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 2025
Institutional positions in Masimo Corp as of Jun 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
- 379
- −11 vs. Q1 2025
- Shares held
- 57.5M
- +3.35M (+6.2%) vs. Q1 2025
- Total value
- $9.68B
- +$653.6M (+7.2%) vs. Q1 2025
- New holders
- 46
- 127 more added
- Sold out
- 57
- 136 more reduced
3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| GAMMA Investing LLC | 708 | $119.1K | 0.01% | −30−4.1% | Reduced |
| Advisor Group Holdings, Inc. | 813 | $136.8K | 0.00% | −141−14.8% | Reduced |
| CWM, LLC | 931 | $157.0K | 0.00% | −219−19.0% | Reduced |
| United Community Bank | 946 | $159.1K | 0.05% | +5+0.5% | Added |
| Whittier Trust Co | 1,134 | $190.8K | 0.00% | −23−2.0% | Reduced |
| HB Wealth Management, LLC | 1,193 | $200.7K | 0.00% | −77−6.1% | Reduced |
| Knollwood Investment Advisory, LLC | 1,200 | $201.9K | 0.02% | +1,200 | New |
| Swiss Life Asset Management Ltd | 1,215 | $204.4K | 0.00% | +1,215 | New |
| Greenleaf Trust | 1,217 | $204.7K | 0.00% | −97−7.4% | Reduced |
| Custom Index Systems, LLC | 1,246 | $209.6K | 0.10% | +16+1.3% | Added |
| Ballentine Partners, LLC | 1,255 | $211.1K | 0.00% | +19+1.5% | Added |
| KBC Group NV | 1,258 | $212.0K | 0.00% | −847−40.2% | Reduced |
| Forum Financial Management, LP | 1,266 | $213.0K | 0.00% | −50−3.8% | Reduced |
| Vontobel Holding Ltd. | 1,282 | $215.7K | 0.00% | −111−8.0% | Reduced |
| Zacks Investment Management | 1,290 | $216.9K | 0.00% | −26,517−95.4% | Reduced |
| Pitcairn Co | 1,320 | $222.1K | 0.01% | −305−18.8% | Reduced |
| Keel Point, LLC | 1,336 | $224.7K | 0.01% | −29−2.1% | Reduced |
| Kera Capital Partners, Inc. | 1,380 | $232.1K | 0.05% | +1,380 | New |
| Andina Capital Management, LLC | 1,420 | $238.9K | 0.17% | +1,420 | New |
| apricus wealth, LLC | 1,462 | $245.9K | 0.14% | 00.0% | Unchanged |
| Fifth Third Wealth Advisors LLC | 1,465 | $246.4K | 0.01% | +5+0.3% | Added |
| Mercer Global Advisors Inc | 1,472 | $247.7K | 0.00% | +1,472 | New |
| Corient IA LLC | 1,500 | $252.3K | 0.15% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,516 | $255.0K | 0.01% | +166+12.3% | Added |
| Qsemble Capital Management, LP | 1,525 | $256.5K | 0.02% | +1,525 | New |
| Assetmark, Inc | 1,539 | $258.9K | 0.00% | +73+5.0% | Added |
| MML Investors Services, LLC | 1,569 | $264.0K | 0.00% | −626−28.5% | Reduced |
| Shelton Capital Management | 1,592 | $267.8K | 0.01% | −52−3.2% | Reduced |
| Mission Wealth Management, LP | 1,606 | $270.2K | 0.01% | +1+0.1% | Added |
| M&G Plc | 1,623 | $272.7K | 0.00% | +13+0.8% | Added |
| Bridgewater Associates, LP | 1,645 | $276.7K | 0.00% | −473−22.3% | Reduced |
| Versant Capital Management, Inc | 1,647 | $277.1K | 0.04% | +167+11.3% | Added |
| CIBC Asset Management Inc | 1,669 | $280.8K | 0.00% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 1,681 | $283.0K | 0.00% | −81−4.6% | Reduced |
| Prelude Capital Management, LLC | 1,720 | $289.3K | 0.03% | −3,939−69.6% | Reduced |
| Oppenheimer Asset Management Inc. | 1,733 | $291.5K | 0.00% | −1,583−47.7% | Reduced |
| Vident Advisory, LLC | 1,749 | $294.2K | 0.00% | −1,049−37.5% | Reduced |
| O'Shaughnessy Asset Management, LLC | 1,749 | $294.2K | 0.00% | +114+7.0% | Added |
| RSM US Wealth Management LLC | 1,835 | $308.7K | 0.00% | +402+28.1% | Added |
| North Star Asset Management Inc | 1,860 | $312.9K | 0.01% | −50−2.6% | Reduced |
| Jane Street Group, LLC | 1,872 | $314.9K | 0.00% | −178−8.7% | Reduced |
| Atria Investments LLC | 1,928 | $324.3K | 0.00% | −189−8.9% | Reduced |
| ProShare Advisors LLC | 1,995 | $335.6K | 0.00% | +101+5.3% | Added |
| Maryland State Retirement & Pension System | 2,028 | $341.1K | 0.01% | 00.0% | Unchanged |
| Northwest & Ethical Investments L.P. | 2,100 | $353.2K | 0.01% | 00.0% | Unchanged |
| Occudo Quantitative Strategies LP | 2,115 | $355.8K | 0.04% | +2,115 | New |
| Empowered Funds, LLC | 2,117 | $356.1K | 0.00% | −747−26.1% | Reduced |
| BancorpSouth Bank | 2,172 | $365.4K | 0.02% | 00.0% | Unchanged |
