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 |
|---|---|---|---|---|---|
| Victory Capital Management Inc | 12,362 | $1.08M | 0.00% | −9,394−43.2% | Reduced |
| Oregon Public Employees Retirement Fund | 12,448 | $1.09M | 0.02% | −9,086−42.2% | Reduced |
| Engineers Gate Manager LP | 12,491 | $1.10M | 0.04% | +11,164+841.3% | Added |
| Louisiana State Employees Retirement System | 12,600 | $1.10M | 0.03% | −1,600−11.3% | Reduced |
| SG Americas Securities, LLC | 12,714 | $1.11M | 0.01% | +2,995+30.8% | Added |
| Arizona State Retirement System | 12,773 | $1.12M | 0.01% | +571+4.7% | Added |
| Wolverine Trading, LLC | 13,803 | $1.21M | 0.01% | +13,803 | New |
| Empower Advisory Group, LLC | 14,060 | $1.23M | 0.01% | 00.0% | Unchanged |
| Lockerman Financial Group, Inc. | 14,400 | $1.26M | 3.40% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 14,919 | $1.31M | 0.00% | −3,537−19.2% | Reduced |
| Birchview Capital, LP | 15,280 | $1.34M | 1.14% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 16,125 | $1.41M | 0.00% | 00.0% | Unchanged |
| Jump Financial, LLC | 16,530 | $1.45M | 0.05% | +16,530 | New |
| Teachers Retirement System of the State of Kentucky | 16,541 | $1.45M | 0.01% | +8,004+93.8% | Added |
| Brown Advisory Inc | 17,607 | $1.54M | 0.00% | −112−0.6% | Reduced |
| Public Employees Retirement System of Ohio | 17,902 | $1.57M | 0.01% | −3,893−17.9% | Reduced |
| Creative Planning | 18,286 | $1.60M | 0.00% | +3,581+24.4% | Added |
| HRT Financial LP | 18,843 | $1.65M | 0.02% | +18,843 | New |
| Royal London Asset Management Ltd | 18,915 | $1.66M | 0.01% | +504+2.7% | Added |
| Treasurer of the State of North Carolina | 18,959 | $1.66M | 0.01% | −1,800−8.7% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 20,233 | $1.77M | 0.17% | +20,233 | New |
| Deutsche Bank AG | 20,710 | $1.82M | 0.00% | −59,056−74.0% | Reduced |
| Yousif Capital Management, LLC | 21,049 | $1.85M | 0.02% | −3,295−13.5% | Reduced |
| FORA Capital, LLC | 21,055 | $1.85M | 0.16% | +17,132+436.7% | Added |
| Qsemble Capital Management, LP | 21,400 | $1.88M | 0.35% | +21,400 | New |
| Envestnet Asset Management Inc | 21,913 | $1.92M | 0.00% | +5,695+35.1% | Added |
| 13D Management LLC | 22,113 | $1.94M | 1.21% | −5,487−19.9% | Reduced |
| Brown Capital Management LLC | 22,123 | $1.94M | 0.03% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 22,279 | $1.95M | 0.23% | +22,279 | New |
| Virtu Financial LLC | 22,373 | $1.96M | 0.20% | +22,373 | New |
| Capital Fund Management S.A. | 22,592 | $1.98M | 0.03% | −1,694−7.0% | Reduced |
| Two Sigma Advisers, LP | 22,700 | $1.99M | 0.01% | −163,100−87.8% | Reduced |
| Voya Investment Management LLC | 22,751 | $1.99M | 0.00% | −2,035−8.2% | Reduced |
| Norges Bank | 22,940 | $2.01M | 0.00% | −414,060−94.8% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 24,798 | $2.17M | 0.00% | −2,135−7.9% | Reduced |
| Janus Henderson Group PLC | 24,893 | $2.18M | 0.00% | +20,188+429.1% | Added |
| Assenagon Asset Management S.A. | 25,989 | $2.28M | 0.01% | +25,989 | New |
| Westmount Partners, LLC | 26,424 | $2.32M | 1.02% | 00.0% | Unchanged |
| Bank of Montreal | 22,945 | $2.32M | 0.00% | −80,019−77.7% | Reduced |
| State of New Jersey Common Pension Fund D | 26,666 | $2.34M | 0.01% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 26,940 | $2.36M | 0.24% | +24,875+1,204.6% | Added |
| MetLife Investment Management | 27,199 | $2.38M | 0.02% | −3,858−12.4% | Reduced |
| Abn Amro Investment Solutions | 27,240 | $2.39M | 0.05% | +1,154+4.4% | Added |
| Mutual of America Capital Management LLC | 28,923 | $2.54M | 0.03% | −6,382−18.1% | Reduced |
| Storebrand Asset Management AS | 29,580 | $2.59M | 0.01% | −3,770−11.3% | Reduced |
| PEAK6 Investments LLC | 29,720 | $2.61M | 0.13% | +24,795+503.5% | Added |
| Wells Fargo & Company | 30,550 | $2.68M | 0.00% | −2,712−8.2% | Reduced |
| Symmetry Investments LP | 30,836 | $2.70M | 0.79% | +30,836 | New |
| Barclays PLC | 31,328 | $2.75M | 0.00% | −17,624−36.0% | Reduced |
