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 |
|---|---|---|---|---|---|
| American Century Companies Inc | 10,671 | $1.34M | 0.00% | +1,671+18.6% | Added |
| Exchange Traded Concepts, LLC | 10,688 | $1.35M | 0.03% | −296−2.7% | Reduced |
| State of Michigan Retirement System | 10,696 | $1.35M | 0.01% | −200−1.8% | Reduced |
| Engineers Gate Manager LP | 11,074 | $1.39M | 0.03% | +11,074 | New |
| Quantitative Investment Management, LLC | 11,134 | $1.40M | 0.15% | +11,134 | New |
| Handelsbanken Fonder AB | 11,230 | $1.41M | 0.01% | +1,800+19.1% | Added |
| BNP Paribas Arbitrage, SA | 11,320 | $1.43M | 0.00% | −45,934−80.2% | Reduced |
| Paradigm Capital Management Inc | 11,353 | $1.43M | 0.07% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 11,670 | $1.47M | 0.01% | +11,670 | New |
| Gsa Capital Partners LLP | 12,208 | $1.54M | 0.11% | +12,208 | New |
| Arizona State Retirement System | 12,591 | $1.59M | 0.01% | +247+2.0% | Added |
| Louisiana State Employees Retirement System | 12,600 | $1.59M | 0.03% | −200−1.6% | Reduced |
| Fox Run Management, L.L.C. | 13,068 | $1.65M | 0.31% | +13,068 | New |
| Jump Financial, LLC | 13,295 | $1.67M | 0.03% | +13,295 | New |
| NEOS Investment Management LLC | 13,489 | $1.70M | 0.07% | +4,669+52.9% | Added |
| Advisors Asset Management, Inc. | 13,715 | $1.73M | 0.03% | +4,706+52.2% | Added |
| Algert Global LLC | 13,879 | $1.75M | 0.06% | +13,879 | New |
| Voya Investment Management LLC | 13,949 | $1.76M | 0.00% | −4,297−23.6% | Reduced |
| Empower Advisory Group, LLC | 14,060 | $1.77M | 0.01% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 14,161 | $1.78M | 0.00% | 00.0% | Unchanged |
| Lockerman Financial Group, Inc. | 14,400 | $1.81M | 3.29% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 14,624 | $1.84M | 0.00% | +14,624 | New |
| Tower Research Capital LLC (TRC) | 14,768 | $1.86M | 0.03% | +13,798+1,422.5% | Added |
| Birchview Capital, LP | 15,280 | $1.92M | 1.78% | 00.0% | Unchanged |
| Cardinal Capital Management | 15,440 | $1.94M | 0.33% | +676+4.6% | Added |
| Creative Planning | 15,616 | $1.97M | 0.00% | −1,080−6.5% | Reduced |
| Barclays PLC | 15,820 | $1.99M | 0.00% | −50,220−76.0% | Reduced |
| Teachers Retirement System of the State of Kentucky | 15,841 | $2.00M | 0.02% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 16,335 | $2.06M | 0.02% | +16,335 | New |
| State of New Jersey Common Pension Fund D | 16,542 | $2.08M | 0.01% | −10,124−38.0% | Reduced |
| Public Employees Retirement System of Ohio | 16,746 | $2.11M | 0.01% | −149−0.9% | Reduced |
| Brown Advisory Inc | 17,571 | $2.21M | 0.00% | 00.0% | Unchanged |
| Cramer Rosenthal McGlynn LLC | 18,081 | $2.28M | 0.13% | +18,081 | New |
| State of Wisconsin Investment Board | 18,457 | $2.32M | 0.01% | −1,986−9.7% | Reduced |
| Treasurer of the State of North Carolina | 18,635 | $2.35M | 0.01% | −644−3.3% | Reduced |
| Yousif Capital Management, LLC | 19,178 | $2.42M | 0.03% | −1,389−6.8% | Reduced |
| Abn Amro Investment Solutions | 19,439 | $2.45M | 0.04% | −217−1.1% | Reduced |
| State of Tennessee, Treasury Department | 19,450 | $2.45M | 0.01% | −5,550−22.2% | Reduced |
| Exome Asset Management LLC | 19,800 | $2.49M | 2.22% | +19,800 | New |
| Sofinnova Investments, Inc. | 20,161 | $2.54M | 0.16% | +161+0.8% | Added |
| Simplify Asset Management Inc. | 21,670 | $2.73M | 0.24% | +11,838+120.4% | Added |
| Janus Henderson Group PLC | 21,800 | $2.75M | 0.00% | −230−1.0% | Reduced |
| Envestnet Asset Management Inc | 22,303 | $2.81M | 0.00% | −111−0.5% | Reduced |
| Susquehanna International Group, LLP | 22,744 | $2.86M | 0.00% | +7,424+48.5% | Added |
| Amalgamated Bank | 22,766 | $2.87M | 0.02% | −1,840−7.5% | Reduced |
| HRT Financial LP | 23,365 | $2.94M | 0.02% | +23,365 | New |
| Capital Fund Management S.A. | 23,539 | $2.96M | 0.03% | +7,232+44.3% | Added |
| SEI Investments Co | 23,594 | $2.97M | 0.00% | −72,048−75.3% | Reduced |
| Westmount Partners, LLC | 25,991 | $3.03M | 1.00% | −433−1.6% | Reduced |
