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 2024
Institutional positions in Masimo Corp as of Jun 30, 2024. 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
- 352
- +15 vs. Q1 2024
- Shares held
- 49.5M
- −2.12M (−4.1%) vs. Q1 2024
- Total value
- $6.24B
- −$1.35B (−17.8%) vs. Q1 2024
- New holders
- 56
- 117 more added
- Sold out
- 41
- 109 more reduced
2 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2024
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Roubaix Capital, LLC | 24,839 | $3.13M | 1.98% | +24,839 | New |
| MetLife Investment Management | 24,482 | $3.08M | 0.02% | −1,662−6.4% | Reduced |
| Picton Mahoney Asset Management | 24,050 | $3.03M | 0.13% | −37,940−61.2% | Reduced |
| Westmount Partners, LLC | 25,991 | $3.03M | 1.00% | −433−1.6% | Reduced |
| SEI Investments Co | 23,594 | $2.97M | 0.00% | −72,048−75.3% | Reduced |
| Capital Fund Management S.A. | 23,539 | $2.96M | 0.03% | +7,232+44.3% | Added |
| HRT Financial LP | 23,365 | $2.94M | 0.02% | +23,365 | New |
| Amalgamated Bank | 22,766 | $2.87M | 0.02% | −1,840−7.5% | Reduced |
| Susquehanna International Group, LLP | 22,744 | $2.86M | 0.00% | +7,424+48.5% | Added |
| Envestnet Asset Management Inc | 22,303 | $2.81M | 0.00% | −111−0.5% | Reduced |
| Janus Henderson Group PLC | 21,800 | $2.75M | 0.00% | −230−1.0% | Reduced |
| Simplify Asset Management Inc. | 21,670 | $2.73M | 0.24% | +11,838+120.4% | Added |
| Sofinnova Investments, Inc. | 20,161 | $2.54M | 0.16% | +161+0.8% | Added |
| Exome Asset Management LLC | 19,800 | $2.49M | 2.22% | +19,800 | New |
| State of Tennessee, Treasury Department | 19,450 | $2.45M | 0.01% | −5,550−22.2% | Reduced |
| Abn Amro Investment Solutions | 19,439 | $2.45M | 0.04% | −217−1.1% | Reduced |
| Yousif Capital Management, LLC | 19,178 | $2.42M | 0.03% | −1,389−6.8% | Reduced |
| Treasurer of the State of North Carolina | 18,635 | $2.35M | 0.01% | −644−3.3% | Reduced |
| State of Wisconsin Investment Board | 18,457 | $2.32M | 0.01% | −1,986−9.7% | Reduced |
| Cramer Rosenthal McGlynn LLC | 18,081 | $2.28M | 0.13% | +18,081 | New |
| Brown Advisory Inc | 17,571 | $2.21M | 0.00% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 16,746 | $2.11M | 0.01% | −149−0.9% | Reduced |
| State of New Jersey Common Pension Fund D | 16,542 | $2.08M | 0.01% | −10,124−38.0% | Reduced |
| Tudor Investment Corp Et Al | 16,335 | $2.06M | 0.02% | +16,335 | New |
| Teachers Retirement System of the State of Kentucky | 15,841 | $2.00M | 0.02% | 00.0% | Unchanged |
| Barclays PLC | 15,820 | $1.99M | 0.00% | −50,220−76.0% | Reduced |
| Creative Planning | 15,616 | $1.97M | 0.00% | −1,080−6.5% | Reduced |
| Cardinal Capital Management | 15,440 | $1.94M | 0.33% | +676+4.6% | Added |
| Birchview Capital, LP | 15,280 | $1.92M | 1.78% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 14,768 | $1.86M | 0.03% | +13,798+1,422.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 14,624 | $1.84M | 0.00% | +14,624 | New |
| Lockerman Financial Group, Inc. | 14,400 | $1.81M | 3.29% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 14,161 | $1.78M | 0.00% | 00.0% | Unchanged |
| Empower Advisory Group, LLC | 14,060 | $1.77M | 0.01% | 00.0% | Unchanged |
| Voya Investment Management LLC | 13,949 | $1.76M | 0.00% | −4,297−23.6% | Reduced |
| Algert Global LLC | 13,879 | $1.75M | 0.06% | +13,879 | New |
| Advisors Asset Management, Inc. | 13,715 | $1.73M | 0.03% | +4,706+52.2% | Added |
| NEOS Investment Management LLC | 13,489 | $1.70M | 0.07% | +4,669+52.9% | Added |
| Jump Financial, LLC | 13,295 | $1.67M | 0.03% | +13,295 | New |
| Fox Run Management, L.L.C. | 13,068 | $1.65M | 0.31% | +13,068 | New |
| Louisiana State Employees Retirement System | 12,600 | $1.59M | 0.03% | −200−1.6% | Reduced |
| Arizona State Retirement System | 12,591 | $1.59M | 0.01% | +247+2.0% | Added |
| Gsa Capital Partners LLP | 12,208 | $1.54M | 0.11% | +12,208 | New |
| Schonfeld Strategic Advisors LLC | 11,670 | $1.47M | 0.01% | +11,670 | New |
| Paradigm Capital Management Inc | 11,353 | $1.43M | 0.07% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 11,320 | $1.43M | 0.00% | −45,934−80.2% | Reduced |
| Handelsbanken Fonder AB | 11,230 | $1.41M | 0.01% | +1,800+19.1% | Added |
