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 |
|---|---|---|---|---|---|
| Stifel Financial Corp | 4,526 | $588.7K | 0.00% | −174−3.7% | Reduced |
| Voya Investment Management LLC | 4,413 | $574.0K | 0.00% | −463−9.5% | Reduced |
| Franklin Resources Inc | 4,384 | $570.2K | 0.00% | −312−6.6% | Reduced |
| Eukles Asset Management | 4,350 | $565.8K | 0.22% | −88−2.0% | Reduced |
| 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 |
| New Age Alpha Advisors, LLC | 4,238 | $551.2K | 0.02% | +2,067+95.2% | Added |
| Private Advisor Group, LLC | 4,225 | $549.5K | 0.00% | −21−0.5% | Reduced |
| Captrust Financial Advisors | 3,852 | $501.0K | 0.00% | +3,852 | New |
| Vestcor Inc | 3,825 | $497.0K | 0.01% | 00.0% | Unchanged |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 3,797 | $493.8K | 0.02% | −15−0.4% | Reduced |
| US Bancorp | 3,764 | $489.5K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 3,747 | $487.3K | 0.00% | −406−9.8% | Reduced |
| Quadrant Capital Group LLC | 3,746 | $487.2K | 0.01% | −1,135−23.3% | Reduced |
| Gsa Capital Partners LLP | 3,682 | $479.0K | 0.04% | +3,682 | New |
| Federated Hermes, Inc. | 3,672 | $477.6K | 0.00% | −1,441−28.2% | Reduced |
| 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 |
| Verus Capital Partners, LLC | 3,651 | $474.8K | 0.03% | 00.0% | Unchanged |
| Krilogy Financial LLC | 3,362 | $471.4K | 0.02% | +3,362 | New |
| Versor Investments LP | 3,564 | $463.5K | 0.07% | +1,312+58.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 3,502 | $446.2K | 0.00% | −650−15.7% | Reduced |
| Oxford Financial Group Ltd | 3,430 | $446.1K | 0.02% | 00.0% | Unchanged |
| Securian Asset Management, Inc | 3,333 | $433.5K | 0.02% | −100−2.9% | Reduced |
| M&T Bank Corp | 3,324 | $431.9K | 0.00% | +317+10.5% | Added |
| NorthCrest Asset Manangement, LLC | 3,133 | $419.8K | 0.01% | +3,133 | New |
| CenterBook Partners LP | 3,148 | $409.4K | 0.02% | +3,148 | New |
| RMB Capital Management, LLC | 3,143 | $408.8K | 0.01% | +3,143 | New |
| Farringdon Capital, Ltd. | 3,141 | $408.5K | 0.10% | +3,141 | New |
| Havemeyer Place LP | 3,020 | $392.8K | 0.08% | +3,020 | New |
| Merit Financial Group, LLC | 2,981 | $387.7K | 0.00% | +2,981 | New |
| Coldstream Capital Management Inc | 2,963 | $385.4K | 0.00% | +295+11.1% | Added |
| State of Wyoming | 2,896 | $376.7K | 0.04% | −526−15.4% | Reduced |
| 111 Capital | 2,871 | $373.4K | 0.08% | +1,205+72.3% | 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 |
| 180 Wealth Advisors, LLC | 2,662 | $346.2K | 0.04% | +42+1.6% | Added |
| Buckhead Capital Management LLC | 2,650 | $344.7K | 0.12% | 00.0% | Unchanged |
| Crossmark Global Holdings, Inc. | 2,640 | $343.4K | 0.00% | 00.0% | Unchanged |
| Wesleyan Assurance Society | 2,550 | $331.0K | 0.02% | 00.0% | Unchanged |
| KCM Investment Advisors LLC | 2,515 | $327.1K | 0.01% | 00.0% | Unchanged |
| Oppenheimer Asset Management Inc. | 2,503 | $325.5K | 0.00% | −294−10.5% | Reduced |
| Orser Capital Management, LLC | 2,450 | $318.6K | 0.19% | +2,450 | New |
| TownSquare Capital, LLC | 2,444 | $317.9K | 0.07% | −241−9.0% | Reduced |
| Utah Retirement Systems | 2,382 | $309.8K | 0.00% | 00.0% | Unchanged |
| Headlands Technologies LLC | 2,350 | $305.6K | 0.03% | +2,350 | New |
| First Trust Advisors LP | 2,341 | $304.5K | 0.00% | −59,593−96.2% | Reduced |
| Fiduciary Trust Co | 2,339 | $304.2K | 0.00% | +304+14.9% | Added |
| HB Wealth Management, LLC | 2,337 | $303.9K | 0.00% | +2,337 | New |
| Natixis | 2,286 | $297.3K | 0.00% | +2,286 | New |
