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, Q1 2025
Institutional positions in Masimo Corp as of Mar 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
- 393
- +31 vs. Q4 2024
- Shares held
- 54.2M
- +2.83M (+5.5%) vs. Q4 2024
- Total value
- $9.02B
- +$532.2M (+6.3%) vs. Q4 2024
- New holders
- 77
- 136 more added
- Sold out
- 46
- 118 more reduced
4 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| GAMMA Investing LLC | 738 | $123.0K | 0.01% | +272+58.4% | Added |
| United Community Bank | 941 | $156.8K | 0.06% | −5−0.5% | Reduced |
| Advisor Group Holdings, Inc. | 954 | $159.3K | 0.00% | −109−10.3% | Reduced |
| Harbor Investment Advisory, LLC | 970 | $161.6K | 0.02% | 00.0% | Unchanged |
| CWM, LLC | 1,150 | $192.0K | 0.00% | +15+1.3% | Added |
| Whittier Trust Co | 1,157 | $192.8K | 0.00% | 00.0% | Unchanged |
| Custom Index Systems, LLC | 1,230 | $204.9K | 0.10% | +1,230 | New |
| Ballentine Partners, LLC | 1,236 | $205.9K | 0.00% | +1,236 | New |
| HB Wealth Management, LLC | 1,270 | $211.6K | 0.00% | +56+4.6% | Added |
| Jain Global LLC | 1,274 | $212.2K | 0.00% | +1,274 | New |
| Wellington Management Group LLP | 1,297 | $216.1K | 0.00% | +1,297 | New |
| Greenleaf Trust | 1,314 | $218.9K | 0.00% | +57+4.5% | Added |
| Forum Financial Management, LP | 1,316 | $219.2K | 0.00% | +2+0.2% | Added |
| Dynamic Technology Lab Private Ltd | 1,320 | $220.0K | 0.03% | +1,320 | New |
| Tower Research Capital LLC (TRC) | 1,350 | $224.9K | 0.01% | −1,238−47.8% | Reduced |
| Keel Point, LLC | 1,365 | $227.4K | 0.02% | +37+2.8% | Added |
| Vontobel Holding Ltd. | 1,393 | $232.1K | 0.00% | −418−23.1% | Reduced |
| PharVision Advisers, LLC | 1,410 | $234.9K | 0.33% | +1,410 | New |
| RSM US Wealth Management LLC | 1,433 | $238.8K | 0.00% | +1,433 | New |
| Fifth Third Wealth Advisors LLC | 1,460 | $243.2K | 0.01% | +4+0.3% | Added |
| apricus wealth, LLC | 1,462 | $243.6K | 0.14% | +159+12.2% | Added |
| Assetmark, Inc | 1,466 | $244.2K | 0.00% | +300+25.7% | Added |
| Versant Capital Management, Inc | 1,480 | $246.6K | 0.04% | +1,424+2,542.9% | Added |
| Corient IA LLC | 1,500 | $249.9K | 0.18% | +1,500 | New |
| Cetera Investment Advisers | 1,600 | $266.6K | 0.00% | −246−13.3% | Reduced |
| Mission Wealth Management, LP | 1,605 | $267.4K | 0.01% | 00.0% | Unchanged |
| Silver Oak Securities, Inc | 1,638 | $267.9K | 0.03% | +1,638 | New |
| M&G Plc | 1,610 | $268.9K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 1,623 | $270.0K | 0.00% | +1,623 | New |
| Pitcairn Co | 1,625 | $270.7K | 0.02% | −5−0.3% | Reduced |
| Aigen Investment Management, LP | 1,627 | $271.1K | 0.04% | +1,627 | New |
| O'Shaughnessy Asset Management, LLC | 1,635 | $272.4K | 0.00% | −29,740−94.8% | Reduced |
| Shelton Capital Management | 1,644 | $273.9K | 0.01% | −69−4.0% | Reduced |
| CIBC Asset Management Inc | 1,669 | $278.1K | 0.00% | +38+2.3% | Added |
| Janney Montgomery Scott LLC | 1,762 | $294.0K | 0.00% | −1,590−47.4% | Reduced |
| Entropy Technologies, LP | 1,803 | $300.4K | 0.03% | +1,803 | New |
| SeaCrest Wealth Management, LLC | 1,840 | $306.5K | 0.03% | +50+2.8% | Added |
| ProShare Advisors LLC | 1,894 | $315.5K | 0.00% | −184−8.9% | Reduced |
| North Star Asset Management Inc | 1,910 | $318.2K | 0.01% | −655−25.5% | Reduced |
| Allianz Asset Management GmbH | 1,912 | $318.5K | 0.00% | +33+1.8% | Added |
| Alamea Verwaltungs GmbH | 1,963 | $327.0K | 0.28% | +1,963 | New |
| Maryland State Retirement & Pension System | 2,028 | $337.9K | 0.01% | −419−17.1% | Reduced |
| Jane Street Group, LLC | 2,050 | $341.5K | 0.00% | −28,437−93.3% | Reduced |
| Northwest & Ethical Investments L.P. | 2,100 | $349.3K | 0.01% | +1,400+200.0% | Added |
| KBC Group NV | 2,105 | $351.0K | 0.00% | −17,017−89.0% | Reduced |
| Atria Investments LLC | 2,117 | $352.7K | 0.00% | +91+4.5% | Added |
| Bridgewater Associates, LP | 2,118 | $352.9K | 0.00% | −9,273−81.4% | Reduced |
| Hardy Reed LLC | 2,172 | $361.6K | 0.03% | 00.0% | Unchanged |
| BancorpSouth Bank | 2,172 | $361.9K | 0.03% | 00.0% | Unchanged |
