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 2024
Institutional positions in Masimo Corp as of Sep 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
- 362
- +13 vs. Q2 2024
- Shares held
- 50.4M
- +10.3M (+25.6%) vs. Q2 2024
- Total value
- $6.72B
- +$1.66B (+32.8%) vs. Q2 2024
- New holders
- 61
- 110 more added
- Sold out
- 48
- 122 more reduced
3 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2024
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| MetLife Investment Management | 23,812 | $3.17M | 0.02% | −670−2.7% | Reduced |
| Janus Henderson Group PLC | 21,800 | $2.91M | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 21,313 | $2.84M | 0.02% | −1,453−6.4% | Reduced |
| Assenagon Asset Management S.A. | 21,263 | $2.83M | 0.01% | −29,477−58.1% | Reduced |
| BNP Paribas Arbitrage, SA | 19,982 | $2.66M | 0.00% | +8,662+76.5% | Added |
| Algert Global LLC | 19,139 | $2.55M | 0.07% | +5,260+37.9% | Added |
| Nordea Investment Management AB | 19,040 | $2.54M | 0.00% | +19,040 | New |
| Abn Amro Investment Solutions | 19,037 | $2.54M | 0.04% | −402−2.1% | Reduced |
| Treasurer of the State of North Carolina | 18,715 | $2.50M | 0.01% | +80+0.4% | Added |
| Cardinal Capital Management | 18,517 | $2.47M | 0.38% | +3,077+19.9% | Added |
| Storebrand Asset Management AS | 17,732 | $2.36M | 0.01% | −10,286−36.7% | Reduced |
| Brown Advisory Inc | 17,451 | $2.33M | 0.00% | −120−0.7% | Reduced |
| Teacher Retirement System of Texas | 17,435 | $2.33M | 0.01% | +13,784+377.5% | Added |
| XTX Topco Ltd | 17,157 | $2.29M | 0.17% | +17,157 | New |
| Yousif Capital Management, LLC | 16,737 | $2.23M | 0.02% | −2,441−12.7% | Reduced |
| State of New Jersey Common Pension Fund D | 16,736 | $2.23M | 0.01% | +194+1.2% | Added |
| AQR Capital Management LLC | 16,216 | $2.16M | 0.00% | +16,216 | New |
| Public Employees Retirement System of Ohio | 15,976 | $2.13M | 0.01% | −770−4.6% | Reduced |
| State of Tennessee, Treasury Department | 15,731 | $2.10M | 0.01% | −3,719−19.1% | Reduced |
| Brevan Howard Capital Management LP | 15,456 | $2.06M | 0.10% | +11,407+281.7% | Added |
| Teachers Retirement System of the State of Kentucky | 15,451 | $2.06M | 0.02% | −390−2.5% | Reduced |
| Birchview Capital, LP | 15,280 | $2.04M | 1.76% | 00.0% | Unchanged |
| Creative Planning | 14,700 | $1.96M | 0.00% | −916−5.9% | Reduced |
| NEOS Investment Management LLC | 14,610 | $1.95M | 0.06% | +1,121+8.3% | Added |
| Gluskin Sheff & Assoc Inc | 14,425 | $1.93M | 0.23% | +14,425 | New |
| Picton Mahoney Asset Management | 14,457 | $1.93M | 0.07% | −9,593−39.9% | Reduced |
| Natixis | 14,386 | $1.92M | 0.01% | −91,430−86.4% | Reduced |
| Advisors Asset Management, Inc. | 14,216 | $1.90M | 0.03% | +501+3.7% | Added |
| Ensign Peak Advisors, Inc | 14,161 | $1.89M | 0.00% | 00.0% | Unchanged |
| Empower Advisory Group, LLC | 14,066 | $1.88M | 0.01% | +60.0% | Added |
| Lockerman Financial Group, Inc. | 13,600 | $1.81M | 3.07% | −800−5.6% | Reduced |
| Royal Bank of Canada | 13,485 | $1.80M | 0.00% | −13,356−49.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 13,285 | $1.77M | 0.00% | −1,339−9.2% | Reduced |
| Handelsbanken Fonder AB | 13,230 | $1.76M | 0.01% | +2,000+17.8% | Added |
| Voya Investment Management LLC | 13,058 | $1.74M | 0.00% | −891−6.4% | Reduced |
| Arizona State Retirement System | 13,017 | $1.74M | 0.01% | +426+3.4% | Added |
| STRS Ohio | 12,788 | $1.71M | 0.01% | +12,788 | New |
| Exchange Traded Concepts, LLC | 12,550 | $1.67M | 0.04% | +1,862+17.4% | Added |
| Simplex Trading, LLC | 12,529 | $1.67M | 0.06% | +6,169+97.0% | Added |
| Louisiana State Employees Retirement System | 12,200 | $1.63M | 0.03% | −400−3.2% | Reduced |
| Paradigm Capital Management Inc | 11,353 | $1.51M | 0.07% | 00.0% | Unchanged |
| American Century Companies Inc | 11,285 | $1.50M | 0.00% | +614+5.8% | Added |
| Axq Capital, LP | 11,133 | $1.48M | 0.45% | +11,133 | New |
| Teza Capital Management LLC | 10,919 | $1.46M | 0.16% | +1,140+11.7% | Added |
| State of Michigan Retirement System | 10,496 | $1.40M | 0.01% | −200−1.9% | Reduced |
| Edgestream Partners, L.P. | 10,449 | $1.39M | 0.06% | +5,325+103.9% | Added |
| Thrivent Financial for Lutherans | 10,373 | $1.38M | 0.00% | −1,206,984−99.1% | Reduced |
