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 |
|---|---|---|---|---|---|
| Janney Capital Management LLC | 1,881 | $509.0K | 0.03% | +8+0.4% | Added |
| Quantinno Capital Management LP | 1,842 | $499.0K | 0.56% | 00.0% | Unchanged |
| Mitsubishi UFJ Asset Management (UK) Ltd. | 1,800 | $487.0K | 0.21% | −3,500−66.0% | Reduced |
| Oppenheimer & Co Inc | 1,787 | $484.0K | 0.01% | −120−6.3% | Reduced |
| Harvest Investment Services, LLC | 1,759 | $476.0K | 0.19% | +8+0.5% | Added |
| Equitable Trust Co | 1,721 | $466.0K | 0.03% | −110−6.0% | Reduced |
| Swiss Life Asset Management Ltd | 1,706 | $461.8K | 0.01% | +1,706 | New |
| World Asset Management Inc | 1,703 | $461.0K | 0.05% | −68−3.8% | Reduced |
| Vestcor Inc | 1,699 | $460.0K | 0.02% | −108−6.0% | Reduced |
| AE Wealth Management LLC | 1,694 | $459.0K | 0.00% | +166+10.9% | Added |
| EFG Asset Management (Americas) Corp. | 1,688 | $457.0K | 0.08% | +211+14.3% | Added |
| Silvercrest Asset Management Group LLC | 1,658 | $449.0K | 0.00% | +193+13.2% | Added |
| FORA Capital, LLC | 1,631 | $442.0K | 0.11% | +1,631 | New |
| Red Spruce Capital, LLC | 1,617 | $438.0K | 0.26% | +24+1.5% | Added |
| Wealthfront Advisers LLC | 1,605 | $434.0K | 0.00% | +380+31.0% | Added |
| Occudo Quantitative Strategies LP | 1,598 | $433.0K | 0.05% | −3,661−69.6% | Reduced |
| Cigna Investments Inc | 1,571 | $426.0K | 0.03% | 00.0% | Unchanged |
| Edgestream Partners, L.P. | 1,570 | $425.0K | 0.03% | +1,570 | New |
| GWM Advisors LLC | 1,556 | $421.0K | 0.01% | +68+4.6% | 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 |
| Keybank National Association | 1,492 | $404.0K | 0.00% | +11+0.7% | Added |
| Buckhead Capital Management LLC | 1,465 | $397.0K | 0.09% | 00.0% | Unchanged |
| CAPROCK Group, Inc. | 1,459 | $395.0K | 0.04% | 00.0% | Unchanged |
| Kestra Advisory Services, LLC | 1,441 | $390.0K | 0.00% | +125+9.5% | Added |
| IBM Retirement Fund | 1,421 | $385.0K | 0.03% | +11+0.8% | Added |
| Capital Analysts, LLC | 1,335 | $361.0K | 0.02% | 00.0% | Unchanged |
| Bowling Portfolio Management LLC | 1,311 | $355.0K | 0.08% | 00.0% | Unchanged |
| Conestoga Capital Advisors, LLC | 1,305 | $353.0K | 0.00% | +35+2.8% | Added |
| M&G Investment Management Ltd | 1,297 | $351.0K | 0.00% | +21+1.6% | Added |
| Gotham Asset Management, LLC | 1,291 | $349.0K | 0.01% | −534−29.3% | Reduced |
| First Heartland Consultants, Inc. | 1,282 | $347.0K | 0.05% | −153−10.7% | Reduced |
| Captrust Financial Advisors | 1,272 | $344.0K | 0.00% | −25−1.9% | Reduced |
| D. E. Shaw & Co., Inc. | 1,266 | $343.0K | 0.00% | +1,266 | New |
| Financial Advocates Investment Management | 1,260 | $341.0K | 0.02% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 1,222 | $331.0K | 0.07% | +1,222 | New |
| Wealthsource Partners, LLC | 1,212 | $328.0K | 0.03% | +1,212 | New |
| Federation des caisses Desjardins du Quebec | 1,204 | $325.6K | 0.00% | −20−1.6% | Reduced |
| First Citizens Bank & Trust Co | 1,196 | $324.0K | 0.02% | −6−0.5% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 1,165 | $315.0K | 0.02% | +88+8.2% | Added |
| Redpoint Investment Management Pty Ltd | 1,161 | $314.0K | 0.03% | 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 |
| Whittier Trust Co | 1,134 | $307.0K | 0.01% | 00.0% | Unchanged |
| Banco Bilbao Vizcaya Argentaria, S.A. | 1,131 | $306.0K | 0.00% | −242−17.6% | Reduced |
| Level Four Advisory Services, LLC | 1,121 | $303.0K | 0.03% | +1,121 | New |
