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 2023
Institutional positions in Masimo Corp as of Sep 30, 2023. 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
- 357
- −57 vs. Q2 2023
- Shares held
- 47.7M
- +1.72M (+3.7%) vs. Q2 2023
- Total value
- $4.18B
- −$3.38B (−44.7%) vs. Q2 2023
- New holders
- 59
- 81 more added
- Sold out
- 116
- 158 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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 2023
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Gabelli Funds LLC | 33,000 | $2.89M | 0.02% | 00.0% | Unchanged |
| Great West Life Assurance Co | 32,519 | $2.85M | 0.01% | −1,226−3.6% | Reduced |
| South Dakota Investment Council | 32,447 | $2.85M | 0.06% | −500−1.5% | Reduced |
| Bank of America Corp | 32,261 | $2.83M | 0.00% | +13,086+68.2% | Added |
| Amalgamated Bank | 31,925 | $2.80M | 0.02% | −2,777−8.0% | Reduced |
| Centiva Capital, LP | 31,602 | $2.77M | 0.14% | +29,847+1,700.7% | Added |
| Qube Research & Technologies Ltd | 31,383 | $2.75M | 0.01% | −7,792−19.9% | Reduced |
| Barclays PLC | 31,328 | $2.75M | 0.00% | −17,624−36.0% | Reduced |
| Symmetry Investments LP | 30,836 | $2.70M | 0.79% | +30,836 | New |
| Wells Fargo & Company | 30,550 | $2.68M | 0.00% | −2,712−8.2% | Reduced |
| PEAK6 Investments LLC | 29,720 | $2.61M | 0.13% | +24,795+503.5% | Added |
| Storebrand Asset Management AS | 29,580 | $2.59M | 0.01% | −3,770−11.3% | Reduced |
| Mutual of America Capital Management LLC | 28,923 | $2.54M | 0.03% | −6,382−18.1% | Reduced |
| Abn Amro Investment Solutions | 27,240 | $2.39M | 0.05% | +1,154+4.4% | Added |
| MetLife Investment Management | 27,199 | $2.38M | 0.02% | −3,858−12.4% | Reduced |
| Dynamic Technology Lab Private Ltd | 26,940 | $2.36M | 0.24% | +24,875+1,204.6% | Added |
| State of New Jersey Common Pension Fund D | 26,666 | $2.34M | 0.01% | 00.0% | Unchanged |
| Bank of Montreal | 22,945 | $2.32M | 0.00% | −80,019−77.7% | Reduced |
| Westmount Partners, LLC | 26,424 | $2.32M | 1.02% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 25,989 | $2.28M | 0.01% | +25,989 | New |
| Janus Henderson Group PLC | 24,893 | $2.18M | 0.00% | +20,188+429.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 24,798 | $2.17M | 0.00% | −2,135−7.9% | Reduced |
| Norges Bank | 22,940 | $2.01M | 0.00% | −414,060−94.8% | Reduced |
| Voya Investment Management LLC | 22,751 | $1.99M | 0.00% | −2,035−8.2% | Reduced |
| Two Sigma Advisers, LP | 22,700 | $1.99M | 0.01% | −163,100−87.8% | Reduced |
| Capital Fund Management S.A. | 22,592 | $1.98M | 0.03% | −1,694−7.0% | Reduced |
| Virtu Financial LLC | 22,373 | $1.96M | 0.20% | +22,373 | New |
| Campbell & CO Investment Adviser LLC | 22,279 | $1.95M | 0.23% | +22,279 | New |
| Brown Capital Management LLC | 22,123 | $1.94M | 0.03% | 00.0% | Unchanged |
| 13D Management LLC | 22,113 | $1.94M | 1.21% | −5,487−19.9% | Reduced |
| Envestnet Asset Management Inc | 21,913 | $1.92M | 0.00% | +5,695+35.1% | Added |
| Qsemble Capital Management, LP | 21,400 | $1.88M | 0.35% | +21,400 | New |
| FORA Capital, LLC | 21,055 | $1.85M | 0.16% | +17,132+436.7% | Added |
| Yousif Capital Management, LLC | 21,049 | $1.85M | 0.02% | −3,295−13.5% | Reduced |
| Deutsche Bank AG | 20,710 | $1.82M | 0.00% | −59,056−74.0% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 20,233 | $1.77M | 0.17% | +20,233 | New |
| Treasurer of the State of North Carolina | 18,959 | $1.66M | 0.01% | −1,800−8.7% | Reduced |
| Royal London Asset Management Ltd | 18,915 | $1.66M | 0.01% | +504+2.7% | Added |
| HRT Financial LP | 18,843 | $1.65M | 0.02% | +18,843 | New |
| Creative Planning | 18,286 | $1.60M | 0.00% | +3,581+24.4% | Added |
| Public Employees Retirement System of Ohio | 17,902 | $1.57M | 0.01% | −3,893−17.9% | Reduced |
| Brown Advisory Inc | 17,607 | $1.54M | 0.00% | −112−0.6% | Reduced |
| Teachers Retirement System of the State of Kentucky | 16,541 | $1.45M | 0.01% | +8,004+93.8% | Added |
| Jump Financial, LLC | 16,530 | $1.45M | 0.05% | +16,530 | New |
| Ensign Peak Advisors, Inc | 16,125 | $1.41M | 0.00% | 00.0% | Unchanged |
| Birchview Capital, LP | 15,280 | $1.34M | 1.14% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 14,919 | $1.31M | 0.00% | −3,537−19.2% | Reduced |
