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 |
|---|---|---|---|---|---|
| Mutual of America Capital Management LLC | 21,325 | $3.15M | 0.03% | −1,054−4.7% | Reduced |
| Cardinal Capital Management | 21,180 | $3.13M | 0.43% | +943+4.7% | Added |
| Envestnet Asset Management Inc | 21,142 | $3.12M | 0.00% | −6,092−22.4% | Reduced |
| ING Groep NV | 20,800 | $3.07M | 0.02% | +20,800 | New |
| Treasurer of the State of North Carolina | 20,268 | $2.99M | 0.01% | −785−3.7% | Reduced |
| Janus Henderson Group PLC | 20,000 | $2.95M | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 19,995 | $2.95M | 0.02% | +3,052+18.0% | Added |
| Commerce Bank | 18,891 | $2.79M | 0.02% | −539−2.8% | Reduced |
| Wells Fargo & Company | 17,280 | $2.55M | 0.00% | −909−5.0% | Reduced |
| Entropy Technologies, LP | 16,809 | $2.48M | 0.19% | +8,809+110.1% | Added |
| Kayne Anderson Rudnick Investment Management LLC | 16,757 | $2.47M | 0.01% | +16,752+335,040.0% | Added |
| State of New Jersey Common Pension Fund D | 16,652 | $2.46M | 0.01% | +785+4.9% | Added |
| Millennium Management LLC | 16,131 | $2.38M | 0.00% | +12,224+312.9% | Added |
| Canada Pension Plan Investment Board | 15,800 | $2.33M | 0.00% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 15,565 | $2.30M | 0.03% | +3,145+25.3% | Added |
| Brown Advisory Inc | 15,533 | $2.29M | 0.00% | +10.0% | Added |
| Landscape Capital Management, L.L.C. | 15,292 | $2.26M | 0.14% | +8,263+117.6% | Added |
| ADAR1 Capital Management, LLC | 15,000 | $2.21M | 0.22% | +15,000 | New |
| Yousif Capital Management, LLC | 14,884 | $2.20M | 0.02% | −757−4.8% | Reduced |
| Thrivent Financial for Lutherans | 14,851 | $2.19M | 0.00% | +4,255+40.2% | Added |
| Teachers Retirement System of the State of Kentucky | 14,771 | $2.18M | 0.02% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 14,514 | $2.14M | 0.01% | −3,656−20.1% | Reduced |
| BNP Paribas Arbitrage, SA | 14,507 | $2.14M | 0.00% | +10,024+223.6% | Added |
| Public Employees Retirement System of Ohio | 14,396 | $2.12M | 0.01% | +64+0.4% | Added |
| Empower Advisory Group, LLC | 14,105 | $2.08M | 0.01% | +45+0.3% | Added |
| Arizona State Retirement System | 13,609 | $2.01M | 0.01% | +224+1.7% | Added |
| Montanaro Asset Management Ltd | 12,960 | $1.91M | 0.48% | −9,900−43.3% | Reduced |
| Louisiana State Employees Retirement System | 12,900 | $1.90M | 0.03% | +200+1.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 12,859 | $1.90M | 0.00% | +1,797+16.2% | Added |
| Handelsbanken Fonder AB | 12,330 | $1.82M | 0.01% | 00.0% | Unchanged |
| Quantitative Investment Management, LLC | 12,025 | $1.77M | 0.25% | +12,025 | New |
| Picton Mahoney Asset Management | 11,970 | $1.77M | 0.02% | −32,587−73.1% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 11,851 | $1.75M | 0.01% | +289+2.5% | Added |
| Lockerman Financial Group, Inc. | 11,800 | $1.74M | 2.19% | −1,300−9.9% | Reduced |
| Paradigm Capital Management Inc | 11,353 | $1.68M | 0.07% | 00.0% | Unchanged |
| Creative Planning | 11,034 | $1.63M | 0.00% | −136−1.2% | Reduced |
| State of Michigan Retirement System | 10,996 | $1.62M | 0.01% | +200+1.9% | Added |
| Schonfeld Strategic Advisors LLC | 10,884 | $1.61M | 0.01% | −3,355−23.6% | Reduced |
| Perpetual Ltd | 10,648 | $1.57M | 0.02% | −10,524−49.7% | Reduced |
| Sterling Capital Management LLC | 10,613 | $1.57M | 0.02% | −12,654−54.4% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 10,293 | $1.52M | 0.02% | +246+2.4% | Added |
| Dark Forest Capital Management LP | 10,009 | $1.48M | 0.06% | +10,009 | New |
| Harbor Capital Advisors, Inc. | 9,932 | $1.47M | 0.11% | −16,480−62.4% | Reduced |
| New Mexico Educational Retirement Board | 9,900 | $1.46M | 0.05% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 9,800 | $1.45M | 0.01% | +400+4.3% | Added |
| Xponance, Inc. | 9,430 | $1.39M | 0.01% | +224+2.4% | Added |
| Verition Fund Management LLC | 9,403 | $1.39M | 0.01% | −8,910−48.7% | Reduced |
