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 2021
Institutional positions in Masimo Corp as of Sep 30, 2021. 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
- 475
- +20 vs. Q2 2021
- Shares held
- 46.3M
- +529.7K (+1.2%) vs. Q2 2021
- Total value
- $12.5B
- +$1.43B (+12.9%) vs. Q2 2021
- New holders
- 56
- 148 more added
- Sold out
- 36
- 175 more reduced
4 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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 2021
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Forte Capital LLC | 41,499 | $11.2M | 1.52% | +3,056+7.9% | Added |
| Thrivent Financial for Lutherans | 41,376 | $11.2M | 0.02% | +974+2.4% | Added |
| Eaton Vance Management | 41,846 | $11.0M | 0.02% | −333−0.8% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 40,000 | $10.8M | 0.67% | 00.0% | Unchanged |
| Brewin Dolphin Wealth Management Ltd | 39,780 | $10.8M | 1.23% | +4,224+11.9% | Added |
| SEI Investments Co | 39,082 | $10.6M | 0.02% | −2,434−5.9% | Reduced |
| State of Tennessee, Treasury Department | 38,823 | $10.5M | 0.04% | +16,133+71.1% | Added |
| Public Employees Retirement System of Ohio | 38,077 | $10.3M | 0.04% | +9,016+31.0% | Added |
| Texas Permanent School Fund | 37,469 | $10.1M | 0.12% | −239−0.6% | Reduced |
| Paradigm Capital Management Inc | 37,153 | $10.1M | 0.52% | +1,600+4.5% | Added |
| Marshall Wace North America L.P. | 36,048 | $9.76M | 0.04% | +32,292+859.7% | Added |
| Amalgamated Bank | 36,008 | $9.75M | 0.08% | −3,751−9.4% | Reduced |
| Handelsinvest Investeringsforvaltning | 36,000 | $9.75M | 1.06% | +6,000+20.0% | Added |
| Asset Management One Co.,Ltd. | 35,784 | $9.69M | 0.04% | +13,399+59.9% | Added |
| Envestnet Asset Management Inc | 35,078 | $9.50M | 0.01% | +2,205+6.7% | Added |
| Gabelli Funds LLC | 35,000 | $9.47M | 0.06% | −1,000−2.8% | Reduced |
| NS Partners Ltd | 34,057 | $9.22M | 0.47% | +189+0.6% | Added |
| Shell Asset Management Co | 33,939 | $9.19M | 0.21% | −1,900−5.3% | Reduced |
| Banco Santander, S.A. | 33,733 | $9.13M | 0.05% | +5,500+19.5% | Added |
| Nomura Asset Management Co Ltd | 32,310 | $8.75M | 0.05% | −1,149−3.4% | Reduced |
| State of Alaska, Department of Revenue | 31,837 | $8.62M | 0.09% | −2,240−6.6% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 30,632 | $8.29M | 0.11% | +4,000+15.0% | Added |
| State of New Jersey Common Pension Fund D | 29,647 | $8.03M | 0.02% | +514+1.8% | Added |
| LPL Financial LLC | 29,006 | $7.85M | 0.01% | +2,152+8.0% | Added |
| HSBC Holdings PLC | 28,279 | $7.67M | 0.01% | −13,498−32.3% | Reduced |
| Voya Investment Management LLC | 28,056 | $7.59M | 0.02% | −694−2.4% | Reduced |
| Price T Rowe Associates Inc | 27,953 | $7.57M | 0.00% | +3,085+12.4% | Added |
| Assenagon Asset Management S.A. | 27,275 | $7.38M | 0.03% | +27,275 | New |
