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, Q3 2025
Institutional positions in Masimo Corp as of Sep 30, 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
- 358
- −17 vs. Q2 2025
- Shares held
- 56.2M
- −1.27M (−2.2%) vs. Q2 2025
- Total value
- $8.29B
- −$1.38B (−14.3%) vs. Q2 2025
- New holders
- 46
- 120 more added
- Sold out
- 63
- 121 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Tower Research Capital LLC (TRC) | 1,534 | $226.3K | 0.01% | +18+1.2% | Added |
| Syon Capital LLC | 1,550 | $228.7K | 0.01% | −647−29.4% | Reduced |
| Shelton Capital Management | 1,592 | $234.9K | 0.01% | 00.0% | Unchanged |
| Catalytic Wealth RIA, LLC | 1,598 | $235.8K | 0.01% | +1,598 | New |
| Mission Wealth Management, LP | 1,606 | $237.0K | 0.00% | 00.0% | Unchanged |
| Inscription Capital, LLC | 1,611 | $237.7K | 0.03% | −663−29.2% | Reduced |
| Capstone Investment Advisors, LLC | 1,613 | $238.0K | 0.00% | +1,613 | New |
| M&G Plc | 1,623 | $240.2K | 0.00% | 00.0% | Unchanged |
| 111 Capital | 1,666 | $245.8K | 0.05% | +1,666 | New |
| CIBC Asset Management Inc | 1,669 | $246.3K | 0.00% | 00.0% | Unchanged |
| Bridgewater Associates, LP | 1,714 | $252.9K | 0.00% | +69+4.2% | Added |
| Assetmark, Inc | 1,753 | $258.7K | 0.00% | +214+13.9% | Added |
| Vident Advisory, LLC | 1,803 | $266.0K | 0.00% | +54+3.1% | Added |
| Truist Financial Corp | 1,846 | $272.4K | 0.00% | −1,692−47.8% | Reduced |
| Silver Oak Securities, Inc | 1,955 | $288.5K | 0.02% | +1,955 | New |
| ProShare Advisors LLC | 1,964 | $289.8K | 0.00% | −31−1.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 1,948 | $292.7K | 0.00% | −420−17.7% | Reduced |
| Custom Index Systems, LLC | 1,988 | $293.3K | 0.09% | +742+59.6% | Added |
| Maryland State Retirement & Pension System | 2,028 | $299.2K | 0.01% | 00.0% | Unchanged |
| Fiduciary Trust Co | 2,035 | $300.3K | 0.00% | +2,035 | New |
| New Age Alpha Advisors, LLC | 2,171 | $320.3K | 0.01% | −39−1.8% | Reduced |
| BancorpSouth Bank | 2,172 | $320.5K | 0.02% | 00.0% | Unchanged |
| Swiss Life Asset Management Ltd | 2,173 | $320.6K | 0.00% | +958+78.8% | Added |
| Hardy Reed LLC | 2,172 | $320.6K | 0.02% | −3−0.1% | Reduced |
| Wellington Management Group LLP | 2,194 | $323.7K | 0.00% | −1,072−32.8% | Reduced |
| Versor Investments LP | 2,252 | $332.3K | 0.06% | +2,252 | New |
| Utah Retirement Systems | 2,382 | $351.5K | 0.00% | 00.0% | Unchanged |
| Cerity Partners LLC | 2,411 | $355.7K | 0.00% | +2,411 | New |
| Assenagon Asset Management S.A. | 2,457 | $362.5K | 0.00% | −568−18.8% | Reduced |
| Empowered Funds, LLC | 2,461 | $363.1K | 0.00% | +344+16.2% | Added |
| KCM Investment Advisors LLC | 2,515 | $371.1K | 0.01% | 00.0% | Unchanged |
| Wesleyan Assurance Society | 2,550 | $376.0K | 0.02% | 00.0% | Unchanged |
| Alamea Verwaltungs GmbH | 2,566 | $378.6K | 0.26% | 00.0% | Unchanged |
| 180 Wealth Advisors, LLC | 2,620 | $386.6K | 0.05% | −94−3.5% | Reduced |
| Crossmark Global Holdings, Inc. | 2,640 | $389.5K | 0.01% | −318−10.8% | Reduced |
| Buckhead Capital Management LLC | 2,650 | $391.0K | 0.14% | 00.0% | Unchanged |
| Worldquant Millennium Advisors LLC | 2,662 | $392.8K | 0.00% | +2,662 | New |
| Coldstream Capital Management Inc | 2,668 | $393.7K | 0.01% | +391+17.2% | Added |
| TownSquare Capital, LLC | 2,685 | $396.2K | 0.06% | −6,329−70.2% | Reduced |
| Susquehanna International Group, LLP | 2,725 | $402.1K | 0.00% | −12,952−82.6% | Reduced |
| Oppenheimer Asset Management Inc. | 2,797 | $412.7K | 0.00% | +1,064+61.4% | Added |
| Voloridge Investment Management, LLC | 2,863 | $422.4K | 0.00% | +2,863 | New |
| Brevan Howard Capital Management LP | 2,893 | $426.9K | 0.01% | −593−17.0% | Reduced |
| M&T Bank Corp | 3,007 | $444.1K | 0.00% | +248+9.0% | Added |
| EntryPoint Capital, LLC | 3,072 | $453.3K | 0.18% | +238+8.4% | Added |
| Federation des caisses Desjardins du Quebec | 3,093 | $456.4K | 0.00% | +3,093 | New |
| Vestmark Advisory Solutions, Inc. | 3,209 | $473.5K | 0.01% | −1,041−24.5% | Reduced |
| DRW Securities, LLC | 3,222 | $475.6K | 0.02% | +3,222 | New |