| Hardy Reed LLC | 2,175 | $365.9K | 0.03% | +3+0.1% | Added |
| Syon Capital LLC | 2,197 | $369.6K | 0.02% | +2,197 | New |
| New Age Alpha Advisors, LLC | 2,210 | $371.8K | 0.02% | −60−2.6% | Reduced |
| Inscription Capital, LLC | 2,274 | $382.5K | 0.06% | +2,274 | New |
| Coldstream Capital Management Inc | 2,277 | $383.0K | 0.01% | +4+0.2% | Added |
| Wealth Enhancement Advisory Services, LLC | 2,368 | $396.8K | 0.00% | −34−1.4% | Reduced |
| Utah Retirement Systems | 2,382 | $400.7K | 0.00% | +82+3.6% | Added |
| KCM Investment Advisors LLC | 2,515 | $423.1K | 0.01% | 00.0% | Unchanged |
| Wesleyan Assurance Society | 2,550 | $429.0K | 0.03% | 00.0% | Unchanged |
| Alamea Verwaltungs GmbH | 2,566 | $431.7K | 0.32% | +603+30.7% | Added |
| Buckhead Capital Management LLC | 2,650 | $445.8K | 0.17% | 00.0% | Unchanged |
| 180 Wealth Advisors, LLC | 2,714 | $456.5K | 0.06% | −43−1.6% | Reduced |
| M&T Bank Corp | 2,759 | $464.2K | 0.00% | +575+26.3% | Added |
| Malaga Cove Capital, LLC | 2,826 | $475.4K | 0.19% | −80−2.8% | Reduced |
| EntryPoint Capital, LLC | 2,834 | $476.7K | 0.24% | −2,534−47.2% | Reduced |
| Crossmark Global Holdings, Inc. | 2,958 | $497.6K | 0.01% | −215−6.8% | Reduced |
| Assenagon Asset Management S.A. | 3,025 | $508.9K | 0.00% | −1,354−30.9% | Reduced |
| Wellington Management Group LLP | 3,266 | $549.4K | 0.00% | +1,969+151.8% | Added |
| Exchange Traded Concepts, LLC | 3,338 | $561.5K | 0.01% | −201−5.7% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 3,416 | $574.6K | 0.02% | +436+14.6% | Added |
| Oxford Financial Group Ltd | 3,430 | $577.0K | 0.03% | 00.0% | Unchanged |
| Securian Asset Management, Inc | 3,433 | $577.5K | 0.02% | 00.0% | Unchanged |
| Brevan Howard Capital Management LP | 3,486 | $586.4K | 0.01% | −12,533−78.2% | Reduced |
| Truist Financial Corp | 3,538 | $595.2K | 0.00% | +340+10.6% | Added |
| Bridgefront Capital, LLC | 3,564 | $599.5K | 0.16% | +894+33.5% | Added |
| Algert Global LLC | 3,570 | $600.5K | 0.01% | −3,740−51.2% | Reduced |
| Verus Capital Partners, LLC | 3,651 | $614.2K | 0.05% | 00.0% | Unchanged |
| Vestcor Inc | 3,825 | $643.0K | 0.02% | 00.0% | Unchanged |
| Prudential Financial Inc | 3,872 | $651.3K | 0.00% | +682+21.4% | Added |
| RFG Advisory, LLC | 3,887 | $653.9K | 0.02% | −2,893−42.7% | Reduced |
| HighTower Advisors, LLC | 3,889 | $654.2K | 0.00% | −661−14.5% | Reduced |
| Millennium Management LLC | 3,907 | $657.2K | 0.00% | −130,899−97.1% | Reduced |
| NEOS Investment Management LLC | 3,949 | $664.3K | 0.01% | −594−13.1% | Reduced |
| Tema ETFs LLC | 3,949 | $664.3K | 0.18% | −594−13.1% | Reduced |
| Steel Peak Wealth Management LLC | 4,067 | $684.2K | 0.03% | −3−0.1% | Reduced |
| US Bancorp | 4,170 | $701.5K | 0.00% | −156−3.6% | Reduced |
| Federated Hermes, Inc. | 4,201 | $706.7K | 0.00% | −46,801−91.8% | Reduced |
| Private Advisor Group, LLC | 4,244 | $713.9K | 0.00% | −11−0.3% | Reduced |
| Vestmark Advisory Solutions, Inc. | 4,250 | $714.9K | 0.01% | +976+29.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 4,319 | $726.5K | 0.00% | +280+6.9% | Added |
| Kovitz Investment Group Partners, LLC | 4,396 | $739.5K | 0.00% | +480+12.3% | Added |
| BNP Paribas Arbitrage, SA | 4,483 | $754.1K | 0.00% | −66,240−93.7% | Reduced |
| Wetherby Asset Management Inc | 4,557 | $766.6K | 0.03% | +4,557 | New |
| Public Employees Retirement Association of Colorado | 4,685 | $788.0K | 0.00% | −156−3.2% | Reduced |
| Eukles Asset Management | 4,853 | $816.4K | 0.33% | −263−5.1% | Reduced |
| Brinker Capital Investments, LLC | 4,871 | $819.4K | 0.01% | +104+2.2% | Added |
| Bryce Point Capital, LLC | 4,885 | $821.8K | 0.70% | +4,885 | New |
| Franklin Resources Inc | 4,902 | $824.6K | 0.00% | −7,384−60.1% | Reduced |
| Quadrant Capital Group LLC | 4,981 | $837.9K | 0.03% | +933+23.0% | Added |
| State of Alaska, Department of Revenue | 5,054 | $850.0K | 0.01% | −150−2.9% | Reduced |
| Neuberger Berman Group LLC | 5,069 | $852.7K | 0.00% | −69,893−93.2% | Reduced |
| B.O.S.S. Retirement Advisors, LLC | 5,332 | $896.9K | 0.23% | 00.0% | Unchanged |