| Picton Mahoney Asset Management | 24,050 | $3.03M | 0.13% | −37,940−61.2% | Reduced |
| MetLife Investment Management | 24,482 | $3.08M | 0.02% | −1,662−6.4% | Reduced |
| Roubaix Capital, LLC | 24,839 | $3.13M | 1.98% | +24,839 | New |
| Pura Vida Investments, LLC | 25,000 | $3.15M | 3.81% | +25,000 | New |
| Point72 Hong Kong Ltd | 25,276 | $3.18M | 0.19% | +25,276 | New |
| CenterBook Partners LP | 25,293 | $3.19M | 0.20% | −16,020−38.8% | Reduced |
| Mutual of America Capital Management LLC | 25,532 | $3.22M | 0.04% | −915−3.5% | Reduced |
| Brown Capital Management LLC | 26,811 | $3.38M | 0.07% | −33−0.1% | Reduced |
| Royal Bank of Canada | 26,841 | $3.38M | 0.00% | +295+1.1% | Added |
| Zacks Investment Management | 26,854 | $3.38M | 0.04% | +1,766+7.0% | Added |
| Boothbay Fund Management, LLC | 27,391 | $3.45M | 0.11% | +25,648+1,471.5% | Added |
| Great West Life Assurance Co | 27,414 | $3.45M | 0.01% | +1,968+7.7% | Added |
| HSBC Holdings PLC | 27,609 | $3.51M | 0.00% | +21,887+382.5% | Added |
| Storebrand Asset Management AS | 28,018 | $3.53M | 0.01% | −174−0.6% | Reduced |
| Campbell & CO Investment Adviser LLC | 28,750 | $3.62M | 0.31% | +25,854+892.7% | Added |
| Jane Street Group, LLC | 29,603 | $3.73M | 0.00% | +5,239+21.5% | Added |
| South Dakota Investment Council | 30,611 | $3.85M | 0.08% | −36−0.1% | Reduced |
| APG Asset Management N.V. | 33,287 | $3.91M | 0.01% | −3,382−9.2% | Reduced |
| PEAK6 Investments LLC | 32,342 | $4.07M | 0.19% | −6,416−16.6% | Reduced |
| Gabelli Funds LLC | 33,000 | $4.16M | 0.03% | 00.0% | Unchanged |
| TD Asset Management Inc | 33,864 | $4.26M | 0.00% | −366−1.1% | Reduced |
| Manufacturers Life Insurance Company, The | 37,735 | $4.75M | 0.00% | −542−1.4% | Reduced |
| New York State Common Retirement Fund | 37,742 | $4.75M | 0.01% | +367+1.0% | Added |
| LMR Partners LLP | 40,354 | $5.08M | 0.11% | +40,354 | New |
| National Bank of Canada | 44,825 | $5.22M | 0.01% | +44,825 | New |
| NS Partners Ltd | 42,051 | $5.30M | 0.24% | +166+0.4% | Added |
| State Board of Administration of Florida Retirement System | 42,901 | $5.40M | 0.01% | −11,938−21.8% | Reduced |
| California State Teachers Retirement System | 43,761 | $5.51M | 0.01% | −1,032−2.3% | Reduced |
| UBS Group AG | 43,861 | $5.52M | 0.00% | +109+0.2% | Added |
| Citigroup Inc | 44,720 | $5.63M | 0.01% | −11,203−20.0% | Reduced |
| Norges Bank | 48,695 | $6.13M | 0.00% | +14,288+41.5% | Added |
| New York State Teachers Retirement System | 49,048 | $6.18M | 0.01% | −1,700−3.3% | Reduced |
| Bryn Mawr Trust Co | 49,289 | $6.21M | 0.24% | −791−1.6% | Reduced |
| Wells Fargo & Company | 49,948 | $6.29M | 0.00% | −17,416−25.9% | Reduced |
| Assenagon Asset Management S.A. | 50,740 | $6.39M | 0.02% | +43,918+643.8% | Added |
| Logan Capital Management Inc | 51,045 | $6.43M | 0.28% | −68−0.1% | Reduced |
| Montanaro Asset Management Ltd | 53,700 | $6.76M | 1.26% | −53,400−49.9% | Reduced |
| Corebridge Financial, Inc. | 56,661 | $7.14M | 0.04% | +56,661 | New |
| Alliancebernstein L.P. | 61,915 | $7.80M | 0.00% | +860+1.4% | Added |
| Price T Rowe Associates Inc | 68,289 | $8.60M | 0.00% | −3,259−4.6% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 71,789 | $9.04M | 0.37% | −940−1.3% | Reduced |
| California Public Employees Retirement System | 74,713 | $9.41M | 0.01% | +13,098+21.3% | Added |
| FIL Ltd | 76,147 | $9.59M | 0.01% | +2,960+4.0% | Added |
| First Trust Advisors LP | 79,405 | $10.0M | 0.01% | +16,879+27.0% | Added |
| Gotham Asset Management, LLC | 80,759 | $10.2M | 0.13% | +3,661+4.7% | Added |
| Invesco Ltd. | 83,051 | $10.5M | 0.00% | +4,011+5.1% | Added |
| Gamco Investors, Inc. Et Al | 84,500 | $10.6M | 0.12% | 00.0% | Unchanged |
| Erste Asset Management GmbH | 85,000 | $10.7M | 0.14% | −30,000−26.1% | Reduced |
| Swiss National Bank | 88,500 | $11.1M | 0.01% | −100−0.1% | Reduced |
| Ameriprise Financial Inc | 91,788 | $11.6M | 0.00% | +12,907+16.4% | Added |
| Legal & General Group Plc | 93,103 | $11.7M | 0.00% | −6,670−6.7% | Reduced |