| State of Wyoming | 3,422 | $504.9K | 0.06% | +3,422 | New |
| Oxford Financial Group Ltd | 3,430 | $506.1K | 0.03% | 00.0% | Unchanged |
| Securian Asset Management, Inc | 3,433 | $506.5K | 0.01% | 00.0% | Unchanged |
| Bayforest Capital Ltd | 3,559 | $525.1K | 0.25% | −3,146−46.9% | Reduced |
| FORA Capital, LLC | 3,622 | $534.4K | 0.09% | +3,622 | New |
| Verus Capital Partners, LLC | 3,651 | $538.7K | 0.04% | 00.0% | Unchanged |
| Prudential Financial Inc | 3,722 | $549.2K | 0.00% | −150−3.9% | Reduced |
| Summit Trail Advisors, LLC | 3,725 | $549.6K | 0.01% | −3,435−48.0% | Reduced |
| US Bancorp | 3,764 | $555.4K | 0.00% | −406−9.7% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 3,812 | $562.5K | 0.02% | +396+11.6% | Added |
| Kovitz Investment Group Partners, LLC | 3,821 | $563.8K | 0.00% | −575−13.1% | Reduced |
| Vestcor Inc | 3,825 | $564.0K | 0.02% | 00.0% | Unchanged |
| PharVision Advisers, LLC | 3,909 | $576.8K | 0.32% | +3,909 | New |
| CAPROCK Group, Inc. | 4,244 | $592.9K | 0.01% | +4,244 | New |
| Bryce Point Capital, LLC | 4,135 | $610.1K | 0.74% | −750−15.4% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 4,152 | $612.6K | 0.00% | −167−3.9% | Reduced |
| HighTower Advisors, LLC | 4,153 | $612.8K | 0.00% | +264+6.8% | Added |
| Private Advisor Group, LLC | 4,246 | $626.5K | 0.00% | +20.0% | Added |
| Exchange Traded Concepts, LLC | 4,329 | $638.7K | 0.01% | +991+29.7% | Added |
| Eukles Asset Management | 4,438 | $654.8K | 0.25% | −415−8.6% | Reduced |
| NEOS Investment Management LLC | 4,482 | $661.3K | 0.00% | +533+13.5% | Added |
| Tema ETFs LLC | 4,482 | $661.3K | 0.05% | +533+13.5% | Added |
| Wetherby Asset Management Inc | 4,603 | $679.2K | 0.03% | +46+1.0% | Added |
| Public Employees Retirement Association of Colorado | 4,685 | $691.0K | 0.00% | 00.0% | Unchanged |
| Franklin Resources Inc | 4,696 | $692.9K | 0.00% | −206−4.2% | Reduced |
| Stifel Financial Corp | 4,700 | $693.5K | 0.00% | +4,700 | New |
| Voya Investment Management LLC | 4,876 | $719.5K | 0.00% | −14,705−75.1% | Reduced |
| Quadrant Capital Group LLC | 4,881 | $720.2K | 0.02% | −100−2.0% | Reduced |
| Russell Investments Group, Ltd. | 4,889 | $721.5K | 0.00% | −6,046−55.3% | Reduced |
| Neuberger Berman Group LLC | 4,900 | $723.0K | 0.00% | −169−3.3% | Reduced |
| Bank of Montreal | 5,000 | $737.8K | 0.00% | −563−10.1% | Reduced |
| Malaga Cove Capital, LLC | 5,016 | $740.1K | 0.27% | +2,190+77.5% | Added |
| State of Alaska, Department of Revenue | 5,047 | $744.0K | 0.01% | −7−0.1% | Reduced |
| Federated Hermes, Inc. | 5,113 | $754.4K | 0.00% | +912+21.7% | Added |
| Occudo Quantitative Strategies LP | 5,148 | $759.6K | 0.09% | +3,033+143.4% | Added |
| Guggenheim Capital LLC | 5,276 | $778.5K | 0.01% | −397−7.0% | Reduced |
| Steel Peak Wealth Management LLC | 5,292 | $780.8K | 0.03% | +1,225+30.1% | Added |
| Blueshift Asset Management, LLC | 5,330 | $786.4K | 0.24% | +5,330 | New |
| B.O.S.S. Retirement Advisors, LLC | 5,337 | $787.5K | 0.19% | +5+0.1% | Added |
| Graham Capital Management, L.P. | 5,770 | $851.4K | 0.03% | −4,710−44.9% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 5,772 | $851.7K | 0.00% | −868−13.1% | Reduced |
| Bayesian Capital Management, LP | 5,779 | $852.7K | 0.17% | +5,779 | New |
| Polymer Capital Management (US) LLC | 5,876 | $867.0K | 0.12% | +5,876 | New |
| Sherbrooke Park Advisers LLC | 5,905 | $871.3K | 0.40% | +5,905 | New |
| Teacher Retirement System of Texas | 6,033 | $890.2K | 0.00% | −5,638−48.3% | Reduced |
| Pacer Advisors, Inc. | 6,080 | $897.1K | 0.00% | +6,080 | New |
| OP Asset Management Ltd | 6,308 | $930.7K | 0.01% | +6,308 | New |
| Navellier & Associates Inc | 6,310 | $931.0K | 0.09% | +6,310 | New |
| Deutsche Bank AG | 6,605 | $974.6K | 0.00% | +293+4.6% | Added |
| JustInvest LLC | 6,793 | $1.00M | 0.01% | +352+5.5% | Added |
| Fieldview Capital Management, LLC | 6,812 | $1.01M | 0.16% | +6,812 | New |
| Pictet Asset Management Holding SA | 6,841 | $1.01M | 0.00% | +162+2.4% | Added |