| Quantitative Investment Management, LLC | 11,134 | $1.40M | 0.15% | +11,134 | New |
| Engineers Gate Manager LP | 11,074 | $1.39M | 0.03% | +11,074 | New |
| State of Michigan Retirement System | 10,696 | $1.35M | 0.01% | −200−1.8% | Reduced |
| Exchange Traded Concepts, LLC | 10,688 | $1.35M | 0.03% | −296−2.7% | Reduced |
| American Century Companies Inc | 10,671 | $1.34M | 0.00% | +1,671+18.6% | Added |
| Bridgewater Associates, LP | 10,462 | $1.32M | 0.01% | −3,425−24.7% | Reduced |
| Intech Investment Management LLC | 10,278 | $1.29M | 0.02% | +10,278 | New |
| Northwestern Mutual Investment Management Company, LLC | 9,952 | $1.25M | 0.03% | +52+0.5% | Added |
| New Mexico Educational Retirement Board | 9,900 | $1.25M | 0.04% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 9,884 | $1.24M | 0.01% | +65+0.7% | Added |
| De Burlo Group Inc | 9,852 | $1.24M | 0.17% | −950−8.8% | Reduced |
| Victory Capital Management Inc | 9,816 | $1.24M | 0.00% | −153−1.5% | Reduced |
| Teza Capital Management LLC | 9,779 | $1.23M | 0.15% | +9,779 | New |
| Squarepoint Ops LLC | 9,686 | $1.22M | 0.00% | +9,686 | New |
| ClariVest Asset Management LLC | 9,609 | $1.21M | 0.12% | +9,609 | New |
| Ameritas Investment Partners, Inc. | 9,485 | $1.19M | 0.04% | −315−3.2% | Reduced |
| Illinois Municipal Retirement Fund | 9,309 | $1.17M | 0.02% | 00.0% | Unchanged |
| Bayesian Capital Management, LP | 9,307 | $1.17M | 0.13% | +9,307 | New |
| Oregon Public Employees Retirement Fund | 9,266 | $1.17M | 0.02% | −1,700−15.5% | Reduced |
| Aquatic Capital Management LLC | 8,800 | $1.11M | 0.04% | +6,700+319.0% | Added |
| Sherbrooke Park Advisers LLC | 8,223 | $1.04M | 0.18% | +8,223 | New |
| Juncture Wealth Strategies, LLC | 7,992 | $1.01M | 0.42% | +5,965+294.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,877 | $992.0K | 0.00% | +610+8.4% | Added |
| Advisor Group Holdings, Inc. | 7,709 | $970.7K | 0.00% | +2,807+57.3% | Added |
| Dynamic Technology Lab Private Ltd | 7,351 | $926.0K | 0.10% | +7,351 | New |
| Eukles Asset Management | 7,299 | $919.2K | 0.40% | −129−1.7% | Reduced |
| Utah Retirement Systems | 7,121 | $896.8K | 0.01% | −400−5.3% | Reduced |
| Millrace Asset Group, Inc. | 7,002 | $882.0K | 0.86% | −1,866−21.0% | Reduced |
| Mariner, LLC | 6,872 | $865.7K | 0.00% | +2,008+41.3% | Added |
| Xponance, Inc. | 6,748 | $849.8K | 0.01% | −2,392−26.2% | Reduced |
| Allianz Asset Management GmbH | 6,707 | $844.7K | 0.00% | +1,518+29.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 6,687 | $842.2K | 0.00% | −2,034−23.3% | Reduced |
| Pacer Advisors, Inc. | 6,682 | $841.5K | 0.00% | +68+1.0% | Added |
| Raymond James Trust N.A. | 6,414 | $807.8K | 0.02% | +800+14.3% | Added |
| Simplex Trading, LLC | 6,360 | $800.0K | 0.03% | +765+13.7% | Added |
| Navellier & Associates Inc | 6,310 | $794.7K | 0.09% | 00.0% | Unchanged |
| Bank of Montreal | 5,729 | $759.6K | 0.00% | −5,788−50.3% | Reduced |
| Blueshift Asset Management, LLC | 5,783 | $728.3K | 0.24% | +5,783 | New |
| Deutsche Bank AG | 5,713 | $719.5K | 0.00% | +183+3.3% | Added |
| Pathstone Holdings, LLC | 5,678 | $715.1K | 0.00% | +135+2.4% | Added |
| Pictet Asset Management Holding SA | 5,401 | $680.2K | 0.00% | −114−2.1% | Reduced |
| JustInvest LLC | 5,374 | $676.8K | 0.01% | +166+3.2% | Added |
| HighTower Advisors, LLC | 5,218 | $670.0K | 0.00% | +591+12.8% | Added |
| Versor Investments LP | 5,278 | $664.7K | 0.12% | +5,278 | New |
| Brinker Capital Investments, LLC | 5,221 | $657.5K | 0.01% | +80+1.6% | Added |
| Orion Portfolio Solutions, LLC | 5,221 | $657.5K | 0.01% | +80+1.6% | Added |
| Edgestream Partners, L.P. | 5,124 | $645.3K | 0.03% | +5,124 | New |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 4,919 | $619.5K | 0.03% | +4,336+743.7% | Added |
| Public Employees Retirement Association of Colorado | 4,841 | $610.0K | 0.00% | −234−4.6% | Reduced |
| State of Alaska, Department of Revenue | 4,794 | $603.0K | 0.01% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 4,600 | $579.3K | 0.05% | +4,600 | New |
| Janney Montgomery Scott LLC | 4,505 | $567.0K | 0.00% | −765−14.5% | Reduced |
| Guggenheim Capital LLC | 4,499 | $566.6K | 0.00% | −230−4.9% | Reduced |