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 |
|---|---|---|---|---|---|
| B. Metzler seel. Sohn & Co. Holding AG | 854 | $231.0K | 0.00% | 00.0% | Unchanged |
| Bridgefront Capital, LLC | 855 | $231.0K | 0.24% | +855 | New |
| YHB Investment Advisors, Inc. | 863 | $234.0K | 0.02% | 00.0% | Unchanged |
| Resources Investment Advisors, LLC. | 866 | $234.0K | 0.01% | +26+3.1% | Added |
| Windsor Group LTD | 880 | $238.0K | 0.05% | +880 | New |
| Meridian Wealth Management, LLC | 885 | $240.0K | 0.03% | 00.0% | Unchanged |
| Martingale Asset Management L P | 882 | $240.0K | 0.00% | +882 | New |
| SeaCrest Wealth Management, LLC | 890 | $241.0K | 0.03% | 00.0% | Unchanged |
| Cascadia Advisory Services, LLC | 895 | $242.0K | 0.05% | +65+7.8% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 900 | $243.0K | 0.02% | 00.0% | Unchanged |
| Allstate Corp | 896 | $243.0K | 0.01% | 00.0% | Unchanged |
| JustInvest LLC | 911 | $247.0K | 0.02% | +911 | New |
| HBK Sorce Advisory LLC | 935 | $253.0K | 0.01% | +1+0.1% | Added |
| Advisory Services Network, LLC | 944 | $255.0K | 0.01% | +85+9.9% | Added |
| CIBC World Markets Inc. | 975 | $264.0K | 0.00% | −237−19.6% | Reduced |
| Harbor Investment Advisory, LLC | 995 | $269.0K | 0.04% | 00.0% | Unchanged |
| Spire Wealth Management | 998 | $269.0K | 0.01% | +142+16.6% | Added |
| Banque Cantonale Vaudoise | 1,000 | $270.0K | 0.01% | −1,300−56.5% | Reduced |
| Alexandria Capital, LLC | 1,000 | $271.0K | 0.03% | 00.0% | Unchanged |
| Sofos Investments, Inc. | 0 | $271.0K | 0.20% | 0 | Unchanged |
| Patten Group, Inc. | 1,007 | $273.0K | 0.08% | −190−15.9% | Reduced |
| Hills Bank & Trust Co | 1,007 | $273.0K | 0.04% | 00.0% | Unchanged |
| Laurel Wealth Advisors, Inc. | 1,020 | $276.0K | 0.05% | 00.0% | Unchanged |
| Bessemer Group Inc | 1,020 | $276.0K | 0.00% | +25+2.5% | Added |
| Maverick Capital LtdSuperinvestorMaverick Capital | 1,048 | $284.0K | 0.00% | −3−0.3% | Reduced |
| TownSquare Capital, LLC | 1,101 | $298.0K | 0.01% | +1,101 | New |
| Coldstream Capital Management Inc | 1,267 | $299.0K | 0.01% | −23−1.8% | Reduced |
| Walleye Trading LLC | 1,105 | $299.0K | 0.01% | +470+74.0% | Added |
| Advisor Partners LLC | 1,115 | $302.0K | 0.02% | −68−5.7% | Reduced |
| Level Four Advisory Services, LLC | 1,121 | $303.0K | 0.03% | +1,121 | New |
| Banco Bilbao Vizcaya Argentaria, S.A. | 1,131 | $306.0K | 0.00% | −242−17.6% | Reduced |
| Whittier Trust Co | 1,134 | $307.0K | 0.01% | 00.0% | Unchanged |
| Regal Investment Advisors LLC | 1,151 | $312.0K | 0.03% | +29+2.6% | Added |
| Echo Street Capital Management LLC | 1,151 | $312.0K | 0.00% | +1,151 | New |
| Redpoint Investment Management Pty Ltd | 1,161 | $314.0K | 0.03% | 00.0% | Unchanged |
| Hennion & Walsh Asset Management, Inc. | 1,165 | $315.0K | 0.02% | +88+8.2% | Added |
| First Citizens Bank & Trust Co | 1,196 | $324.0K | 0.02% | −6−0.5% | Reduced |
| Federation des caisses Desjardins du Quebec | 1,204 | $325.6K | 0.00% | −20−1.6% | Reduced |
| Wealthsource Partners, LLC | 1,212 | $328.0K | 0.03% | +1,212 | New |
| Two Sigma Securities, LLC | 1,222 | $331.0K | 0.07% | +1,222 | New |
| Financial Advocates Investment Management | 1,260 | $341.0K | 0.02% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 1,266 | $343.0K | 0.00% | +1,266 | New |
| Captrust Financial Advisors | 1,272 | $344.0K | 0.00% | −25−1.9% | Reduced |
| First Heartland Consultants, Inc. | 1,282 | $347.0K | 0.05% | −153−10.7% | Reduced |
| Gotham Asset Management, LLC | 1,291 | $349.0K | 0.01% | −534−29.3% | Reduced |
| M&G Investment Management Ltd | 1,297 | $351.0K | 0.00% | +21+1.6% | Added |
| Conestoga Capital Advisors, LLC | 1,305 | $353.0K | 0.00% | +35+2.8% | Added |
| Bowling Portfolio Management LLC | 1,311 | $355.0K | 0.08% | 00.0% | Unchanged |
| Capital Analysts, LLC | 1,335 | $361.0K | 0.02% | 00.0% | Unchanged |