| Oregon Public Employees Retirement Fund | 9,274 | $1.37M | 0.02% | +55+0.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,190 | $1.36M | 0.00% | +333+3.8% | Added |
| SG Americas Securities, LLC | 8,919 | $1.32M | 0.00% | −5,847−39.6% | Reduced |
| Bryn Mawr Trust Co | 8,899 | $1.31M | 0.03% | −1,051−10.6% | Reduced |
| Ameritas Investment Partners, Inc. | 8,656 | $1.28M | 0.04% | −88−1.0% | Reduced |
| Birchview Capital, LP | 8,280 | $1.22M | 0.92% | 00.0% | Unchanged |
| De Burlo Group Inc | 8,052 | $1.19M | 0.14% | −50−0.6% | Reduced |
| Mitsubishi UFJ Asset Management (UK) Ltd. | 8,000 | $1.18M | 0.57% | 00.0% | Unchanged |
| LPL Financial LLC | 7,322 | $1.08M | 0.00% | +18+0.2% | Added |
| The PNC Financial Services Group, Inc. | 7,252 | $1.07M | 0.00% | +854+13.3% | Added |
| Pathstone Holdings, LLC | 6,960 | $1.03M | 0.00% | −139−2.0% | Reduced |
| Pictet Asset Management Holding SA | 6,841 | $1.01M | 0.00% | +162+2.4% | Added |
| Fieldview Capital Management, LLC | 6,812 | $1.01M | 0.16% | +6,812 | New |
| JustInvest LLC | 6,793 | $1.00M | 0.01% | +352+5.5% | Added |
| Deutsche Bank AG | 6,605 | $974.6K | 0.00% | +293+4.6% | Added |
| Navellier & Associates Inc | 6,310 | $931.0K | 0.09% | +6,310 | New |
| OP Asset Management Ltd | 6,308 | $930.7K | 0.01% | +6,308 | New |
| Pacer Advisors, Inc. | 6,080 | $897.1K | 0.00% | +6,080 | New |
| Teacher Retirement System of Texas | 6,033 | $890.2K | 0.00% | −5,638−48.3% | Reduced |
| Sherbrooke Park Advisers LLC | 5,905 | $871.3K | 0.40% | +5,905 | New |
| Polymer Capital Management (US) LLC | 5,876 | $867.0K | 0.12% | +5,876 | New |
| Bayesian Capital Management, LP | 5,779 | $852.7K | 0.17% | +5,779 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 5,772 | $851.7K | 0.00% | −868−13.1% | Reduced |
| Graham Capital Management, L.P. | 5,770 | $851.4K | 0.03% | −4,710−44.9% | Reduced |
| B.O.S.S. Retirement Advisors, LLC | 5,337 | $787.5K | 0.19% | +5+0.1% | Added |
| Blueshift Asset Management, LLC | 5,330 | $786.4K | 0.24% | +5,330 | New |
| Steel Peak Wealth Management LLC | 5,292 | $780.8K | 0.03% | +1,225+30.1% | Added |
| Guggenheim Capital LLC | 5,276 | $778.5K | 0.01% | −397−7.0% | Reduced |
| Occudo Quantitative Strategies LP | 5,148 | $759.6K | 0.09% | +3,033+143.4% | Added |
| Federated Hermes, Inc. | 5,113 | $754.4K | 0.00% | +912+21.7% | Added |
| State of Alaska, Department of Revenue | 5,047 | $744.0K | 0.01% | −7−0.1% | Reduced |
| Malaga Cove Capital, LLC | 5,016 | $740.1K | 0.27% | +2,190+77.5% | Added |
| Bank of Montreal | 5,000 | $737.8K | 0.00% | −563−10.1% | Reduced |
| Neuberger Berman Group LLC | 4,900 | $723.0K | 0.00% | −169−3.3% | Reduced |
| Russell Investments Group, Ltd. | 4,889 | $721.5K | 0.00% | −6,046−55.3% | Reduced |
| Quadrant Capital Group LLC | 4,881 | $720.2K | 0.02% | −100−2.0% | Reduced |
| Voya Investment Management LLC | 4,876 | $719.5K | 0.00% | −14,705−75.1% | Reduced |
| Stifel Financial Corp | 4,700 | $693.5K | 0.00% | +4,700 | New |
| Franklin Resources Inc | 4,696 | $692.9K | 0.00% | −206−4.2% | Reduced |
| Public Employees Retirement Association of Colorado | 4,685 | $691.0K | 0.00% | 00.0% | Unchanged |
| Wetherby Asset Management Inc | 4,603 | $679.2K | 0.03% | +46+1.0% | Added |
| 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 |
| Eukles Asset Management | 4,438 | $654.8K | 0.25% | −415−8.6% | Reduced |
| Exchange Traded Concepts, LLC | 4,329 | $638.7K | 0.01% | +991+29.7% | Added |
| Private Advisor Group, LLC | 4,246 | $626.5K | 0.00% | +20.0% | Added |
| HighTower Advisors, LLC | 4,153 | $612.8K | 0.00% | +264+6.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 4,152 | $612.6K | 0.00% | −167−3.9% | Reduced |
| Bryce Point Capital, LLC | 4,135 | $610.1K | 0.74% | −750−15.4% | Reduced |
| CAPROCK Group, Inc. | 4,244 | $592.9K | 0.01% | +4,244 | New |
| PharVision Advisers, LLC | 3,909 | $576.8K | 0.32% | +3,909 | New |
| Vestcor Inc | 3,825 | $564.0K | 0.02% | 00.0% | Unchanged |
| Kovitz Investment Group Partners, LLC | 3,821 | $563.8K | 0.00% | −575−13.1% | Reduced |