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, Q1 2023
Institutional positions in Masimo Corp as of Mar 31, 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
- 428
- +31 vs. Q4 2022
- Shares held
- 45.0M
- +592.5K (+1.3%) vs. Q4 2022
- Total value
- $8.30B
- +$1.73B (+26.4%) vs. Q4 2022
- New holders
- 68
- 134 more added
- Sold out
- 37
- 143 more reduced
8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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, Q1 2023
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Unigestion Holding SA | 6,966 | $1.24M | 0.07% | −2,024−22.5% | Reduced |
| State of Alaska, Department of Revenue | 6,666 | $1.23M | 0.01% | −102−1.5% | Reduced |
| Gulf International Bank (UK) Ltd | 6,574 | $1.21M | 0.03% | −2,281−25.8% | Reduced |
| Linden Thomas Advisory Services, LLC | 6,476 | $1.20M | 0.30% | +433+7.2% | Added |
| Allianz Asset Management GmbH | 6,409 | $1.18M | 0.00% | +6,409 | New |
| SG Americas Securities, LLC | 6,395 | $1.18M | 0.02% | +5,030+368.5% | Added |
| STRS Ohio | 6,298 | $1.16M | 0.01% | +6,298 | New |
| Exchange Traded Concepts, LLC | 6,183 | $1.14M | 0.03% | −1,888−23.4% | Reduced |
| Van Eck Associates Corp | 6,059 | $1.12M | 0.00% | +240+4.1% | Added |
| Virginia Retirement Systems Et Al | 5,928 | $1.09M | 0.01% | −32,972−84.8% | Reduced |
| The PNC Financial Services Group, Inc. | 5,928 | $1.09M | 0.00% | −82−1.4% | Reduced |
| Mariner, LLC | 5,797 | $1.07M | 0.00% | −2,096−26.6% | Reduced |
| Gotham Asset Management, LLC | 5,782 | $1.07M | 0.03% | +881+18.0% | Added |
| Ergoteles LLC | 5,749 | $1.06M | 0.04% | +5,749 | New |
| Knowledge Leaders Capital, LLC | 5,632 | $1.04M | 1.37% | −95−1.7% | Reduced |
| North Star Asset Management Inc | 5,555 | $1.03M | 0.06% | −330−5.6% | Reduced |
| Panagora Asset Management Inc | 5,504 | $1.02M | 0.01% | −258−4.5% | Reduced |
| Nissay Asset Management Corp | 5,403 | $997.1K | 0.01% | −142−2.6% | Reduced |
| Janus Henderson Group PLC | 5,315 | $981.2K | 0.00% | −13−0.2% | Reduced |
| Storebrand Asset Management AS | 5,102 | $941.5K | 0.00% | −76−1.5% | Reduced |
| Susquehanna International Group, LLP | 5,009 | $924.4K | 0.00% | +1,615+47.6% | Added |
| Quadrature Capital Ltd | 4,897 | $904.4K | 0.02% | +4,897 | New |
| Raymond James Trust N.A. | 4,804 | $887.0K | 0.03% | +826+20.8% | Added |
| American Century Companies Inc | 4,958 | $885.2K | 0.00% | +19+0.4% | Added |
| Guggenheim Capital LLC | 4,771 | $880.4K | 0.01% | −1,616−25.3% | Reduced |
| Private Advisor Group, LLC | 4,602 | $849.3K | 0.01% | +4,602 | New |
| Securian Asset Management, Inc | 4,413 | $814.4K | 0.02% | 00.0% | Unchanged |
| Wellington Management Group LLP | 4,345 | $801.8K | 0.00% | +4,345 | New |
| Inspire Advisors, LLC | 4,304 | $794.2K | 0.18% | +4,304 | New |
| Cambridge Investment Research Advisors, Inc. | 4,187 | $773.0K | 0.00% | +978+30.5% | Added |
| Crossmark Global Holdings, Inc. | 4,171 | $770.0K | 0.02% | +166+4.1% | Added |
| Prudential Financial Inc | 4,166 | $768.8K | 0.00% | +1,155+38.4% | Added |
| Macquarie Group Ltd | 4,126 | $761.4K | 0.00% | 00.0% | Unchanged |
| Arkadios Wealth Advisors | 3,965 | $731.7K | 0.09% | +832+26.6% | Added |
| Westpac Banking Corp | 3,952 | $729.3K | 0.01% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 3,924 | $724.1K | 0.00% | −23,166−85.5% | Reduced |
| CI Private Wealth, LLC | 3,861 | $712.5K | 0.00% | +2,338+153.5% | Added |
| Pathstone Family Office, LLC | 3,836 | $697.9K | 0.01% | −1,310−25.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 3,772 | $696.1K | 0.01% | −318−7.8% | Reduced |
| Maryland State Retirement & Pension System | 3,736 | $689.4K | 0.02% | 00.0% | Unchanged |
| Verus Capital Partners, LLC | 3,651 | $673.8K | 0.11% | 00.0% | Unchanged |
| Institutional & Family Asset Management, LLC | 3,650 | $673.6K | 0.11% | 00.0% | Unchanged |
| Twin Tree Management, LP | 3,587 | $661.9K | 0.02% | +2,387+198.9% | Added |
| Nordea Investment Management AB | 3,627 | $655.4K | 0.00% | −259−6.7% | Reduced |
| MML Investors Services, LLC | 3,507 | $647.0K | 0.00% | −603−14.7% | Reduced |
