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, Q4 2025
Institutional positions in Masimo Corp as of Dec 31, 2025. 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
- 392
- +37 vs. Q3 2025
- Shares held
- 55.4M
- −842.2K (−1.5%) vs. Q3 2025
- Total value
- $7.20B
- −$1.09B (−13.1%) vs. Q3 2025
- New holders
- 86
- 102 more added
- Sold out
- 49
- 132 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: 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, Q4 2025
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cerity Partners LLC | 23,774 | $3.09M | 0.00% | +21,363+886.1% | Added |
| Thrivent Financial for Lutherans | 23,174 | $3.01M | 0.01% | +8,323+56.0% | Added |
| Amalgamated Bank | 21,551 | $2.80M | 0.02% | −1,050−4.6% | Reduced |
| Cardinal Capital Management | 21,462 | $2.79M | 0.37% | +282+1.3% | Added |
| Mariner, LLC | 21,449 | $2.79M | 0.00% | +21,449 | New |
| South Dakota Investment Council | 21,268 | $2.77M | 0.05% | −1,800−7.8% | Reduced |
| Janus Henderson Group PLC | 20,000 | $2.60M | 0.00% | 00.0% | Unchanged |
| Advisors Asset Management, Inc. | 19,858 | $2.58M | 0.04% | −4,330−17.9% | Reduced |
| State of Wisconsin Investment Board | 19,490 | $2.53M | 0.01% | −2,248−10.3% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 19,484 | $2.53M | 0.02% | −511−2.6% | Reduced |
| Mutual of America Capital Management LLC | 19,001 | $2.47M | 0.03% | −2,324−10.9% | Reduced |
| Treasurer of the State of North Carolina | 18,886 | $2.46M | 0.01% | −1,382−6.8% | Reduced |
| Wells Fargo & Company | 18,697 | $2.43M | 0.00% | +1,417+8.2% | Added |
| Worldquant Millennium Advisors LLC | 18,558 | $2.41M | 0.01% | +15,896+597.1% | Added |
| CWM, LLC | 18,535 | $2.41M | 0.01% | +17,671+2,045.3% | Added |
| Commerce Bank | 17,876 | $2.32M | 0.01% | −1,015−5.4% | Reduced |
| Creative Planning | 17,109 | $2.23M | 0.00% | +6,075+55.1% | Added |
| Envestnet Asset Management Inc | 16,975 | $2.21M | 0.00% | −4,167−19.7% | Reduced |
| Susquehanna International Group, LLP | 16,849 | $2.19M | 0.00% | +14,124+518.3% | Added |
| State of New Jersey Common Pension Fund D | 16,652 | $2.17M | 0.01% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 16,429 | $2.14M | 0.00% | +7,510+84.2% | Added |
| Dark Forest Capital Management LP | 16,385 | $2.13M | 0.10% | +6,376+63.7% | Added |
| Tudor Investment Corp Et Al | 16,242 | $2.11M | 0.01% | −15,399−48.7% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 16,147 | $2.10M | 0.03% | +16,147 | New |
| Yousif Capital Management, LLC | 14,528 | $2.07M | 0.02% | −356−2.4% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 15,932 | $2.07M | 0.01% | −825−4.9% | Reduced |
| ADAR1 Capital Management, LLC | 15,000 | $1.95M | 0.15% | 00.0% | Unchanged |
| Brown Advisory Inc | 14,854 | $1.93M | 0.00% | −679−4.4% | Reduced |
| Teachers Retirement System of the State of Kentucky | 14,771 | $1.92M | 0.01% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 14,730 | $1.92M | 0.01% | +2,400+19.5% | Added |
| State of Tennessee, Treasury Department | 13,918 | $1.91M | 0.01% | −596−4.1% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 14,572 | $1.90M | 0.00% | −382,676−96.3% | Reduced |
| Trexquant Investment LP | 13,920 | $1.81M | 0.02% | +13,920 | New |
| Public Employees Retirement System of Ohio | 13,879 | $1.81M | 0.01% | −517−3.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 13,537 | $1.76M | 0.00% | +678+5.3% | Added |
| Ameritas Investment Partners, Inc. | 13,272 | $1.73M | 0.05% | +4,616+53.3% | Added |
| Quantinno Capital Management LP | 13,253 | $1.72M | 0.00% | −26,336−66.5% | Reduced |
| Lecap Asset Management Ltd | 13,196 | $1.72M | 0.68% | +13,196 | New |
| Empower Advisory Group, LLC | 13,105 | $1.70M | 0.00% | −1,000−7.1% | Reduced |
| Jump Financial, LLC | 12,953 | $1.68M | 0.02% | +12,953 | New |
| Arizona State Retirement System | 12,818 | $1.67M | 0.01% | −791−5.8% | Reduced |
| XTX Topco Ltd | 12,746 | $1.66M | 0.04% | +12,746 | New |
| Louisiana State Employees Retirement System | 12,600 | $1.64M | 0.03% | −300−2.3% | Reduced |
| Comerica Bank | 12,233 | $1.59M | 0.01% | −221,194−94.8% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 11,371 | $1.56M | 0.00% | +9,423+483.7% | Added |
| Lockerman Financial Group, Inc. | 11,800 | $1.53M | 2.94% | 00.0% | Unchanged |