| State of Wisconsin Investment Board | 27,102 | $7.34M | 0.02% | +1,410+5.5% | Added |
| First Trust Advisors LP | 26,710 | $7.23M | 0.01% | +22,756+575.5% | Added |
| Millennium Management LLC | 24,992 | $6.77M | 0.01% | +14,541+139.1% | Added |
| Railway Pension Investments Ltd | 24,500 | $6.63M | 0.05% | 00.0% | Unchanged |
| Comerica Bank | 23,271 | $6.59M | 0.04% | −4,740−16.9% | Reduced |
| MetLife Investment Management | 24,334 | $6.59M | 0.06% | −950−3.8% | Reduced |
| Ravenstone Capital Management Inc. | 24,300 | $6.58M | 4.86% | +3,825+18.7% | Added |
| Caisse de Depot Et Placement du Quebec | 23,952 | $6.48M | 0.01% | +19,100+393.7% | Added |
| Illinois Municipal Retirement Fund | 23,283 | $6.30M | 0.23% | 00.0% | Unchanged |
| Group One Trading, L.P. | 22,357 | $6.05M | 0.13% | +22,357 | New |
| Carmignac Gestion | 21,781 | $5.89M | 0.07% | +1,597+7.9% | Added |
| Aviva PLC | 21,510 | $5.82M | 0.03% | +5,717+36.2% | Added |
| McKinley Capital Management LLC /Delaware | 21,330 | $5.77M | 0.54% | 00.0% | Unchanged |
| Prudential Financial Inc | 21,096 | $5.71M | 0.01% | −4,547−17.7% | Reduced |
| Candriam Luxembourg S.C.A. | 21,090 | $5.71M | 0.04% | 00.0% | Unchanged |
| North Star Asset Management Inc | 21,011 | $5.69M | 0.31% | −157−0.7% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 20,243 | $5.48M | 0.03% | −811−3.9% | Reduced |
| KBC Group NV | 19,453 | $5.27M | 0.02% | −3,355−14.7% | Reduced |
| Brookfield Asset Management Inc. | 19,354 | $5.24M | 0.02% | +5,978+44.7% | Added |
| Treasurer of the State of North Carolina | 18,771 | $5.08M | 0.03% | +609+3.4% | Added |
| Russell Investments Group, Ltd. | 18,643 | $5.04M | 0.01% | −6,617−26.2% | Reduced |
| Federated Hermes, Inc. | 18,297 | $4.95M | 0.01% | −27−0.1% | Reduced |
| Citadel Advisors LLC | 18,255 | $4.94M | 0.01% | +5,437+42.4% | Added |
| PDT Partners, LLC | 18,000 | $4.87M | 0.35% | +18,000 | New |
| Pictet Asset Management SA | 17,920 | $4.85M | 0.01% | +17,920 | New |
| Mandatum Life Insurance Co Ltd | 17,279 | $4.68M | 0.87% | 00.0% | Unchanged |
| Personal Capital Advisors Corp | 17,155 | $4.64M | 0.02% | +134+0.8% | Added |
| Oregon Public Employees Retirement Fund | 16,899 | $4.58M | 0.05% | −444−2.6% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 16,734 | $4.53M | 0.05% | −123−0.7% | Reduced |
| Autus Asset Management, LLC | 16,732 | $4.53M | 0.50% | −60.0% | Reduced |
| Fred Alger Management, LLC | 16,572 | $4.49M | 0.01% | 00.0% | Unchanged |
| Brewin Dolphin Ltd | 15,940 | $4.32M | 0.18% | +1,025+6.9% | Added |
| Mackenzie Financial Corp | 14,860 | $4.02M | 0.01% | +7,728+108.4% | Added |
| Vontobel Holding Ltd. | 14,678 | $3.97M | 0.04% | −6,472−30.6% | Reduced |
| Arizona State Retirement System | 14,663 | $3.97M | 0.03% | −177−1.2% | Reduced |
| Advisors Asset Management, Inc. | 14,456 | $3.91M | 0.06% | −1,937−11.8% | Reduced |