| M&T Bank Corp | 2,184 | $364.0K | 0.00% | −476−17.9% | Reduced |
| MML Investors Services, LLC | 2,195 | $366.0K | 0.00% | +228+11.6% | Added |
| New Age Alpha Advisors, LLC | 2,270 | $378.2K | 0.02% | −1,701−42.8% | Reduced |
| Coldstream Capital Management Inc | 2,273 | $378.7K | 0.01% | −18−0.8% | Reduced |
| Utah Retirement Systems | 2,300 | $383.2K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 2,338 | $389.0K | 0.01% | +1,513+183.4% | Added |
| Wealth Enhancement Advisory Services, LLC | 2,402 | $400.2K | 0.00% | +41+1.7% | Added |
| Mariner, LLC | 2,405 | $400.3K | 0.00% | −1,054−30.5% | Reduced |
| KCM Investment Advisors LLC | 2,515 | $419.0K | 0.02% | +100+4.1% | Added |
| Wesleyan Assurance Society | 2,550 | $424.0K | 0.03% | 00.0% | Unchanged |
| Buckhead Capital Management LLC | 2,650 | $441.5K | 0.14% | 00.0% | Unchanged |
| Bridgefront Capital, LLC | 2,670 | $444.8K | 0.13% | +2,670 | New |
| 180 Wealth Advisors, LLC | 2,757 | $459.3K | 0.07% | +4+0.1% | Added |
| Vident Advisory, LLC | 2,798 | $466.1K | 0.01% | +2,798 | New |
| United Services Automobile Association | 2,912 | $476.3K | 0.01% | +2,912 | New |
| Empowered Funds, LLC | 2,864 | $477.1K | 0.01% | −1,027−26.4% | Reduced |
| Kestra Private Wealth Services, LLC | 2,892 | $481.8K | 0.01% | +2,892 | New |
| Malaga Cove Capital, LLC | 2,906 | $484.1K | 0.21% | −78−2.6% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 2,980 | $496.5K | 0.02% | −299−9.1% | Reduced |
| Lido Advisors, LLC | 3,127 | $521.0K | 0.00% | −229−6.8% | Reduced |
| Crossmark Global Holdings, Inc. | 3,173 | $528.6K | 0.01% | +13+0.4% | Added |
| Prudential Financial Inc | 3,190 | $531.5K | 0.00% | +739+30.2% | Added |
| Truist Financial Corp | 3,198 | $532.8K | 0.00% | −187−5.5% | Reduced |
| Vestmark Advisory Solutions, Inc. | 3,274 | $545.4K | 0.01% | +189+6.1% | Added |
| Oppenheimer Asset Management Inc. | 3,316 | $552.4K | 0.01% | −1,252−27.4% | Reduced |
| Oxford Financial Group Ltd | 3,430 | $571.4K | 0.04% | 00.0% | Unchanged |
| Securian Asset Management, Inc | 3,433 | $571.9K | 0.02% | +100+3.0% | Added |
| Exchange Traded Concepts, LLC | 3,539 | $589.6K | 0.01% | −7,013−66.5% | Reduced |
| Inceptionr LLC | 3,583 | $596.9K | 0.18% | +791+28.3% | Added |
| Verus Capital Partners, LLC | 3,651 | $608.3K | 0.06% | 00.0% | Unchanged |
| SummitTX Capital, L.P. | 3,773 | $628.6K | 0.03% | +3,773 | New |
| Vestcor Inc | 3,825 | $637.0K | 0.02% | +3,825 | New |
| Kovitz Investment Group Partners, LLC | 3,916 | $652.4K | 0.00% | +24+0.6% | Added |
| Harvest Fund Management Co., Ltd | 3,929 | $654.0K | 0.03% | +38+1.0% | Added |
| Pinebridge Investments, L.P. | 3,954 | $658.7K | 0.01% | +3,954 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 4,039 | $672.9K | 0.00% | +115+2.9% | Added |
| Quadrant Capital Group LLC | 4,048 | $674.4K | 0.03% | +2,640+187.5% | Added |
| Steel Peak Wealth Management LLC | 4,070 | $678.1K | 0.03% | −35−0.9% | Reduced |
| Private Advisor Group, LLC | 4,255 | $708.9K | 0.00% | −5−0.1% | Reduced |
| US Bancorp | 4,326 | $720.7K | 0.00% | +46+1.1% | Added |
| Assenagon Asset Management S.A. | 4,379 | $729.5K | 0.00% | −211,672−98.0% | Reduced |
| Quantitative Investment Management, LLC | 4,462 | $743.0K | 0.07% | −480−9.7% | Reduced |
| NEOS Investment Management LLC | 4,543 | $756.9K | 0.01% | −5,037−52.6% | Reduced |
| Tema ETFs LLC | 4,543 | $756.9K | 0.23% | −5,037−52.6% | Reduced |
| HighTower Advisors, LLC | 4,550 | $758.0K | 0.00% | −2,263−33.2% | Reduced |
| Brinker Capital Investments, LLC | 4,767 | $794.2K | 0.01% | −11−0.2% | Reduced |
| Orion Portfolio Solutions, LLC | 4,767 | $794.2K | 0.01% | −11−0.2% | Reduced |
| Public Employees Retirement Association of Colorado | 4,841 | $807.0K | 0.00% | 00.0% | Unchanged |
| Point72 Hong Kong Ltd | 4,852 | $808.4K | 0.06% | +4,852 | New |
| CAPROCK Group, Inc. | 4,913 | $818.5K | 0.02% | +4,913 | New |
| Landscape Capital Management, L.L.C. | 4,998 | $832.7K | 0.07% | −588−10.5% | Reduced |