| Qube Research & Technologies Ltd | 31,383 | $2.75M | 0.01% | −7,792−19.9% | Reduced |
| Centiva Capital, LP | 31,602 | $2.77M | 0.14% | +29,847+1,700.7% | Added |
| Amalgamated Bank | 31,925 | $2.80M | 0.02% | −2,777−8.0% | Reduced |
| Bank of America Corp | 32,261 | $2.83M | 0.00% | +13,086+68.2% | Added |
| South Dakota Investment Council | 32,447 | $2.85M | 0.06% | −500−1.5% | Reduced |
| Great West Life Assurance Co | 32,519 | $2.85M | 0.01% | −1,226−3.6% | Reduced |
| Gabelli Funds LLC | 33,000 | $2.89M | 0.02% | 00.0% | Unchanged |
| Moran Wealth Management, LLC | 34,757 | $3.05M | 0.12% | +1,097+3.3% | Added |
| DekaBank Deutsche Girozentrale | 34,930 | $3.07M | 0.01% | +922+2.7% | Added |
| Point72 Middle East FZE | 35,912 | $3.15M | 0.19% | +35,912 | New |
| Royal Bank of Canada | 36,174 | $3.17M | 0.00% | −40,282−52.7% | Reduced |
| State of Tennessee, Treasury Department | 36,723 | $3.22M | 0.01% | +10,633+40.8% | Added |
| Texas Permanent School Fund | 37,623 | $3.30M | 0.03% | −5,131−12.0% | Reduced |
| RK Capital Management, LLC | 38,580 | $3.38M | 0.80% | −415−1.1% | Reduced |
| Prosight Management, LP | 40,000 | $3.51M | 1.11% | +40,000 | New |
| CenterBook Partners LP | 41,176 | $3.61M | 0.45% | +11,421+38.4% | Added |
| NS Partners Ltd | 41,517 | $3.64M | 0.20% | −104−0.2% | Reduced |
| Credit Suisse AG | 42,689 | $3.74M | 0.00% | +3,332+8.5% | Added |
| British Columbia Investment Management Corp | 47,000 | $4.12M | 0.04% | −4,033−7.9% | Reduced |
| State Board of Administration of Florida Retirement System | 47,206 | $4.14M | 0.01% | −6,727−12.5% | Reduced |
| Irenic Capital Management LP | 47,309 | $4.15M | 1.27% | +47,309 | New |
| UBS Group AG | 48,068 | $4.21M | 0.00% | −33,518−41.1% | Reduced |
| California State Teachers Retirement System | 49,281 | $4.32M | 0.01% | −23,462−32.3% | Reduced |
| Simplex Trading, LLC | 50,689 | $4.44M | 0.16% | +46,724+1,178.4% | Added |
| Logan Capital Management Inc | 51,288 | $4.50M | 0.23% | −242−0.5% | Reduced |
| Bryn Mawr Trust Co | 52,307 | $4.59M | 0.20% | −326−0.6% | Reduced |
| New York State Common Retirement Fund | 52,818 | $4.63M | 0.01% | −10,956−17.2% | Reduced |
| New York State Teachers Retirement System | 53,048 | $4.65M | 0.01% | −6,407−10.8% | Reduced |
| Bridgewater Associates, LP | 53,168 | $4.66M | 0.03% | −2,511−4.5% | Reduced |
| Citigroup Inc | 53,583 | $4.70M | 0.01% | −11,324−17.4% | Reduced |
| Twinbeech Capital LP | 54,361 | $4.77M | 0.09% | +54,361 | New |
| Bell Asset Management Ltd | 54,853 | $4.81M | 0.79% | +14,278+35.2% | Added |
| Manufacturers Life Insurance Company, The | 55,737 | $4.89M | 0.00% | +19,400+53.4% | Added |
| Alliancebernstein L.P. | 62,032 | $5.44M | 0.00% | −7,611−10.9% | Reduced |
| American International Group, Inc. | 62,885 | $5.51M | 0.04% | −10,805−14.7% | Reduced |
| Coronation Fund Managers Ltd. | 66,966 | $5.87M | 0.18% | +66,966 | New |
| Voloridge Investment Management, LLC | 67,795 | $5.94M | 0.03% | +67,795 | New |
| Woodline Partners LP | 70,779 | $6.21M | 0.07% | +70,779 | New |
| TD Asset Management Inc | 71,430 | $6.26M | 0.01% | +53,676+302.3% | Added |
| Boussard & Gavaudan Investment Management LLP | 70,723 | $6.33M | 0.74% | +70,723 | New |
| Ameriprise Financial Inc | 74,054 | $6.49M | 0.00% | −30,936−29.5% | Reduced |
| California Public Employees Retirement System | 83,295 | $7.30M | 0.01% | −9,576−10.3% | Reduced |
| Gamco Investors, Inc. Et Al | 84,500 | $7.41M | 0.09% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 84,938 | $7.45M | 0.00% | +16,996+25.0% | Added |
| Cubist Systematic Strategies, LLC | 89,923 | $7.88M | 0.10% | +89,523+22,380.8% | Added |
| Baillie Gifford & Co | 91,229 | $8.00M | 0.01% | −3,920−4.1% | Reduced |
| JPMorgan Chase & Co | 91,875 | $8.06M | 0.00% | −143,975−61.0% | Reduced |
| Nuveen Asset Management, LLC | 94,213 | $8.26M | 0.00% | −33,803−26.4% | Reduced |
| Comerica Bank | 96,414 | $8.45M | 0.04% | +96,414 | New |
| Swiss National Bank | 98,600 | $8.65M | 0.01% | −62,200−38.7% | Reduced |
| Invesco Ltd. | 99,962 | $8.76M | 0.00% | +6,922+7.4% | Added |