| Shay Capital LLC | 10,150 | $1.35M | 0.40% | +10,150 | New |
| Engineers Gate Manager LP | 9,980 | $1.33M | 0.03% | −1,094−9.9% | Reduced |
| New Mexico Educational Retirement Board | 9,900 | $1.32M | 0.04% | 00.0% | Unchanged |
| Northwestern Mutual Investment Management Company, LLC | 9,796 | $1.31M | 0.03% | −156−1.6% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 9,733 | $1.30M | 0.01% | −151−1.5% | Reduced |
| Versor Investments LP | 9,591 | $1.28M | 0.20% | +4,313+81.7% | Added |
| Intech Investment Management LLC | 9,444 | $1.26M | 0.01% | −834−8.1% | Reduced |
| Illinois Municipal Retirement Fund | 9,309 | $1.24M | 0.02% | 00.0% | Unchanged |
| Woodline Partners LP | 9,300 | $1.24M | 0.01% | −176,690−95.0% | Reduced |
| Victory Capital Management Inc | 9,240 | $1.23M | 0.00% | −576−5.9% | Reduced |
| ClariVest Asset Management LLC | 9,609 | $1.21M | 0.12% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 9,059 | $1.21M | 0.04% | −426−4.5% | Reduced |
| Bank of Montreal | 9,064 | $1.21M | 0.00% | +3,335+58.2% | Added |
| Oregon Public Employees Retirement Fund | 8,966 | $1.20M | 0.02% | −300−3.2% | Reduced |
| Campbell & CO Investment Adviser LLC | 8,959 | $1.19M | 0.09% | −19,791−68.8% | Reduced |
| Raymond James Trust N.A. | 8,814 | $1.18M | 0.03% | +2,400+37.4% | Added |
| Schonfeld Strategic Advisors LLC | 8,791 | $1.17M | 0.01% | −2,879−24.7% | Reduced |
| De Burlo Group Inc | 8,752 | $1.17M | 0.14% | −1,100−11.2% | Reduced |
| Quantitative Investment Management, LLC | 8,640 | $1.15M | 0.11% | −2,494−22.4% | Reduced |
| Gsa Capital Partners LLP | 8,230 | $1.10M | 0.08% | −3,978−32.6% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,877 | $1.05M | 0.00% | 00.0% | Unchanged |
| Winton Group Ltd | 7,712 | $1.03M | 0.07% | +7,712 | New |
| Bridgewater Associates, LP | 7,617 | $1.02M | 0.01% | −2,845−27.2% | Reduced |
| Baird Financial Group, Inc. | 7,284 | $971.2K | 0.00% | +2,900+66.1% | Added |
| Advisor Group Holdings, Inc. | 7,280 | $970.6K | 0.00% | −429−5.6% | Reduced |
| Lombard Odier Asset Management (USA) Corp | 7,171 | $956.1K | 0.36% | +7,171 | New |
| Acadian Asset Management LLC | 7,169 | $953.0K | 0.00% | +7,169 | New |
| Eukles Asset Management | 7,004 | $933.8K | 0.37% | −295−4.0% | Reduced |
| Xponance, Inc. | 6,726 | $896.8K | 0.01% | −22−0.3% | Reduced |
| Prudential Financial Inc | 6,636 | $884.8K | 0.00% | +4,415+198.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 6,453 | $860.4K | 0.00% | −234−3.5% | Reduced |
| Pacer Advisors, Inc. | 6,452 | $860.2K | 0.00% | −230−3.4% | Reduced |
| Pictet Asset Management Holding SA | 5,784 | $771.2K | 0.00% | +383+7.1% | Added |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 5,731 | $764.1K | 0.03% | +812+16.5% | Added |
| Deutsche Bank AG | 5,691 | $758.8K | 0.00% | −22−0.4% | Reduced |
| Susquehanna International Group, LLP | 5,668 | $755.7K | 0.00% | −17,076−75.1% | Reduced |
| JustInvest LLC | 5,607 | $747.6K | 0.01% | +233+4.3% | Added |
| Pathstone Holdings, LLC | 5,572 | $742.9K | 0.00% | −106−1.9% | Reduced |
| First Trust Advisors LP | 5,376 | $716.8K | 0.00% | −74,029−93.2% | Reduced |
| State of Alaska, Department of Revenue | 5,139 | $685.0K | 0.01% | +345+7.2% | Added |
| Centiva Capital, LP | 5,087 | $678.3K | 0.03% | +5,087 | New |
| Public Employees Retirement Association of Colorado | 4,841 | $645.0K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 4,810 | $640.0K | 0.00% | −408−7.8% | Reduced |
| Brinker Capital Investments, LLC | 4,681 | $624.1K | 0.01% | −540−10.3% | Reduced |
| Orion Portfolio Solutions, LLC | 4,681 | $624.1K | 0.01% | −540−10.3% | Reduced |
| Allianz Asset Management GmbH | 4,557 | $607.6K | 0.00% | −2,150−32.1% | Reduced |
| Graham Capital Management, L.P. | 4,483 | $597.7K | 0.02% | +4,483 | New |
| Fred Alger Management, LLC | 4,459 | $594.5K | 0.00% | +4,459 | New |
| Brown Capital Management LLC | 4,404 | $587.2K | 0.01% | −22,407−83.6% | Reduced |
| US Bancorp | 4,370 | $582.7K | 0.00% | −101−2.3% | Reduced |
| Guggenheim Capital LLC | 4,347 | $579.6K | 0.00% | −152−3.4% | Reduced |
| Neuberger Berman Group LLC | 4,297 | $572.9K | 0.00% | −118−2.7% | Reduced |
| Steel Peak Wealth Management LLC | 4,274 | $569.9K | 0.03% | +4,274 | New |