| Summit Trail Advisors, LLC | 11,696 | $1.52M | 0.03% | +7,971+214.0% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 11,425 | $1.49M | 0.01% | −426−3.6% | Reduced |
| Illinois Municipal Retirement Fund | 11,359 | $1.48M | 0.02% | −4,206−27.0% | Reduced |
| Paradigm Capital Management Inc | 11,353 | $1.48M | 0.06% | 00.0% | Unchanged |
| Royal Bank of Canada | 11,340 | $1.47M | 0.00% | −115,777−91.1% | Reduced |
| Sterling Capital Management LLC | 10,885 | $1.42M | 0.02% | +272+2.6% | Added |
| Mercer Global Advisors Inc | 10,862 | $1.41M | 0.00% | +10,862 | New |
| State of Michigan Retirement System | 10,796 | $1.40M | 0.01% | −200−1.8% | Reduced |
| KLP Kapitalforvaltning AS | 10,600 | $1.38M | 0.01% | +800+8.2% | Added |
| Picton Mahoney Asset Management | 10,500 | $1.37M | 0.01% | −1,470−12.3% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 10,215 | $1.33M | 0.02% | −78−0.8% | Reduced |
| New Mexico Educational Retirement Board | 9,900 | $1.29M | 0.04% | 00.0% | Unchanged |
| Victory Capital Management Inc | 9,836 | $1.28M | 0.00% | −23,209−70.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,698 | $1.26M | 0.00% | +508+5.5% | Added |
| Occudo Quantitative Strategies LP | 9,663 | $1.26M | 0.08% | +4,515+87.7% | Added |
| Harbor Capital Advisors, Inc. | 9,599 | $1.25M | 0.10% | −333−3.4% | Reduced |
| Polymer Capital Management (US) LLC | 9,523 | $1.24M | 0.16% | +3,647+62.1% | Added |
| Dynamic Technology Lab Private Ltd | 9,480 | $1.23M | 0.28% | +9,480 | New |
| ExodusPoint Capital Management, LP | 9,385 | $1.22M | 0.01% | +9,385 | New |
| Oregon Public Employees Retirement Fund | 9,074 | $1.18M | 0.02% | −200−2.2% | Reduced |
| Xponance, Inc. | 8,738 | $1.14M | 0.01% | −692−7.3% | Reduced |
| Redwood Investment Management, LLC | 8,435 | $1.10M | 0.12% | +8,435 | New |
| Birchview Capital, LP | 8,280 | $1.08M | 0.63% | 00.0% | Unchanged |
| OP Asset Management Ltd | 8,207 | $1.07M | 0.01% | +1,899+30.1% | Added |
| Bryn Mawr Trust Co | 8,024 | $1.04M | 0.02% | −875−9.8% | Reduced |
| De Burlo Group Inc | 7,952 | $1.03M | 0.13% | −100−1.2% | Reduced |
| Wellington Management Group LLP | 7,832 | $1.02M | 0.00% | +5,638+257.0% | Added |
| SEI Investments Co | 7,715 | $1.00M | 0.00% | −13,940−64.4% | Reduced |
| BNP Paribas Arbitrage, SA | 7,529 | $979.2K | 0.00% | −6,978−48.1% | Reduced |
| JustInvest LLC | 7,523 | $978.4K | 0.01% | +730+10.7% | Added |
| LPL Financial LLC | 7,512 | $977.0K | 0.00% | +190+2.6% | Added |
| Pacer Advisors, Inc. | 7,360 | $957.2K | 0.00% | +1,280+21.1% | Added |
| The PNC Financial Services Group, Inc. | 7,287 | $947.7K | 0.00% | +35+0.5% | Added |
| Pathstone Holdings, LLC | 7,107 | $924.3K | 0.00% | +147+2.1% | Added |
| Deutsche Bank AG | 6,736 | $876.1K | 0.00% | +131+2.0% | Added |
| Pictet Asset Management Holding SA | 6,540 | $850.6K | 0.00% | −301−4.4% | Reduced |
| Navellier & Associates Inc | 6,310 | $820.7K | 0.09% | 00.0% | Unchanged |
| Graham Capital Management, L.P. | 6,017 | $782.6K | 0.03% | +247+4.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 5,812 | $755.9K | 0.00% | +40+0.7% | Added |
| Cinctive Capital Management LP | 5,681 | $738.9K | 0.04% | +5,681 | New |
| Colony Group, LLC | 5,474 | $711.9K | 0.00% | +5,474 | New |
| Magnetar Financial LLC | 5,455 | $709.5K | 0.01% | +5,455 | New |
| Malaga Cove Capital, LLC | 5,366 | $697.9K | 0.24% | +350+7.0% | Added |
| B.O.S.S. Retirement Advisors, LLC | 5,337 | $694.1K | 0.22% | 00.0% | Unchanged |
| Bank of Nova Scotia | 5,247 | $682.4K | 0.00% | +5,247 | New |
| FORA Capital, LLC | 5,174 | $672.9K | 0.08% | +1,552+42.8% | Added |
| Exchange Traded Concepts, LLC | 5,101 | $663.4K | 0.01% | +772+17.8% | Added |
| Neuberger Berman Group LLC | 5,006 | $651.1K | 0.00% | +106+2.2% | Added |
| Bank of Montreal | 4,976 | $647.2K | 0.00% | −24−0.5% | Reduced |
| Laird Norton Trust Company, LLC | 4,778 | $621.4K | 0.01% | +4,778 | New |
| Capstone Investment Advisors, LLC | 4,718 | $613.6K | 0.00% | +3,105+192.5% | Added |
| Public Employees Retirement Association of Colorado | 4,685 | $609.0K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 4,633 | $602.6K | 0.00% | −256−5.2% | Reduced |
| State of Alaska, Department of Revenue | 4,602 | $598.0K | 0.01% | −445−8.8% | Reduced |