| Inceptionr LLC | 2,202 | $286.4K | 0.08% | +2,202 | New |
| Swiss Life Asset Management Ltd | 2,173 | $282.6K | 0.00% | 00.0% | Unchanged |
| Hardy Reed LLC | 2,172 | $282.5K | 0.02% | 00.0% | Unchanged |
| BancorpSouth Bank | 2,172 | $282.5K | 0.02% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 2,144 | $278.8K | 0.00% | +1,070+99.6% | Added |
| nVerses Capital, LLC | 2,067 | $268.8K | 0.60% | +2,067 | New |
| Maryland State Retirement & Pension System | 2,028 | $263.8K | 0.01% | 00.0% | Unchanged |
| Aigen Investment Management, LP | 2,018 | $262.5K | 0.06% | +2,018 | New |
| Beese Fulmer Investment Management, Inc. | 2,002 | $260.4K | 0.02% | +2,002 | New |
| Virtu Financial LLC | 1,985 | $258.0K | 0.01% | +1,985 | New |
| Prudential Financial Inc | 1,958 | $256.6K | 0.00% | −1,764−47.4% | Reduced |
| Silver Oak Securities, Inc | 1,955 | $256.2K | 0.02% | 00.0% | Unchanged |
| Blueshift Asset Management, LLC | 1,966 | $255.7K | 0.07% | −3,364−63.1% | Reduced |
| Chicago Partners Investment Group LLC | 1,796 | $254.1K | 0.01% | +1,796 | New |
| Mission Wealth Management, LP | 1,885 | $245.2K | 0.00% | +279+17.4% | Added |
| Assetmark, Inc | 1,850 | $240.6K | 0.00% | +97+5.5% | Added |
| ProShare Advisors LLC | 1,830 | $238.0K | 0.00% | −134−6.8% | 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 |
| Vident Advisory, LLC | 1,748 | $227.3K | 0.00% | −55−3.1% | Reduced |
| Sentinus, LLC | 1,747 | $227.2K | 0.02% | +1,747 | New |
| Allworth Financial LP | 1,695 | $220.5K | 0.00% | +790+87.3% | Added |
| Sanctuary Advisors, LLC | 1,672 | $217.4K | 0.00% | +1,672 | New |
| CIBC Asset Management Inc | 1,669 | $217.1K | 0.00% | 00.0% | Unchanged |
| Pinnacle Associates Ltd | 1,667 | $216.8K | 0.00% | +1,667 | New |
| M&G Plc | 1,623 | $211.0K | 0.00% | 00.0% | Unchanged |
| Bridgewater Associates, LP | 1,619 | $210.6K | 0.00% | −95−5.5% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 1,611 | $209.5K | 0.00% | +1,611 | New |
| SummitTX Capital, L.P. | 1,603 | $208.5K | 0.01% | +1,603 | New |
| North Dakota State Investment Board | 1,602 | $208.4K | 0.01% | +1,602 | New |
| Shelton Capital Management | 1,592 | $207.1K | 0.00% | 00.0% | Unchanged |
| Inscription Capital, LLC | 1,570 | $204.2K | 0.02% | −41−2.5% | Reduced |
| Mirabella Financial Services LLP | 1,551 | $201.7K | 0.02% | +1,551 | New |
| Vontobel Holding Ltd. | 1,549 | $201.5K | 0.00% | +1,549 | New |
| Clearstead Advisors, LLC | 1,389 | $180.7K | 0.00% | +919+195.5% | Added |
| KBC Group NV | 1,258 | $164.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,202 | $156.3K | 0.00% | −332−21.6% | Reduced |
| Whittier Trust Co | 1,134 | $154.9K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 976 | $126.9K | 0.00% | +749+330.0% | Added |
| Caitong International Asset Management Co., Ltd | 890 | $115.8K | 0.03% | +890 | New |
| Essential Partners LLC | 887 | $115.4K | 0.04% | +857+2,856.7% | Added |
| Eurizon Capital SGR S.p.A. | 784 | $102.6K | 0.00% | +784 | New |
| Hantz Financial Services, Inc. | 655 | $85.0K | 0.00% | +75+12.9% | Added |
| Harbor Investment Advisory, LLC | 624 | $81.2K | 0.01% | −375−37.5% | Reduced |
| Fifth Third Bancorp | 577 | $75.0K | 0.00% | +1+0.2% | Added |
| IFP Advisors, Inc | 509 | $66.2K | 0.00% | +493+3,081.3% | Added |
| Advisor Group Holdings, Inc. | 477 | $62.1K | 0.00% | −204−30.0% | Reduced |
| Umb Bank N A | 465 | $60.5K | 0.00% | +226+94.6% | Added |
| Bayforest Capital Ltd | 464 | $60.3K | 0.04% | −3,095−87.0% | Reduced |
| Signaturefd, LLC | 408 | $53.1K | 0.00% | +26+6.8% | Added |