| Ascent Wealth Partners, LLC | 14,427 | $3.91M | 0.75% | +23+0.2% | Added |
| Unigestion Holding SA | 14,175 | $3.83M | 0.16% | −2,344−14.2% | Reduced |
| Royal London Asset Management Ltd | 14,109 | $3.82M | 0.02% | 00.0% | Unchanged |
| De Burlo Group Inc | 13,752 | $3.72M | 0.60% | 00.0% | Unchanged |
| Security Asset Management | 13,730 | $3.72M | 1.50% | +171+1.3% | Added |
| Polar Capital Holdings Plc | 13,544 | $3.67M | 0.02% | −8,068−37.3% | Reduced |
| Ameritas Investment Partners, Inc. | 13,417 | $3.63M | 0.13% | −260−1.9% | Reduced |
| Employees Retirement System of Texas | 13,400 | $3.63M | 0.04% | 00.0% | Unchanged |
| Louisiana State Employees Retirement System | 12,900 | $3.49M | 0.08% | −200−1.5% | Reduced |
| Arcadia Investment Management Corp | 12,727 | $3.44M | 0.64% | +248+2.0% | Added |
| State of Michigan Retirement System | 12,666 | $3.43M | 0.02% | −100−0.8% | Reduced |
| Exchange Traded Concepts, LLC | 12,520 | $3.39M | 0.09% | −1,439−10.3% | Reduced |
| Baird Financial Group, Inc. | 11,831 | $3.20M | 0.01% | +1,564+15.2% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 11,800 | $3.19M | 0.03% | +1,400+13.5% | Added |
| Squarepoint Ops LLC | 11,604 | $3.14M | 0.02% | +11,604 | New |
| USS Investment Management Ltd | 11,595 | $3.14M | 0.03% | +11,595 | New |
| Mirae Asset Global Investments Co., Ltd. | 11,557 | $3.13M | 0.01% | +930+8.8% | Added |
| Janus Henderson Group PLC | 11,150 | $3.02M | 0.00% | −20,840−65.1% | Reduced |
| HighTower Advisors, LLC | 11,014 | $2.98M | 0.01% | +151+1.4% | Added |
| Metropolitan Life Insurance Co | 10,947 | $2.96M | 0.04% | −365−3.2% | Reduced |
| Andra AP-fonden | 10,900 | $2.95M | 0.06% | −300−2.7% | Reduced |
| Guggenheim Capital LLC | 10,595 | $2.87M | 0.02% | +716+7.2% | Added |
| New Mexico Educational Retirement Board | 10,500 | $2.84M | 0.10% | 00.0% | Unchanged |
| Susquehanna Fundamental Investments, LLC | 10,485 | $2.84M | 0.05% | +900+9.4% | Added |
| Gulf International Bank (UK) Ltd | 10,455 | $2.83M | 0.04% | 00.0% | Unchanged |
| Eukles Asset Management | 10,201 | $2.76M | 1.51% | +252+2.5% | Added |
| Seeyond | 10,183 | $2.76M | 0.27% | −1,249−10.9% | Reduced |
| Storebrand Asset Management AS | 10,033 | $2.72M | 0.01% | −1,696−14.5% | Reduced |
| Forsta Ap-Fonden | 10,000 | $2.71M | 0.03% | +10,000 | New |
| AMP Capital Investors Ltd | 9,910 | $2.68M | 0.01% | −836−7.8% | Reduced |
| Holocene Advisors, LP | 9,668 | $2.62M | 0.02% | −14,240−59.6% | Reduced |
| Xponance, Inc. | 9,403 | $2.54M | 0.05% | −247−2.6% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,391 | $2.54M | 0.01% | 00.0% | Unchanged |
| South Dakota Investment Council | 9,355 | $2.53M | 0.05% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 9,282 | $2.51M | 0.01% | +195+2.1% | Added |
| The PNC Financial Services Group, Inc. | 9,190 | $2.49M | 0.00% | −68−0.7% | Reduced |