| Advisor Partners LLC | 1,115 | $302.0K | 0.02% | −68−5.7% | Reduced |
| 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 |
| TownSquare Capital, LLC | 1,101 | $298.0K | 0.01% | +1,101 | New |
| Maverick Capital LtdSuperinvestorMaverick Capital | 1,048 | $284.0K | 0.00% | −3−0.3% | Reduced |
| 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 |
| 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 |
| Alexandria Capital, LLC | 1,000 | $271.0K | 0.03% | 00.0% | Unchanged |
| Sofos Investments, Inc. | 0 | $271.0K | 0.20% | 0 | Unchanged |
| Banque Cantonale Vaudoise | 1,000 | $270.0K | 0.01% | −1,300−56.5% | 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 |
| CIBC World Markets Inc. | 975 | $264.0K | 0.00% | −237−19.6% | Reduced |
| Advisory Services Network, LLC | 944 | $255.0K | 0.01% | +85+9.9% | Added |
| HBK Sorce Advisory LLC | 935 | $253.0K | 0.01% | +1+0.1% | Added |
| JustInvest LLC | 911 | $247.0K | 0.02% | +911 | New |
| Livforsakringsbolaget Skandia, Omsesidigt | 900 | $243.0K | 0.02% | 00.0% | Unchanged |
| Allstate Corp | 896 | $243.0K | 0.01% | 00.0% | Unchanged |
| Cascadia Advisory Services, LLC | 895 | $242.0K | 0.05% | +65+7.8% | Added |
| SeaCrest Wealth Management, LLC | 890 | $241.0K | 0.03% | 00.0% | Unchanged |
| Meridian Wealth Management, LLC | 885 | $240.0K | 0.03% | 00.0% | Unchanged |
| Martingale Asset Management L P | 882 | $240.0K | 0.00% | +882 | New |
| Windsor Group LTD | 880 | $238.0K | 0.05% | +880 | 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 |
| 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 |
| Northwestern Mutual Wealth Management Co | 832 | $226.0K | 0.00% | −287−25.6% | Reduced |
| Navellier & Associates Inc | 836 | $226.0K | 0.03% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 827 | $224.0K | 0.00% | −125−13.1% | Reduced |
| Azimuth Capital Management LLC | 800 | $217.0K | 0.01% | +800 | New |
| 6 Meridian | 799 | $216.0K | 0.02% | +799 | New |
| Terra Nova Asset Management LLC | 782 | $212.0K | 0.17% | +782 | New |
| West Family Investments, Inc. | 767 | $208.0K | 0.06% | +767 | New |
| Veritable, L.P. | 755 | $204.0K | 0.00% | +755 | New |
| Susquehanna International Group, LLP | 742 | $201.0K | 0.00% | −1,904−72.0% | Reduced |
| Signaturefd, LLC | 710 | $192.0K | 0.01% | +202+39.8% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 612 | $166.0K | 0.00% | −73−10.7% | Reduced |
| Alpha Paradigm Partners, LLC | 567 | $153.0K | 0.06% | +567 | New |
| HHM Wealth Advisors, LLC | 554 | $150.0K | 0.04% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 553 | $149.0K | 0.00% | −18−3.2% | Reduced |
| Assetmark, Inc | 505 | $137.0K | 0.00% | −5,647−91.8% | Reduced |
| Leonteq Securities AG | 502 | $135.9K | 0.01% | +102+25.5% | Added |
| Benjamin F. Edwards & Company, Inc. | 500 | $135.0K | 0.01% | 00.0% | Unchanged |
| Cribstone Capital Management, LLC | 500 | $135.0K | 0.08% | 00.0% | Unchanged |
| Koshinski Asset Management, Inc. | 495 | $134.0K | 0.01% | +495 | New |
| Loomis Sayles & Co L P | 401 | $109.0K | 0.00% | 00.0% | Unchanged |
| Atwood & Palmer Inc | 379 | $103.0K | 0.01% | 00.0% | Unchanged |
| BBVA USA | 345 | $93.0K | 0.01% | −187−35.2% | Reduced |
| West Oak Capital, LLC | 325 | $88.0K | 0.03% | +50+18.2% | Added |
| State of Wyoming | 316 | $86.0K | 0.06% | −92−22.5% | Reduced |
| Quadrant Capital Group LLC | 304 | $82.0K | 0.01% | +14+4.8% | Added |