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 2022
Institutional positions in Masimo Corp as of Mar 31, 2022. 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
- 457
- −57 vs. Q4 2021
- Shares held
- 45.4M
- −981.6K (−2.1%) vs. Q4 2021
- Total value
- $6.61B
- −$6.96B (−51.3%) vs. Q4 2021
- New holders
- 73
- 180 more added
- Sold out
- 130
- 136 more reduced
6 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Virtu Financial LLC | 5,341 | $777.0K | 0.06% | +5,341 | New |
| Nissay Asset Management Corp | 5,616 | $817.0K | 0.01% | +103+1.9% | Added |
| Truist Financial Corp | 5,638 | $821.0K | 0.00% | −317−5.3% | Reduced |
| Janney Montgomery Scott LLC | 5,866 | $854.0K | 0.00% | −72−1.2% | Reduced |
| Oak Thistle LLC | 5,903 | $859.0K | 0.45% | +4,122+231.4% | Added |
| FORA Capital, LLC | 5,615 | $873.0K | 0.16% | +3,767+203.8% | Added |
| Allstate Corp | 6,080 | $885.0K | 0.02% | −4,706−43.6% | Reduced |
| Private Advisor Group, LLC | 6,117 | $890.0K | 0.01% | +1,379+29.1% | Added |
| Tower Research Capital LLC (TRC) | 6,586 | $959.0K | 0.01% | +2,587+64.7% | Added |
| Tributary Capital Management, LLC | 6,730 | $979.0K | 0.08% | −1,170−14.8% | Reduced |
| Advisory Services Network, LLC | 6,744 | $982.0K | 0.03% | +5,745+575.1% | Added |
| Brinker Capital Investments, LLC | 6,758 | $984.0K | 0.02% | −482−6.7% | Reduced |
| CenterBook Partners LP | 6,795 | $989.0K | 0.35% | +3,995+142.7% | Added |
| Teachers Retirement System of the State of Kentucky | 6,826 | $993.0K | 0.01% | −1,921−22.0% | Reduced |
| Bokf, NA | 6,856 | $997.0K | 0.02% | +6,856 | New |
| The PNC Financial Services Group, Inc. | 7,183 | $1.05M | 0.00% | −2,805−28.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,208 | $1.05M | 0.01% | +783+12.2% | Added |
| SG Americas Securities, LLC | 7,272 | $1.06M | 0.01% | +3,979+120.8% | Added |
| Shay Capital LLC | 7,500 | $1.09M | 0.39% | +7,500 | New |
| Public Employees Retirement Association of Colorado | 7,537 | $1.10M | 0.00% | 00.0% | Unchanged |
| IFM Investors Pty Ltd | 7,543 | $1.10M | 0.02% | +907+13.7% | Added |
| Duality Advisers, LP | 7,547 | $1.10M | 0.12% | +7,547 | New |
| Arcadia Investment Management Corp | 7,613 | $1.11M | 0.21% | −5,597−42.4% | Reduced |
| Point72 Hong Kong Ltd | 7,642 | $1.11M | 0.10% | +7,642 | New |
| Janus Henderson Group PLC | 7,678 | $1.12M | 0.00% | −2,444−24.1% | Reduced |
| Kornitzer Capital Management Inc | 7,720 | $1.12M | 0.02% | 00.0% | Unchanged |
| Capitolis Advisors LLC | 7,761 | $1.13M | 0.06% | −144,614−94.9% | Reduced |
| Boothbay Fund Management, LLC | 7,838 | $1.14M | 0.04% | +6,786+645.1% | Added |
| Magnetar Financial LLC | 7,866 | $1.15M | 0.01% | +6,476+465.9% | Added |
| Terry L. Blaker | 7,891 | $1.15M | 0.09% | −379−4.6% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 8,438 | $1.23M | 0.03% | +16+0.2% | Added |
| PEAK6 Investments LLC | 8,572 | $1.25M | 0.04% | +6,752+371.0% | Added |
| American Century Companies Inc | 8,799 | $1.28M | 0.00% | +194+2.3% | Added |
| Gulf International Bank (UK) Ltd | 8,855 | $1.29M | 0.02% | 00.0% | Unchanged |
| Utah Retirement Systems | 8,921 | $1.30M | 0.02% | −100−1.1% | Reduced |
| CWM Advisors, LLC | 9,026 | $1.31M | 0.15% | +1,104+13.9% | Added |
| Victory Capital Management Inc | 11,668 | $1.32M | 0.00% | −10,687−47.8% | Reduced |
| Assetmark, Inc | 9,185 | $1.34M | 0.01% | +2,671+41.0% | Added |
| Guggenheim Capital LLC | 9,218 | $1.34M | 0.01% | +1,437+18.5% | Added |
| Birchview Capital, LP | 9,280 | $1.35M | 0.97% | +1,280+16.0% | Added |
| Diversified Trust Co | 9,312 | $1.35M | 0.05% | +5,141+123.3% | Added |
| Xponance, Inc. | 9,336 | $1.36M | 0.02% | −109−1.2% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 9,715 | $1.41M | 0.01% | −2,600−21.1% | Reduced |
| NN Investment Partners Holdings N.V. | 9,759 | $1.42M | 0.01% | +9,759 | New |
| Cardinal Capital Management | 9,771 | $1.42M | 0.29% | +824+9.2% | Added |
| Y-Intercept (Hong Kong) Ltd | 9,862 | $1.44M | 0.33% | +9,862 | New |
| Eukles Asset Management | 9,885 | $1.44M | 0.78% | −450−4.4% | Reduced |
| Brown Advisory Inc | 9,912 | $1.44M | 0.00% | +4,201+73.6% | Added |