| Winton Group Ltd | 3,499 | $645.7K | 0.04% | +438+14.3% | Added |
| Terry L. Blaker | 3,459 | $638.3K | 0.06% | −259−7.0% | Reduced |
| Oxford Financial Group Ltd | 3,430 | $633.0K | 0.07% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 3,349 | $618.0K | 0.00% | +3,114+1,325.1% | Added |
| Simplex Trading, LLC | 3,335 | $615.0K | 0.03% | +2,504+301.3% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 3,300 | $609.0K | 0.01% | +3,300 | New |
| Franklin Resources Inc | 3,282 | $605.7K | 0.00% | −912−21.7% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 3,113 | $574.5K | 0.01% | 00.0% | Unchanged |
| Lombard Odier Asset Management (Europe) Ltd | 3,100 | $572.1K | 0.03% | −800−20.5% | Reduced |
| Qtron Investments LLC | 3,059 | $564.5K | 0.12% | +3,059 | New |
| Steel Peak Wealth Management LLC | 3,051 | $563.0K | 0.04% | +3,051 | New |
| M&G Investment Management Ltd | 3,023 | $559.3K | 0.00% | +1,349+80.6% | Added |
| ProShare Advisors LLC | 3,022 | $557.7K | 0.00% | −688−18.5% | Reduced |
| DAFNA Capital Management LLC | 3,000 | $553.6K | 0.17% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 2,923 | $539.0K | 0.00% | +100+3.5% | Added |
| PAX Financial Group, LLC | 2,914 | $537.8K | 0.13% | +2,914 | New |
| Seaport Global Advisors, LLC | 2,912 | $537.4K | 1.70% | +1,230+73.1% | Added |
| Sigma Planning Corp | 2,806 | $517.8K | 0.02% | +4+0.1% | Added |
| Prudential PLC | 2,783 | $513.6K | 0.01% | +3+0.1% | Added |
| Edgestream Partners, L.P. | 2,782 | $513.4K | 0.06% | −625−18.3% | Reduced |
| Baird Financial Group, Inc. | 2,759 | $509.1K | 0.00% | −84−3.0% | Reduced |
| Duality Advisers, LP | 2,701 | $498.4K | 0.06% | +2,701 | New |
| Blair William & Co | 2,646 | $488.3K | 0.00% | +2,646 | New |
| Mitsubishi UFJ Asset Management (UK) Ltd. | 2,600 | $480.0K | 0.31% | −1,000−27.8% | Reduced |
| National Asset Management, Inc. | 2,594 | $478.7K | 0.01% | +2,594 | New |
| Candriam Luxembourg S.C.A. | 2,813 | $477.8K | 0.00% | −553−16.4% | Reduced |
| Buckhead Capital Management LLC | 2,545 | $469.7K | 0.11% | 00.0% | Unchanged |
| Shelton Capital Management | 2,474 | $456.6K | 0.02% | 00.0% | Unchanged |
| Intech Investment Management LLC | 2,459 | $453.8K | 0.00% | −9,426−79.3% | Reduced |
| Vestcor Inc | 2,444 | $451.0K | 0.02% | −500−17.0% | Reduced |
| Coldstream Capital Management Inc | 2,382 | $439.6K | 0.01% | −73−3.0% | Reduced |
| Red Spruce Capital, LLC | 2,346 | $432.9K | 0.25% | +83+3.7% | Added |
| Bank of Nova Scotia | 2,310 | $426.3K | 0.00% | −52,801−95.8% | Reduced |
| Independent Advisor Alliance | 2,295 | $423.5K | 0.02% | +2,295 | New |
| Tower Research Capital LLC (TRC) | 2,180 | $402.0K | 0.01% | +398+22.3% | Added |
| BancorpSouth Bank | 2,172 | $400.8K | 0.04% | 00.0% | Unchanged |
| Holocene Advisors, LP | 2,150 | $396.8K | 0.00% | −3,875−64.3% | Reduced |
| HighTower Advisors, LLC | 2,138 | $395.0K | 0.00% | +72+3.5% | Added |
| Man Group plc | – | $385.7K | 0.00% | – | – |
| Silvercrest Asset Management Group LLC | 1,972 | $363.9K | 0.00% | −38−1.9% | Reduced |
| Yorktown Management & Research Co Inc | 1,950 | $359.9K | 0.39% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 1,945 | $359.0K | 0.00% | −469−19.4% | Reduced |
| Commerce Bank | 1,938 | $357.6K | 0.00% | 00.0% | Unchanged |
| Stifel Financial Corp | 1,913 | $353.0K | 0.00% | −95−4.7% | Reduced |
| Aviva PLC | 1,848 | $341.0K | 0.00% | −4,697−71.8% | Reduced |
| Advisor Partners II, LLC | 1,845 | $340.5K | 0.02% | +39+2.2% | Added |
| AE Wealth Management LLC | 1,829 | $337.5K | 0.00% | +108+6.3% | Added |
| Janney Capital Management LLC | 1,787 | $330.0K | 0.02% | +15+0.8% | Added |
| M&T Bank Corp | 1,775 | $327.2K | 0.00% | +1+0.1% | Added |
| CWM Advisors, LLC | 1,727 | $318.8K | 0.04% | +1,727 | New |
| Barrett & Company, Inc. | 1,700 | $313.7K | 0.20% | 00.0% | Unchanged |
| Profund Advisors LLC | 1,688 | $311.5K | 0.02% | −472−21.9% | Reduced |
| Captrust Financial Advisors | 1,636 | $301.9K | 0.00% | +53+3.3% | Added |
| Oak Thistle LLC | 1,635 | $301.7K | 0.18% | +1,635 | New |
| Pitcairn Co | 1,632 | $301.2K | 0.03% | −5−0.3% | Reduced |