| IBM Retirement Fund | 1,421 | $385.0K | 0.03% | +11+0.8% | Added |
| Kestra Advisory Services, LLC | 1,441 | $390.0K | 0.00% | +125+9.5% | Added |
| CAPROCK Group, Inc. | 1,459 | $395.0K | 0.04% | 00.0% | Unchanged |
| Buckhead Capital Management LLC | 1,465 | $397.0K | 0.09% | 00.0% | Unchanged |
| Keybank National Association | 1,492 | $404.0K | 0.00% | +11+0.7% | Added |
| Bluestein R H & Co | 1,500 | $406.0K | 0.02% | −300−16.7% | Reduced |
| Tocqueville Asset Management L.P. | 1,500 | $406.0K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 1,556 | $421.0K | 0.01% | +68+4.6% | Added |
| Edgestream Partners, L.P. | 1,570 | $425.0K | 0.03% | +1,570 | New |
| Cigna Investments Inc | 1,571 | $426.0K | 0.03% | 00.0% | Unchanged |
| Occudo Quantitative Strategies LP | 1,598 | $433.0K | 0.05% | −3,661−69.6% | Reduced |
| Wealthfront Advisers LLC | 1,605 | $434.0K | 0.00% | +380+31.0% | Added |
| Red Spruce Capital, LLC | 1,617 | $438.0K | 0.26% | +24+1.5% | Added |
| FORA Capital, LLC | 1,631 | $442.0K | 0.11% | +1,631 | New |
| Silvercrest Asset Management Group LLC | 1,658 | $449.0K | 0.00% | +193+13.2% | Added |
| EFG Asset Management (Americas) Corp. | 1,688 | $457.0K | 0.08% | +211+14.3% | Added |
| AE Wealth Management LLC | 1,694 | $459.0K | 0.00% | +166+10.9% | Added |
| Vestcor Inc | 1,699 | $460.0K | 0.02% | −108−6.0% | Reduced |
| World Asset Management Inc | 1,703 | $461.0K | 0.05% | −68−3.8% | Reduced |
| Swiss Life Asset Management Ltd | 1,706 | $461.8K | 0.01% | +1,706 | New |
| Equitable Trust Co | 1,721 | $466.0K | 0.03% | −110−6.0% | Reduced |
| Harvest Investment Services, LLC | 1,759 | $476.0K | 0.19% | +8+0.5% | Added |
| Oppenheimer & Co Inc | 1,787 | $484.0K | 0.01% | −120−6.3% | Reduced |
| Mitsubishi UFJ Asset Management (UK) Ltd. | 1,800 | $487.0K | 0.21% | −3,500−66.0% | Reduced |
| Quantinno Capital Management LP | 1,842 | $499.0K | 0.56% | 00.0% | Unchanged |
| Janney Capital Management LLC | 1,881 | $509.0K | 0.03% | +8+0.4% | Added |
| Nisa Investment Advisors, LLC | 1,926 | $521.0K | 0.00% | −1,891−49.5% | Reduced |
| Yorktown Management & Research Co Inc | 1,950 | $528.0K | 0.40% | +1,950 | New |
| Quantamental Technologies LLC | 2,067 | $560.0K | 0.37% | +2,067 | New |
| Independent Advisor Alliance | 2,074 | $562.0K | 0.03% | −200−8.8% | Reduced |
| Symmetry Partners, LLC | 2,178 | $585.0K | 0.04% | 00.0% | Unchanged |
| M&T Bank Corp | 2,167 | $588.0K | 0.00% | −150−6.5% | Reduced |
| BancorpSouth Bank | 2,172 | $588.0K | 0.08% | 00.0% | Unchanged |
| CIBC Asset Management Inc | 2,249 | $609.0K | 0.00% | −8,194−78.5% | Reduced |
| STRS Ohio | 2,342 | $634.0K | 0.00% | −578−19.8% | Reduced |
| Sigma Planning Corp | 2,377 | $643.0K | 0.02% | +2,377 | New |
| Eqis Capital Management, Inc. | 2,386 | $646.0K | 0.05% | +1,303+120.3% | Added |
| Fosun International Ltd | 2,400 | $649.0K | 0.03% | 00.0% | Unchanged |
| KCM Investment Advisors LLC | 2,435 | $659.0K | 0.03% | 00.0% | Unchanged |
| Achmea Investment Management B.V. | 2,442 | $661.0K | 0.02% | +2,442 | New |
| Moneta Group Investment Advisors LLC | 2,453 | $664.0K | 0.03% | +44+1.8% | Added |
| Fort, L.P. | 2,459 | $666.0K | 0.22% | −1,686−40.7% | Reduced |
| Intrust Bank NA | 2,465 | $667.0K | 0.09% | −20−0.8% | Reduced |
| Qtron Investments LLC | 2,466 | $668.0K | 0.18% | +2,466 | New |
| Legal Advantage Investments, Inc. | 2,475 | $670.0K | 0.45% | 00.0% | Unchanged |
| Nordea Investment Management AB | 2,479 | $675.0K | 0.00% | 00.0% | Unchanged |
| Raymond James Trust N.A. | 2,513 | $680.0K | 0.02% | +31+1.2% | Added |
| Panagora Asset Management Inc | 2,611 | $707.0K | 0.00% | −43−1.6% | Reduced |
| Daiwa Securities Group Inc. | 2,613 | $707.0K | 0.00% | +120+4.8% | Added |
| Robeco Institutional Asset Management B.V. | 2,658 | $720.0K | 0.00% | −126−4.5% | Reduced |
| Northwest & Ethical Investments L.P. | 2,734 | $740.1K | 0.02% | −7,231−72.6% | Reduced |