| Lockerman Financial Group, Inc. | 14,400 | $1.26M | 3.40% | 00.0% | Unchanged |
| Empower Advisory Group, LLC | 14,060 | $1.23M | 0.01% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 13,803 | $1.21M | 0.01% | +13,803 | New |
| Arizona State Retirement System | 12,773 | $1.12M | 0.01% | +571+4.7% | Added |
| SG Americas Securities, LLC | 12,714 | $1.11M | 0.01% | +2,995+30.8% | Added |
| Louisiana State Employees Retirement System | 12,600 | $1.10M | 0.03% | −1,600−11.3% | Reduced |
| Engineers Gate Manager LP | 12,491 | $1.10M | 0.04% | +11,164+841.3% | Added |
| Oregon Public Employees Retirement Fund | 12,448 | $1.09M | 0.02% | −9,086−42.2% | Reduced |
| Victory Capital Management Inc | 12,362 | $1.08M | 0.00% | −9,394−43.2% | Reduced |
| Carmignac Gestion | 12,270 | $1.08M | 0.02% | −33,008−72.9% | Reduced |
| Duality Advisers, LP | 12,157 | $1.07M | 0.13% | +12,157 | New |
| Susquehanna Fundamental Investments, LLC | 11,899 | $1.04M | 0.07% | −34,770−74.5% | Reduced |
| Cardinal Capital Management | 11,547 | $1.01M | 0.21% | +490+4.4% | Added |
| De Burlo Group Inc | 11,452 | $1.00M | 0.17% | −1,000−8.0% | Reduced |
| Paradigm Capital Management Inc | 11,353 | $995.4K | 0.06% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 11,340 | $994.3K | 0.05% | +9,237+439.2% | Added |
| Leonteq Securities AG | 11,309 | $991.6K | 0.10% | +10,323+1,047.0% | Added |
| Laurus Investment Counsel Inc. | 8,340 | $985.6K | 0.41% | 00.0% | Unchanged |
| HSBC Holdings PLC | 10,948 | $964.3K | 0.00% | −13,037−54.4% | Reduced |
| Schonfeld Strategic Advisors LLC | 10,793 | $946.3K | 0.01% | +10,793 | New |
| State of Michigan Retirement System | 10,596 | $929.1K | 0.01% | −1,400−11.7% | Reduced |
| KBC Group NV | 10,402 | $912.0K | 0.00% | −1,846−15.1% | Reduced |
| Ameritas Investment Partners, Inc. | 9,952 | $872.6K | 0.03% | −2,174−17.9% | Reduced |
| New Mexico Educational Retirement Board | 9,900 | $868.0K | 0.04% | 00.0% | Unchanged |
| Xponance, Inc. | 9,891 | $867.2K | 0.01% | −995−9.1% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 9,840 | $862.8K | 0.02% | −951−8.8% | Reduced |
| Weiss Multi-Strategy Advisers LLC | 9,400 | $824.0K | 0.02% | +9,400 | New |
| Eukles Asset Management | 9,320 | $817.2K | 0.43% | +66+0.7% | Added |
| Illinois Municipal Retirement Fund | 9,309 | $816.0K | 0.02% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,984 | $787.7K | 0.01% | −14,488−61.7% | Reduced |
| Handelsbanken Fonder AB | 8,830 | $774.0K | 0.00% | 00.0% | Unchanged |
| Axq Capital, LP | 8,600 | $754.0K | 0.27% | +8,600 | New |
| Two Sigma Investments, LP | 8,587 | $752.9K | 0.00% | −16,773−66.1% | Reduced |
| Peloton Wealth Strategists | 8,500 | $745.0K | 0.34% | −1,050−11.0% | Reduced |
| Linden Thomas Advisory Services, LLC | 8,356 | $732.7K | 0.16% | +1,799+27.4% | Added |
| State of Wisconsin Investment Board | 8,157 | $715.2K | 0.00% | −26,726−76.6% | Reduced |
| Exchange Traded Concepts, LLC | 8,125 | $712.4K | 0.02% | +1,298+19.0% | Added |
| Advisor Group Holdings, Inc. | 8,017 | $702.8K | 0.00% | +503+6.7% | Added |
| APG Asset Management N.V. | 7,611 | $667.3K | 0.00% | −32,602−81.1% | Reduced |
| Standard Life Aberdeen plc | 7,472 | $655.1K | 0.00% | −953−11.3% | Reduced |
| Utah Retirement Systems | 7,421 | $650.7K | 0.01% | −800−9.7% | Reduced |
| US Bancorp | 7,307 | $640.7K | 0.00% | +35+0.5% | Added |
| Janney Montgomery Scott LLC | 7,229 | $634.0K | 0.00% | −184−2.5% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,201 | $631.4K | 0.00% | −1,557−17.8% | Reduced |
| Echo Street Capital Management LLC | 7,151 | $627.0K | 0.01% | +5,202+266.9% | Added |
| Truist Financial Corp | 6,942 | $608.7K | 0.00% | +414+6.3% | Added |
| Tower Research Capital LLC (TRC) | 6,361 | $557.7K | 0.02% | +19+0.3% | Added |
| Amundi | 7,171 | $554.7K | 0.00% | −50,150−87.5% | Reduced |
| Navellier & Associates Inc | 6,310 | $553.3K | 0.09% | +6,310 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 6,243 | $547.4K | 0.00% | −17,609−73.8% | Reduced |
| Advisors Preferred, LLC | 6,150 | $539.4K | 0.18% | +6,150 | New |
| LPL Financial LLC | 6,137 | $538.1K | 0.00% | −13,589−68.9% | Reduced |
| Public Employees Retirement Association of Colorado | 5,875 | $515.0K | 0.00% | −334−5.4% | Reduced |