +3,133 | New |
| M&T Bank Corp | 3,324 | $431.9K | 0.00% | +317+10.5% | Added |
| Securian Asset Management, Inc | 3,333 | $433.5K | 0.02% | −100−2.9% | Reduced |
| Oxford Financial Group Ltd | 3,430 | $446.1K | 0.02% | 00.0% | Unchanged |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 3,502 | $446.2K | 0.00% | −650−15.7% | Reduced |
| Versor Investments LP | 3,564 | $463.5K | 0.07% | +1,312+58.3% | Added |
| Krilogy Financial LLC | 3,362 | $471.4K | 0.02% | +3,362 | New |
| Verus Capital Partners, LLC | 3,651 | $474.8K | 0.03% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 3,657 | $475.6K | 0.00% | +564+18.2% | Added |
| AlphaGrep UK Ltd | 3,657 | $475.6K | 0.16% | +3,657 | New |
| Federated Hermes, Inc. | 3,672 | $477.6K | 0.00% | −1,441−28.2% | Reduced |
| Gsa Capital Partners LLP | 3,682 | $479.0K | 0.04% | +3,682 | New |
| Quadrant Capital Group LLC | 3,746 | $487.2K | 0.01% | −1,135−23.3% | Reduced |
| HighTower Advisors, LLC | 3,747 | $487.3K | 0.00% | −406−9.8% | Reduced |
| US Bancorp | 3,764 | $489.5K | 0.00% | 00.0% | Unchanged |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 3,797 | $493.8K | 0.02% | −15−0.4% | Reduced |
| Vestcor Inc | 3,825 | $497.0K | 0.01% | 00.0% | Unchanged |
| Captrust Financial Advisors | 3,852 | $501.0K | 0.00% | +3,852 | New |
| Private Advisor Group, LLC | 4,225 | $549.5K | 0.00% | −21−0.5% | Reduced |
| New Age Alpha Advisors, LLC | 4,238 | $551.2K | 0.02% | +2,067+95.2% | Added |
| NEOS Investment Management LLC | 4,342 | $564.7K | 0.00% | −140−3.1% | Reduced |
| Tema ETFs LLC | 4,342 | $564.7K | 0.04% | −140−3.1% | Reduced |
| Eukles Asset Management | 4,350 | $565.8K | 0.22% | −88−2.0% | Reduced |
| Franklin Resources Inc | 4,384 | $570.2K | 0.00% | −312−6.6% | Reduced |
| Voya Investment Management LLC | 4,413 | $574.0K | 0.00% | −463−9.5% | Reduced |
| Stifel Financial Corp | 4,526 | $588.7K | 0.00% | −174−3.7% | Reduced |
| State of Alaska, Department of Revenue | 4,602 | $598.0K | 0.01% | −445−8.8% | Reduced |
| Russell Investments Group, Ltd. | 4,633 | $602.6K | 0.00% | −256−5.2% | Reduced |
| Public Employees Retirement Association of Colorado | 4,685 | $609.0K | 0.00% | 00.0% | Unchanged |
| Capstone Investment Advisors, LLC | 4,718 | $613.6K | 0.00% | +3,105+192.5% | Added |
| Laird Norton Trust Company, LLC | 4,778 | $621.4K | 0.01% | +4,778 | New |
| Bank of Montreal | 4,976 | $647.2K | 0.00% | −24−0.5% | Reduced |
| Neuberger Berman Group LLC | 5,006 | $651.1K | 0.00% | +106+2.2% | Added |
| Exchange Traded Concepts, LLC | 5,101 | $663.4K | 0.01% | +772+17.8% | Added |