| Creative Planning | 9,939 | $1.45M | 0.00% | +1,210+13.9% | Added |
| Nomura Asset Management Co Ltd | 10,227 | $1.49M | 0.01% | −18,358−64.2% | Reduced |
| Robeco Institutional Asset Management B.V. | 10,430 | $1.52M | 0.00% | +5,811+125.8% | Added |
| New Mexico Educational Retirement Board | 10,500 | $1.53M | 0.06% | 00.0% | Unchanged |
| Jane Street Group, LLC | 10,659 | $1.55M | 0.00% | +5,405+102.9% | Added |
| Seeyond | 10,784 | $1.57M | 0.16% | +5,548+106.0% | Added |
| Teacher Retirement System of Texas | 10,794 | $1.57M | 0.01% | −167−1.5% | Reduced |
| Storebrand Asset Management AS | 10,874 | $1.58M | 0.01% | +1,424+15.1% | Added |
| AlphaCrest Capital Management LLC | 11,188 | $1.63M | 0.09% | +1,582+16.5% | Added |
| Graham Capital Management, L.P. | 11,392 | $1.66M | 0.07% | +10,105+785.2% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 11,628 | $1.70M | 0.01% | −1,793−13.4% | Reduced |
| Moore Capital Management, LP | 11,826 | $1.72M | 0.06% | −78,005−86.8% | Reduced |
| Vontobel Holding Ltd. | 11,421 | $1.77M | 0.02% | −1,786−13.5% | Reduced |
| Louisiana State Employees Retirement System | 13,300 | $1.81M | 0.04% | +200+1.5% | Added |
| Candriam Luxembourg S.C.A. | 12,841 | $1.87M | 0.01% | +1,500+13.2% | Added |
| De Burlo Group Inc | 12,852 | $1.87M | 0.35% | −500−3.7% | Reduced |
| State of Michigan Retirement System | 12,896 | $1.88M | 0.01% | +30+0.2% | Added |
| Franklin Resources Inc | 12,904 | $1.88M | 0.00% | +1,043+8.8% | Added |
| Banque Pictet & Cie SA | 13,086 | $1.91M | 0.01% | +3,054+30.4% | Added |
| Caisse de Depot Et Placement du Quebec | 13,100 | $1.91M | 0.00% | −15,100−53.5% | Reduced |
| Security Asset Management | 13,104 | $1.91M | 0.82% | −537−3.9% | Reduced |
| Aviva PLC | 13,196 | $1.92M | 0.01% | −14,184−51.8% | Reduced |
| Gotham Asset Management, LLC | 13,320 | $1.94M | 0.06% | +11,329+569.0% | Added |
| Tudor Investment Corp Et Al | 13,373 | $1.95M | 0.05% | +13,373 | New |
| Employees Retirement System of Texas | 13,400 | $1.95M | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 13,584 | $1.98M | 0.07% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 12,925 | $1.98M | 0.00% | +5,613+76.8% | Added |
| Quadrature Capital Ltd | 13,897 | $2.02M | 0.08% | +13,897 | New |
| STRS Ohio | 14,094 | $2.05M | 0.01% | +11,788+511.2% | Added |
| North Star Asset Management Inc | 14,330 | $2.09M | 0.11% | −7,106−33.1% | Reduced |
| Arizona State Retirement System | 14,603 | $2.13M | 0.02% | +362+2.5% | Added |
| Exchange Traded Concepts, LLC | 14,874 | $2.17M | 0.04% | +4,202+39.4% | Added |
| Unigestion Holding SA | 15,032 | $2.19M | 0.09% | 00.0% | Unchanged |
| Personal Capital Advisors Corp | 15,081 | $2.19M | 0.01% | −60.0% | Reduced |
| Advisor Group Holdings, Inc. | 6,240 | $2.23M | 0.00% | −2,878−31.6% | Reduced |
| Twinbeech Capital LP | 15,779 | $2.30M | 0.10% | +15,779 | New |
| Lockerman Financial Group, Inc. | 15,900 | $2.31M | 6.25% | 00.0% | Unchanged |
| Ascent Wealth Partners, LLC | 15,931 | $2.32M | 0.43% | +1,286+8.8% | Added |
| TD Asset Management Inc | 16,105 | $2.34M | 0.00% | −183,280−91.9% | Reduced |
| South Dakota Investment Council | 16,227 | $2.36M | 0.05% | −428−2.6% | Reduced |
| Royal London Asset Management Ltd | 16,284 | $2.37M | 0.01% | +1,839+12.7% | Added |
| Oregon Public Employees Retirement Fund | 16,292 | $2.37M | 0.02% | −107−0.7% | Reduced |
| Alberta Investment Management Corp | 16,304 | $2.37M | 0.01% | +7,604+87.4% | Added |
| Norges Bank | 16,543 | $2.41M | 0.00% | −406,853−96.1% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 17,896 | $2.60M | 0.01% | −457−2.5% | Reduced |
| Federated Hermes, Inc. | 18,215 | $2.65M | 0.01% | +226+1.3% | Added |
| Ensign Peak Advisors, Inc | 18,418 | $2.68M | 0.01% | −5,132−21.8% | Reduced |
| Pictet Asset Management SA | 18,580 | $2.70M | 0.00% | +470+2.6% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 18,619 | $2.71M | 0.03% | +1,775+10.5% | Added |
| Walleye Capital LLC | 18,965 | $2.76M | 0.08% | +17,885+1,656.0% | Added |
| LRT Capital Management, LLC | 21,541 | $3.13M | 2.01% | +21,541 | New |
| Royal Bank of Canada | 21,655 | $3.15M | 0.00% | −20,690−48.9% | Reduced |